004 Datenverarbeitung; Informatik
Refine
Has Fulltext
- yes (257)
Year of publication
Document Type
- Journal article (123)
- Doctoral Thesis (68)
- Working Paper (37)
- Preprint (19)
- Conference Proceeding (8)
- Report (2)
Language
- English (257) (remove)
Keywords
- virtual reality (16)
- Datennetz (14)
- Leistungsbewertung (13)
- Quran (8)
- Robotik (8)
- Koran (7)
- Text Mining (7)
- Mobiler Roboter (6)
- Autonomer Roboter (5)
- Komplexitätstheorie (5)
- Maschinelles Lernen (5)
- Netzwerk (5)
- Optimierung (5)
- P4 (5)
- Theoretische Informatik (5)
- Visualisierung (5)
- artificial intelligence (5)
- machine learning (5)
- Overlay-Netz (4)
- Routing (4)
- SDN (4)
- Verteiltes System (4)
- XML (4)
- augmented reality (4)
- deep learning (4)
- human-computer interaction (4)
- Algorithmus (3)
- Approximationsalgorithmus (3)
- Bayesian classifier (3)
- Computer Vision (3)
- Deep learning (3)
- Dienstgüte (3)
- Drahtloses Sensorsystem (3)
- Graph (3)
- Graphenzeichnen (3)
- IoT (3)
- Komplexität (3)
- Machine Learning (3)
- Mensch-Maschine-Schnittstelle (3)
- Netzwerkmanagement (3)
- Optimization (3)
- Peer-to-Peer-Netz (3)
- Performance Evaluation (3)
- QoE (3)
- Quadrocopter (3)
- Quality of Experience (3)
- Rechnernetz (3)
- Ressourcenmanagement (3)
- Robotics (3)
- Softwarearchitektur (3)
- Textvergleich (3)
- Visualization (3)
- Wissensmanagement (3)
- approximation algorithm (3)
- crowdsensing (3)
- database (3)
- graph drawing (3)
- immersion (3)
- mHealth (3)
- neural networks (3)
- resistance (3)
- simulation (3)
- 5G (2)
- Algorithmische Geometrie (2)
- Ausfallsicheres System (2)
- Ausfallsicherheit (2)
- Base text (2)
- Benutzerschnittstelle (2)
- CSS (2)
- Cascading Style Sheets (2)
- Content Management (2)
- Crowdsourcing (2)
- Data Mining (2)
- Dot-Depth Problem (2)
- Drahtloses lokales Netz (2)
- Effizienter Algorithmus (2)
- Entscheidbarkeit (2)
- Fernwartung (2)
- Future Internet (2)
- Gothenburg model (2)
- Human-Robot-Interaction (2)
- IEEE 802.11 (2)
- Internet of Things (2)
- Kleinsatellit (2)
- Knowledge Management (2)
- Kreuzung (2)
- Localization (2)
- Lokalisation (2)
- MP-DCCP (2)
- Maschinelles Sehen (2)
- Mensch-Maschine-System (2)
- Mensch-Roboter-Interaktion (2)
- Meta-model (2)
- Mixed Reality (2)
- Modellierung (2)
- NP-hardness (2)
- PROLOG <Programmiersprache> (2)
- Punktwolke (2)
- Quadrotor (2)
- Resilience (2)
- Resource Management (2)
- Simulation (2)
- Situation Awareness (2)
- Software Defined Networking (2)
- Software Engineering (2)
- Teleoperation (2)
- Text mining (2)
- Textual alterations weighting system (2)
- Textual document collation (2)
- Theoretical Computer Science (2)
- User Interface (2)
- Verbotsmuster (2)
- Wissensrepräsentation (2)
- Wrapper <Programmierung> (2)
- XR (2)
- automation (2)
- connected mobility applications (2)
- cosmology (2)
- crossing minimization (2)
- decidability (2)
- design (2)
- dot-depth problem (2)
- education (2)
- educational tool (2)
- endliche Automaten (2)
- endoscopy (2)
- engineering (2)
- evolution (2)
- exposure (2)
- finite automata (2)
- fog computing (2)
- forbidden patterns (2)
- framework (2)
- fully convolutional neural networks (2)
- games (2)
- gastroenterology (2)
- genetics (2)
- historical document analysis (2)
- immersive technologies (2)
- knowledge representation (2)
- measurements (2)
- metabolic modeling (2)
- mobile networks (2)
- multipath (2)
- multipath scheduling (2)
- natural variation (2)
- navigation (2)
- network calculus (2)
- networks (2)
- ontology (2)
- perception (2)
- prediction (2)
- regular languages (2)
- reguläre Sprachen (2)
- satellite communication (2)
- scalability (2)
- segmentation (2)
- self-aware computing (2)
- sensor (2)
- smart speaker (2)
- spatial presence (2)
- tinnitus (2)
- virtual agent (2)
- virtual environments (2)
- 26S RDNA Data (1)
- 3D Laser Scanning (1)
- 3D Pointcloud (1)
- 3D Punktwolke (1)
- 3D Reconstruction (1)
- 3D Sensor (1)
- 3D Vision (1)
- 3D collation (1)
- 3D fluoroscopy (1)
- 3D point cloud (1)
- 3D thermal mapping (1)
- 3D viewer (1)
- 3D-Rekonstruktion (1)
- 3D-reconstruction methods (1)
- 3DTK toolkit (1)
- 4D-GIS (1)
- 4G Networks (1)
- 5G core network (1)
- 5G-ATSSS (1)
- 5GC (1)
- 6DOF Pose Estimation (1)
- 6G (1)
- ACKR4 (1)
- AI (1)
- AKT (1)
- ATSSSS (1)
- AVA (1)
- Abhängigskeitsgraph (1)
- Accessibility (1)
- Add-on-Miss (1)
- Admission Control (1)
- Analysis (1)
- Anwendungsfall (1)
- Approximation (1)
- Arctic (1)
- Arterie (1)
- Artery (1)
- Automat <Automatentheorie> (1)
- Automata Theory (1)
- Automatentheorie (1)
- Autonomous Robot (1)
- Autonomous UAV (1)
- Autonomous multi-vehicle systems (1)
- Autorotation (1)
- BPM (1)
- BPMN (1)
- Backbone-Netz (1)
- Background Knowledge (1)
- Balloon (1)
- Banks Islands (1)
- Barcodes (1)
- Bayes-Klassifikator (1)
- Benutzererlebnis (1)
- Benutzerforschung (1)
- Benutzerinteraktion (1)
- Berechenbarkeit (1)
- Berechnungskomplexität (1)
- Betriebssystem (1)
- Bewegungskompensation (1)
- Bewegungskoordination (1)
- Bildverarbeitung (1)
- Biological Networks (1)
- Biology (1)
- BitTorrent (1)
- Bodenstation (1)
- Boolean Grammar (1)
- Boolean equivalence (1)
- Boolean function (1)
- Boolean functions (1)
- Boolean hierarchy (1)
- Boolean isomorphism (1)
- Boolean tree (1)
- Boolesche Funktionen (1)
- Boolesche Grammatik (1)
- Boolesche Hierarchie (1)
- CASE (1)
- CD4+T cells (1)
- CD8+T cells (1)
- CD95 (1)
- CETCH cycle (1)
- CHI Conference (1)
- CLIP (1)
- CO2-sequestration (1)
- COVID-19 (1)
- Caenorhabditis elegans (1)
- Call Graph (1)
- Causes of revelation (1)
- Chapters arrangement (1)
- Charged aerosol detector (CAD) (1)
- Chord (1)
- Chronology of revelation (1)
- Clones (1)
- Cloud Gaming (1)
- Clustering (1)
- Colonial volvocales chlorophyta (1)
- Communication Networks (1)
- Complex Systems (1)
- Complexity Theory (1)
- Compression (1)
- Computational Geometry (1)
- Computational complexity (1)
- Computer software (1)
- Computersimulation (1)
- Computerspiel (1)
- Computerunterstütztes Lernen (1)
- Containerization (1)
- Content Distribution (1)
- Crowdsensing (1)
- CubeSat (1)
- DHT (1)
- DNA (1)
- DNA storage (1)
- Daedalus-Projekt (1)
- Dasycladales chlorophyta (1)
- Datenkommunikationsnetz (1)
- Deep Georeferencing (1)
- Deep Learning (1)
- Dependency Graph (1)
- Design (1)
- Design and Development (1)
- Dezentrale Regelung (1)
- Dichotomy (1)
- Digital Elevation Model (1)
- Dijkstra’s algorithm (1)
- Diskrete Simulation (1)
- Distributed Space Systems (1)
- Domänenspezifische Sprache (1)
- Dot-Depth-Hierarchie (1)
- Drahtloses vermaschtes Netz (1)
- Dreidimensionale Rekonstruktion (1)
- Dreieck (1)
- Dynamic Memory Management (1)
- Dynamische Speicherverwaltung (1)
- E8 symmetry (1)
- EEG (1)
- EEG frequency band analysis (1)
- EEG preprocessing (1)
- EEG processing (1)
- EPM (1)
- Echtzeitsystem (1)
- Echzeit (1)
