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A Method of Gene-Function Annotation Based on Variable Precision Rough Sets

Journal of Bionic engineering 2007年第3期4卷 177-184页

作者： Zhi-li Pei Xiao-hu Shi Meng Niu Xu-ning Tang Li-sha Liu Ying Kong Yan-chun Liang College of Computer Science and Technology Jilin University Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education Changchun 130012 P. R. China College of Mathematics and Computer Science Inner Mongolia University for NationalitiesTongliao 028043 P. R. China College of Software Jilin University Changchun 130012 P. R. China Department of Biochemistry and Molecular Biology Institution of Glycobiology Dalian Medical University Dalian 116027 P. R. China

It is very important in the field of bioinformatics to apply computer to perform the function annotation for new sequenced bio-sequences. Based on GO database and BLAST program, a novel method for the function annotation of new biological sequences is presented by using the variable-precision rough set theory. The proposed method is applied to the real data in GO database to examine its effectiveness. Numerical results show that the proposed method has better precision, recall-rate and harmonic mean value compared with existing methods.

关键词： gene function annotation variable precision rough set GO BLAST

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Fuzzy Control For Improving Energy Management Within Indoor Building Environments

Fuzzy Control For Improving Energy Management Within Indoor ...

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Electronics, Robotics and Automotive Mechanics Conference

作者： Enrique Sierra Alejandro Hossian Paola Britos Dario Rodriguez Ramon Garcia-Martinez Electrotecnic Department School of Engineering National University of Comahue Argentina Software & Knowledge Engineering Center Graduate School ITBA Intelligent Systems Laboratory School of Engineering University of Buenos Aires Argentina

Research on energy efficiency in buildings has proved that the design and even the sophisticated facilities such as building energy management systems (BEMS), aiming to improve the indoor environmental conditions while minimizing the energy needs, are not sufficient enough due to users interference. Users are a dynamic part of the building, therefore they should be taken into account in the control strategy. Latest trends in designing intelligent building energy management systems (IBEMS) integrate a man machine interface that could store the user's preferences and adapt the control strategy accordingly. The objective of the present paper is to present the advantages of the fuzzy control techniques together with a man machine interface based on a smart card terminal in satisfying the user preferences. A fuzzy controller is developed and the minimization of energy consumption is achieved by the use of a suitable cost function for the whole system. The overall control system including the cost function has been modeled and tested by using the software tool MATLAB/SIMULINK.

关键词： Fuzzy control Energy management Buildings Man machine systems Control systems Cost function Energy efficiency Interference Intelligent structures Machine intelligence

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A Multi-agent Intelligent Tutoring System for Learning Computer Programming

A Multi-agent Intelligent Tutoring System for Learning Compu...

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Electronics, Robotics and Automotive Mechanics Conference

作者： Enrique Sierra Alejandro Hossian Paola Britos Dario Rodriguez Ramon Garcia-Martinez Electrotecnic Department School of Engineering National University of Comahue Argentina Software & Knowledge Engineering Center Graduate School. ITBA Intelligent Systems Laboratory School of Engineering University of Buenos Aires Argentina

In this paper, we consider a multi-agent intelligent tutoring system for the learning of computer programming. It provides a multiple domain learning environment for language learners. The aim of the system is to teach the target domain by using a supporting domain(s) to reinforce the learning of it. The system is strongly built upon a cognitive theory that affirms there are successful knowledge transfers in the learning of knowledge-rich domains like computer programming. To implement it, we chose a multi-agent system because of the features of agents, which provide flexibility for future expansion.

