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Metrics based performance control over text mining tools in bioinformatics 09

Metrics based performance control over text mining tools in ...

引用

international conference on advances in computing, communication and control, ICAC3'09

作者： Manicassamy, Jayanthi Dhavachelvan, P. Department of Computer Science Pondicherry University Pondicherry India

ISBN: (纸本)9781605583518

Bioinformatics is a field of biology merging with few other sciences like information technology and statistics which involves in the discovery of new tools for data analysis and interpretation of accurate result. Some of the areas in which bioinformatics is applicable are in disease identification, drug discovery, DNA sequence analysis and structural analysis. There are various tools that have been developed in text mining, in the area of bioinformatics in various analysis processes like sequence analysis, functional analysis, structural analysis and similarity analysis. Performance is a key factor in utilization of existing tools or in the development of new tools which could be evaluated by means of comparison of feature or by means of evaluating metrics. Metrics based assessment is made on developed products because it qualifies the characteristics of a product like precision, recall, information retrieval. The merit that we are discovering by evaluating the existing products, leads us in the development of new products by avoiding the pitfalls of the existing products. This work describes the standard procedure for evaluating text mining tools in bioinformatics based on (1) features, functionalities and (2) performance metrics. The metrics set that have been used here are involved in the performance evaluation of text mining tools like error rate, ontological improvement are specified with detailed result analysis. The results observed during this evaluation made on the specified tools have made an indication for having a standard development cum evaluation of text mining based bioinformatics tools. Copyright 2009 ACM.

关键词： Bioinformatics

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A model for personalised communications control in pervasive systems

A model for personalised communications control in pervasive...

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IASTED international conference on advances in Computer Science and Engineering, ACSE 2009

作者： Papadopoulou, Elizabeth McBurney, Sarah Williams, M. Howard Heriot-Watt University Riccarton Edinburgh United Kingdom

ISBN: (纸本)9780889867901

As communication systems become more and more complex and integrate an increasing variety of different types of systems and devices, an important aim of pervasive systems is to provide users with more control over the delivery of different forms of communications. Simple forms of user control already exist in some systems, and work is ongoing to develop more sophisticated systems. Daidalos and Persist are two European research projects aimed at developing pervasive systems. In the process one aspect that has been investigated is the user control over communications in a general context-aware pervasive system. This paper outlines a general model developed to describe the processes, which was used as the basis of the implemented system in Daidalos. This model is being studied further in the Persist project.

关键词： communications control Personalisation Pervasive User preferences

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Emerging Challenges for Security, Privacy and Trust 2009

引用

丛书名： IFIP advances in Information and communication Technology

2009年

作者： Dimitris Gritzalis Javier Lopez

ISBN: (数字)9783642012440

ISBN: (纸本)9783642012433

This book constitutes the refereed proceedings of the 24th IFIP TC 11 international Information Security conference, SEC 2009, held in Pafos, Cyprus, in May 2009. The38 revised full papers presented were carefully reviewed and selected from 176 submissions. The papers are organized in topical sections on identification and authentication, threats and attacks, applications of cryptography and information hiding, trusted computing, security policies, validation, verification and evaluation, privacy protection and security assessment, role mining and content protection, security protocols, access control, and internet and Web applications security.

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The RiverFish Approach to Business Process Modeling: Linking Business Steps to control-Flow Patterns

The RiverFish Approach to Business Process Modeling: Linking...

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4th international conference of Collaborative computing: networking, Applications and Worksharing

作者： Zuliane, Devanir Oikawa, Marcio K. Malkowski, Simon Alcazar, Jose Perez Ferreira, Joao Eduardo Univ Sao Paulo Dept Comp Sci Rua Matao 1010 BR-05508090 Sao Paulo Brazil Georgia Inst Technol Ctr Expt Res Comp Syst Atlanta GA 30332 USA

