004 Datenverarbeitung; Informatik
Refine
Has Fulltext
- yes (203)
Year of publication
Document Type
- Journal article (78)
- Doctoral Thesis (75)
- Working Paper (37)
- Conference Proceeding (8)
- Master Thesis (3)
- Report (2)
Language
- English (183)
- German (19)
- Multiple languages (1)
Keywords
- Datennetz (14)
- Leistungsbewertung (13)
- virtual reality (12)
- Robotik (8)
- Mobiler Roboter (7)
- Autonomer Roboter (6)
- Komplexitätstheorie (5)
- Optimierung (5)
- P4 (5)
- Simulation (5)
- Theoretische Informatik (5)
- artificial intelligence (5)
- machine learning (5)
- Drahtloses Sensorsystem (4)
- Modellierung (4)
- Netzwerk (4)
- Optimization (4)
- Overlay-Netz (4)
- Routing (4)
- SDN (4)
- Verteiltes System (4)
- Algorithmus (3)
- Approximationsalgorithmus (3)
- Computer Vision (3)
- Computersimulation (3)
- Dienstgüte (3)
- Graph (3)
- Graphenzeichnen (3)
- Komplexität (3)
- Künstliche Intelligenz (3)
- Lokalisation (3)
- Mensch-Maschine-Schnittstelle (3)
- Netzwerkmanagement (3)
- Peer-to-Peer-Netz (3)
- Performance Evaluation (3)
- QoE (3)
- Quadrocopter (3)
- Quality of Experience (3)
- Rechnernetz (3)
- Ressourcenmanagement (3)
- Robotics (3)
- approximation algorithm (3)
- augmented reality (3)
- graph drawing (3)
- immersion (3)
- simulation (3)
- 5G (2)
- Algorithmische Geometrie (2)
- Ausfallsicheres System (2)
- Ausfallsicherheit (2)
- Benutzerschnittstelle (2)
- Crowdsourcing (2)
- Data Mining (2)
- Deep learning (2)
- Dot-Depth Problem (2)
- Drahtloses lokales Netz (2)
- Effizienter Algorithmus (2)
- Entscheidbarkeit (2)
- Entscheidungsfindung (2)
- Fernwartung (2)
- Future Internet (2)
- Human-Robot-Interaction (2)
- IEEE 802.11 (2)
- Internet of Things (2)
- IoT (2)
- Kleinsatellit (2)
- Kreuzung (2)
- Localization (2)
- MP-DCCP (2)
- Machine Learning (2)
- Maschinelles Lernen (2)
- Maschinelles Sehen (2)
- Mehragentensystem (2)
- Mensch-Maschine-System (2)
- Mensch-Roboter-Interaktion (2)
- Mixed Reality (2)
- Mustererkennung (2)
- NP-hardness (2)
- PROLOG <Programmiersprache> (2)
- Punktwolke (2)
- Quadrotor (2)
- Resilience (2)
- Resource Management (2)
- Satellit (2)
- Situation Awareness (2)
- Software Defined Networking (2)
- Software Engineering (2)
- Teleoperation (2)
- Theoretical Computer Science (2)
- User Interface (2)
- Verbotsmuster (2)
- XR (2)
- automation (2)
- connected mobility applications (2)
- crossing minimization (2)
- decidability (2)
- deep learning (2)
- dot-depth problem (2)
- education (2)
- educational tool (2)
- endliche Automaten (2)
- endoscopy (2)
- exposure (2)
- finite automata (2)
- fog computing (2)
- forbidden patterns (2)
- fully convolutional neural networks (2)
- games (2)
- gastroenterology (2)
- historical document analysis (2)
- human-computer interaction (2)
- knowledge representation (2)
- measurements (2)
- mobile networks (2)
- mobile robots (2)
- multipath (2)
- multipath scheduling (2)
- navigation (2)
- network calculus (2)
- neural networks (2)
- ontology (2)
- prediction (2)
- regular languages (2)
- reguläre Sprachen (2)
- satellite communication (2)
- scheduling (2)
- self-aware computing (2)
- virtual environments (2)
- 3D Laser Scanning (1)
- 3D Pointcloud (1)
- 3D Punktwolke (1)
- 3D Reconstruction (1)
- 3D Sensor (1)
- 3D Vision (1)
- 3D point cloud (1)
- 3D thermal mapping (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)
- ATSSSS (1)
- AVA (1)
- Abhängigskeitsgraph (1)
- Ablaufplanung (1)
- Add-on-Miss (1)
- Admission Control (1)
- Agent <Informatik> (1)
- Agent <Künstliche Intelligenz> (1)
- Agent-based Simulation (1)
- Agentbased System (1)
- Agenten-basierte Simulation (1)
- Angewandte Informatik (1)
- Annotation (1)
- Anwendung (1)
- Anwendungsfall (1)
- Approximation (1)
- Arterie (1)
- Artery (1)
- Aufsatzsammlung (1)
- Aufwandsanalyse (1)
- Automat <Automatentheorie> (1)
- Automata Theory (1)
- Automatentheorie (1)
- Automatisierte Prüfungskorrektur (1)
- Autonomer Agent (1)
- Autonomie (1)
- Autonomous Robot (1)
- Autonomous UAV (1)
- Autonomous multi-vehicle systems (1)
- Autorotation (1)
- Backbone-Netz (1)
- Background Knowledge (1)
- Balloon (1)
- Benutzerinteraktion (1)
- Berechenbarkeit (1)
- Berechnungskomplexität (1)
- Bernoulli stochastics (1)
- Bernoulli-Raum (1)
- Bernoullische Stochastik (1)
- Bernoullispace (1)
- Betriebssystem (1)
- Bewegungsablauf (1)
- Bewegungskompensation (1)
- Bewegungskoordination (1)
- Bewegungsplanung (1)
- Bildverarbeitung (1)
- Bit Parallelität (1)
- BitTorrent (1)
- Bodenstation (1)
- Boolean Grammar (1)
- Boolean equivalence (1)
- Boolean functions (1)
- Boolean hierarchy (1)
- Boolean isomorphism (1)
- Boolesche Funktionen (1)
- Boolesche Grammatik (1)
- Boolesche Hierarchie (1)
- Brüder Grimm Privatbibliothek (1)
- Business Intelligence (1)
- CASE (1)
- CLIP (1)
- Calibration (1)
- Call Graph (1)
- Chord (1)
- Clones (1)
- Cloud Gaming (1)
- Communication Networks (1)
- Complexity Theory (1)
- Compression (1)
- Computational Geometry (1)
- Computational complexity (1)
