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Real-time Stream-based Monitoring [article]

Peter Faymonville , Hazem Torfah
2019 arXiv   pre-print
We introduce RTLola, a new stream-based specification language for the description of real-time properties of reactive systems.  ...  The key feature is the integration of sliding windows over real-time intervals with aggregation functions into the language.  ...  Real-time Stream-based Monitoring Conclusion We introduced RTLola, a stream-based specification language for the description of monitors for real-time properties.  ... 
arXiv:1711.03829v4 fatcat:e5v5222xdrfw3hioqa2sv7ci7u

Real-time Visualization of Stream-based Monitoring Data [article]

Jan Baumeister and Bernd Finkbeiner and Stefan Gumhold and Malte Schledjewski
2022 arXiv   pre-print
This visualization requires extensive real-time data processing, which includes the synchronization of data from different streams, filtering and aggregation, and priorization and management of user attention  ...  Stream-based runtime monitors are used in safety-critical applications such as Unmanned Aerial Systems (UAS) to compute comprehensive statistics and logical assessments of system health that provide the  ...  Conclusions In this paper, we have introduced a principled approach to the real-time visualization of stream-based monitoring data.  ... 
arXiv:2205.12823v1 fatcat:byxtxty6gffqbm663qstpwo2oa

QoS monitoring in real-time streaming overlays based on lock-free data structures

Franco Tommasi, Valerio De Luca, Catiuscia Melle
2021 Multimedia tools and applications  
AbstractPeer-to-peer streaming is a well-known technology for the large-scale distribution of real-time audio/video contents.  ...  Delay requirements are very strict in interactive real-time scenarios (such as synchronous distance learning), where playback lag should be of the order of seconds.  ...  We used it to implement our own tree-based overlay for real-time streaming [48] .  ... 
doi:10.1007/s11042-020-10198-9 fatcat:sttn3rjwrrgcvgtnujf6uedt54

A Data Stream-Based, Integrative Approach to Reliable and Easily Manageable Real Time Environmental Monitoring

Meilan Jiang, Jonghyun Lee, Karpjoo Jeong, Zhenguo Cui, Bomchul Kim, Suntae Hwang, Young Jean Choi
2015 International Journal of Distributed Sensor Networks  
Real time environmental monitoring (hereafter, RTEM) is crucial for observing and studying dynamic, rare, or abrupt phenomena in the environment.  ...  Therefore, the simple data stream-based distributed system model facilitates the development of general RTEM middleware system.  ...  In sensor-based real time monitoring, a sensor generates a stream of monitoring data records continuously and there are many sensor data streams generated from sensor networks.  ... 
doi:10.1155/2015/914612 fatcat:7bj26y2iojf7bi6s6hd6rhiiae

A Stream-Oriented Real-Time Fault Tolerant Strategy for Monitoring Big Data of Power Distribution Network Based on Spark

Zhijian Qu, Xiang Peng, Qunfeng Wang, Ruilin Zhou
2017 DEStech Transactions on Environment Energy and Earth Science  
Aiming at the existing problem of monitoring data volume blowout and lack of valid real-time distributed fault tolerant strategy in power distribution network, a new fault tolerant strategy based on Spark  ...  This strategy can meet the real-time fault tolerant performance requirements of monitoring big data, and it is of evident practical value for improving the fault tolerant performance of dispatching system  ...  In this paper, based on the Spark, a real-time distributed micro batch computing framework, and combining the design techniques of record-level fault tolerance and lineage chain retrospection, which can  ... 
doi:10.12783/dteees/icnerr2017/13310 fatcat:bp2ivedja5f4zc7q45uca5j2ry

Stream4Flow: Real-time IP flow host monitoring using Apache Spark

Tomas Jirsik
2018 NOMS 2018 - 2018 IEEE/IFIP Network Operations and Management Symposium  
Moreover, we describe a real-time host monitoring workflow in data streams in detail and present advantages of flow-based host monitoring in Apache Spark including real-time host profiling, dynamic level  ...  We demonstrate utilization of Stream4Flow for real-time IP flow host monitoring in a large campus network. Contemporary IP flow analysis systems are not designed for the continuous host monitoring.  ...  REAL-TIME IP FLOW HOST MONITORING The demonstrated advantages of stream-based IP flow monitoring in Stream4Flow are following: dynamic level of detail and granularity, ability to create a host profile,  ... 
doi:10.1109/noms.2018.8406132 dblp:conf/noms/Jirsik18 fatcat:3ox7nthu4jdvvf6w75mx3qj23u

Explanation-Guided Fairness Testing through Genetic Algorithm [article]

Ming Fan, Wenying Wei, Wuxia Jin, Zijiang Yang, Ting Liu
2022 arXiv   pre-print
Experiments on multiple real-world benchmarks, including tabular and text datasets, show that ExpGA presents higher efficiency and effectiveness than four state-of-the-art approaches.  ...  The longer the samples, the larger the detection space, leading to a higher time cost in every iteration. Moreover, we compare the performance of our approach with MT-NLP based on CNN and LR models.  ...  We assume that a discriminatory where 𝑇𝑖𝑚𝑒 and 𝐷𝑆𝑁 denote the consumed time and the number of detected discriminatory samples, respectively.  ... 
arXiv:2205.08335v1 fatcat:kwcxbsoif5ct3cq4m4i77rwee4