- Edge-MEC-Cloud (1)
- Edge-based Intelligence (1)
- Eingebettetes System (1)
- Elasticity tensor (1)
- Elastizitätstensor (1)
- Embedded Systems (1)
- Emotion inference (1)
- Emotionserkennung (1)
- Emotionsinterpretation (1)
- Endpoint Mobility (1)
- Energieeffizienz (1)
- Energy efficiency (1)
- Erfüllbarkeitsproblem (1)
- Erweiterte Realität (1)
- Euclidean plane (1)
- Euklidische Ebene (1)
- Expert System (1)
- Expertensystem (1)
- FIFO caching strategies (1)
- FLIMbee (1)
- Fairness (1)
- Fatty acids (1)
- Feature Based Registration (1)
- Fehlertoleranz (1)
- Fernsteuerung (1)
- Flugkörper (1)
- Forces (1)
- Formale Sprache (1)
- Formation (1)
- Formation Flight (1)
- Formationsbewegung (1)
- Formmessung (1)
- Fragmentation (1)
- Fragmentierung (1)
- Frames (1)
- Funkressourcenverwaltung (1)
- GNSS/INS integrated navigation (1)
- Gastroenterologische Endoskopie (1)
- Gefühl (1)
- Generalisierung <Kartografie> (1)
- Generation Problem (1)
- Generierungsproblem (1)
- Genetic Optimization (1)
- Genetische Optimierung (1)
- Georeferenzierung (1)
- Gothenburg Modell (1)
- Gothenburg model of collation process (1)
- Gradient boosted trees (GBT) (1)
- Graphentheorie (1)
- Ground Station Networks (1)
- H.264 SVC (1)
- H.264/SVC (1)
- HGPS (1)
- HHblits (1)
- HMD (Head-Mounted Display) (1)
- HSPA (1)
- HTML (1)
- HTTP adaptive video streaming (1)
- Halbordnungen (1)
- Hardware (1)
- Herzkatheter (1)
- Herzkathetereingriff (1)
- High-performance liquid chromatography (HPLC) (1)
- Hintergrundwissen (1)
- Historical Maps (1)
- Historische Karte (1)
- Historische Landkarten (1)
- Hittitology (1)
- Human-centered computing / Access (1)
- Human-centered computing / Human computer interaction (HCI) / Interaction paradigms / Mixed / augmented reality (1)
- Human-centered computing / Human computer interaction (HCI) / Interaction paradigms / Virtual reality (1)
- Human-centered computing / Human computer interaction (HCI) / Interactiondevices (1)
- Human-centered computing / Human computerinteraction (HCI) / Interaction techniques (1)
- Hurwitz theorem (1)
- I-tasser (1)
- ICEP (1)
- IEEE 802.11e (1)
- IEEE 802.15.4 (1)
- IGFBP2 (1)
- III secretion (1)
- INS/LIDAR integrated navigation (1)
- IP (1)
- IT security (1)
- Image Aesthetic Assessment (1)
- Image Registration (1)
- ImageJ (1)
- Implementierung <Informatik> (1)
- Industrial internet (1)
- Industrie 4.0 (1)
- Information Extraction (1)
- Information Visualization (1)
- Instrument Control Toolbox (1)
- Intelligent Virtual Agents (1)
- InteractionSuitcase (1)
- Interaktion (1)
- Internet (1)
- Internet Protokoll (1)
- IoT-driven processes (1)
- IronChip Evaluation Package (1)
- Isomorphie (1)
- Itinerare (1)
- Itineraries (1)
- JCAS (1)
- JSF (1)
- Jacobian matrix (1)
- Java 3D (1)
- Java <Programmiersprache> (1)
- Java Frameworks (1)
- Java Message Service (1)
- Kademlia (1)
- Kanalzugriff (1)
- Karte (1)
- Kathará (1)
- Kerneldensity estimation (1)
- Klassendiagramm (1)
- Klassifikation (1)
- Klima (1)
- Knowledge Discovery (1)
- Knowledge Management System (1)
- Knowledge Modeling (1)
- Knowledge representation (1)
- Knowledge-based System (1)
- Knowledge-based Systems Engineering (1)
- Kombinatorik (1)
- Kommunikation (1)
- Kommunikationsnetze (1)
- Komplexes System (1)
- Komplexitätsklasse (1)
- Komplexitätsklasse NP (1)
- Konvexe Zeichnungen (1)
- Kooperierende mobile Roboter (1)
- Kreuzungsminimierung (1)
- Kryoelektronenmikroskopie (1)
- Kurve (1)
- Künstliche Intelligenz (1)
- LC-MS/MS (1)
- LFU (1)
- LRU (1)
- Land Cover Classification (1)
- Land plants (1)
- Landkartenbeschriftung (1)
- Landnutzungskartierung (1)
- Laser scanning (1)
- Lava (1)
- Lawhul-Mahfuz (1)
- Lee Smolin (1)
- Lidar (1)
- Lifetime spectroscopy (1)
- Lightning (1)
- Link rate adaptation (1)
- Linkratenanpassung (1)
- Linux (1)
- LoRa (1)
- LoRaWAN (1)
- LoRaWan (1)
- Logic Programming (1)
- Logische Programmierung (1)
- Lunar Caves (1)
- Lunar Exploration (1)
- MAC (1)
- MDR (1)
- MTC (1)
- MVC <Software> (1)
- Mackenzie-River-Delta (1)
- Mapping (1)
- Mars (1)
- Mashup (1)
- Mashup <Internet> (1)
- Mathematische Modellierung (1)
- Mathematisches Modell (1)
- Measurement (1)
- Medical Image Analysis (1)
- Medium <Physik> (1)
- Medizin (1)
- Mehrfahrzeugsysteme (1)
- Mehrkriterielle Optimierung (1)
- Mehrpfadübertragung (1)
- Mehrschichtnetze (1)
- Mehrschichtsystem (1)
- Mensch-Maschine-Kommunikation (1)
- Mesh Networks (1)
- Mesh Netze (1)
- Metaverse (1)
- Methode (1)
- Microarray (1)
- Middleware (1)
- Miniaturisierung (1)
- Minimally invasive vascular intervention (1)
- Mobiles Internet (1)
- Mobilfunk (1)
- Modell (1)
- Modellierungstechniken (1)
- Modularität (1)
- Molecular systematics (1)
- Mond (1)
- Multi-Layer (1)
- Multi-Network Service (1)
- Multi-Netzwerk Dienste (1)
- Multi-Paradigm Programming (1)
- Multi-Paradigm Programming Framework (1)
- Multipath Transmission (1)
- Mustererkennung (1)
- Mycoplasma (1)
- Mycoplasma pneumoniae (1)
- NP (1)
- NP-Vollständigkeit (1)
- NP-complete sets (1)
- NP-hartes Problem (1)
- NP-schweres Problem (1)
- Naïve Bayesian (1)
- Network Emulator (1)
- Network Experiments (1)
- Network Management (1)
- Network Measurements (1)
- Network Virtualization (1)
- Networks (1)
- Netzplantechnik (1)
- Netzplanung (1)
- Netzvirtualisierung (1)
- Netzwerkplanung (1)
- Netzwerkvirtualisierung (1)
- Neuromuscular junctions (1)
- Neuronales Netz (1)
- Newton Methods (1)
- Newton-Verfahren (1)
- Next Generation Networks (1)
- Nichtholonome Fahrzeuge (1)
- Nichtlineare Regelung (1)
- Nuclear RDNA (1)
- Object Detection (1)
- Object-Oriented Programming (1)
- Objektorientierte Programmierung (1)
- Operator (1)
- Optical Flow (1)
- Optimale Kontrolle (1)
- Optimierungsproblem (1)
- Optimization on Lie Groups (1)
- Overlapping (1)
- Overlay (1)
- Overlay Netzwerke (1)
- Overlay networks (1)
- Overlays (1)
- P4-INT (1)
- Panorama Images (1)
- Partition <Mengenlehre> (1)
- Partitionen (1)
- Path Computation Element (1)
- Pattern Recognition (1)
- Peer-to-Peer (1)
- Performance Analysis (1)
- Performance Enhancing Proxies (1)
- Performance Management (1)
- Performance Modeling (1)
- Pfadberechnungselement (1)
- Picosatellite (1)
- Place of revelation (1)
- Planare Graphen (1)
- Planung (1)
- Poisson surface reconstruction (1)
- PolSAR (1)
- Polyeder (1)
- Polypektomie (1)
- Positron annihilation spectroscopy (1)
- Post's Classes (1)
- Postsche Klassen (1)
- Prediction (1)
- Processing Model (1)
- Processing model (1)
- Profile distances (1)
- Programmierbare logische Anordnung (1)
- Publish-Subscribe-System (1)
- QUIC (1)
- QoS (1)
- Quality of Experience (QoE) (1)
- Quality of Experience QoE (1)
- Quality of Service (1)
- Quality of Service (QoS) (1)
- Quality-of-Experience (1)
- Quality-of-Service (1)
- Quality-of-Service (QoS) (1)
- Quantitative structure-property relationship modeling (QSPR) (1)