- Computerspiel (1)
- Computerunterstütztes Lernen (1)
- Containerization (1)
- Content Distribution (1)
- Convolutional Neural Network (1)
- Cost Analysis (1)
- Crowdsensing (1)
- CubeSat (1)
- DHT (1)
- DNA storage (1)
- Daedalus-Projekt (1)
- Databases (1)
- Datenbanken (1)
- Datenbasis (1)
- Datenkommunikationsnetz (1)
- Deep Georeferencing (1)
- Deep Learning (1)
- Dependency Graph (1)
- Design (1)
- Design and Development (1)
- Dezentrale Regelung (1)
- Diagnosesystem (1)
- Dichotomy (1)
- Digitalisierung (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)
- Dynamic Environments (1)
- Dynamic Memory Management (1)
- Dynamische Speicherverwaltung (1)
- EPM (1)
- Echtzeitsystem (1)
- Echzeit (1)
- Edge-MEC-Cloud (1)
- Edge-based Intelligence (1)
- Educational Measurement (I2.399) (1)
- Eingebettetes System (1)
- Elasticity tensor (1)
- Elastizitätstensor (1)
- Embedded Systems (1)
- Endnutzer (1)
- Endpoint Mobility (1)
- Energieeffizienz (1)
- Energy efficiency (1)
- Entscheidungsträger (1)
- Erfüllbarkeitsproblem (1)
- Erkennung handschriftlicher Artefakte (1)
- Erweiterte Realität (1)
- Ethik (1)
- Euclidean plane (1)
- Euklidische Ebene (1)
- Expert System (1)
- Expertensystem (1)
- FIFO caching strategies (1)
- Fachgespräch (1)
- Fahrsimulation (1)
- Fahrsimulator (1)
- Fairness (1)
- Fallstudie (1)
- Feature Based Registration (1)
- Feature-Matching (1)
- Fehlertoleranz (1)
- Feldprogrammierbare Architekturen (1)
- Fernsteuerung (1)
- Field programmable gate array (1)
- Field-programmable Gate Arrays (1)
- Flugkörper (1)
- Forces (1)
- Formale Sprache (1)
- Formation (1)
- Formation Flight (1)
- Formationsbewegung (1)
- Forschung (1)
- Frühdruck (1)
- Funkressourcenverwaltung (1)
- GNSS/INS integrated navigation (1)
- Gastroenterologische Endoskopie (1)
- Gay-Array-Bauelement (1)
- Generalisierung <Kartografie> (1)
- Generation Problem (1)
- Generierungsproblem (1)
- Genetic Optimization (1)
- Genetische Optimierung (1)
- Georeferenzierung (1)
- Gllobal self-localisation (1)
- Globale Selbstlokalisation (1)
- Grimm brothers personal library (1)
- Ground Station Networks (1)
- H.264 SVC (1)
- H.264/SVC (1)
- HMD (Head-Mounted Display) (1)
- HSPA (1)
- HTTP adaptive video streaming (1)
- Halbordnungen (1)
- Handschrift (1)
- Hardware (1)
- Herzkatheter (1)
- Herzkathetereingriff (1)
- Hierarchische Simulation (1)
- Hintergrundwissen (1)
- Historical Maps (1)
- Historische Karte (1)
- Historische Landkarten (1)
- Hospital (1)
- IEEE 802.11e (1)
- IEEE 802.15.4 (1)
- INS/LIDAR integrated navigation (1)
- IP (1)
- IT security (1)
- Image Aesthetic Assessment (1)
- Implementierung <Informatik> (1)
- Industrial internet (1)
- Industrie 4.0 (1)
- Inferenz <Künstliche Intelligenz> (1)
- Informatik (1)
- Information Extraction (1)
- Information Retrieval (1)
- Information-Retrieval-System (1)
- Instrument Control Toolbox (1)
- Intelligent Virtual Agents (1)
- InteractionSuitcase (1)
- Interaktion (1)
- Internet (1)
- Internet Protokoll (1)
- Invertierte Liste (1)
- Isomorphie (1)
- Itinerare (1)
- Itineraries (1)
- JCAS (1)
- Java <Programmiersprache> (1)
- Java Message Service (1)
- Kademlia (1)
- Kanalzugriff (1)
- Karte (1)
- Kartierung (1)
- Kathará (1)
- Kerneldensity estimation (1)
- Klassendiagramm (1)
- Klima (1)
- Knowledge Discovery (1)
- Knowledge-based Systems Engineering (1)
- Kombinatorik (1)
- Kommunikation (1)
- Kommunikationsnetze (1)
- Komplexitätsklasse (1)
- Komplexitätsklasse NP (1)
- Konvexe Zeichnungen (1)
- Konzeptsuche (1)
- Kooperierende mobile Roboter (1)
- Krankenhaus (1)
- Kreuzungsminimierung (1)
- Kurve (1)
- LFU (1)
- LRU (1)
- Landkartenbeschriftung (1)
- Landnutzungskartierung (1)
- Laser scanning (1)
- Lava (1)
- Learning (1)
- Lehre (1)
- Lernen (1)
- Lidar (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)
- MTC (1)
- Mapping (1)
- Mars (1)
- Mathematische Modellierung (1)
- Mathematisches Modell (1)
- Medical Image Analysis (1)
- Medium <Physik> (1)
- Medizin (1)
- Mehrebenensimulation (1)
- Mehrfahrzeugsysteme (1)
- Mehrkriterielle Optimierung (1)
- Mehrpfadübertragung (1)
- Mehrschichtnetze (1)
- Mehrschichtsystem (1)
- Mensch-Maschine-Kommunikation (1)
- Mesh Networks (1)
- Mesh Netze (1)
- Methodologie (1)
- Middleware (1)
- Miniaturisierung (1)
- Minimally invasive vascular intervention (1)
- Missionsbetrieb (1)
- Mobile Roboter (1)
- Mobiles Internet (1)
- Mobilfunk (1)
- Modell (1)
- Modellbasierte Diagnose (1)
- Modellierungstechniken (1)
- Modelling (1)
- Modularität (1)
- Mond (1)
- Motion Planning (1)
- Multi-Agent-Simulation (1)
- Multi-Layer (1)
- Multi-Network Service (1)
- Multi-Netzwerk Dienste (1)
- Multi-Paradigm Programming (1)
- Multi-Paradigm Programming Framework (1)
- Multi-agent system (1)
- Multiagentensimulation (1)
- Multiagentensystem (1)
- Multimedia (1)
- Multipath Transmission (1)
- Multiple-Choice Examination (1)
- Multiple-Choice Prüfungen (1)
- NP (1)
- NP-Vollständigkeit (1)
- NP-complete sets (1)
- NP-hartes Problem (1)
- NP-schweres Problem (1)
