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Evaluating a Mobile Emergency Response System

Evaluating a Mobile Emergency Response System

引用

14th International Workshop of Groupware

作者： Sapateiro, Claudio Antunes, Pedro Zurita, Gustavo Vogt, Rodrigo Baloian, Nelson Systems and Informatics Department Superior School of Technology Polytechnic Institute of Setúbal Portugal Department of Informatics Faculty of Sciences University of Lisbon Portugal Management Control and Information Systems Department Business School Universidad de Chile Chile Computer Science Department Engineering School Universidad de Chile Chile

ISBN: (纸本)9783540928300

Existing information systems often lack support to crisis and emergency situations. In such scenarios, the involved actors often engage in ad hoc collaborations necessary to understand and respond to the emerging events. We propose a collaboration model and a prototype aiming to improve the consistency and effectiveness of emergent work activities. Our approach defends the requirement to construct shared situation awareness (SA). To support SA, we developed a collaborative artifact named situation matrixes (SM), which relates different situation dimensions (SD) of the crisis/emergency scenario. A method was also developed to construct and evaluate concrete SM and SD. This method was applied in two organizations' IT service desk teams, which often have to deal with emergency situations. The target organizations found our approach very relevant in organizing their response to emergencies.

关键词： Emergency services

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***: Resource sharing system for explicit fashion-related image annotation

***: Resource sharing system for explicit fashion-related im...

引用

2008 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology - Workshops, WI-IAT Workshops 2008

作者： Toyama, Toshiaki Konishi, Katsumi Depertment of Computer Science and Communication Engineering Kogakuin University 1-24-2 Nishi-shinjuku Shinjuku-ku Tokyo Japan Depertment of Computer Science Faculty of Informatics Kogakuin University 1-24-2 Nishi-shinjuku Shinjuku-ku Tokyo Japan

ISBN: (纸本)9780769534961

In this paper, we present the web-based resource sharing system KnownStyleNoLife, which allows users explicitly annotate fashion-related images. KnownStyleNoLife harnesses human power and collects image metadata such as object locations, object labels, image rating and semantic relationships among images. Metadata of that type are invaluable as it is difficult for ordinary computer software to extract equivalent metadata from the Web. Acquiring image metadata such as the type and location of objects in images requires a computer to use machine learning techniques, needing training with sample images and Web search techniques, with the outcome that only limited image metadata are extracted. Furthermore, the semantic image relationship metadata is based upon people's image perception, hence user feedback is required to acquire it. Known-StyleNoLife provides a social value to users in return for their explicit annotations. It is a novel approach to harness human power to acquire relevant image metadata. © 2008 IEEE.

关键词： Metadata

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The Fourier Spectrum Analysis of Optical Feedback Self-Mixing Signal under Weak and Moderate Feedback

The Fourier Spectrum Analysis of Optical Feedback Self-Mixin...

引用

IEEE International Workshop on Electronic Design, Test and Applications (DELTA)

作者： Xiaojun Zhang Jiangtao Xi Yanguang Yu Joe Chichero School of Electrical Computer & Telecommunications Engineering Faculty of Informatics University of Wollongong Wollongong Australia

The spectrum characteristics of self-mixing signals observed in optical feedback self-mixing interferometry (OFSMI) is studied in this paper. The purpose is to provide guidance for the design of pre-processing techniques for eliminating noise or disturbance. The influence of two important parameters of the OFSMI system on the spectrum, that is, the optical feedback factor and the linewidth enhancement factor, are measured by means of Discrete Fourier transform (DFT). The simulated results show that, at a weak feedback, the OFSMI signals are strictly band limited in nature, with the cut-off frequencies being the vibration frequency and the fringe frequency respectively. Also increasing broadens the bandwidth but has little influence on the bandwidth of the signal. At moderate feedback, the OFSMI signals are still band limited with much higher cut-off frequencies, and there is a considerable spectrum spread over a very wide range in the high frequency end. The presented analysis provides sufficient information for applying signal processing to OFSMI signals such as the filter design.