- Quantor (1)
- RBCL Gene-sequences (1)
- RGB-D (1)
- RNA sequencing (1)
- RRM (1)
- Radarfernerkundung (1)
- Raumdaten (1)
- Real-Time Operating Systems (1)
- Real-time (1)
- Reconstruction of original text (1)
- Refactoring (1)
- Reference Architecture (1)
- Regelung (1)
- Registration (1)
- Registrierung (1)
- Registrierung <Bildverarbeitung> (1)
- Reguläre Sprache (1)
- Relief <Geografie> (1)
- Rendezvous (1)
- Reproducibility (1)
- Resource and Performance Management (1)
- Ressourcen Management (1)
- Ressourcenallokation (1)
- Rettungsroboter (1)
- SARS-CoV-2 (1)
- SBA (1)
- SDN/NVF (1)
- SMLM (1)
- SNP (1)
- Satellit (1)
- Scatter Plot (1)
- Scheduling (1)
- Search-and-Rescue (1)
- Secondary structure (1)
- Selbstkalibrierung (1)
- Self-calibration (1)
- Semantic Web (1)
- Semantics (1)
- Semantik (1)
- Sensing-aaS (1)
- Sensor (1)
- Septins (1)
- Service Mobility (1)
- Sichtbarkeit (1)
- Similarity Measure (1)
- Simulator (1)
- Situationsbewusstsein (1)
- Skype (1)
- Small Satellites (1)
- Smart User Interaction (1)
- Social Web (1)
- Software (1)
- Software Performance Engineering (1)
- Software Performance Modeling (1)
- Software architecture (1)
- Software design (1)
- Software product lines (1)
- Source Code Visualization (1)
- Soziale Software (1)
- Spherical Robot (1)
- Spring (1)
- Stages of Prophet Mohammad’s messengership (1)
- Standardisierung (1)
- Standortproblem (1)
- Statistical classifiers (1)
- Statistics (1)
- Statistische Mechanik (1)
- Statistische Physik (1)
- Sternfreie Sprache (1)
- Steuerung (1)
- Stiffness (1)
- Stochastic Algorithms (1)
- Stochastische Optimierung (1)
- Strahlentherapie (1)
- Straubing-Th´erien-Hierarchie (1)
- Structure-from-Motion (1)
- Strukturelle Komplexität (1)
- Struts (1)
- Subgroup Mining (1)
- Subgruppenentdeckung (1)
- Substruktur (1)
- Support Vector Machine (1)
- Synapses (1)
- Synaptic vesicles (1)
- Synthetic Aperture Radar (1)
- TSN (1)
- TTL (1)
- TTL validation of data consistency (1)
- Telematik (1)
- Terramechanics (1)
- Testbed (1)
- Text categorization (1)
- Text segmentation (1)
- Theoretical computer science (1)
- Thermografie (1)
- Time resolved measurements (1)
- Tomografie (1)
- Topografie (1)
- Torque (1)
- Trainingssystem (1)
- Travelling-salesman-Problem (1)
- Tumor motion (1)
- Tumorbewegung (1)
- U-Bahnlinienplan (1)
- UI and Interaction Design (1)
- UML Klassendiagramm (1)
- UML class diagram (1)
- UMTS (1)
- URL (1)
- URLLC (1)
- Underwater Mapping (1)
- Underwater Scanning (1)
- Unmanned Aerial Vehicle (1)
- Unstetige Regelung (1)
- Usability (1)
- Use case (1)
- User Behavior (1)
- User Participation (1)
- V-antigen (1)
- VNF (1)
- VPN (1)
- Variability (1)
- Venus (1)
- Veranstaltung (1)
- Verbotenes Muster (1)
- Verbände (1)
- Verkehrslenkung (1)
- Verteilung von Inhalten (1)
- Vesicles (1)
- Video Quality Monitoring (1)
- Video Streaming (1)
- Videoübertragung (1)
- Virtualisierung (1)
- Virtuelles Netzwerk (1)
- Visibility (1)
- Visual Text Mining (1)
- Visual Tracking (1)
- Visualized Kathará (1)
- Voice-over-IP (VoIP) (1)
- Vorhersage (1)
- WH2 domain (1)
- WLAN (1)
- WNT (1)
- Warteschlangentheorie (1)
- Web service (1)
- WebGL (1)
- Webservice Composition (1)
- WhatsApp (1)
- Wheel (1)
- Winkel (1)
- Wire relaxation (1)
- Wireless LAN (1)
- Wireless Sensor/Actuator Systems (1)
- Wissensbanksystem (1)
- Wissensbasiertes System (1)
- Wissenschaftliche Beobachtung (1)
- Wissensendeckung (1)
- Worterweiterungen (1)
- Wrapper (1)
- Wrappers (1)
- XML model (1)
- XR-artificial intelligence combination (1)
- XR-artificial intelligence continuum (1)
- Yersinia enterocolitica (1)
- Yolk protein (1)
- YouTube (1)
- Zebrafish (1)
- Zeichnen von Graphen (1)
- Zeitdiskretes System (1)
- Zugangskontrolle (1)
- Zählprobleme (1)
- abgeschlossene Klassen (1)
- acrophobia (1)
- actin nucleation (1)
- adaptation (1)
- adaptation models (1)
- administrative boundary (1)
- admission control (1)
- adult learning (1)
- advertising effectiveness (1)
- aerodynamics (1)
- aerospace (1)
- agent-based models (1)
- agents (1)
- agile Prozesse (1)
- agile processes (1)
- aging (1)
- alignment (1)
- anamnesis tool (1)
- aneurysm (1)
- angular schematization (1)
- annotation (1)
- anomaly detection (1)
- anomaly prediction (1)
- ant-colony optimization (1)
- anthropomorphism (1)
- anxiety (1)
- apixaban (1)
- application design (1)
- approximation algorithms (1)
- arabidopsis thaliana (1)
- arabidpsis thaliana (1)
- architectural design (1)
- arithmetic calculations (1)
- artificial intelligence education (1)
- artificial intelligence literacy (1)
- augmentation (1)
- automatic Layout (1)
- automatisches Layout (1)
- autonomic orchestration (1)
- autonomous (1)
- autonomous UAV (1)
- autorotation (1)
- availability (1)
- avatar embodiment (1)
- avatars (1)
- background knowledge (1)
- baseline detection (1)
- behavior (1)
- behavior change (1)
- behavior perception (1)
- bibliometric analysis (1)
- binary decision diagram (1)
- binary tanglegram (1)
- biofuel (1)
- biohybrid systems (1)
- bioinformatics (1)
- biological development (1)
- biomanufacturing (1)
- biosignals (1)
- bit (1)
- boundary labeling (1)
- brain (1)
- building (1)
- caenorhabditis elegans (1)
- camera orientation (1)
- car-like robots (1)
- carbon (1)
- carboxylation (1)
- cardiac magnetic resonance (1)
- caspase-3 (1)
- cell membranes (1)
- cerebral ischemia (1)
- certifying algorithm (1)
- chain cover (1)
- channel management (1)
- cisplatin (1)
- classification (1)
- climate (1)
- cloud-native (1)
- co-authorships (1)
- co-inventorships (1)
- cognitive impairment (1)
- coherence (1)
- collaboration (1)
- collision (1)
- colony-stimulating factor (1)
- combination therapy (1)
- communication models (1)
- communication networks (1)
- community detection (1)
- comparative sequence analysis (1)
- competitive location (1)
- complex traits (1)
- complexity (1)
- compressed sensing (1)
- computational (1)
- computational complexity (1)
- computer performance evaluation (1)
- computergestützte Softwaretechnik (1)
- computers as social actors (1)
- condition prediction (1)
- congruence (1)
- connector (1)
- constrained forest (1)
- contact representation (1)
- container virtualization (1)
- content-based image retrieval (1)
- continuous-time SLAM (1)
- conversational agent (1)
- conversational agents (1)
- convex bipartite graph (1)
- corticotropin-releasing hormone (1)
- cost-sensitive learning (1)
- counting problems (1)
- crosstalk (1)
- crowdsourced QoE measurements (1)
- crowdsourced measurements (1)
- crowdsourced network measurements (1)
- cryo-EM (1)
- cryo-ET (1)
- crystal growth (1)
- crystallization (1)
- cultural and media studies (1)
- culturally aware (1)
- cuneiform (1)
- curves (1)
- cyber-physical systems (1)
- cybersickness (1)
- cytokine profiling (1)
- d3web.Train (1)
- dSTORM (1)