- Network Emulator (1)
- Network Experiments (1)
- Network Management (1)
- Network Measurements (1)
- Network Virtualization (1)
- Netzplantechnik (1)
- Netzplanung (1)
- Netzvirtualisierung (1)
- Netzwerkplanung (1)
- Netzwerkvirtualisierung (1)
- Neuronales Netz (1)
- Next Generation Networks (1)
- Nichtholonome Fahrzeuge (1)
- Nichtlineare Regelung (1)
- Object Detection (1)
- Object-Oriented Programming (1)
- Objektorientierte Programmierung (1)
- Open Source (1)
- Operator (1)
- Optical Flow (1)
- Optimale Kontrolle (1)
- Optimierungsproblem (1)
- Overlay (1)
- Overlay Netzwerke (1)
- Overlay networks (1)
- Overlays (1)
- P4-INT (1)
- Panorama Images (1)
- Parameterkalibrierung (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)
- Planare Graphen (1)
- Planausführung (1)
- Planung (1)
- Planungssystem (1)
- Poisson surface reconstruction (1)
- Polyeder (1)
- Polypektomie (1)
- Post's Classes (1)
- Postsche Klassen (1)
- Prediction (1)
- Process Optimization (1)
- Programmierbare logische Anordnung (1)
- Prozessoptimierung (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)
- Quantor (1)
- RGB-D (1)
- RRM (1)
- Raumdaten (1)
- Real-Time Operating Systems (1)
- Real-time (1)
- Refactoring (1)
- Regelbasiertes System (1)
- Regelung (1)
- Registration (1)
- Registrierung (1)
- Reguläre Sprache (1)
- Rendezvous (1)
- Reproducibility (1)
- Resource and Performance Management (1)
- Ressourcen Management (1)
- Ressourcenallokation (1)
- Rettungsroboter (1)
- Robot (1)
- Roboter (1)
- Rule-based Systems (1)
- SBA (1)
- SDN/NVF (1)
- Scheduling (1)
- Search-and-Rescue (1)
- Selbstkalibrierung (1)
- Self-Evaluation Programs (I2.399.780) (1)
- Self-calibration (1)
- Semantic Web (1)
- Semantics (1)
- Semantik (1)
- Sensing-aaS (1)
- Sensor (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)
- Source Code Visualization (1)
- Soziale Software (1)
- Spherical Robot (1)
- Standardisierung (1)
- Standortproblem (1)
- Sternfreie Sprache (1)
- Steuerung (1)
- Stiffness (1)
- Stochastik (1)
- Stochastikon (1)
- Strahlentherapie (1)
- Straubing-Th´erien-Hierarchie (1)
- Straßennetzwerk (1)
- Straßenverkehr (1)
- Structure-from-Motion (1)
- Strukturelle Komplexität (1)
- Subgroup Mining (1)
- Subgruppenentdeckung (1)
- Suchverfahren (1)
- System (1)
- Szenariogenerierung (1)
- TSN (1)
- TTL (1)
- TTL validation of data consistency (1)
- Teaching (1)
- Telematik (1)
- Terramechanics (1)
- Testbed (1)
- Theoretical computer science (1)
- Thermografie (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)
- VNF (1)
- VPN (1)
- Venus (1)
- Veranstaltung (1)
- Verbotenes Muster (1)
- Verbände (1)
- Verkehrslenkung (1)
- Verteilung von Inhalten (1)
- Video Quality Monitoring (1)
- Video Streaming (1)
- Videoübertragung (1)
- Virtualisierung (1)
- Virtuelles Netzwerk (1)
- Visibility (1)
- Visual Tracking (1)
- Visualisierung (1)
- Visualization (1)
- Visualized Kathará (1)
- Voice-over-IP (VoIP) (1)
- Volltextsuche (1)
- Vorhersage (1)
- WLAN (1)
- Warteschlangentheorie (1)
- Werkstattdiagnose (1)
- WhatsApp (1)
- Wheel (1)
- Winkel (1)
- Wire relaxation (1)
- Wireless LAN (1)
- Wireless Sensor/Actuator Systems (1)
- Wissensbasiertes System (1)
- Wissensendeckung (1)
- Wissensrepräsentation (1)
- Worterweiterungen (1)
- XR-artificial intelligence combination (1)
- XR-artificial intelligence continuum (1)
- YouTube (1)
- Zeichnen von Graphen (1)
- Zeitdiskretes System (1)
- Zugangskontrolle (1)
- Zählprobleme (1)
- abgeschlossene Klassen (1)
- acrophobia (1)
- adaptation models (1)
- administrative boundary (1)
- admission control (1)
- adult learning (1)
- aerodynamics (1)
- aerospace (1)
- aftermarket diagnostic (1)
- agent-based models (1)
- agents (1)
- agile Prozesse (1)
- agile processes (1)
- angular schematization (1)
- annotation (1)
- anomaly detection (1)
- anomaly prediction (1)
- ant-colony optimization (1)
- anthropomorphism (1)
- anxiety (1)
- application design (1)
- approximation algorithms (1)
- arithmetic calculations (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 perception (1)
- binary tanglegram (1)
- biosignals (1)
- bit-parallel (1)
- boundary labeling (1)
- building (1)
- camera orientation (1)
- car-like robots (1)
- carbon (1)
- case study (1)
- certifying algorithm (1)
- chain cover (1)
- channel management (1)
- climate (1)
- co-authorships (1)
- co-inventorships (1)
- coherence (1)
- collaboration (1)
- collision (1)
- communication models (1)
- communication networks (1)
- competitive location (1)
- complexity (1)
- computational complexity (1)
- computer performance evaluation (1)
- computergestützte Softwaretechnik (1)
- concept search (1)
- congruence (1)
- constrained forest (1)
- contact representation (1)
- container virtualization (1)
- content-based image retrieval (1)
- continuous-time SLAM (1)
- convex bipartite graph (1)
- convolutional neural network (1)
- cost-sensitive learning (1)
- counting problems (1)
- crowdsensing (1)
- crowdsourced QoE measurements (1)
- crowdsourced measurements (1)
