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Current Trends in Computer Science, 2007. ENC 2007. Eighth Mexican International Conference on

Date 24-28 Sept. 2007

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Displaying Results 1 - 25 of 35
  • Eighth Mexican International Conference on Current Trends in Computer Science - Cover

    Publication Year: 2007, Page(s): c1
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  • Eighth Mexican International Conference on Current Trends in Computer Science-Title

    Publication Year: 2007, Page(s):i - iii
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  • Eighth Mexican International Conference on Current Trends in Computer Science-Copyright

    Publication Year: 2007, Page(s): iv
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  • Eighth Mexican International Conference on Current Trends in Computer Science - TOC

    Publication Year: 2007, Page(s):v - vi
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  • Foreword

    Publication Year: 2007, Page(s): vii
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  • Organizing Committee

    Publication Year: 2007, Page(s):viii - ix
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  • Preface

    Publication Year: 2007, Page(s): x
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  • Program Committee

    Publication Year: 2007, Page(s):xi - xii
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  • Additional reviewers

    Publication Year: 2007, Page(s): xiii
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  • Indexing Methods for Similarity Searching

    Publication Year: 2007, Page(s): xv
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (25 KB)

    An overview is given of the various techniques and issues involved in providing indexing support for similarity searching. Similarity searching is a crucial part of retrieval in multimedia databases used for applications such as pattern recognition, image databases, and content-based retrieval. It involves finding objects in a data set S that are similar to a query object q based on some distance ... View full abstract»

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  • Grasping Society's Treasure Trove of Information

    Publication Year: 2007, Page(s): xvi
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (24 KB)

    Search engines -- "web dragons" -- are the portals through which we access society's treasure trove of information. This talk takes a critical look at how they work and the role they play in today's society, touching on social issues such as web spam, privacy, and the difference between the dragons' motivation and ours. View full abstract»

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  • Building Scalable Semantic Peer-to-Peer Data Management Systems: The SomeWhere Approach

    Publication Year: 2007, Page(s): xvii
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (27 KB)

    In this talk, I present the SomeWhere approach and infrastructure for building semantic peer-to-peer data management systems based on simple personalized ontologies but which are distributed at a large scale. View full abstract»

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  • Fuzzy Spatial Data Warehouse: A Multidimensional Model

    Publication Year: 2007, Page(s):3 - 9
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB) | HTML iconHTML

    Data warehouses have been used for a large variety of applications in order to provide support for the information decision support systems during knowledge discover process. Geographical information systems have gotten the benefits from data warehousing considering that the spatial data is by itself complex and represent a huge amount of information that can be retrieved only by means of a data w... View full abstract»

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  • fMRI Brain Image Retrieval Based on ICA Components

    Publication Year: 2007, Page(s):10 - 17
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (197 KB) | HTML iconHTML

    This manuscript proposes a retrieval system for fMRI brain images. Our goal is to find a similarity-metric to enable us to support queries for "similar tasks" for retrieval on a large collection of brain experiments. The system uses a novel similarity measure between the result of probabilistic independent component analysis (PICA) of brain images. Specifically, the times series of an fMRI dataset... View full abstract»

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  • Algorithm for selection of materialized views: based on a costs model

    Publication Year: 2007, Page(s):18 - 24
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (394 KB) | HTML iconHTML

    A data warehouse integrates businesses' information from both inner and outer data sources. The data set is use to assist the decision taking process, therefore, the multidimensional model design and the selection of materialized views represent a complex and thoughtful process. In this paper, a new algorithm for the selection of optimum set of materialized views is proposed. The proposed algorith... View full abstract»

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  • H-Tree: A data structure for fast path-retrieval in rooted trees.