ISBN: (纸本)9783642033537

Despite the recent advances in the area of Business Process Management (BPM), today's business processes have largely been implemented without clearly defined conceptual modeling. This results in growing difficulties for identification, maintenance, and reuse of rules, processes, and control-flow patterns. To mitigate these problems in future implementations, we propose a new approach to business process modeling using conceptual schemas, which represent hierarchies of concepts for rules and processes shared among collaborating information systems. This methodology bridges the gap between conceptual model description and identification of actual control-flow patterns for workflow implementation. We identify modeling guidelines that are characterized by clear phase separation, step-by-step execution, and process building through diagrams and tables. The separation of business process modeling in seven mutually exclusive phases clearly delimits information technology from business expertise. The sequential execution of these phases leads to the step-by-step creation of complex control-flow graphs. The process model is refined through intuitive table and diagram generation in each phase. Not only does the rigorous application of our modeling framework minimize the impact of rule and process changes, but it also facilitates the identification and maintenance of control-flow patterns in BPM-based information system architectures.

关键词： business process management conceptual schema control-flow patterns information systems process modeling

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Quantum mechanical modeling and molecular dynamic simulation of Ruthenium (Ru) polypyridyl complexes to study feasibility of artificial photosynthesis

Quantum mechanical modeling and molecular dynamic simulation...

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ARTCom 2009 - international conference on advances in Recent Technologies in communication and computing

作者： Premkumar, P. Krishnan Namboori, P.K. Sathishkumar, M. Ramachandran, K.I. Gopakumar, Deepa Rajasree, P.M. Computational Engineering and Networking Amrita Vishwa Vidyapeetham University Ettimadai Coimbatore-641105 India

ISBN: (纸本)9780769538457

A photochemical reaction is initiated by a charge separation process in the reaction center (RC) complex. Major research in this regard is to analyze the light driven electron transfer and to study the response of the molecule in which the RC is embedded, stabilizing the charge separation process in photosynthesis. In research related to artificial photosynthesis, modeling and simulation of highly energetic photosensitizers have been always a choice. Ruthenium (II) polypyridyl complexes are widely used in this regard. In this work these complexes have been successfully designed in the computational manner with a quantum mechanical model in the density functional level of theory (DFT) based on the local density approximation energy expression augmented by BLYP corrections using the DND basis set with 'all electron core' treatment option. In the analysis, band energy, electronic population, vibrational frequency, thermodynamic functions and energies of Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO) have been used. Molecular dynamic simulation studies were conducted to characterize the dynamic properties. In the analysis, the 'metal ligand charge transfer transition' (MLCT) in these complexes has been studied in detail. Thermodynamic stability of these complexes has been compared. The π-electron acceptor properties of the tetra cyano ruthenium poly pyridyl complexes has been found to be in the order of bpz (2,2′-bipyrazine)> bptz (3,6-bis-(2-pyridyl)-1,2,4,5-tetrazine) > dpp (2,3-bis(2′-pyridyl) pyrazine) > bpy (2,2′-pyridine). The possibility for these compounds to be used as photosynthetic targets will also follow the same order. © 2009 IEEE.

关键词： Photosensitizers

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An analysis of service disruption time for TCP applications using end-to-end mobility management protocols 09

An analysis of service disruption time for TCP applications ...

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7th international conference on advances in Mobile computing and Multimedia, MoMM2009

作者： Shah, Peer Azmat Yousaf, Muhammad Qayyum, Amir Malik, Shahzad A. M. A. Jinnah University Islamabad Pakistan Islamabad Pakistan Department of Electrical Engineering COMSATS Institute of Information Technology Islamabad Pakistan

ISBN: (纸本)9781605586595

Whenever a mobile node moves across different networks, service disruption occurs thus making mobility management a key issue. In order to ensure the continuity of TCP session between communicating nodes, a number of protocols have been proposed so far. These protocols may be classified into two main categories: end-to-end and network-centric. As end-to-end mobility management protocols do not require additional entities in the network and no additional deployment cost is involved, that makes deployment of these protocols network operator independent. Due to these reasons end-to-end mobility management protocols are gaining popularity. However, performance evaluation of these end-to-end protocols on the basis of service disruption time has not been discussed so far. This paper analyzes these protocols on the basis of service disruption time using mathematical modeling techniques of performance evaluation. Results show that service disruption time of protocols that allow simultaneous communication through multiple interfaces is always smaller than the protocols that do not allow simultaneous communication. Copyright 2009 ACM.