- crowdsourced network measurements (1)
- cultural and media studies (1)
- culturally aware (1)
- curves (1)
- d3web.Train (1)
- data mining (1)
- data plane programming (1)
- data structure (1)
- data warehouse (1)
- database (1)
- dataplane programming (1)
- decision support system (1)
- decision-making (1)
- decission finding (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)
- descent (1)
- design (1)
- design cycle (1)
- detection time simulation (1)
- dial a ride (1)
- digital twin (1)
- dimensions of proximity (1)
- discrete-time analysis (1)
- disjoint multi-paths (1)
- distributed control (1)
- docker (1)
- driving simulation (1)
- dynamic flow migration (1)
- dynamic programming (1)
- dynamische Umgebungen (1)
- eHealth (1)
- early printed books (1)
- edge labeled graphs (1)
- effective Bandwidth (1)
- efficient algorithm (1)
- electronic health records (1)
- elevated plus-maze (1)
- embedding techniques (1)
- emotions (1)
- emulation (1)
- encryption (1)
- end user (1)
- endurance (1)
- energy efficiency (1)
- event detection (1)
- exercise intensity (1)
- experience (1)
- experimental evaluation (1)
- extended reality (XR) (1)
- failure prediction (1)
- fast reroute (1)
- fault detection (1)
- feature matching (1)
- feature-matching (1)
- federated learning (1)
- few-shot learning (1)
- field-programmable architectures (1)
- field-programmable gate arrays (1)
- fixed-parameter tractability (1)
- food quality (1)
- foreign language learning and teaching (1)
- formation driving (1)
- formation flight (1)
- fruit temperature (1)
- full-text search (1)
- future Internet architecture (1)
- future energy grid exploration (1)
- game mechanics (1)
- gamification (1)
- genetic algorithm (1)
- global IPX network (1)
- graph (1)
- graph algorithm (1)
- graph decomposition (1)
- graphs (1)
- group-based communication (1)
- handwriting (1)
- handwritten artefact recognition (1)
- haptic data (1)
- hardness (1)
- hardware-in-the-loop simulation (1)
- hardware-in-the-loop streaming system (1)
- hierarchy (1)
- historical images (1)
- hit ratio analysis and simulation (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)
- human–computer interaction (1)
- hybrid Diagnostic (1)
- hybrid access (1)
- hybride Diagnose (1)
- illusion of self-motion (1)
- image classification (1)
- image processing (1)
- imbalanced regression (1)
- immersive classroom (1)
- immersive classroom management (1)
- immersive learning technologies (1)
- immersive technologies (1)
- implicit association test (1)
- independent crossing (1)
- induced matching (1)
- informal education (1)
- information extraction (1)
- information systems and information technology (1)
- intelligent transportation systems (1)
- intelligent vehicles (1)
- intelligent virtual agents (1)
- intelligent voice assistant (1)
- intelligente Applikationen (1)
- interactive authoring system (1)
- intercultural learning and teaching (1)
- interdisciplinary education (1)
- internet protocol (1)
- internet traffic (1)
- invasive vascular interventions (1)
- iowa gambling task (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)
- light-gated proteins (1)
- load balancing (1)
- local energy system (1)
- locomotion (1)
- logic programming (1)
- logistics (1)
- long-term analysis (1)
- map projections (1)
- mapping (1)
- mathematical model (1)
- media analysis (1)
- medical records (1)
- medieval manuscripts (1)
- meditation (1)
- metro map (1)
- mindfulness (1)
- misconceptions (1)
- mission operation (1)
- mixed reality (1)
- mixed-cultural (1)
- mixed-cultural settings (1)
- mobile instant messaging (1)
- mobile messaging application (1)
- mobile streaming (1)
- model following (1)
- model output statistics (1)
- model predictive control (1)
- model-base diagnosis (1)
- model-based diagnosis (1)
- modeling techniques (1)
- monotone drawing (1)
- morphing (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)
- n-Gramm (1)
- n-gram (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)
- networks (1)
- neume notation (1)
- neural architecture (1)
- non-native accent (1)
- non-terrestrial networks (1)
- nonholonomic vehicles (1)
- object detection (1)
- octree (1)
- open source (1)
- optical music recognition (1)
- optimization (1)
- orchestration (1)
- overprovisioning (1)
- packet reception method (1)
- partitions (1)
- passage of time (1)
- passive haptic feedback (1)
- path computation (1)
- pattern perception (1)
- perception (1)
- performance (1)
- performance analysis (1)
- performance evaluation (1)
- performance monitoring (1)
- performance prediction (1)
- place-illusion (1)
- plain orchestrating service (1)
- plan execution (1)
- plausibility (1)
- plausibility-illusion (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)
- process model (1)
- prompt engineering (1)
- protein chip (1)
- psychomotor training (1)
- psychophyisology (1)
- public speaking (1)
- q-Gramm (1)
- q-gram (1)
- quadcopter (1)
- quadcopters (1)
- quality assurance (1)
