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作者： Urquiza, J.M. Rojas, I. Pomares, H. Herrera, L.J. Florido, J.P. Ortuño, F. Dept. of Computer Architecture and Computer Technology University of Granada 18071 Spain

ISBN: (纸本)9783642199134

In current Proteomics, prediction of protein-protein interactions (PPI) is a crucial aim as these interactions take part in most essential biological processes. In this paper, we propose a new approach to PPI dataset processing based on the extraction information from well-known databases and the application of data mining techniques. This approach will provide very accurate Support Vector Machine models, trained using high-confidence positive and negative examples. Finally, our proposed model has been validated using experimental, computational and literature-collected datasets. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Proteins

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2012年 7378 LNCS卷 V-VI页

作者： Perales, F.J. Fisher, R. Moeslund, T.B. UIB - Universitat de Les Illes Balears Dept. of Computer Science and Mathematics C/ Valldemossa km 7.5 07122 Palma de Mallorca Spain University of Edinburgh School of Informatics 1.26 Informatics Forum 10 Crichton St. Edinburgh EH8 9AB United Kingdom Aalborg University Dept. for Architecture Design and Media Technology Niels Jernes Vej 14 9220 Aalborg East Denmark

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Nonlinear adaptive model predictive control for ship path-following using parametric neighbouring extremal approach 11

Nonlinear adaptive model predictive control for ship path-fo...

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11th International Conference on Fast Sea Transportation, FAST 2011

作者： Gao, Lingfeng Ghaemi, Reza Sun, Jing Dept. of Electrical Engineering and Computer Science University of Michigan Ann ArborMI United States Dept. of Mechanical Engineering Massachusetts Institute of Technology CambridgeMA United States Dept. of Naval Architecture and Marine Engineering University of Michigan Ann ArborMI United States

ISBN: (纸本)9780985066000

This paper considers the ship path following problem with state and input constraints. The control problem associated with path following is formulated as a Model Predictive Control (MPC) with adjustable parameters. The Parametric Neighbouring Extremal (PNE) approach is applied to obtain a closed form solution. The algorithm is presented and computational details associated with numerical implementation are addressed. The effectiveness of the proposed control scheme is demonstrated through simulations using a detailed nonlinear ship model for several different scenarios. © 2011 American Society of Naval Engineers.

关键词： Model predictive control

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Explaining how intelligent control has improved the way we live: A survey on the use of Fuzzy Logic Controllers in daily human life

Explaining how intelligent control has improved the way we l...

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International Conference on Multimedia Computing and Systems

作者： Lasri, R. Rojas, I. Pomares, H. Sadouq, Z. Dept. of Computer Architecture and Computer Technology E.T.S. Ing. Informática and Telecomunicación Univ. of Granada Spain Information and Telecommunication Systems Laboratory Abdelmalek Essaadi University Faculty of Science Tetuan Morocco

ISBN: (纸本)9781612847306

This paper focuses on the extensive use of Fuzzy Logic Controllers (FLCS) in various human applications, showing the great contribution added to intelligent control. Overall, this survey covers a broad selection of examples that demonstrates the improvements in control processes and the important role played by Fuzzy Logic Controllers (FLCS) in various fields of human life. © 2011 IEEE.

关键词： Intelligent control

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JVM virtual method invoking optimization based on CAM table

JVM virtual method invoking optimization based on CAM table

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IEEE International Conference on Networking, architecture and Storage

作者： Cai, Songsong Yang, Yongqiang Lin, Chuanwen Liu, Qi Key Laboratory of Computer System and Architecture Chinese Academy of Sciences Beijing China Institute of Computing Technology Chinese Academy of Sciences Beijing China Graduate University of Chinese Academy of Sciences Beijing China Dept. of Computer Science and Technology University of Science and Technology of China Hefei China Loongson Technology Corporation Limited Beijing China

ISBN: (纸本)9780769545097

In Java programs, it needs to use the information of the method type to resolve the virtual method dynamically, which restricts the performance greatly. Currently, the solution is mainly the technique of inline caching, which can be divided into two categories: monomorphic inline caching and polymorphic inline caching. Because of the simple implementation of monomorphic inline caching, it is more commonly used, but it cannot resolve the problem of frequently seeing different types of objects at one call site. Although polymorphic inline caching can solve this problem, it is costly. This paper presents the CAM hardware table, proposes a virtual method invoking mechanism based on software and hardware co-design. It solves the problem of frequently seeing different types of objects at one call site, and does not introduce additional overhead. The experimental evaluation shows that it improves the cached hit rate from 13.3% to 76.4% and improves 16.2% performance of the virtual test;it improves the performance of SPECjvm98 by 6.4% on average. © 2011 IEEE.

关键词： Virtual reality

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Histograms for fuzzy color spaces

Advances in Intelligent and Soft Computing

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Advances in Intelligent and Soft Computing 2011年 107卷 339-350页

作者： Chamorro-Martínez, J. Sánchez, D. Soto-Hidalgo, J.M. Martínez-Jiménez, P. Dept. Computer Science and A.I. University of Granada Spain European Centre for Soft Computing Mieres Spain Department of Computer Architecture Electronics and Electronic Technology University of Córdoba Spain

ISBN: (纸本)9783642240003

In this paper we introduce two kinds of fuzzy histograms on the basis of fuzzy colors in a fuzzy color space and the notion of gradual number by Dubois and Prade. Fuzzy color spaces are a collection of fuzzy sets providing a suitable, conceptual quantization with soft boundaries of crisp color spaces. Gradual numbers assign numbers to values of a relevance scale, typically [0,1]. Contrary to convex fuzzy subsets of numbers (called fuzzy numbers, but corresponding to fuzzy intervals as an assignment of intervals to values of [0,1]), they provide a more precise representation of the cardinality of a fuzzy set. Histograms based on gradual numbers are particularly well-suited for serving as input to another process. On the contrary, they are not the best choice when showing the information to a human user. For this second case, linguistic labels represented by fuzzy numbers are a better alternative, so we define linguistic histograms as an assignment of linguistic labels to each fuzzy color. We provide a way to calculate linguistic histograms based on the compatibility between gradual numbers and linguistic labels. We illustrate our proposals with some examples. © 2011 Springer-Verlag Berlin Heidelberg.