关键词： Intelligent systems Programming Computer languages Multiagent systems knowledge transfer knowledge engineering Laboratories Information processing Java Humans

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Information flow security for interactive systems

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International Conference on Embedded and Ubiquitous Computing, EUC 2005

作者： Jin, Ying Liu, Lei Zheng, Xiao-Juan Key Laboratory of Symbolic Computation and Knowledge Engineering Jilin University Ministry of Education of P.R. China Changchun 130012 China Software College Northeast Normal University Changchun 130117 China

ISBN: (纸本)3540308075

The use of the Internet raises serious behavioural issues regarding, for example, security and the interaction among agents that may travel across links. Model-building such interactive systems is one of the biggest current challenges in computer science. A general model, action calculi, has been introduced by Robin Milner to unify the various emerging disciplines of interactive behaviour. In this paper action calculi is used as an abstraction of interactive systems and information flow security properties of such systems are studied. At first an information flow analysis for static action calculi is presented to predict how data will flow both along and inside actions and its correctness is proved;Next basing on the result of the analysis information security properties of both static and dynamic action calculi are discussed;Finally a general relationship are established between the static notation of information flow security and the dynamic one. © IFIP International Federation for Information Processing 2005.

关键词： Interactive computer systems

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An algorithm for reduct of Boolean functions based on primes

An algorithm for reduct of Boolean functions based on primes

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International Conference on Electrical engineering, Computing Science and Automatic Control (CCE)

作者： Xiongfei Li Hui Liu Qiangqiang Wang Guilin Zhang Key Laboratory of Symbolic Computation & Knowledge Engineering Jilin University Changchun China State Key Laboratory for Novel Software Technology Nanjing University Najing China

The reduct of Boolean functions is widely used in many applications, for example: digital circuits. In this paper, we present an approach, which is based on primes, to representing the Boolean system. We present an algorithm for reduct of Boolean functions based on primes, and the cost of the algorithm is analyzed to indicate that the algorithm is efficient.

关键词： Boolean functions Data structures Arithmetic Digital circuits Laboratories Algorithm design and analysis Artificial intelligence knowledge engineering Application software Cost function

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AN IMPROVED BICLUSTERING ALGORITHM AND ITS APPLICATION TO GENE EXPRESSION SPECTRUM ANALYSIS

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Genomics, Proteomics & Bioinformatics 2005年第3期3卷 189-193页

作者： Hua Qu Liu-Pu Wang Yan-Chun Liang Chun-Guo Wu College of Software Key Laboratory of Symbol Computation and Knowledge Engineering of the Ministry of Education Jilin University Changchun 130012 China Guangzhou Institute of China Telecom Guangzhou 510630 China College of Computer Science and Technology Key Laboratory of Symbol Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun 130012 China Key Laboratory of Information Science and Engineering of the Ministry of Railway/Key Laboratory of Advanced Information Science and Network Technology of Beijing Beijing Jiaotong University Beijing 100044 China.

Cheng and Church algorithm is an important approach in biclustering algorithms. In this paper, the process of the extended space in the second stage of Cheng and Church algorithm is improved and the selections of two important parameters are discussed. The results of the improved algorithm used in the gene expression spectrum analysis show that, compared with Cheng and Church algorithm, the quality of clustering results is enhanced obviously, the mining expression models are better, and the data possess a strong consistency with fluctuation on the condition while the computational time does not increase significantly.

关键词： biclustering algorithm gene expression pedigree analysis Cheng and Church algorithm

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A name-matching algorithm for supporting ontology enrichment

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3rd Hellenic Conference on Artificial Intelligence, SETN 2004

作者： Valarakos, Alexandros G. Paliouras, Georgios Karkaletsis, Vangelis Vouros, George Software and Knowledge Engineering Laboratory Institute of Informatics and Telecommunications National Centre for Scientific Research ‘Demokritos’ 153 10 Ag Paraskevi Athens Greece Department of Information and Telecommunication Systems Engineering School of Sciences University of the Aegean Karlovassi Samos83200 Greece

ISBN: (纸本)3540219374

Ontologies are widely used for capturing and organizing knowledge of a particular domain of interest. This knowledge is usually evolvable and therefore an ontology maintenance process is required. In the context of ontology maintenance we tackle the problem that arises when an instance/individual is written differently (grammatically, orthographically, lexicographically), while representing the same entity/ concept. This type of knowledge is captured into a semantic relationship and constitutes valuable information for many intelligent methods and systems. We enrich a domain ontology with instances that participate in this type of relationship, using a novel name matching method based on machine learning. We also show how the proposed method can support the discovery of new entities/concepts to be added to the ontology. Finally, we present experimental results for the enrichment of an ontology used in the multi-lingual information integration project CROSSMARC. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Ontology