- quality evaluation (1)
- quality of experience (1)
- quality of experience prediction (1)
- radio resource management (1)
- radiology (1)
- ransomware (1)
- real world evidence (1)
- real-world application (1)
- realism (1)
- receding horizon control (1)
- recommender system (1)
- reconfiguration (1)
- regelbasierte Nachbearbeitung (1)
- reload cost (1)
- remote control (1)
- research methods (1)
- resilience (1)
- rich vehicle routing problem (1)
- right angle crossing (1)
- road network (1)
- robotics (1)
- robustness (1)
- rotorcraft (1)
- rotors (1)
- routing (1)
- rule based post processing (1)
- sample weighting (1)
- satisfiability problems (1)
- scalability (1)
- scalability evaluation (1)
- scalable quadcopter (1)
- scenario creation (1)
- science, technology and society (1)
- secure group communication (1)
- segmentation (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)
- sensor (1)
- sensor devices (1)
- sensor fusion (1)
- sensor network (1)
- sentinel (1)
- serious games (1)
- service-curve estimation (1)
- sesnsors (1)
- short block-length (1)
- shortest path routing (1)
- signaling traffic (1)
- simulation system (1)
- simultaneous embedding (1)
- single-electron transistors (1)
- skalierbare Diagnose (1)
- sketching (1)
- slam (1)
- smart meter data utilization (1)
- smart speaker (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)
- spatial presence (1)
- standardization (1)
- state management (1)
- statistical validity (1)
- statistics and numerical data (1)
- stereotypes (1)
- stochastic thinking (1)
- stochastisches Denken (1)
- stroke (1)
- structural complexity (1)
- student simulation (1)
- stylus (1)
- sunburn (1)
- supervised learning (1)
- surface model (1)
- survey (1)
- sustainability (1)
- switching navigation (1)
- system (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)
- 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)
- timestamping method (1)
- tools (1)
- topology (1)
- training systems (1)
- trait anxiety (1)
- trajectory planning (1)
- transformer (1)
- translational neuroscience (1)
- transport microenvironments (1)
- transport protocols (1)
- transportation (1)
- tree (1)
- unmanned aerial vehicle (1)
- unmanned aerial vehicles (1)
- usability evaluation (1)
- use cases (1)
- user experience (1)
- user interaction (1)
- user study (1)
- user-generated content (1)
- v (1)
- vection (1)
- vehicle dynamics (1)
- vehicular navigation (1)
- verbal behaviour (1)
- vernetzte Roboter (1)
- virtual agent (1)
- virtual agent interaction (1)
- virtual humans (1)
- virtual queue (1)
- virtual reality training (1)
- virtual stimuli (1)
- virtual tunnel (1)
- virtual-reality-continuum (1)
- vom Nutzer erfahrene Dienstgüte QoE (1)
- voting location (1)
- waypoint parameter (1)
- wearable (1)
- wheel (1)
- wireless network (1)
- word clouds (1)
- word extensions (1)
- zooming (1)
- zukünftige Kommunikationsnetze (1)
- zukünftiges Internet (1)
- Ähnlichkeitsmaß (1)
Institute
- Institut für Informatik (203) (remove)
Schriftenreihe
Sonstige beteiligte Institutionen
Cooperative, connected and automated mobility (CCAM) systems depend on a reliable communication to provide their service and more crucially to ensure the safety of users. One way to ensure the reliability of a data transmission is to use multiple transmission technologies in combination with redundant flows. In this paper, we describe a system requiring multipath communication in the context of CCAM. To this end, we introduce a data plane-based scheduler that uses replication and integration modules to provide redundant and transparent multipath communication. We provide an analytical model for the full replication module of the system and give an overview of how and where the data-plane scheduler components can be realized.
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%.
Background: Due to the importance of radiologic examinations, such as X-rays or computed tomography scans, for many clinical diagnoses, the optimal use of the radiology department is 1 of the primary goals of many hospitals.
Objective: This study aims to calculate the key metrics of this use by creating a radiology data warehouse solution, where data from radiology information systems (RISs) can be imported and then queried using a query language as well as a graphical user interface (GUI).
Methods: Using a simple configuration file, the developed system allowed for the processing of radiology data exported from any kind of RIS into a Microsoft Excel, comma-separated value (CSV), or JavaScript Object Notation (JSON) file. These data were then imported into a clinical data warehouse. Additional values based on the radiology data were calculated during this import process by implementing 1 of several provided interfaces. Afterward, the query language and GUI of the data warehouse were used to configure and calculate reports on these data. For the most common types of requested reports, a web interface was created to view their numbers as graphics.
