scholarly journals Event-based large scale surveillance video summarization

2016 ◽  
Vol 187 ◽  
pp. 66-74 ◽  
Author(s):  
Xinhui Song ◽  
Li Sun ◽  
Jie Lei ◽  
Dapeng Tao ◽  
Guanhong Yuan ◽  
...  
Keyword(s):  
Large Scale ◽  
Video Summarization ◽  
Surveillance Video ◽  
Event Based

Automating Integration Testing of Large-Scale Publish/Subscribe Systems

2010 ◽  
pp. 140-163 ◽  
Author(s):  
Éric Piel ◽  
Alberto González ◽  
Hans-Gerhard Gross
Keyword(s):  
Large Scale ◽  
Unit Testing ◽  
Integration Testing ◽  
Data Types ◽  
Event Sequences ◽  
Data Flows ◽  
Complementary Techniques ◽  
Event Based ◽  
Runtime Testing

Publish/subscribe systems are event-based systems separated into several components which publish and subscribe events that correspond to data types. Testing each component individually is not sufficient for testing the whole system; it also requires testing the integration of those components together. In this chapter, first we identify the specificities and difficulties of integration testing of publish/subscribe systems. Afterwards, two different and complementary techniques to test the integration are presented. One is based on the random generation of a high number of event sequences and on generic oracles, in order to find a malfunctioning state of the system. The second one uses a limited number of predefined data-flows which must respect a precise behaviour, implementable with the same mechanism as unit-testing. As event-based systems are well fitted for runtime modification, the particularities of runtime testing are also introduced, and the usage in the context of integration testing is detailed. A case study presents an example of integration testing on a small system inspired by the systems used in the maritime safety and security domain.

Unobtrusive Movement Interaction for Mobile Devices

2008 ◽  
pp. 507-523 ◽  
Author(s):  
Panu Korpipää ◽  
Jukka Linjama ◽  
Juha Kela ◽  
Tapani Rantakokko
Keyword(s):  
Mobile Devices ◽  
Mobile Device ◽  
Large Scale ◽  
Social Acceptance ◽  
User Interaction ◽  
Technical Feasibility ◽  
Practical Applications ◽  
Movement Interaction ◽  
Gesture Control ◽  
Event Based

Gesture control of mobile devices is an emerging user interaction modality. Large-scale deployment has been delayed by two main technical challenges: detecting gestures reliably and power consumption. There have also been user-experience-related challenges, such as indicating the start of a gesture, social acceptance, and feedback on the gesture detection status. This chapter evaluates a solution for the main challenges: an event-based movement interaction modality, tapping, that emphasizes minimal user effort in interacting with a mobile device. The technical feasibility of the interaction method is examined with a smartphone equipped with a sensor interaction cover, utilizing an enabling software framework. The reliability of detecting tapping is evaluated by analyzing a dataset collected with the smartphone prototype. Overall, the results suggest that detecting tapping is reliable enough for practical applications in mobile computing when the interaction is performed in a stationary situation.

Fast Data Processing for Large-Scale SOA and Event-Based Systems

2015 ◽  
Vol 5 (4) ◽  
pp. 54-77
Author(s):  
Marcel Tilly ◽  
Stephan Reiff-Marganiec
Keyword(s):  
Data Processing ◽  
Information Flow ◽  
Mobile Networks ◽  
Large Scale ◽  
New Concepts ◽  
Combining Data ◽  
Access To Data ◽  
Processing Techniques ◽  
Event Based ◽  
The Internet Of Things

The deluge of intelligent objects that are providing continuous access to data and services on one hand and the demand of developers and consumers to handle these data on the other hand require us to think about new communication paradigms and middleware. In hyper-scale systems, such as in the Internet of Things, large scale sensor networks or even mobile networks, one emerging requirement is to process, procure, and provide information with almost zero latency. This work is introducing new concepts for a middleware to enable fast communication by limiting information flow with filtering concepts using policy obligations and combining data processing techniques adopted from complex event processing.

An Experimental Analysis of Modified EEECARP

2020 ◽  
pp. 318-336
Author(s):  
Venkata Ramana Sarella ◽  
Deshai Nakka ◽  
Sekhar B. V. D. S. ◽  
Krishna Rao Sala ◽  
Sameer Chakravarthy V. V. S. S.
Keyword(s):  
Large Scale ◽  
Cluster Formation ◽  
Adaptive Routing ◽  
Dynamic Routing ◽  
Energy Utilization ◽  
Relay Nodes ◽  
Hop Count ◽  
Iot Applications ◽  
Event Clustering ◽  
Event Based

Designing various energy-saving routing protocols for real-time internet of things (IoT) applications in modern secure wireless sensor networks (MS-WSN) is a tough task. Many hierarchical protocols for WSNs were not well scalable to large-scale IoT applications. Low energy adaptive two-level-CH clustering hierarchy (LEATCH) is an optimized technique reduces the energy-utilization of few cluster heads, but the LEATCH is not suitable for scalable and dynamic routing. For dynamic routing in MS-WSN, energy efficiency and event clustering adaptive routing protocol (EEECARP) with event-based dynamic clustering and relay communication by selecting intermediates nodes as relay-nodes is necessary. However, EEECARP cannot consider the hop-count, different magnitude ecological conditions, and energy wastage in cluster formation while collisions occur. So, the authors propose the modified EEECARP to address these issues for better dynamic event clustering adaptive routing to improve the lifetime of MS-WSNs. The experimental outcomes show that proposed protocol achieves better results than EEECARP and LEATCH.

Ontology-based analysis of the large collection of historical Hebrew manuscripts

2019 ◽  
Author(s):  
Maayan Zhitomirsky-Geffet ◽  
Gila Prebor ◽  
Isaac Miller
Keyword(s):  
Quantitative Analysis ◽  
Large Scale ◽  
Scale Analysis ◽  
Large Collection ◽  
Data Enrichment ◽  
Large Scale Analysis ◽  
The World ◽  
Library Catalogue ◽  
Event Based ◽  
New Framework

Abstract In this paper, we present a new semi-automatic methodology for construction of event-based ontology from the library catalogue of the largest collection in the world of metadata records of historical Hebrew manuscripts. Based on the constructed ontology, we developed and implemented a new framework for catalogue data enrichment, correction, and its systematic quantitative analysis. Finally, we demonstrate the results of the proposed large-scale analysis of three most prominent event types in the corpus, as well as a few cross-event relations and trends.

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