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IEEE International Conference on Multimedia Computing and Systems (ICMCS)

作者： Hind Tribak Blanca L. Delgado-Márquez P. Rojas O. Valenzuela H. Pomares I. Rojas 1.-Dpt. of Computer Architecture and Computer Technology University of Granada Spain Department International andSpanish Economics Faculty of Economics and Business University of Granada Spain 3.- Dpt International and Spanish Economics Faculty of Economics Business 4.-ETSICCP University of Granada Spain Department of Applied Mathematics University of Granada Spain 2.-Dpt. of Applied Mathematics

Intrusion Detection System (IDS) which are increasingly a key part of system defense are used to identify abnormal activities in a computer system. In general, the traditional IDS relies on the extensive knowledge of security experts, in particular, on their familiarity with the computer system to be protected. To reduce this dependence, various data-mining and machine learning techniques have been used in the literature. The experiments and evaluations of the proposed intrusion detection system are performed with the NSL-KDD intrusion detection dataset. We will apply different learning algorithms on NSL-KDD data set, to recognize between normal and attack connections and compare their performing in different scenarios- discretization, features selections and algorithm method for classification- using a powerful statistical analysis: ANOVA. In this study, both the accuracy of the configuration of different system and methodologies used, and also the computational time and complexity of the methodologies are analyzed.

关键词： Data mining Security Hidden Markov models Probes Ions Marine animals Analysis of variance

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A fuzzy framework for Semantic Web Service description, matchmaking, ranking and selection

A fuzzy framework for Semantic Web Service description, matc...

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2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011, Jointly with the 2011 7th International Conference on Natural Computation, ICNC'11

作者： Sharifi, Ehsan Moghadam, Reza A. Bobillo, Fernando Ebadzadeh, Mohamad M. Dpt. of Computer Science Payam Noor University Tehran Iran Dpt. of Computer Science and S.E. University of Zaragoza Spain Dpt. of Computer Science Amirkabir University of Technology Tehran Iran

ISBN: (纸本)9781612841816

Semantic Web Services (SWSs) provide a semantic representation of web services that provides a well-defined semantics in order to make them computer-interpretable, use-apparent, and agent-ready. In the last years it is becoming more and more accepted the idea that current Semantic Web technologies are not appropriate to deal with imprecise and vague knowledge, inherent to several real world domains. This paper proposes a fuzzy logic-based framework that makes service description, discovery and selection more flexible, and that includes support for non-functional properties. In particular, we extend OWL-S services by including a fuzzy domain ontology, which improves the definition of functional properties, and a fuzzy Quality of Service ontology, which improves the definition of non-functional properties. We also show how to enhance the tasks of SWS selection and ranking by means of fuzzy reasoning. © 2011 IEEE.

关键词： Web services

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A Fuzzy Framework for Semantic Web Service Description, Matchmaking, Ranking and Selection

A Fuzzy Framework for Semantic Web Service Description, Matc...

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2011 Eighth International Conference on Fuzzy System and Knowledge Discovery(第八届模糊系统与知识发现国际会议 FSKD 2011)

作者： Reza A. Moghadam Ehsan Sharifi Fernando Bobillo Mohamad M. Ebadzadeh Dpt. of Computer Science Payam noor University Tehran Iran Dpt. of Computer Science and S.E. University of Zaragoza Spain Dpt. of Computer Science Amirkabir University of Technology Tehran Iran

Semantic Web Services (SWSs) provide a semantic representation of web services that provides a welldefined semantics in order to make them computerinterpretable, use-apparent, and agent-ready. In the last years it is becoming more and more accepted the idea that current Semantic Web technologies are not appropriate to deal with imprecise and vague knowledge, inherent to several real world domains. This paper proposes a fuzzy logic-based framework that makes service description, discovery and selection more flexible, and that includes support for non-functional properties. In particular, we extend OWL-S services by including a fuzzy domain ontology, which improves the definition of functional properties, and a fuzzy Quality of Service ontology, which improves the definition of non-functional properties. We also show how to enhance the tasks of SWS selection and ranking by means of fuzzy reasoning.

关键词： Ontologies Quality of service OWL Web services Semantics

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Amberate: A framework for automated vulnerability scanners for web applications

Computer Software

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computer Software 2011年第4期28卷 175-195页

作者： Kosuga, Yuji Kono, Kenji Dept. of Information and Computer Science Keio University Japan Dpt. of Information and Computer Science Keio University Japan CREST Core Research for Evolutional Science and Technology Japan Science and Technology Agency Japan

Many new attacks targeting web applications have been showing up one after another. However, when implementing a new vulnerability detection technique, the existing vulnerability scanners impose a burdensome task of modifying source code and installing many auxiliary functions. In this paper, we introduce the design of Amberate;a web vulnerability scanner that alleviates the burden of them and makes it easier to develop a new vulnerability detection technique.

