Download or read book Contributions L indexation Et la Recherche D information Avec L analyse Formelle de Concepts written by Víctor Codocedo-Henríquez and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the first models ever to be considered as an index for documents using terms as descriptors, was a lattice structure, a couple of decades before the arrival of Formal Concept Analysis (FCA) as a solid theory for data mining and knowledge discovery.While the Information Retrieval (IR) community has shifted to more advanced techniques for document retrieval, like probabilistic and statistic paradigms, the interest of the FCA community on developing techniques that would improve the state-of-the-art in IR while providing relevance feedback and semantic based features, never decayed. In this thesis we present a set of contributions on what we call FCA-based IR systems. We have divided our contributions in two sets, namely retrieval and indexing. For retrieval, we propose a novel technique that exploits semantic relations among descriptors in a document corpus and a new concept lattice navigation strategy (called cousin concepts), enabling us to support classification-based reasoning to provide better results compared with state-of-the-art retrieval techniques. The basic notion in our strategy is supporting query modification using "term replacements'' using the lattice structure and semantic similarity. For indexing, we propose a new model that allows supporting the vector space model of retrieval using concept lattices. One of the main limitations of current FCA-based IR systems is related to the binary nature of the input data required for FCA to generate a concept lattice. We propose the use of pattern structures, an extension of FCA to deal with complex object descriptions, in order to support more advanced retrieval paradigms like the vector space model. In addition, we propose an advanced model for heterogeneous indexing through which we can combine the vector space model and the Boolean retrieval model. The main advantage of this approach is the ability of supporting indexing of convex regions in an arbitrary vectorial space built from a document collection. Finally, we move forward to a mining model associated with document indexing, namely exhaustive bicluster enumeration using FCA. Biclustering is an emerging data analysis technique in which objects are related by similarity under certain attributes of the description space, instead of the whole description space like in standard clustering. By translating this problem to the framework of FCA, we are able to exploit the robust machinery associated with the computation of concept lattices to provide an algorithm for mining biclusters based on similar values. We show how our technique performs better than current exhaustive enumeration biclustering techniques.
Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992-11 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomatica written by and published by . This book was released on 2007 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cahiers du Centre d tudes de recherche op rationnelle written by Université libre de Bruxelles. Centre d'études de recherche opérationnelle and published by . This book was released on 1984 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Political Virtue and Shopping written by M. Micheletti and published by Springer. This book was released on 2003-09-05 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Political consumerism is turning the market into a site for politics and ethics. It is consumer choice of producers and products on the basis of attitudes and values of personal and family well-being as well as ethical or political assessment of business and government practice. In the face of economic globalization and a regulatory vacuum, consumers increasingly take responsibility in their own hands, making the market an important venue for political action through their decisions of what to purchase. This book opens the readers' eyes to a new way of viewing everyday consumer choices and the role of the market in our lives, illuminating the broader theoretical and historical context of concerns about sweatshops, responsible coffee, and ethical and free trade. Contemporary forms of political consumerism - boycotts, labelling schemes, stewardship certification, socially responsible investing, etc. - are described and evaluated. Individual actions are shown to be important in the complexity of globalization.
Download or read book Cahiers written by Centre d'études de recherche operationnelle and published by . This book was released on 1984 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Expanding the Lexicon written by Sabine Arndt-Lappe and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-01-22 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The creation of new lexical units and patterns has been studied in different research frameworks, focusing on either system-internal or system-external aspects, from which no comprehensive view has emerged. The volume aims to fill this gap by studying dynamic processes in the lexicon – understood in a wide sense as not being necessarily limited to the word level – by bringing together approaches directed to morphological productivity as well as approaches analyzing general types of lexical innovation and the role of discourse-related factors. The papers deal with ongoing changes as well as with historical processes of change in different languages and reflect on patterns and specific subtypes of lexical innovation as well as on their external conditions and the speakers’ motivations for innovating. Moreover, the diffusion and conventionalization of innovations will be addressed. In this way, the volume contributes to understanding the complex interplay of structural, cognitive and functional factors in the lexicon as a highly dynamic domain.
Download or read book Understanding Practice written by Seth Chaiklin and published by Cambridge University Press. This book was released on 1996-05-31 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Levine; 12.
Download or read book Monographic Series written by Library of Congress and published by . This book was released on 1977 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Library of Congress Catalogs written by Library of Congress and published by . This book was released on 1978 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eudised R D Bulletin written by Documentation Centre for Education in Europe and published by . This book was released on 1991 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains research project reports arranged by subject with descriptors from the EUDISED Multilingual Thesaurus.
Download or read book Culture 2030 indicators written by UNESCO and published by UNESCO Publishing. This book was released on 2019-11-18 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aiding Decisions with Multiple Criteria written by Denis Bouyssou and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aiding Decisions With Multiple Criteria: Essays in Honor of Bernard Roy is organized around two broad themes: Graph Theory with path-breaking contributions on the theory of flows in networks and project scheduling, Multiple Criteria Decision Aiding with the invention of the family of ELECTRE methods and methodological contribution to decision-aiding which lead to the creation of Multi-Criteria Decision Analysis (MCDA). Professor Bernard Roy has had considerable influence on the development of these two broad areas. £/LIST£ Part one contains papers by Jacques Lesourne, and Dominique de Werra & Pierre Hansen related to the early career of Bernard Roy when he developed many new techniques and concepts in Graph Theory in order to cope with complex real-world problems. Part two of the book is devoted to Philosophy and Epistemology of Decision-Aiding with contributions from Valerie Belton & Jacques Pictet and Jean-Luis Genard & Marc Pirlot. Part three includes contributions based on Theory and Methodology of Multi-Criteria Decision-Aiding based on a general framework for conjoint measurement that allows intrasitive preferences. Denis Bouyssou & Marc Pirlot; Alexis Tsoukiàs, Patrice Perny & Philippe Vincke; Luis Dias & João Clímaco; Daniel Vanderpooten; Michael Doumpos & Constantin Zopounidis; and Marc Roubens offer a considerable range of examinations of this aspect of MCDA. Part four is devoted to Perference Modeling with contributions from Peter Fishburn; Salvatore Greco, Benedetto Matarazzo & Roman Slowinski; Salem Benferhat, Didier Dubois & Henri Prade; Oscar Franzese & Mark McCord; Bertrand Munier; and Raymond Bisdorff. Part five groups Applications of Multi-Criteria Decision-Aiding, and Carlos Henggeler Antunes, Carla Oliveira & João Clímaco; Carlos Bana e Costa, Manuel da Costa-Lobo, Isabel Ramos & Jean-Claude Vansnick; Yannis Siskos & Evangelos Grigoroudis; Jean-Pierre Brans, Pierre Kunsch & Bertrand Mareschal offer a wide variety of application problems. Finally, Part six includes contributions on Multi-Objective Mathematical Programming from Jacques Teghem, Walter Habenicht and Pekka Korhonen.
Download or read book University of Toronto Quarterly written by University of Toronto and published by . This book was released on 2002 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Postmodern Condition written by Jean-François Lyotard and published by U of Minnesota Press. This book was released on 1984 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book it explores science and technology, makes connections between these epistemic, cultural, and political trends, and develops profound insights into the nature of our postmodernity.
Download or read book Erasmus written by and published by . This book was released on 1963 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Speculum scientiarum; international bulletin of contemporary scholarship; bulletin international de la science contemporaine.