- data plane programming (1)
- data stream processing (1)
- data structure (1)
- data warehouse (1)
- dataplane programming (1)
- decision support system (1)
- decision-making (1)
- decoding error rate (1)
- deep metric learning (1)
- definite clause grammars (1)
- deformation-based method (1)
- delay QoS exponent (1)
- delay bound violation probability (1)
- delay constrained (1)
- dementia (1)
- descent (1)
- design cycle (1)
- detection time simulation (1)
- diagnostic accuracy (1)
- dial a ride (1)
- differentiation (1)
- digital twin (1)
- dimensions of proximity (1)
- direct oral anticoagulants (1)
- direct thrombin inhibitor (1)
- discrete-time analysis (1)
- disease (1)
- disjoint multi-paths (1)
- disruption project (1)
- distance-based classifier (1)
- distributed control (1)
- docker (1)
- drug (1)
- drug-minded protein (1)
- dynamic flow migration (1)
- dynamic programming (1)
- eHealth (1)
- eco-metabolomics (1)
- ecological momentary assessment (1)
- edge labeled graphs (1)
- effective Bandwidth (1)
- efficient algorithm (1)
- electroencephalography (1)
- electrolytes (1)
- electronic health records (1)
- elementary mode analysis (1)
- elementary modes (1)
- elevated plus-maze (1)
- embedding techniques (1)
- emergent time (1)
- emotions (1)
- empathy (1)
- emulation (1)
- encryption (1)
- endurance (1)
- energy efficiency (1)
- environmental sound (1)
- enzyme (1)
- event detection (1)
- event-related potentials-ERP (1)
- exercise intensity (1)
- experience (1)
- experimental evaluation (1)
- expertise framing (Min5-Max 8) (1)
- expression (1)
- expression signature (1)
- extended reality (1)
- extended reality (XR) (1)
- factor XA inhibitor (1)
- failure prediction (1)
- fast reroute (1)
- fault detection (1)
- feature matching (1)
- federated learning (1)
- few-shot learning (1)
- fixed-parameter tractability (1)
- flies (1)
- fluoroscopy (1)
- food quality (1)
- force dynamics (1)
- foreign language learning and teaching (1)
- formation driving (1)
- formation flight (1)
- fruit temperature (1)
- functional analysis (1)
- future Internet architecture (1)
- future energy grid exploration (1)
- game mechanics (1)
- gamification (1)
- gamma (1)
- generative systems (1)
- genes (1)
- genetic algorithm (1)
- genetic regulatory network (1)
- geospatial data (1)
- global IPX network (1)
- graph (1)
- graph algorithm (1)
- graph decomposition (1)
- graphs (1)
- green systems biology (1)
- group-based communication (1)
- handwriting (1)
- haptic data (1)
- hardness (1)
- hardware-in-the-loop simulation (1)
- hardware-in-the-loop streaming system (1)
- hepatotoxicity (1)
- heuristics (1)
- hierarchy (1)
- histidine kinase (1)
- historical images (1)
- hit ratio analysis and simulation (1)
- homology modeling (1)
- hospital data (1)
- human body weight (1)
- human computer interaction (HCI) (1)
- human-artificial intelligence interaction (1)
- human-artificial intelligence interface (1)
- human-centered design (1)
- human-centered, human-robot (1)
- humantechnology interaction (1)
- human–computer interaction (1)
- hybrid access (1)
- hypotonic (1)
- hypotonic solutions (1)
- illusion of self-motion (1)
- image classification (1)
- image processing (1)
- image schemas (1)
- imbalanced regression (1)
- immersive advertising (1)
- immersive classroom (1)
- immersive classroom management (1)
- immersive learning technologies (1)
- immunity (1)
- implicit association test (1)
- in situ analysis (1)
- independent crossing (1)
- induced matching (1)
- inflation (1)
- informal education (1)
- information extraction (1)
- information systems and information technology (1)
- inhibitor (1)
- intelligent transportation systems (1)
- intelligent vehicles (1)
- intelligent virtual agents (1)
- intelligent voice assistant (1)
- intelligente Applikationen (1)
- intention-behavior-gap (1)
- inter-coder reliability (1)
- interaction (1)
- interactive authoring system (1)
- interactive collation of textual variants (1)
- intercultural learning and teaching (1)
- interdisciplinary education (1)
- intermediate host (1)
- internal transcribed spacer 2 (1)
- internet protocol (1)
- internet traffic (1)
- interpolation (1)
- intervention design (1)
- intervention evaluation (1)
- intraoperative imaging (1)
- invasive vascular interventions (1)
- iowa gambling task (1)
- isotonic (1)
- key-insight extraction (1)
- kinect (1)
- labeling (1)
- land-cover area (1)
- landing (1)
- language-image pre-training (1)
- latency (1)
- lattices (1)
- layout recognition (1)
- learning environments (1)
- least cost (1)
- life-span regulation (1)
- lifetime spectroscopy (1)
- light-gated proteins (1)
- load balancing (1)
- local energy system (1)
- locomotion (1)
- logic programming (1)
- logistics (1)
- long-term analysis (1)
- lymphotoxicity (1)
- malaria (1)
- map projections (1)
- mapping (1)
- markers (1)
- mathematical model (1)
- measurement (1)
- media analysis (1)
- media equation (1)
- medical analytics (1)
- medical device regulation (1)
- medical device software (1)
- medical records (1)
- medieval manuscripts (1)
- meditation (1)
- membrane protein (1)
- membrane proteins (1)
- memory immune responses (1)
- metabolic flux (1)
- metabolism (1)
- metabolomics (1)
- metastasis (1)
- methylene blue (1)
- metro map (1)
- mice (1)
- microbes (1)
- mindfulness (1)
- misconceptions (1)
- mixed reality (1)
- mixed-cultural (1)
- mixed-cultural settings (1)
- mobile application (1)
- mobile instant messaging (1)
- mobile messaging application (1)
- mobile robots (1)
- mobile streaming (1)
- model following (1)
- model output statistics (1)
- model predictive control (1)
- model-based diagnosis (1)
- modeling techniques (1)
- modules (1)
- molecular systematics (1)
- monotone drawing (1)
- morphing (1)
- mouse (1)
- multi-vehicle formations (1)
- multi-vehicle rendezvous (1)
- multimodal fusion (1)
- multimodal interface (1)
- multimodal learning (1)
- multipath communication (1)
- multipath packet scheduling (1)
- multiple myeloma (1)
- multirotors (1)
- multiscale encoder (1)
- mutation (1)
- mycoplasma (1)
- nano-satellite (1)
- nanocellulose (1)
- natural interfaces (1)
- natural language processing (1)
- natural language processing · · · (1)
- natural user interfaces (1)
- network (1)
- network design (1)
- network planning (1)
- network softwarization (1)
- network upgrade (1)
- network virtualization (1)
- networked robotics (1)
- networking (1)
- neume notation (1)
- neural architecture (1)
- noise measurement (1)
- non-native accent (1)
- non-terrestrial networks (1)
- nonholonomic vehicles (1)
- nonhuman-primates (1)
- nonverbal behavior (1)
- object detection (1)
- octree (1)
- omics (1)
- optical music recognition (1)
- optimization (1)
- orchestration (1)
- organogenesis (1)
- origin (1)
- overprovisioning (1)
- oxidative stress (1)
- packet reception method (1)