关键词： Linguistics

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Evolution of XPath lists for document data selection

Evolution of XPath lists for document data selection

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11th International Conference on Parallel Problem Solving from Nature, PPSN 2010

作者： García-Sánchez, Pablo Guervós, Juan J. Merelo Castillo, Pedro Ángel González, Jesús Laredo, Juan L. Jiménez García, Antonio M. Mora Arenas, Maria I. García Dept. of Computer Architecture and Technology University of Granada Spain

ISBN: (纸本)3642158706

XML has became a standard for structured data, and very often transformations from one specific format to another are needed. XSLT stylesheets are programs designed for this purpose, and they use XPath expressions to select sets of nodes within the document. In this paper a new version of an evolutionary algorithm that creates XSLT from examples is presented, improving on previously obtained results by testing a new individual representation with a new set of operators, based mainly on evolution of XPaths with a fixed XSLT program structure. The experiments show that this new representation, and a lower set of operators, yield better results in less generations that in our previous version. © 2010 Springer-Verlag.

关键词： Software testing

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Building blocks for spikes signals processing

Building blocks for spikes signals processing

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2010 6th IEEE World Congress on Computational Intelligence, WCCI 2010 - 2010 International Joint Conference on Neural Networks, IJCNN 2010

作者： Jimenez-Fernandez, A. Linares-Barranco, A. Paz-Vicente, R. Jiménez, G. Civit, A. Dept. of Computer Architecture and Technology University of Seville Seville Spain

ISBN: (纸本)9781424469178

Neuromorphic engineers study models and implementations of systems that mimic neurons behavior in the brain. Neuro-inspired systems commonly use spikes to represent information. This representation has several advantages: its robustness to noise thanks to repetition, its continuous and analog information representation using digital pulses, its capacity of pre-processing during transmission time, ..., Furthermore, spikes is an efficient way, found by nature, to codify, transmit and process information. In this paper we propose, design, and analyze neuro-inspired building blocks that can perform spike-based analog filters used in signal processing. We present a VHDL implementation for FPGA. Presented building blocks take advantages of the spike rate coded representation to perform a massively parallel processing without complex hardware units, like floating point arithmetic units, or a large memory. Those low requirements of hardware allow the integration of a high number of blocks inside a FPGA, allowing to process fully in parallel several spikes coded signals. © 2010 IEEE.

关键词： Field programmable gate arrays (FPGA)

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Migrating individuals and probabilistic models on dedas: A comparison on continuous functions

Migrating individuals and probabilistic models on dedas: A c...

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10th IASTED International Conference on Artificial Intelligence and Applications, AIA 2010

作者： Muelas, Santiago Mendiburu, Alexander LaTorre, Antonio Peña, José-María Dept. of Computer Systems Architecture and Technology Universidad Politécnica de Madrid Spain Intelligent Systems Group Dept. of Computer Architecture and Technology University of the Basque Country Spain

ISBN: (纸本)9780889868182

One of the most promising areas in which probabilistic graphical models have shown an incipient activity is the field of heuristic optimization and, in particular, in the Estimation of Distribution Algorithms (EDAs). EDAs constitute a well-known family of Evolutionary Computation techniques, similar to Genetic Algorithms. Due to their inherent parallelism, different research lines have been studied trying to improve EDAs from the point of view of execution time and/or accuracy. Among these proposals, we focus on the so-called island-based models. This approach defines several islands (EDA instances) running independently and exchanging information with a given frequency. The information sent by the islands can be a set of individuals or a probabilistic model. This paper presents a comparative study of both information exchanging techniques for a univariate EDA (UMDAg) over a wide set of parameters and problems -the standard benchmark developed for the IEEEWorkshop on Evolutionary Algorithms and other Metaheuristics for Continuous Optimization Problems of the ISDA 2009 Conference. The study concludes that the configurations based on migrating individuals obtain better results.

关键词： Computation theory

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Automatic diagnosis of masses by using level set segmentation and shape description

Automatic diagnosis of masses by using level set segmentatio...

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International Conference on Pattern Recognition

作者： Oliver, Arnau Torrent, Albert Lladó, Xavier Martí, Joan Dept. of Computer Architecture and Technology University of Girona Girona Catalonia Spain

ISBN: (纸本)9780769541099

We present here an approach for automatic mass diagnosis in mammographic images. Our strategy contains three main steps. Firstly, region of interests containing mass and background are segmented using a level set algorithm based on region information. Secondly, the characterisation of each segmented mass is obtained using the Zernike moments for modeling its shape. The final step is the diagnosis of masses as benign or malignant lesions, which is done using the Gentleboost algorithm that also assigns a likelihood value to the final result. The experimental evaluation, performed using two different digitised databases and Receiver Operating Characteristics (ROC) analysis, proves the feasibility of our proposal, showing the benefits of a correct shape description for improving automatic mass diagnosis. © 2010 IEEE.

关键词： Mammography

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