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BIBE 2012

作者： Christian Mata Arnau Oliver Albert Torrent Joan Marti Dept. of Computer Architecture and Technology University of Girona Campus Montilivi Ed. P-IV

ISBN: (纸本)9781467343572

Web-based applications in computational medicine have become increasingly important during the last years. The rapid growth of the World Wide Web supposes a new paradigm in the telemedicine and eHealth areas in order to assist and enhance the prevention, diagnosis and treatment of patients. Furthermore, training of radiologists and management of medical databases are also becoming increasingly important issues in the field. In this paper, we present MammoApplet, an interactive Java applet interface designed as a web-based tool. It aims to facilitate the diagnosis of new mammographic cases by providing a set of image processing tools that allow a better visualization of the images, and a set of drawing tools, used to annotate the suspicious regions. Each annotation allows including the attributes considered by the experts when issuing the final diagnosis. The overall set of overlays is stored in a database as XML files associated with the original images. The final goal is to obtain a database of already diagnosed cases for training and enhancing the performance of novice radiologists.

关键词： XML DICOM Medical diagnostic imaging Databases Picture archiving and communication systems Java

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REGRESSION WITH SPARSE APPROXIMATIONS OF DATA

REGRESSION WITH SPARSE APPROXIMATIONS OF DATA

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European Signal Processing Conference

作者： Pardis Noorzad Bob L. Sturm Department of Computer Engineering and IT Amirkabir University of Technology Dept. Architecture Design and Media Tech. Aalborg University Copenhagen

ISBN: (纸本)9781467310680

We propose sparse approximation weighted regression (SPARROW), a method for local estimation of the regression function that uses sparse approximation with a dictionary of measurements. SPARROW estimates the regression function at a point with a linear combination of a few regressands selected by a sparse approximation of the point in terms of the regressors. We show SPARROW can be considered a variant of k-nearest neighbors regression (k-NNR), and more generally, local polynomial kernel regression. Unlike k-NNR, however, SPARROW can adapt the number of regressors to use based on the sparse approximation process. Our experimental results show the locally constant form of SPARROW performs competitively.

关键词： Nonparametric local polynomial regression Multivariate regression Sparse approximation

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Formalizing a domain specific language using SOS: An industrial case study

Formalizing a domain specific language using SOS: An industr...

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4th International Conference of Software Language Engineering, SLE 2011

作者： Stappers, Frank P. M. Weber, Sven Reniers, Michel A. Andova, Suzana Nagy, Istvan Dept. of Mathematics and Computer Science Eindhoven University of Technology P.O. Box 513 Eindhoven NL-5600 MB Netherlands Dept. for Architecture and Platform ASML P.O. Box 324 Veldhoven NL-5500 AH Netherlands Dept. of Mechanical Engineering Eindhoven University of Technology P.O. Box 513 Eindhoven NL-5600 MB Netherlands

ISBN: (纸本)9783642288296

This paper describes the process of formalizing an existing, industrial domain specific language (DSL) that is based on the task-resource paradigm. Initially, the semantics of this DSL is defined informally and implicitly through an interpreter. The formalization starts by projecting the existing concrete syntax onto a formal abstract syntax that defines the language operators and process terms. Next, we define the dynamic operational semantics at the level of individual syntactical notions, using structural operational semantics (SOS) as a formal meta-language. Here, the impact of the formalization process on the DSL is considered in terms of disambiguation of underlying (semantic) language design decisions. © 2012 Springer-Verlag.

关键词： Semantics

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AN AMPLITUDE SPECTRAL CAPON ESTIMATOR WITH A VARIABLE FILTER LENGTH

AN AMPLITUDE SPECTRAL CAPON ESTIMATOR WITH A VARIABLE FILTER...

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European Signal Processing Conference

作者： Jesper Kjaer Nielseny Paris Smaragdis Mads Graesboll Christensen Soren Holdt Jensen Aalborg University Dept. of Electronic Systems University of Illinois at Urbana-Champaign Dept. of Computer Science Aalborg University Dept. of Architecture Design & Media Technology

ISBN: (纸本)9781467310680

The filter bank methods have been a popular non-parametric way of computing the complex amplitude spectrum. So far, the length of the filters in these filter banks has been set to some constant value independently of the data. In this paper, we take the first step towards considering the filter length as an unknown parameter. Specifically, we derive a very simple and approximate way of determining the optimal filter length in a data-adaptive way. Based on this analysis, we also derive a model averaged version of the forward and the forward-backward amplitude spectral Capon estimators. Through simulations, we show that these estimators significantly improve the estimation accuracy compared to the traditional Capon estimators.

关键词： Filter Bank Methods Capon Spectral Estimation Filters Filter banks Estimators Amplitude NOS1AP gene capon First Step amplitude spectrum

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Free Roll Decay Modeling of a Trimaran Based on Least Square Support Vector Machine

Free Roll Decay Modeling of a Trimaran Based on Least Square...

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OCEANS Conference

作者： Jinlong Li Songlin Yang Shuo Pang National Key Lab of AUV Technology Harbin Engineering University School of Naval Architecture and Ocean Engineering Jiangsu University of Science and Technology Dept. of Electrical Computer Software Systems Engineering Embry-Riddle Aeronautical University

ISBN: (纸本)9781467308298

A trimaran is a multihulled boat consisting of a main hull and two smaller outrigger hulls, attached to the main hull with lateral struts. There have been many studies highlighting that a trimaran takes many advantages over other types of hulls especially the roll performance, because of the greater resistance to rolling that the outrigger hulls offer. In order to study the rolling motion of a trimaran, an accurate roll motion model is needed. The rolling motion of a trimaran is inherently nonlinear due to both nonlinearities in the restoring moment and damping moment. This paper presents an estimation method to predict the linear and nonlinear roll damping parameters based on free roll decay experiments of a trimaran, whose outrigger hulls are movable both along the longitudinal and transverse direction. The estimation method is based on least square support vector regression (LS-SVR) theory. In order to verify the performance of this new estimation method, the least square (LS) estimation method is also applied to identify the parameters. Both methods show satisfying performances, however models generated by LS-SVR shows less accumulated errors than models generated by LS.

关键词： Trimaran Free roll decay Support vector regression Least square

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Using machine learning techniques and genomic/proteomic information from known databases for PPI prediction

Using machine learning techniques and genomic/proteomic info...

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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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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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