- painful (1)
- pangolin (1)
- particle picking (1)
- partitions (1)
- passage of time (1)
- passive haptic feedback (1)
- path computation (1)
- pathway (1)
- performance (1)
- performance analysis (1)
- performance evaluation (1)
- performance liquid chromatography (1)
- performance monitoring (1)
- performance prediction (1)
- permeability (1)
- pestis infection (1)
- phase space (1)
- phase transition (1)
- photorespiration (1)
- phylogenetic tree (1)
- phylogeny (1)
- place-illusion (1)
- plain orchestrating service (1)
- plausibility (1)
- plausibility-illusion (1)
- pneumoniae (1)
- pneumonic plague (1)
- point cloud (1)
- point cloud compression (1)
- point-to-plane measure (1)
- point-to-point measure (1)
- pollution (1)
- pos (1)
- posets (1)
- positioning (1)
- precision horticulture (1)
- precision training (1)
- presence (1)
- private chat groups (1)
- procedural content generation (1)
- procedural fusion methods (1)
- processing pipeline (1)
- progeria (1)
- promoter (1)
- prompt engineering (1)
- protein (1)
- protein chip (1)
- protein-interaction networks (1)
- pseudomas-syringae (1)
- psychomotor training (1)
- psychophyisology (1)
- public speaking (1)
- pulse simulation (1)
- quadcopter (1)
- quadcopters (1)
- quality assurance (1)
- quality evaluation (1)
- quality of experience (1)
- quality of experience prediction (1)
- quantification (1)
- qubit (1)
- radio resource management (1)
- radiology (1)
- ransomware (1)
- real world evidence (1)
- real-world application (1)
- realism (1)
- receding horizon control (1)
- receptor (1)
- recombinant protein rVE (1)
- recombination (1)
- recommender system (1)
- reconfiguration (1)
- reload cost (1)
- remote control (1)
- research methods (1)
- resilience (1)
- response regulator (1)
- ribosomal RNA (1)
- rich vehicle routing problem (1)
- richtersius coronifer (1)
- right angle crossing (1)
- robotics (1)
- robustness (1)
- rotorcraft (1)
- rotors (1)
- routing (1)
- sample weighting (1)
- satisfiability problems (1)
- scalability evaluation (1)
- scalable quadcopter (1)
- scheduling (1)
- science, technology and society (1)
- secondary structure (1)
- secure group communication (1)
- self-adaptive (1)
- self-adaptive systems (1)
- self-assembly (1)
- self-aware computing systems (1)
- self-managing systems (1)
- semantic fusion (1)
- semantic understanding (1)
- semantic web (1)
- semantical aesthetic (1)
- semantische Ästhetik (1)
- sensitivity analysis (1)
- sensor devices (1)
- sensor fusion (1)
- sensor networks (1)
- sentinel (1)
- sequence alignment (1)
- serious games (1)
- serum (1)
- service based software architecture (1)
- service brokerage (1)
- service-curve estimation (1)
- sesnsors (1)
- set (1)
- shootin-1 (1)
- short block-length (1)
- shortest path routing (1)
- signal processing (1)
- signaling traffic (1)
- simulation system (1)
- simultaneous embedding (1)
- single-electron transistors (1)
- sketching (1)
- smart meter data utilization (1)
- smooth orthogonal drawing (1)
- snow shoveling (1)
- social VR (1)
- social interaction (1)
- social relationship (1)
- social robot (1)
- social robotics (1)
- social role (1)
- socially interactive agents (1)
- software defined network (1)
- spanning tree (1)
- spire (1)
- stability (1)
- stable state (1)
- standardization (1)
- state management (1)
- statistical validity (1)
- statistics and numerical data (1)
- stereotypes (1)
- stream processing (1)
- stroke (1)
- structural complexity (1)
- student simulation (1)
- stylus (1)
- sun exposure (1)
- sunburn (1)
- superoxide-dismutase (1)
- supervised learning (1)
- surface model (1)
- survey (1)
- survival (1)
- sustainability (1)
- switching navigation (1)
- synthetic biology (1)
- synthetic pathways (1)
- system architecture design (1)
- systematic literature review (1)
- systematic review (1)
- table extraction (1)
- table understanding (1)
- taxonomy (1)
- teacher education (1)
- technology-supported learning (1)
- telematics (1)
- temperature (1)
- text categorization (1)
- text line detection (1)
- text supervision (1)
- theory (1)
- therapeutic application (1)
- thermal camera (1)
- thermal point cloud (1)
- time calibration (1)
- time perception (1)
- time series (1)
- timestamping method (1)
- tolerance (1)
- tomography (1)
- tonicity (1)
- tools (1)
- topology (1)
- training systems (1)
- trait anxiety (1)
- trajectory planning (1)
- transcription (1)
- transformations (1)
- transformer (1)
- translational neuroscience (1)
- transmission (1)
- transport microenvironments (1)
- transport protocols (1)
- transportation (1)
- tree (1)
- trust (1)
- trustworthiness (1)
- unmanned aerial vehicle (1)
- unmanned aerial vehicles (1)
- usability evaluation (1)
- use cases (1)
- user experience (1)
- user interaction (1)
- user interfaces (1)
- user study (1)
- user-generated content (1)
- v (1)
- vaccine (1)
- validation (1)
- vection (1)
- vehicle dynamics (1)
- vehicular navigation (1)
- verbal behaviour (1)
- vernetzte Roboter (1)
- virtual agent interaction (1)
- virtual audience (1)
- virtual humans (1)
- virtual queue (1)
- virtual reality training (1)
- virtual stimuli (1)
- virtual tunnel (1)
- virtual-reality-continuum (1)
- visual analytics (1)
- visual proteomics (1)
- vitellogenin (1)
- voice assistant (1)
- voice-based artificial intelligence (1)
- vom Nutzer erfahrene Dienstgüte QoE (1)
- voting location (1)
- water stress (1)
- waypoint parameter (1)
- wearable (1)
- wheel (1)
- word clouds (1)
- word extensions (1)
- zooming (1)
- zukünftige Kommunikationsnetze (1)
- zukünftiges Internet (1)
- Ähnlichkeitsmaß (1)
- Überlappung (1)
Institute
- Institut für Informatik (183)
- Theodor-Boveri-Institut für Biowissenschaften (29)
- Institut Mensch - Computer - Medien (17)
- Institut für deutsche Philologie (17)
- Institut für Klinische Epidemiologie und Biometrie (7)
- Center for Computational and Theoretical Biology (4)
- Graduate School of Science and Technology (3)
- Medizinische Klinik und Poliklinik II (3)
- Institut für Funktionsmaterialien und Biofabrikation (2)
- Institut für Geographie und Geologie (2)
Schriftenreihe
Sonstige beteiligte Institutionen
- Cologne Game Lab (2)
- Birmingham City University (1)
- DATE Lab, KITE Research Insititute, University Health Network, Toronto, Canada (1)
- EMBL Heidelberg (1)
- INAF Padova, Italy (1)
- Jacobs University Bremen, Germany (1)
- Open University of the Netherlands (1)
- Servicezentrum Medizin-Informatik (Universitätsklinikum) (1)
- Social and Technological Systems (SaTS) lab, School of Art, Media, Performance and Design, York University, Toronto, Canada (1)
- TH Köln (1)
The DAEDALUS mission concept aims at exploring and characterising the entrance and initial part of Lunar lava tubes within a compact, tightly integrated spherical robotic device, with a complementary payload set and autonomous capabilities.