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Enhancing ontological knowledge through ontology population and enrichment 1

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14th International Conference EKAW 2004: engineering knowledge in the Age of the Semantic Web

作者： Valarakos, Alexandros G. Paliouras, Georgios Karkaletsis, Vangelis Vouros, George Software and Knowledge Engineering Laboratory Institute of Informatics and Telecommunications National Centre for Scientific Research Demokritos 153 10 Ag. Paraskevi Athens Greece Department of Information and Telecommunication Systems Engineering School of Sciences University of the Aegean 83200 Karlovassi Samos Greece

ISBN: (数字)9783540302025

ISBN: (纸本)9783540233404

Ontologies are widely used for capturing and organizing knowledge of a particular domain of interest. This knowledge is usually evolvable and therefore an ontology maintenance process is required to keep the ontological knowledge up-to-date. We proposed an incremental ontology maintenance methodology which exploits ontology population and enrichment methods to enhance the knowledge captured by the instances of the ontology and their various lexicalizations. Furthermore, we employ ontology learning techniques to alleviate as much as possible the intervention of human into the proposed methodology. We conducted experiments using the CROSSMARC ontology as a case study evaluating the methodology and its partial methods. The methodology performed well enhancing the ontological knowledge to 96.5% from only 50%. © Springer-Verlag Berlin Heidelberg 2004.

关键词： knowledge engineering

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Text area identification in web images

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3rd Hellenic Conference on Artificial Intelligence, SETN 2004

作者： Perantonis, Stavros J. Gatos, Basilios Maragos, Vassilios Karkaletsis, Vangelis Petasis, George Computational Intelligence Laboratory Institute of Informatics and Telecommunications National Research Center 'Demokritos' Athens153 10 Greece Software and Knowledge Engineering Institute of Informatics and Telecommunications National Research Center 'Demokritos' Athens153 10 Greece Department of Computer Science Technological Educational Institution of Athens Egaleo122 10 Greece

ISBN: (纸本)3540219374

With the explosive growth of the World Wide Web, millions of documents are published and accessed on-line. Statistics show that a significant part of Web text information is encoded in Web images. Since Web images have special characteristics that sometimes distinguish them from other types of images, commercial OCR products often fail to recognize Web images due to their special characteristics. This paper proposes a novel Web image processing algorithm that aims to locate text areas and prepare them for OCR procedure with better results. Our methodology for text area identification has been fully integrated with an OCR engine and with an Information Extraction system. We present quantitative results for the performance of the OCR engine as well as qualitative results concerning its effects to the Information Extraction system. Experimental results obtained from a large corpus of Web images, demonstrate the efficiency of our methodology. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Image processing

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A Greek morphological lexicon and its exploitation by natural language processing applications

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8th Panhellenic Conference on Informatics, PCI 2001

作者： Petasis, Georgios Karkaletsis, Vangelis Farmakiotou, Dimitra Androutsopoulos, Ion Spyropoulo, Constantine D. Software and Knowledge Engineering Laboratory Institute of Informatics and Telecommunications National Centre for Scientific Research ‘Demokritos’ Aghia Paraskevi Athens153 10 Greece

ISBN: (纸本)9783540075448

This paper presents a large-scale Greek morphological lexicon, developed at the software & knowledge engineering laboratory (SKEL) of NCSR "Demokritos". The paper describes the lexicon architecture and the procedure to develop and update it. The morphological lexicon was used to develop a lemmatiser and a morphological analyser that were exploited in various natural language processing applications for Greek. The paper presents these applications (controlled language checker, information extraction, information filtering) and discusses further research issues and how we plan to address them. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Information filtering

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