Results: The tool was successfully tested with the data of 4 different German hospitals from 2018 to 2021, with a total of 1,436,111 examinations. The user feedback was good, since all their queries could be answered if the available data were sufficient. The initial processing of the radiology data for using them with the clinical data warehouse took (depending on the amount of data provided by each hospital) between 7 minutes and 1 hour 11 minutes. Calculating 3 reports of different complexities on the data of each hospital was possible in 1-3 seconds for reports with up to 200 individual calculations and in up to 1.5 minutes for reports with up to 8200 individual calculations.
Conclusions: A system was developed with the main advantage of being generic concerning the export of different RISs as well as concerning the configuration of queries for various reports. The queries could be configured easily using the GUI of the data warehouse, and their results could be exported into the standard formats Excel and CSV for further processing.
Group-based communication is a highly popular communication paradigm, which is especially prominent in mobile instant messaging (MIM) applications, such as WhatsApp. Chat groups in MIM applications facilitate the sharing of various types of messages (e.g., text, voice, image, video) among a large number of participants. As each message has to be transmitted to every other member of the group, which multiplies the traffic, this has a massive impact on the underlying communication networks. However, most chat groups are private and network operators cannot obtain deep insights into MIM communication via network measurements due to end-to-end encryption. Thus, the generation of traffic is not well understood, given that it depends on sizes of communication groups, speed of communication, and exchanged message types. In this work, we provide a huge data set of 5,956 private WhatsApp chat histories, which contains over 76 million messages from more than 117,000 users. We describe and model the properties of chat groups and users, and the communication within these chat groups, which gives unprecedented insights into private MIM communication. In addition, we conduct exemplary measurements for the most popular message types, which empower the provided models to estimate the traffic over time in a chat group.
Cooperative, connected and automated mobility (CCAM) systems depend on a reliable communication to provide their service and more crucially to ensure the safety of users. One way to ensure the reliability of a data transmission is to use multiple transmission technologies in combination with redundant flows. In this paper, we describe a system requiring multipath communication in the context of CCAM. To this end, we introduce a data plane-based scheduler that uses replication and integration modules to provide redundant and transparent multipath communication. We provide an analytical model for the full replication module of the system and give an overview of how and where the data-plane scheduler components can be realized.
The steadily increasing usage of smart meters generates a valuable amount of high-resolution data about the individual energy consumption and production of local energy systems. Private households install more and more photovoltaic systems, battery storage and big consumers like heat pumps. Thus, our vision is to augment these collected smart meter time series of a complete system (e.g., a city, town or complex institutions like airports) with simulatively added previously named components. We, therefore, propose a novel digital twin of such an energy system based solely on a complete set of smart meter data including additional building data. Based on the additional geospatial data, the twin is intended to represent the addition of the abovementioned components as realistically as possible. Outputs of the twin can be used as a decision support for either system operators where to strengthen the system or for individual households where and how to install photovoltaic systems and batteries. Meanwhile, the first local energy system operators had such smart meter data of almost all residential consumers for several years. We acquire those of an exemplary operator and discuss a case study presenting some features of our digital twin and highlighting the value of the combination of smart meter and geospatial data.
There is great interest in affordable, precise and reliable metrology underwater:
Archaeologists want to document artifacts in situ with high detail.
In marine research, biologists require the tools to monitor coral growth and geologists need recordings to model sediment transport.
Furthermore, for offshore construction projects, maintenance and inspection millimeter-accurate measurements of defects and offshore structures are essential.
While the process of digitizing individual objects and complete sites on land is well understood and standard methods, such as Structure from Motion or terrestrial laser scanning, are regularly applied, precise underwater surveying with high resolution is still a complex and difficult task.
Applying optical scanning techniques in water is challenging due to reduced visibility caused by turbidity and light absorption.
However, optical underwater scanners provide significant advantages in terms of achievable resolution and accuracy compared to acoustic systems.
This thesis proposes an underwater laser scanning system and the algorithms for creating dense and accurate 3D scans in water.
It is based on laser triangulation and the main optical components are an underwater camera and a cross-line laser projector.
The prototype is configured with a motorized yaw axis for capturing scans from a tripod.
Alternatively, it is mounted to a moving platform for mobile mapping.
The main focus lies on the refractive calibration of the underwater camera and laser projector, the image processing and 3D reconstruction.
For highest accuracy, the refraction at the individual media interfaces must be taken into account.
This is addressed by an optimization-based calibration framework using a physical-geometric camera model derived from an analytical formulation of a ray-tracing projection model.
In addition to scanning underwater structures, this work presents the 3D acquisition of semi-submerged structures and the correction of refraction effects.
As in-situ calibration in water is complex and time-consuming, the challenge of transferring an in-air scanner calibration to water without re-calibration is investigated, as well as self-calibration techniques for structured light.
The system was successfully deployed in various configurations for both static scanning and mobile mapping.
An evaluation of the calibration and 3D reconstruction using reference objects and a comparison of free-form surfaces in clear water demonstrate the high accuracy potential in the range of one millimeter to less than one centimeter, depending on the measurement distance.
Mobile underwater mapping and motion compensation based on visual-inertial odometry is demonstrated using a new optical underwater scanner based on fringe projection.
Continuous registration of individual scans allows the acquisition of 3D models from an underwater vehicle.
RGB images captured in parallel are used to create 3D point clouds of underwater scenes in full color.
3D maps are useful to the operator during the remote control of underwater vehicles and provide the building blocks to enable offshore inspection and surveying tasks.
The advancing automation of the measurement technology will allow non-experts to use it, significantly reduce acquisition time and increase accuracy, making underwater metrology more cost-effective.
In network research, reproducibility of experiments is not always easy to achieve. Infrastructures are cumbersome to set up or are not available due to vendor-specific devices. Emulators try to overcome those issues to a given extent and are available in different service models. Unfortunately, the usability of emulators requires time-consuming efforts and a deep understanding of their functionality. At first, we analyze to which extent currently available open-source emulators support network configurations and how user-friendly they are. With these insights, we describe, how an ease-to-use emulator is implemented and may run as a Network Emulator as a Service (NEaaS). Therefore, virtualization plays a major role in order to deploy a NEaaS based on Kathará.