The mission concept addresses specifically the identification and characterisation of potential resources for future ESA exploration, the local environment of the subsurface and its geologic and compositional structure.
A sphere is ideally suited to protect sensors and scientific equipment in rough, uneven environments.
It will house laser scanners, cameras and ancillary payloads.
The sphere will be lowered into the skylight and will explore the entrance shaft, associated caverns and conduits. Lidar (light detection and ranging) systems produce 3D models with high spatial accuracy independent of lighting conditions and visible features.
Hence this will be the primary exploration toolset within the sphere.
The additional payload that can be accommodated in the robotic sphere consists of camera systems with panoramic lenses and scanners such as multi-wavelength or single-photon scanners.
A moving mass will trigger movements.
The tether for lowering the sphere will be used for data communication and powering the equipment during the descending phase.
Furthermore, the connector tether-sphere will host a WIFI access point, such that data of the conduit can be transferred to the surface relay station. During the exploration phase, the robot will be disconnected from the cable, and will use wireless communication.
Emergency autonomy software will ensure that in case of loss of communication, the robot will continue the nominal mission.
This work proposes a novel approach to disperse dense transmission intervals and reduce bursty traffic patterns without the need for centralized control. Furthermore, by keeping the mechanism as close to the Long Range Wide Area Network (LoRaWAN) standard as possible the suggested mechanism can be deployed within existing networks and can even be co-deployed with other devices.
Lifetime techniques are applied to diverse fields of study including materials sciences, semiconductor physics, biology, molecular biophysics and photochemistry.
Here we present DDRS4PALS, a software for the acquisition and simulation of lifetime spectra using the DRS4 evaluation board (Paul Scherrer Institute, Switzerland) for time resolved measurements and digitization of detector output pulses. Artifact afflicted pulses can be corrected or rejected prior to the lifetime calculation to provide the generation of high-quality lifetime spectra, which are crucial for a profound analysis, i.e. the decomposition of the true information. Moreover, the pulses can be streamed on an (external) hard drive during the measurement and subsequently downloaded in the offline mode without being connected to the hardware. This allows the generation of various lifetime spectra at different configurations from one single measurement and, hence, a meaningful comparison in terms of analyzability and quality. Parallel processing and an integrated JavaScript based language provide convenient options to accelerate and automate time consuming processes such as lifetime spectra simulations.
An innovative framework has been developed for teamwork of two quadcopter formations, each having its specified formation geometry, assigned task, and matching control scheme. Position control for quadcopters in one of the formations has been implemented through a Linear Quadratic Regulator Proportional Integral (LQR PI) control scheme based on explicit model following scheme. Quadcopters in the other formation are controlled through LQR PI servomechanism control scheme. These two control schemes are compared in terms of their performance and control effort. Both formations are commanded by respective ground stations through virtual leaders. Quadcopters in formations are able to track desired trajectories as well as hovering at desired points for selected time duration. In case of communication loss between ground station and any of the quadcopters, the neighboring quadcopter provides the command data, received from the ground station, to the affected unit. Proposed control schemes have been validated through extensive simulations using MATLAB®/Simulink® that provided favorable results.
In recent history, normalized digital surface models (nDSMs) have been constantly gaining importance as a means to solve large-scale geographic problems. High-resolution surface models are precious, as they can provide detailed information for a specific area. However, measurements with a high resolution are time consuming and costly. Only a few approaches exist to create high-resolution nDSMs for extensive areas. This article explores approaches to extract high-resolution nDSMs from low-resolution Sentinel-2 data, allowing us to derive large-scale models. We thereby utilize the advantages of Sentinel 2 being open access, having global coverage, and providing steady updates through a high repetition rate. Several deep learning models are trained to overcome the gap in producing high-resolution surface maps from low-resolution input data. With U-Net as a base architecture, we extend the capabilities of our model by integrating tailored multiscale encoders with differently sized kernels in the convolution as well as conformed self-attention inside the skip connection gates. Using pixelwise regression, our U-Net base models can achieve a mean height error of approximately 2 m. Moreover, through our enhancements to the model architecture, we reduce the model error by more than 7%.
The landscape of today’s programming languages is manifold. With the diversity of applications, the difficulty of adequately addressing and specifying the used programs increases. This often leads to newly designed and implemented domain-specific languages. They enable domain experts to express knowledge in their preferred format, resulting in more readable and concise programs. Due to its flexible and declarative syntax without reserved keywords, the logic programming language Prolog is particularly suitable for defining and embedding domain-specific languages.
This thesis addresses the questions and challenges that arise when integrating domain-specific languages into Prolog. We compare the two approaches to define them either externally or internally, and provide assisting tools for each. The grammar of a formal language is usually defined in the extended Backus–Naur form. In this work, we handle this formalism as a domain-specific language in Prolog, and define term expansions that allow to translate it into equivalent definite clause grammars. We present the package library(dcg4pt) for SWI-Prolog, which enriches them by an additional argument to automatically process the term’s corresponding parse tree. To simplify the work with definite clause grammars, we visualise their application by a web-based tracer.
The external integration of domain-specific languages requires the programmer to keep the grammar, parser, and interpreter in sync. In many cases, domain-specific languages can instead be directly embedded into Prolog by providing appropriate operator definitions. In addition, we propose syntactic extensions for Prolog to expand its expressiveness, for instance to state logic formulas with their connectives verbatim. This allows to use all tools that were originally written for Prolog, for instance code linters and editors with syntax highlighting. We present the package library(plammar), a standard-compliant parser for Prolog source code, written in Prolog. It is able to automatically infer from example sentences the required operator definitions with their classes and precedences as well as the required Prolog language extensions. As a result, we can automatically answer the question: Is it possible to model these example sentences as valid Prolog clauses, and how?
We discuss and apply the two approaches to internal and external integrations for several domain-specific languages, namely the extended Backus–Naur form, GraphQL, XPath, and a controlled natural language to represent expert rules in if-then form. The created toolchain with library(dcg4pt) and library(plammar) yields new application opportunities for static Prolog source code analysis, which we also present.