关键词： Scanning

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Multi-objective evolutionary algorithms used in greenhouse planning for recycling biomass into energy

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作者： Márquez, A.L. Gil, C. Manzano-Agugliaro, F. Montoya, F.G. Fernández, A. Baños, R. Dpt. of Computer Architecture and Electronics University of Almería Spain Dpt. of Rural Engineering University of Almería Spain

ISBN: (纸本)9783642148828

Advanced parallel Multi-Objective Evolutionary Algorithms (MOEA) have been used in order to solve a wide array of problems, including the planning of greenhouse crops. This paper shows the application of MOEA using the Island Parallel Model to solve a problem involving greenhouse crop planning in order to maximize profits and the production of biomass while reducing economic risks. The interest in maximizing biomass waste lies in the possibility of recycling it into heat and energy. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Greenhouses

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A hybrid parallel approach for 3D reconstruction of cellular specimens

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作者： Da Silva, M. Laura Roca-Piera, Javier Fernández, José Jesús Dpt. Computer Architecture University of Almería Almería 04120 Spain Madrid 28049 Spain

ISBN: (纸本)9783642148828

Electron tomography combines the acquisition of projection images through electronic microscope and techniques of tomographic reconstruction to allow structure determination of complex biological specimens. This kind of applications requires an extensive use of computational resources and considerable processing time because high resolution 3D reconstructions are demanded. The new tendency of high performance computing heads for hierarchical computational systems, where several shared memory nodes with multi-core CPUs are connected. In this work, we propose a hybrid parallel implementation for tomographic reconstruction of cellular specimens. Our results show that the balanced and adaptative algorithm allows an ideal speedup factor when large datasets are used. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Parallel programming

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A personalized audio server using MPEG-7 and MPEG-21 standards

A personalized audio server using MPEG-7 and MPEG-21 standar...

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5th International Workshop on Semantic Media Adaptation and Personalization, SMAP 2010

作者： Skondras, Emmanouil Michalas, Angelos Louta, Malamati Anagnostopoulos, Ioannis Dpt. of Informatics and Computer Technology Technological Educational Institute of Western Macedonia 52100 Kastoria Greece Dpt. of Informatics and Telecommunications Engineering University of Western Macedonia 50100 Kozani Greece Dpt. of Computer Science and Biomedical Informatics University of Central Greece 35100 Lamia Greece

ISBN: (纸本)9781424486007

This paper presents a semantic model which delivers personalized audio information. The personalization process is automated and decentralized. The metadata which support personalization are separated in two categories: the metadata describing user preferences stored at each user and the resource adaptation metadata stored at the server. The multimedia models MPEG-21 and MPEG-7 are used to describe metadata information. The Web Ontology Language (OWL) language is used to produce and manipulate the relative ontological descriptions. © 2010 IEEE. © 2010 IEEE.

关键词： Metadata

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A new memetic algorithm for the two-dimensional bin-packing problem with rotations

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作者： Fernández, A. Gil, C. Márquez, A.L. Baños, R. Montoya, M.G. Alcayde, A. Dpt. Computer Architecture and Electronics University of Almería Carretera de Sacramento s/n Cañada San Urbano Almería 04120 Spain

ISBN: (纸本)9783642148828

The two-dimensional bin-packing problem (2D-BPP) with rotations is an important optimization problem which has a large number of practical applications. It consists of the non-overlapping placement of a set of rectangular pieces in the lowest number of bins of a homogenous size, with the edges of these pieces always parallel to the sides of bins, and with free 90 degrees rotation. A large number of methods have been proposed to solve this problem, including heuristic and meta-heuristic approaches. This paper presents a new memetic algorithm to solve the 2D-BPP that incorporates some operators specially designed for this problem. The performance of this memetic algorithm is compared with two other heuristics previously proposed by other authors in ten classes of frequently used benchmark problems. It is observed that, in some cases, the method here proposed is able to equal or even outperform to the results of the other two heuristics in most test problems. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Problem solving

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A key distribution scheme for live streaming multi-tree overlays

Advances in Intelligent and Soft Computing

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Advances in Intelligent and Soft Computing 2010年 85卷 223-230页

作者： Naranjo, Juan Álvaro Muñoz Ramos, Juan Antonio López Casado, Leocadio González Dpt. of Computer Architecture and Electronics University of Almería Spain Dpt. of Algebra and Mathematical Analysis University of Almería Spain

ISBN: (纸本)9783642166259

Multicast peer-to-peer overlays are being progressively adopted in commercial platforms in spite of some childhood problems. One of the major issues that need further development is key distribution and conditional access. This is a crucial matter for this kind of networks in order to gain wide commercial acceptance, especially among content producers. This paper presents a secure, fault-tolerant, efficient key distribution scheme for multi-tree overlays that allows for quality-of-service gradation and introduces very little bandwidth overhead. It uses secret sharing techniques and a novel multicast mechanism which is described. No major changes are needed in the content distribution network, since the scheme fits it gracefully. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Quality of service

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Improving the quality of Ring Oscillator PUFs on FPGAs

Improving the quality of Ring Oscillator PUFs on FPGAs

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5th Workshop on Embedded Systems Security, WESS '10

作者： Merli, Dominik Stumpf, Frederic Eckert, Claudia Fraunhofer Institute for Secure Information Technology Munich Germany Dpt. of Computer Science Technische Universität München Munich Germany

ISBN: (纸本)9781450300780

Physical Unclonable Functions (PUFs) based on Ring Oscillators (ROs) are a promising primitive for FPGA security. However, the quality of their implementation depends on several design parameters. In this paper, we show that ring oscillator frequencies strongly depend on surrounding logic. Based on these findings, we propose a strategy for improving the quality of RO PUF designs by placing and comparing ROs in a chain-like structure. We also show that an increased RO runtime and RO disabling has a clear positive effect on the quality of a RO PUF. We implemented a RO PUF key generation system on an FPGA using our design strategy. Our results clearly indicate that our proposed design strategy can significantly improve the quality of a RO PUF implementation. © 2010 ACM.

关键词： Field programmable gate arrays (FPGA)

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