关键词： Transmission control protocol

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Mathematical Modeling for Evaluation of Quality of Service Parameters in Next Generation Cellular Wireless Networks

Mathematical Modeling for Evaluation of Quality of Service P...

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international conference on advances in computing, control, & Telecommunication Technologies (ACT)

作者： Raj Kumar Samanta Partha Bhattacharjee Gautam Sanyal Department of CSE National Institute of Technology Durgapur West Bengal India Central Mechanical Engineering Research Institute Durgapur West Bengal India

In this paper, a mathematical model has been developed for cellular wireless network with Gamma inter-arrivals and general call holding times. Measurement based studies have shown that Poisson assumption averages out the traffic characteristics to a single parameter (i.e. average rate) which does not represent the real dynamics involved in the process. The actual traffic pattern in the next generation cellular wireless networks is more complex for the presence of multiple services. This work evaluates the QoS parameters from a more pragmatic model for future cellular wireless networks.

关键词： Mathematical model Quality of service Next generation networking Cellular networks Wireless networks Telecommunication traffic Traffic control communication system traffic control Mobile communication IP networks

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A traffic cache for structure peer-to-peer networks

A traffic cache for structure peer-to-peer networks

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3rd international conference on Genetic and Evolutionary computing, WGEC 2009

作者： Lin, Kuisheng Zhou, Ya Huang, Guimin School of Computer and Control Guilin University of Electronic Technology Guilin China School of Informationand Communication Guilin University of Electronic Technology Guilin China

ISBN: (纸本)9780769538990

The rise in peer-to-peer (P2P) networking has been tremendous in last several years;a large amount of network bandwidth backbone is consumed by P2P traffic. Although many methods have been proposed to manage P2P traffic, these methods require a lot of knowledge about the workloads and are generally difficult to implement. In this paper, we propose a mechanism of traffic cache based on P2P networks and simply modify LRU algorithm to improve cache hit ratio. A series of simulation experiments on the OMNeT++ show that the mechanism can greatly increase the proportion of local area network traffic while P2P downloads are done and effectively reduce the cross-border traffic for having a good way to reduce backbone load. © 2009 IEEE.

关键词： Peer to peer networks

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Berkeley Wavelet Transform Based Image Watermarking

Berkeley Wavelet Transform Based Image Watermarking

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international conference on advances in Recent Technologies in communication and computing, ARTCom

作者： Remya Ravindran P. K.P. Soman Comput. Eng. & Networking Amrita Vishwa Vidyapeetham Coimbatore India

In this paper Berkeley wavelet transform (BWT) based watermarking is described. BWT is a two-dimensional triadic wavelet transform. In order to achieve copyright protection, the proposed scheme embeds watermark into h... 详细信息

关键词： Wavelet transforms Watermarking Computer networks Robustness Data mining Signal processing communications technology Copyright protection Pixel Frequency

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Sink-Anonymity Mobility control in Wireless Sensor Networks

Sink-Anonymity Mobility Control in Wireless Sensor Networks

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IEEE international conference on Wireless and Mobile computing, networking And communications (WiMob)

作者： Qijun Gu Xiao Chen Zhen Jiang Jie Wu Department of Computer Science Texas State University San Marcos San Marcos TX USA Department of Computer Science West Chester University West Chester PA USA Department of Computer Science and Engineering Florida Atlantic University Boca Raton FL USA

As the technology of mobile sensors advances, mobility control becomes a viable option that can be utilized to minimize energy consumption in wireless sensor networks (WSNs). A mobility control protocol re-deploys mobile sensors to optimal positions to minimize energy consumption for communication. We identify a unique privacy issue in mobility control protocols that discloses the physical location of the sink node to intruders in WSNs. To protect the sink node, we propose a new privacy preserving scheme to secure mobility control protocols against attacks that locate and sabotage the sink node. The privacy preserving scheme obfuscates the sink location with dummy sink nodes. Analysis shows that the scheme can effectively hide the sink location via anonymity. The scheme can also be easily integrated into current mobility control protocols without raising much additional overhead. The performance simulation and analysis show that, with the sink node well-protected, mobility control protocols achieve similar performance as original protocols.

关键词： Wireless sensor networks Protocols communication system control Privacy Energy consumption Optimal control Mobile communication Protection Analytical models Performance analysis

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