To deliver the best user experience (UX), the human-centered design cycle (HCDC) serves as a well-established guideline to application developers. However, it does not yet cover network-specific requirements, which become increasingly crucial, as most applications deliver experience over the Internet. The missing network-centric view is provided by Quality of Experience (QoE), which could team up with UX towards an improved overall experience. By considering QoE aspects during the development process, it can be achieved that applications become network-aware by design. In this paper, the Quality of Experience Centered Design Cycle (QoE-CDC) is proposed, which provides guidelines on how to design applications with respect to network-specific requirements and QoE. Its practical value is showcased for popular application types and validated by outlining the design of a new smartphone application. We show that combining HCDC and QoE-CDC will result in an application design, which reaches a high UX and avoids QoE degradation.
In many real world settings, imbalanced data impedes model performance of learning algorithms, like neural networks, mostly for rare cases. This is especially problematic for tasks focusing on these rare occurrences. For example, when estimating precipitation, extreme rainfall events are scarce but important considering their potential consequences. While there are numerous well studied solutions for classification settings, most of them cannot be applied to regression easily. Of the few solutions for regression tasks, barely any have explored cost-sensitive learning which is known to have advantages compared to sampling-based methods in classification tasks. In this work, we propose a sample weighting approach for imbalanced regression datasets called DenseWeight and a cost-sensitive learning approach for neural network regression with imbalanced data called DenseLoss based on our weighting scheme. DenseWeight weights data points according to their target value rarities through kernel density estimation (KDE). DenseLoss adjusts each data point’s influence on the loss according to DenseWeight, giving rare data points more influence on model training compared to common data points. We show on multiple differently distributed datasets that DenseLoss significantly improves model performance for rare data points through its density-based weighting scheme. Additionally, we compare DenseLoss to the state-of-the-art method SMOGN, finding that our method mostly yields better performance. Our approach provides more control over model training as it enables us to actively decide on the trade-off between focusing on common or rare cases through a single hyperparameter, allowing the training of better models for rare data points.
Today’s Internet architecture was not designed from scratch but was driven by new services that emerged during its development. Hence, it is often described as patchwork where additional patches are applied in case new services require modifications to the existing architecture. This process however is rather slow and hinders the development of innovative network services with certain architecture or network requirements. Currently discussed technologies like Software-Defined Networking (SDN) or Network Virtualization (NV) are seen as key enabling technologies to overcome this rigid best effort legacy of the Internet. Both technologies offer the possibility to create virtual networks that accommodate the specific needs of certain services. These logical networks are operated on top of a physical substrate and facilitate flexible network resource allocation as physical resources can be added and removed depending on the current network and load situation. In addition, the clear separation and isolation of networks foster the development of application-aware networks that fulfill the special requirements of emerging applications. A prominent use case that benefits from these extended capabilities of the network is denoted with service component mobility. Services hosted on Virtual Machines (VMs) follow their consuming mobile endpoints, so that access latency as well as consumed network resources are reduced. Especially for applications like video streaming, which consume a large fraction of the available resources, is this an important means to relieve the resource constraints and eventually provide better service quality. Service and endpoint mobility both allow an adaptation of the used paths between an offered service, i.e., video streaming and the consuming users in case the service quality drops due to network problems. To make evidence-based adaptations in case of quality drops, a scalable monitoring component is required that is able to monitor the service quality for video streaming applications with reliable accuracy. This monograph details challenges that arise when deploying a certain service, i.e., video streaming, in a future virtualized network architecture and discusses possible solutions. In particular, this work evaluates the performance of mechanisms enabling service mobility and presents an optimized architecture for service mobility. Concerning endpoint mobility, improvements are developed that reduce the latency between endpoints and consumed services and ensure connectivity regardless of the used mobile access network. In the last part, a network-based video quality monitoring solution is developed and its accuracy is evaluated.
Learning a book in general involves reading it, underlining important words, adding comments, summarizing some passages, and marking up some text or concepts. Once deeper understanding is achieved, one would like to organize and manage her/his knowledge in such a way that, it could be easily remembered and efficiently transmitted to others. This paper discusses about modeling religious texts using semantic XML markup based on frame-based knowledge representation, with the purpose of assisting understanding, retention, and sharing of knowledge they contain. In this study, books organized in terms of chapters made up of verses are considered as the source of knowledge to model. Some metadata representing the multiple perspectives of knowledge modeling are assigned to each chapter and verse. Chapters and verses with their metadata form a meta-model, which is represented using frames, and published on a web mashup. An XML-based annotation and visualization system equipped with user interfaces for creating static and dynamic metadata, annotating chapters’ contents according to user selected semantics, and templates for publishing generated knowledge on the Internet, has been developed. The system has been applied to the Quran, and the result obtained shows that multiple perspectives of information modeling can be successfully applied to religious texts, in order to support analysis, understanding, and retention of the texts.
Design and Implementation of Architectures for Interactive Textual Documents Collation Systems
(2011)
One of the main purposes of textual documents collation is to identify a base text or closest witness to the base text, by analyzing and interpreting differences also known as types of changes that might exist between those documents. Based on this fact, it is reasonable to argue that, explicit identification of types of changes such as deletions, additions, transpositions, and mutations should be part of the collation process. The identification could be carried out by an interpretation module after alignment has taken place. Unfortunately existing collation software such as CollateX1 and Juxta2’s collation engine do not have interpretation modules. In fact they implement the Gothenburg model [1] for collation process which does not include an interpretation unit. Currently both CollateX and Juxta’s collation engine do not distinguish in their critical apparatus between the types of changes, and do not offer statistics about those changes. This paper presents a model for both integrated and distributed collation processes that improves the Gothenburg model. The model introduces an interpretation component for computing and distinguishing between the types of changes that documents could have undergone. Moreover two architectures implementing the model in order to solve the problem of interactive collation are discussed as well. Each architecture uses CollateX library, and provides on the one hand preprocessing functions for transforming input documents into CollateX input format, and on the other hand a post-processing module for enabling interactive collation. Finally simple algorithms for distinguishing between types of changes, and linking collated source documents with the collation results are also introduced.
The concept of digital literacy has been introduced as a new cultural technique, which is regarded as essential for successful participation in a (future) digitized world. Regarding the increasing importance of AI, literacy concepts need to be extended to account for AI-related specifics. The easy handling of the systems results in increased usage, contrasting limited conceptualizations (e.g., imagination of future importance) and competencies (e.g., knowledge about functional principles). In reference to voice-based conversational agents as a concrete application of AI, the present paper aims for the development of a measurement to assess the conceptualizations and competencies about conversational agents. In a first step, a theoretical framework of “AI literacy” is transferred to the context of conversational agent literacy. Second, the “conversational agent literacy scale” (short CALS) is developed, constituting the first attempt to measure interindividual differences in the “(il) literate” usage of conversational agents. 29 items were derived, of which 170 participants answered. An explanatory factor analysis identified five factors leading to five subscales to assess CAL: storage and transfer of the smart speaker’s data input; smart speaker’s functional principles; smart speaker’s intelligent functions, learning abilities; smart speaker’s reach and potential; smart speaker’s technological (surrounding) infrastructure. Preliminary insights into construct validity and reliability of CALS showed satisfying results. Third, using the newly developed instrument, a student sample’s CAL was assessed, revealing intermediated values. Remarkably, owning a smart speaker did not lead to higher CAL scores, confirming our basic assumption that usage of systems does not guarantee enlightened conceptualizations and competencies. In sum, the paper contributes to the first insights into the operationalization and understanding of CAL as a specific subdomain of AI-related competencies.
Two-component systems (TCS) are short signalling pathways generally occurring in prokaryotes. They frequently regulate prokaryotic stimulus responses and thus are also of interest for engineering in biotechnology and synthetic biology. The aim of this study is to better understand and describe rewiring of TCS while investigating different evolutionary scenarios. Based on large-scale screens of TCS in different organisms, this study gives detailed data, concrete alignments, and structure analysis on three general modification scenarios, where TCS were rewired for new responses and functions: (i) exchanges in the sequence within single TCS domains, (ii) exchange of whole TCS domains; (iii) addition of new components modulating TCS function. As a result, the replacement of stimulus and promotor cassettes to rewire TCS is well defined exploiting the alignments given here. The diverged TCS examples are non-trivial and the design is challenging. Designed connector proteins may also be useful to modify TCS in selected cases.