    Publication Year: 2007, Page(s):25 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (251 KB) | HTML iconHTML

    When repeatedly searching on a depth-first or breath-first search fashion, some nodes are visited many times, as every search requires to start at the root. By providing a way to arrange the data in a different manner and using a hash table as the primary data structure, it is possible to get average lookup times of a path, from the root to any node in constant time, although a disadvantage arises... View full abstract»

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  • Hidden Markov Models for Activity Recognition in Ambient Intelligence Environments

    Publication Year: 2007, Page(s):33 - 40
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (618 KB) | HTML iconHTML

    Context-aware computing offers several advantages for human computer interaction by augmenting ambient intelligence environments with computational artifacts that can be responsive to the needs of users. One of the main challenges in context-aware computing is context recognition. While some contextual variables, such as location, can be easily recognized, others, such as activity are more complex... View full abstract»

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  • Automatic Recognition of Chemical Images

    Publication Year: 2007, Page(s):41 - 46
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (263 KB) | HTML iconHTML

    Images of chemical molecules can be produced, manipulated, simulated and analyzed using sophisticated chemical software. However, in the process of publishing such images into scientific literature, all their chemical significance is lost. Although images of chemical molecules can be easily analyzed by the human expert, they cannot be fed back into chemical software and loose much of their potenti... View full abstract»

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  • Random Features Applied to Face Recognition

    Publication Year: 2007, Page(s):47 - 51
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (418 KB) | HTML iconHTML

    In this paper we show how a simplified version of a describing vector can be used to efficiently recognize complex objects. We describe how simplified vectors are randomly obtained from complete describing vectors and how these simplified versions can be used to recognize faces. We compare the efficiency of the proposal against PCA using several known distance classifiers with a benchmark of faces... View full abstract»

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  • Non-Myopic Feature Selection Method for Continuous Attributes and Discrete Class

    Publication Year: 2007, Page(s):52 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB) | HTML iconHTML

    Currently there exist diverse feature selection ranking methods and metrics for databases with pure discrete data (attributes and class), or pure continuous data. However, little work has been done for the case of continuous attributes with discrete class, and at the same time evaluating attribute subsets in a non-myopic fashion, considering its inter-dependencies or interactions. Normally what we... View full abstract»

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  • An Accurate Image Registration Method Using a Projective Transformation Model

    Publication Year: 2007, Page(s):58 - 64
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (246 KB) | HTML iconHTML

    Given a model structure, an input image and a reference image, the parametric registration task is to find a parameters vector (of the model) that transform the input image into the reference image. This paper reviews the general projective model and develops a new method of computing the set of image derivatives needed. It shows how the classical method reported in the literature is only accurate... View full abstract»

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  • Non-invasive tumor localization by 3D registration of range sensor and computer tomography images.

    Publication Year: 2007, Page(s):65 - 72
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (359 KB) | HTML iconHTML

    This paper describes a patient positioning method that allows a non-invasive localization of tumors in the field of conformal radiotherapy for the treatment of cancers located in the head. The proposed methodology uses computer tomography and range sensor images of the patient's head; on the one hand tomography data has information of tumor localization related to the patient's head and on the oth... View full abstract»

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  • AGORA: a Layered Architecture for Cooperative Work Environments

    Publication Year: 2007, Page(s):73 - 80
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (365 KB) | HTML iconHTML

    Groupware systems are closely related with factors which define organization and knowledge of the group. Considering these factors are very variable, development and management processes of groupware systems are complex and require adaptable infrastructure which guarantees their evolution. From this need, we propose AGORA as a layered architecture for building flexible cooperative applications in ... View full abstract»

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  • COMIS: Cooperative Methodology for Information Systems

    Publication Year: 2007, Page(s):81 - 87
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (310 KB) | HTML iconHTML

    This paper proposes a cooperative methodology for IS development, focusing on the end-user's collaboration in the process, providing the training and tools required to obtain the characteristics of the processes in which he/she is involved and actively integrating the user in the IS development team. Each of the steps involved in IS development is coordinated by a Meta-CASE tool based on a Workflo... View full abstract»

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  • Searchius: A Collaborative Search Engine

    Publication Year: 2007, Page(s):88 - 98
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1587 KB) | HTML iconHTML

    Searchius is a collaborative search engine that produces search results based solely on user provided web-related data. We discuss the architecture of this system and how it compares to current state-of-the-art search engines. We show that the global users' preference over pages can be efficiently used as a metric of page quality, and that the inherent organization of the collected data can be use... View full abstract»

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