An Images Monitoring System Based On Multi-Format Streaming Grid Architecture

Yi-Haur Shiau, Sun-In Lin, Shi-Wei Lo, Hsiu-Mei Chou, Yi-Hsuan Chen
2009 Zenodo  
This paper proposes a novel multi-format stream grid architecture for real-time image monitoring system.  ...  The system, based on a three-tier architecture, includes stream receiving unit, stream processor unit, and presentation unit. It is a distributed computing and a loose coupling architecture.  ...  This paper proposes a multi-format stream grid architecture for real-time image monitoring system.  ... 
doi:10.5281/zenodo.1076604 fatcat:lqrtoehvpfd6hku3gadseybdse

StreamLAB: Stream-based Monitoring of Cyber-Physical Systems [chapter]

Peter Faymonville, Bernd Finkbeiner, Malte Schledjewski, Maximilian Schwenger, Marvin Stenger, Leander Tentrup, Hazem Torfah
2019 Lecture Notes in Computer Science  
Specifications are written in RTLola, a stream-based specification language with formal semantics.  ...  StreamLAB provides an extensive analysis of the specification, including the computation of memory consumption and run-time guarantees.  ...  Real-Time Lola RTLola extends the stream-based specification languages Lola [12] with real-time features.  ... 
doi:10.1007/978-3-030-25540-4_24 fatcat:psl2bcfmmvdijg5zrb6gbeeuc4

IoTSAS: An Integrated System for Real-Time Semantic Annotation and Interpretation of IoT Sensor Stream Data

Besmir Sejdiu, Florije Ismaili, Lule Ahmedi
2021 Computers  
This paper focuses on processing and interpreting sensor stream data in real time by integrating different semantic annotations.  ...  Extracting the contextual information essential for situational knowledge from sensor stream data is very difficult, especially when processing and interpretation of these data are required in real time  ...  Our IoTSAS system works based on real-time semantic annotation.  ... 
doi:10.3390/computers10100127 fatcat:6lvvltuhdbfw5lnekxtdp3j5hm

Toward Stream-Based IP Flow Analysis

Tomas Jirsik, Milan Cermak, Daniel Tovarnak, Pavel Celeda
2017 IEEE Communications Magazine  
Our ongoing results show that stream-based IP flow analysis successfully meets the abovementioned challenges and is suitable for achieving real-time network security analysis and situational awareness.  ...  In this article, we discuss the transformation of present IP flow analysis into a stream-based approach to face the above-mentioned challenges.  ...  The stream-based analysis workflow benefits from compatibility with current monitoring systems and excels in real-time attack detection, monitoring both network and individual hosts, and providing a context  ... 
doi:10.1109/mcom.2017.1600972 fatcat:v7bxvqyfsfggzmxbvsj5xeqftm

Real Time on Bed Medical Services : A Technological Gift to the Society

Girish Talmale
2020 Bioscience Biotechnology Research Communications  
c) Real time data streaming using Kafka pipeline and d) Spark for large scale real time data processing and analytics.  ...  The sensor node data gets analyzed on fog nodes taking time critical actions. The healthcare data is then sent using Kafka real time streaming using Kafka pipeline.  ...  Real time healthcare data streaming using Kafka 4. pipeline. Spark based real time analysis of healthcare data 5. on cloud.  ... 
doi:10.21786/bbrc/13.14/32 fatcat:sfgzxaeytff4rpp2bfuhkblt6q

Adaptive Real Time Data Mining Methodology for Wireless Body Area Network Based Healthcare Applications

Dipti Durgesh Patil
2012 Advanced Computing An International Journal  
monitored real time vital body signals.  ...  This paper presents the innovative wireless sensor network based Mobile Real-time Health care Monitoring (WMRHM) framework which has the capacity of giving health predictions online based on continuously  ...  Figure 1 : 1 Wireless sensor network based Mobile Real-Time Health Monitoring System (W-MRHM) Framework Figure 2 : 2 General Process of Data Stream Mining.  ... 
doi:10.5121/acij.2012.3408 fatcat:4qsuijdiebfblpt22b3r6bmnii

RTnet: a distributed real-time protocol for broadcast-capable networks

F. Hanssen, P.G. Jansen, H. Scholten, S. Mullender
2005 Joint International Conference on Autonomic and Autonomous Systems and International Conference on Networking and Services - (icas-isns'05)  
To give such guarantees, an admission control, based on feasibility analysis, is required before admitting a new real-time stream to the network.  ...  Non-real-time traffic: besides periodic real-time traffic our network protocol should allow for best-effort traffic, which must not affect the deadlines of real-time streams.  ...  The real-time network RETHER [16] [17] [18] , developed at the State University of New York at Stony Brook, is based on Ethernet.  ... 
doi:10.1109/icas-icns.2005.85 dblp:conf/icas/HanssenJSM05 fatcat:zdlejqzczbhfxliemd3gaidr5m

Web-based sensor streaming wearable for respiratory monitoring applications

Rovira Carlos, Shirley Coyle, Brian Corcoran, Dermot Diamond, Ward Tomas, McCoy Aaron, Florin Stroiescu, Kieran Daly
2011 2011 IEEE SENSORS Proceedings  
A web-based signal streaming protocol makes the signals available as real-time streams to authorized subscribers over standard browsers.  ...  This system will, for the first time, allow therapists to monitor and guide the respiratory efforts of patients in real-time through a web browser.  ...  to a central web-based signal streaming server 4 for real-time distribution to authorized users.  ... 
doi:10.1109/icsens.2011.6127168 fatcat:73u4bag5jrf75it72bjqmmh4ja
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