DLTPulseGenerator: a library for the simulation of lifetime spectra based on detector-output pulses
(2018)
The quantitative analysis of lifetime spectra relevant in both life and materials sciences presents one of the ill-posed inverse problems and, hence, leads to most stringent requirements on the hardware specifications and the analysis algorithms. Here we present DLTPulseGenerator, a library written in native C++ 11, which provides a simulation of lifetime spectra according to the measurement setup. The simulation is based on pairs of non-TTL detector output-pulses. Those pulses require the Constant Fraction Principle (CFD) for the determination of the exact timing signal and, thus, the calculation of the time difference i.e. the lifetime. To verify the functionality, simulation results were compared to experimentally obtained data using Positron Annihilation Lifetime Spectroscopy (PALS) on pure tin.
3D point clouds are a de facto standard for 3D documentation and modelling. The advances in laser scanning technology broadens the usability and access to 3D measurement systems. 3D point clouds are used in many disciplines such as robotics, 3D modelling, archeology and surveying. Scanners are able to acquire up to a million of points per second to represent the environment with a dense point cloud. This represents the captured environment with a very high degree of detail. The combination of laser scanning technology with photography adds color information to the point clouds. Thus the environment is represented more realistically. Full 3D models of environments, without any occlusion, require multiple scans. Merging point clouds is a challenging process. This thesis presents methods for point cloud registration based on the panorama images generated from the scans. Image representation of point clouds introduces 2D image processing methods to 3D point clouds. Several projection methods for the generation of panorama maps of point clouds are presented in this thesis. Additionally, methods for point cloud reduction and compression based on the panorama maps are proposed. Due to the large amounts of data generated from the 3D measurement systems these methods are necessary to improve the point cloud processing, transmission and archiving. This thesis introduces point cloud processing methods as a novel framework for the digitisation of archeological excavations. The framework replaces the conventional documentation methods for excavation sites. It employs point clouds for the generation of the digital documentation of an excavation with the help of an archeologist on-site. The 3D point cloud is used not only for data representation but also for analysis and knowledge generation. Finally, this thesis presents an autonomous indoor mobile mapping system. The mapping system focuses on the sensor placement planning method. Capturing a complete environment requires several scans. The sensor placement planning method solves for the minimum required scans to digitise large environments. Combining this method with a navigation system on a mobile robot platform enables it to acquire data fully autonomously. This thesis introduces a novel hole detection method for point clouds to detect obscured parts of a captured environment. The sensor placement planning method selects the next scan position with the most coverage of the obscured environment. This reduces the required number of scans. The navigation system on the robot platform consist of path planning, path following and obstacle avoidance. This guarantees the safe navigation of the mobile robot platform between the scan positions. The sensor placement planning method is designed as a stand alone process that could be used with a mobile robot platform for autonomous mapping of an environment or as an assistant tool for the surveyor on scanning projects.
Webservices composition is traditionally carried out using composition technologies such as Business Process Execution Language (BPEL) [1] and Web Service Choreography Interface (WSCI) [2]. The composition technology involves the process of web service discovery, invocation, and composition. However these technologies are not easy and flexible enough because they are mainly developer-centric. Moreover majority of websites have not yet embarked into the world of web service, although they have very important and useful information to offer. Is it because they have not understood the usefulness of web services or is it because of the costs? Whatever might be the answers to these questions, time and money are definitely required in order to create and offer web services. To avoid these expenditures, wrappers [7] to automatically generate webservices from websites would be a cheaper and easier solution. Mashups offer a different way of doing webservices composition. In web environment a Mashup is a web application that brings together data from several sources using webservices, APIs, wrappers and so on, in order to create entirely a new application that was not provided before. This paper presents first an overview of Mashups and the process of web service invocation and composition based on Mashup, then describes an example of a web-based simulator for navigation system in Germany.
A binary tanglegram is a drawing of a pair of rooted binary trees whose leaf sets are in one-to-one correspondence; matching leaves are connected by inter-tree edges. For applications, for example, in phylogenetics, it is essential that both trees are drawn without edge crossings and that the inter-tree edges have as few crossings as possible. It is known that finding a tanglegram with the minimum number of crossings is NP-hard and that the problem is fixed-parameter tractable with respect to that number.
We prove that under the Unique Games Conjecture there is no constant-factor approximation for binary trees. We show that the problem is NP-hard even if both trees are complete binary trees. For this case we give an O(n 3)-time 2-approximation and a new, simple fixed-parameter algorithm. We show that the maximization version of the dual problem for binary trees can be reduced to a version of MaxCut for which the algorithm of Goemans and Williamson yields a 0.878-approximation.
Dynamic point cloud compression based on projections, surface reconstruction and video compression
(2021)
In this paper we will present a new dynamic point cloud compression based on different projection types and bit depth, combined with the surface reconstruction algorithm and video compression for obtained geometry and texture maps. Texture maps have been compressed after creating Voronoi diagrams. Used video compression is specific for geometry (FFV1) and texture (H.265/HEVC). Decompressed point clouds are reconstructed using a Poisson surface reconstruction algorithm. Comparison with the original point clouds was performed using point-to-point and point-to-plane measures. Comprehensive experiments show better performance for some projection maps: cylindrical, Miller and Mercator projections.
Experimental high-throughput analysis of molecular networks is a central approach to characterize the adaptation of plant metabolism to the environment. However, recent studies have demonstrated that it is hardly possible to predict in situ metabolic phenotypes from experiments under controlled conditions, such as growth chambers or greenhouses. This is particularly due to the high molecular variance of in situ samples induced by environmental fluctuations. An approach of functional metabolome interpretation of field samples would be desirable in order to be able to identify and trace back the impact of environmental changes on plant metabolism. To test the applicability of metabolomics studies for a characterization of plant populations in the field, we have identified and analyzed in situ samples of nearby grown natural populations of Arabidopsis thaliana in Austria. A. thaliana is the primary molecular biological model system in plant biology with one of the best functionally annotated genomes representing a reference system for all other plant genome projects. The genomes of these novel natural populations were sequenced and phylogenetically compared to a comprehensive genome database of A. thaliana ecotypes. Experimental results on primary and secondary metabolite profiling and genotypic variation were functionally integrated by a data mining strategy, which combines statistical output of metabolomics data with genome-derived biochemical pathway reconstruction and metabolic modeling. Correlations of biochemical model predictions and population-specific genetic variation indicated varying strategies of metabolic regulation on a population level which enabled the direct comparison, differentiation, and prediction of metabolic adaptation of the same species to different habitats. These differences were most pronounced at organic and amino acid metabolism as well as at the interface of primary and secondary metabolism and allowed for the direct classification of population-specific metabolic phenotypes within geographically contiguous sampling sites.
Shannon channel capacity estimation, based on large packet length is used in traditional Radio Resource Management (RRM) optimization. This is good for the normal transmission of data in a wired or wireless system. For industrial automation and control, rather short packages are used due to the short-latency requirements. Using Shannon’s formula leads in this case to inaccurate RRM solutions, thus another formula should be used to optimize radio resources in short block-length packet transmission, which is the basic of Ultra-Reliable Low-Latency Communications (URLLCs). The stringent requirement of delay Quality of Service (QoS) for URLLCs requires a link-level channel model rather than a physical level channel model. After finding the basic and accurate formula of the achievable rate of short block-length packet transmission, the RRM optimization problem can be accurately formulated and solved under the new constraints of URLLCs. In this short paper, the current mathematical models, which are used in formulating the effective transmission rate of URLLCs, will be briefly explained. Then, using this rate in RRM for URLLC will be discussed.