Service orchestration requires enormous attention and is a struggle nowadays. Of course, virtualization provides a base level of abstraction for services to be deployable on a lot of infrastructures. With container virtualization, the trend to migrate applications to a micro-services level in order to be executable in Fog and Edge Computing environments increases manageability and maintenance efforts rapidly. Similarly, network virtualization adds effort to calibrate IP flows for Software-Defined Networks and eventually route it by means of Network Function Virtualization. Nevertheless, there are concepts like MAPE-K to support micro-service distribution in next-generation cloud and network environments. We want to explore, how a service distribution can be improved by adopting machine learning concepts for infrastructure or service changes. Therefore, we show how federated machine learning is integrated into a cloud-to-fog-continuum without burdening single nodes.
Knowledge about ransomware is important for protecting sensitive data and for participating in public debates about suitable regulation regarding its security. However, as of now, this topic has received little to no attention in most school curricula. As such, it is desirable to analyze what citizens can learn about this topic outside of formal education, e.g., from news articles. This analysis is both relevant to analyzing the public discourse about ransomware, as well as to identify what aspects of this topic should be included in the limited time available for this topic in formal education. Thus, this paper was motivated both by educational and media research. The central goal is to explore how the media reports on this topic and, additionally, to identify potential misconceptions that could stem from this reporting. To do so, we conducted an exploratory case study into the reporting of 109 media articles regarding a high-impact ransomware event: the shutdown of the Colonial Pipeline (located in the east of the USA). We analyzed how the articles introduced central terminology, what details were provided, what details were not, and what (mis-)conceptions readers might receive from them. Our results show that an introduction of the terminology and technical concepts of security is insufficient for a complete understanding of the incident. Most importantly, the articles may lead to four misconceptions about ransomware that are likely to lead to misleading conclusions about the responsibility for the incident and possible political and technical options to prevent such attacks in the future.
Scalability is often mentioned in literature, but a stringent definition is missing. In particular, there is no general scalability assessment which clearly indicates whether a system scales or not or whether a system scales better than another. The key contribution of this article is the definition of a scalability index (SI) which quantifies if a system scales in comparison to another system, a hypothetical system, e.g., linear system, or the theoretically optimal system. The suggested SI generalizes different metrics from literature, which are specialized cases of our SI. The primary target of our scalability framework is, however, benchmarking of two systems, which does not require any reference system. The SI is demonstrated and evaluated for different use cases, that are (1) the performance of an IoT load balancer depending on the system load, (2) the availability of a communication system depending on the size and structure of the network, (3) scalability comparison of different location selection mechanisms in fog computing with respect to delays and energy consumption; (4) comparison of time-sensitive networking (TSN) mechanisms in terms of efficiency and utilization. Finally, we discuss how to use and how not to use the SI and give recommendations and guidelines in practice. To the best of our knowledge, this is the first work which provides a general SI for the comparison and benchmarking of systems, which is the primary target of our scalability analysis.
Deep learning enables enormous progress in many computer vision-related tasks. Artificial Intel- ligence (AI) steadily yields new state-of-the-art results in the field of detection and classification. Thereby AI performance equals or exceeds human performance. Those achievements impacted many domains, including medical applications.
One particular field of medical applications is gastroenterology. In gastroenterology, machine learning algorithms are used to assist examiners during interventions. One of the most critical concerns for gastroenterologists is the development of Colorectal Cancer (CRC), which is one of the leading causes of cancer-related deaths worldwide. Detecting polyps in screening colonoscopies is the essential procedure to prevent CRC. Thereby, the gastroenterologist uses an endoscope to screen the whole colon to find polyps during a colonoscopy. Polyps are mucosal growths that can vary in severity.
This thesis supports gastroenterologists in their examinations with automated detection and clas- sification systems for polyps. The main contribution is a real-time polyp detection system. This system is ready to be installed in any gastroenterology practice worldwide using open-source soft- ware. The system achieves state-of-the-art detection results and is currently evaluated in a clinical trial in four different centers in Germany.
The thesis presents two additional key contributions: One is a polyp detection system with ex- tended vision tested in an animal trial. Polyps often hide behind folds or in uninvestigated areas. Therefore, the polyp detection system with extended vision uses an endoscope assisted by two additional cameras to see behind those folds. If a polyp is detected, the endoscopist receives a vi- sual signal. While the detection system handles the additional two camera inputs, the endoscopist focuses on the main camera as usual.
The second one are two polyp classification models, one for the classification based on shape (Paris) and the other on surface and texture (NBI International Colorectal Endoscopic (NICE) classification). Both classifications help the endoscopist with the treatment of and the decisions about the detected polyp.
The key algorithms of the thesis achieve state-of-the-art performance. Outstandingly, the polyp detection system tested on a highly demanding video data set shows an F1 score of 90.25 % while working in real-time. The results exceed all real-time systems in the literature. Furthermore, the first preliminary results of the clinical trial of the polyp detection system suggest a high Adenoma Detection Rate (ADR). In the preliminary study, all polyps were detected by the polyp detection system, and the system achieved a high usability score of 96.3 (max 100). The Paris classification model achieved an F1 score of 89.35 % which is state-of-the-art. The NICE classification model achieved an F1 score of 81.13 %.
Furthermore, a large data set for polyp detection and classification was created during this thesis. Therefore a fast and robust annotation system called Fast Colonoscopy Annotation Tool (FastCAT) was developed. The system simplifies the annotation process for gastroenterologists. Thereby the
i
gastroenterologists only annotate key parts of the endoscopic video. Afterward, those video parts are pre-labeled by a polyp detection AI to speed up the process. After the AI has pre-labeled the frames, non-experts correct and finish the annotation. This annotation process is fast and ensures high quality. FastCAT reduces the overall workload of the gastroenterologist on average by a factor of 20 compared to an open-source state-of-art annotation tool.