关键词： Optical feedback Signal analysis Cutoff frequency Discrete Fourier transforms Bandwidth Signal processing Optical interferometry Optical noise Information analysis Information filtering

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Implementation of fast digital watermarking techniques

Implementation of fast digital watermarking techniques

引用

International Conference on computer engineering and Systems

作者： Mohamed A. Mohamed Mohy El-Din A. Abou-Soud Mai S. Diab Communications Engineering Department Faculty of Engineering Mansoura University Egypt Computer Systems Department Faculty of Computers and Informatics Benha University Egypt

In this paper, we investigate the problem of choosing the best domain for embedding watermarks in digital still images. During this paper, eight watermarking techniques were implemented and evaluated. Four techniques were selected to represent different approaches of embedding data in spatial domain, three approaches using discrete cosine transform (DCT) domain, and one approach using discrete wavelet transform domain (DWT) domain. The algorithms were chosen to represent a range of computational complexities and implementation structures. The performance of the selected algorithms was evaluated with respect to many perceptibility parameters.

关键词： Watermarking Image coding Cryptography Robustness Discrete wavelet transforms Wavelet domain Computational complexity PSNR Discrete cosine transforms Multiaccess communication

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An Automatic Elaborate Requirement Specification By Using Hierarchical Text Classification

An Automatic Elaborate Requirement Specification By Using Hi...

引用

International Conference on computer Science and Software engineering

作者： Jantima Polpinij Aditya Ghose Department of Computer Science Faculty of Informatics Mahasarakham University Kantarawichai Mahasarakham Thailand Decision Systems Lab School of Computer Science and Software Engineering Faculty of Informatics University of Wollongong Wollongong Australia

ISBN: (纸本)9781424439027

Ambiguity is a major problem of software errors because much of the requirements specification is written in a natural language format. Therefore, it is hard to identify consistencies because this format is too ambiguous for specification purposes. This paper aims to propose a method for handling requirement specification documents which have a similar content to each other through a hierarchical text classification. The method consists of two main processes of classification: heavy classification and light classification. The heavy classification is to classify the requirement specification documents having similar content together. Meanwhile, light classification is to elaborate specification requirement documents by using the Euclidean distance. Finally, slimming down the number of requirements specification through hierarchical text classification classifying may yield a specification which is easier to understand. That means the proposed method is more effective for reducing and handling in the requirements specification.

关键词： Text categorization computer science Software engineering Euclidean distance Quality assessment informatics computer errors Natural languages Document handling Australia

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Random black hole particle swarm optimization and its application

Random black hole particle swarm optimization and its applic...

引用

International Conference on Neural Networks and Signal Processing

作者： Junqi Zhang Kun Liu Ying Tan Xingui He Languages Informatics Systems and Software Engineering Department Faculty of Computer Science Peking University Beijing China

ISBN: (纸本)9781424423101

This paper introduces a novel particle swarm optimization algorithm based on the concept of black holes in physics, called random black hole particle swarm optimization (RBH-PSO) for the first time. In each dimension of a particle, we randomly generate a black hole located nearest to the best particle of the swarm in current generation and then randomly pull particles of the swarm into the black hole with a probability p. By this mechanism of random black hole, we can give all the particles another interesting direction to converge as well as another chance to fly out of local minima when a premature convergence happens. Several experiments on fifteen benchmark test functions are conducted to demonstrate that the proposed RBH-PSO algorithm is able to speedup the evolution process distinctly and improve the performance of global optimizer greatly. Finally, an actual application of the proposed algorithm to spam detection is conducted then compared to other three current methods.

关键词： Benchmark testing Algorithm design and analysis Particle swarm optimization Optimization Electronic mail Convergence Support vector machines

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Improved robust 𝒟𝒰-stability measures via S-procedure

Improved robust 𝒟𝒰-stability measures via S-procedure

引用

American Control Conference (ACC)

作者： Bilal Sari Olivier Bachelier Driss Mehdi Toufic Al Chaer Languages Informatics Systems and Software Engineering Department Faculty of Computer Science University of Poitiers Poitiers France

In this paper we focus on the notion of robust matrix root-clustering analysis in a union of regions that are possibly disjoint and non symmetric. Indeed this work aims at computing a bound on the size of the uncertainty domain preserving matrix D u -stability. A Linear Fractional Transform (LFT) uncertainty is considered. To reduce conservatism, a new approach, based on some generalized S-procedure, is addressed. In the case where the studied matrices depend afflnely on the uncertain parameters or when the studied matrices are subject to polytopic uncertainty, it is known that recently developed L.M.J conditions are effective to assess the robust performance in a less conservative fashion. This paper further extends the preceding results and propose a unified way to obtain new L.M.J conditions even in the case of rational parameter dependence. Some conservatism induced by some techniques encountered in the literature is here reduced .

关键词： Robustness Uncertainty Lyapunov method Robust control Symmetric matrices Robust stability Control system synthesis Control system analysis Control systems Uncertain systems

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Numerical and symbolic state space realizations of linear systems with algebraic loops

Numerical and symbolic state space realizations of linear sy...

引用

IEEE International Symposium on computer Aided Control System Design (CACSD)

作者： Masanobu Koga Satoru Anan Kentaro Yano Department of Systems Design and Informatics Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan

ISBN: (纸本)9781424422210

This paper proposes a method which gives a state space realization of the linear systems with algebraic loops not only in numerical format but also in symbolic format and guarantees that the order of the system is preserved. The method uses an adjacency matrix in graph theory for the modeling of the control systems and uses the matrix inversion lemma to calculate the inverse of matrix symbolically and to obtain the symbolic state space realizations. We have developed a new software platform for modeling and simulation of control systems using the proposed method.

关键词： Control systems USA Councils

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March Test BDN: A new March Test for dynamic faults

March Test BDN: A new March Test for dynamic faults

引用

IEEE International Conference on Automation, Quality and Testing, Robotics, AQTR

作者： Alberto Bosio Giorgio Di Natale Languages Informatics Systems and Software Engineering Department Faculty of Computer Science Université Montpelher II Montpellier France

High-density components and process scaling lead more and more to the occurrence of new class of dynamic faults, especially in Static Random Access Memories (SRAMs), thus requiring more and more sophisticated test algorithms. Among the different types of algorithms proposed for testing SRAMs, March Tests have proven to be the most performing due to their low complexity, their simplicity and regular structure. Several March Tests for dynamic faults have been published, with different fault coverage. In this paper we propose March BDN, an extended version of the March AB. We will prove that it is able to increase the fault coverage in order to target latest dynamic faults. We show that the proposed March BDN has the highest known fault coverage compared to March Tests with the same complexity.

关键词： Circuit faults Heuristic algorithms Random access memory Decoding Complexity theory Arrays Taxonomy

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A Novel Semantic Video Classification Model

A Novel Semantic Video Classification Model

引用

Workshops on Image Processing Theory, Tools and Applications, IPTA

作者： Wei Ren Maneesha Singh Sameer Singh Faculty of Computer and Information Engineering Peking University Shenzhen China Research School of Informatics Loughborough University UK

In this paper, we propose a novel spatio-temporal video retrieval model to extract spatio-temporal attributes for semantic video category classification using high-level reasoning of video objects and scenes. We also explore the semantic logical inference learning of video attributes based on interpreting camera movements and object spatial constraints, as well the views on temporal continuity of video. We have used Minerva international video benchmark for the analysis of our algorithm.

关键词： Video compression Videoconference Information retrieval Layout Video sequences Image retrieval Indexing Image processing Application software Data mining

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