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.
In the last decades, the classical Vehicle Routing Problem (VRP), i.e., assigning a set of orders to vehicles and planning their routes has been intensively researched. As only the assignment of order to vehicles and their routes is already an NP-complete problem, the application of these algorithms in practice often fails to take into account the constraints and restrictions that apply in real-world applications, the so called rich VRP (rVRP) and are limited to single aspects. In this work, we incorporate the main relevant real-world constraints and requirements. We propose a two-stage strategy and a Timeline algorithm for time windows and pause times, and apply a Genetic Algorithm (GA) and Ant Colony Optimization (ACO) individually to the problem to find optimal solutions. Our evaluation of eight different problem instances against four state-of-the-art algorithms shows that our approach handles all given constraints in a reasonable time.
This paper gives an overview of our recent activities in the field of satellite communication networks, including an introduction to geostationary satellite systems and Low Earth Orbit megaconstellations. To mitigate the high latencies of geostationary satellite networks, TCP-splitting Performance Enhancing Proxies are deployed. However, these cannot be applied in the case of encrypted transport headers as it is the case for VPNs or QUIC. We summarize performance evaluation results from multiple measurement campaigns. In a recently concluded project, multipath communication was used to combine the advantages of very heterogeneous communication paths: low data rate, low latency (e.g., DSL light) and high data rate, high latency (e.g., geostationary satellite).
The first step towards aerial planetary exploration has been made. Ingenuity shows extremely promising results, and new missions are already underway. Rotorcraft are capable of flight. This capability could be utilized to support the last stages of Entry, Descent, and Landing. Thus, mass and complexity could be scaled down.
Autorotation is one method of descent. It describes unpowered descent and landing, typically performed by helicopters in case of an engine failure. MAPLE is suggested to test these procedures and understand autorotation on other planets. In this series of experiments, the Ingenuity helicopter is utilized. Ingenuity would autorotate a ”mid-air-landing” before continuing with normal flight. Ultimately, the collected data shall help to understand autorotation on Mars and its utilization for interplanetary exploration.
Lightning has fascinated humanity since the beginning of our existence. Different types of lightning like sprites and blue jets were discovered, and many more are theorized. However, it is very likely that these phenomena are not exclusive to our home planet. Venus’s dense and active atmosphere is a place where lightning is to be expected. Missions like Venera, Pioneer, and Galileo have carried instruments to measure electromagnetic activity. These measurements have indeed delivered results. However, these results are not clear. They could be explained by other effects like cosmic rays, plasma noise, or spacecraft noise. Furthermore, these lightning seem different from those we know from our home planet. In order to tackle these issues, a different approach to measurement is proposed. When multiple devices in different spacecraft or locations can measure the same atmospheric discharge, most other explanations become increasingly less likely. Thus, the suggested instrument and method of VELEX incorporates multiple spacecraft. With this approach, the question about the existence of lightning on Venus could be settled.
Time-to-Live (TTL) caches decouple the occupancy of objects in cache through object-specific validity timers. Stateof- the art techniques provide exact methods for the calculation of object-specific hit probabilities given entire cache hierarchies with random inter-cache network delays. The system hit probability is a provider-centric metric as it relates to the origin offload, i.e., the decrease in the number of requests that are served by the content origin server. In this paper we consider a user-centric metric, i.e., the response time, which is shown to be structurally different from the system hit probability. Equipped with the state-of-theart exact modeling technique using Markov-arrival processes we derive expressions for the expected object response time and pave a way for its optimization under network delays.
Utilizing multiple access technologies such as 5G, 4G, and Wi-Fi within a coherent framework is currently standardized by 3GPP within 5G ATSSS. Indeed, distributing packets over multiple networks can lead to increased robustness, resiliency and capacity. A key part of such a framework is the multi-access proxy, which transparently distributes packets over multiple paths. As the proxy needs to serve thousands of customers, scalability and performance are crucial for operator deployments. In this paper, we leverage recent advancements in data plane programming, implement a multi-access proxy based on the MP-DCCP tunneling approach in P4 and hardware accelerate it by deploying the pipeline on a smartNIC. This is challenging due to the complex scheduling and congestion control operations involved. We present our pipeline and data structures design for congestion control and packet scheduling state management. Initial measurements in our testbed show that packet latency is in the range of 25 μs demonstrating the feasibility of our approach.
The rapid development of green and sustainable materials opens up new possibilities in the field of applied research. Such materials include nanocellulose composites that can integrate many components into composites and provide a good chassis for smart devices. In our study, we evaluate four approaches for turning a nanocellulose composite into an information storage or processing device: 1) nanocellulose can be a suitable carrier material and protect information stored in DNA. 2) Nucleotide-processing enzymes (polymerase and exonuclease) can be controlled by light after fusing them with light-gating domains; nucleotide substrate specificity can be changed by mutation or pH change (read-in and read-out of the information). 3) Semiconductors and electronic capabilities can be achieved: we show that nanocellulose is rendered electronic by iodine treatment replacing silicon including microstructures. Nanocellulose semiconductor properties are measured, and the resulting potential including single-electron transistors (SET) and their properties are modeled. Electric current can also be transported by DNA through G-quadruplex DNA molecules; these as well as classical silicon semiconductors can easily be integrated into the nanocellulose composite. 4) To elaborate upon miniaturization and integration for a smart nanocellulose chip device, we demonstrate pH-sensitive dyes in nanocellulose, nanopore creation, and kinase micropatterning on bacterial membranes as well as digital PCR micro-wells. Future application potential includes nano-3D printing and fast molecular processors (e.g., SETs) integrated with DNA storage and conventional electronics. This would also lead to environment-friendly nanocellulose chips for information processing as well as smart nanocellulose composites for biomedical applications and nano-factories.