Sökning: "classification schemes"

Visar resultat 1 - 5 av 25 avhandlingar innehållade orden classification schemes.

  1. 1. Automated Subject Classification of Textual Documents in the Context of Web-Based Hierarchical Browsing

    Detta är en avhandling från Electro and information technology

    Författare :Koraljka Golub; Lunds universitet.; Lund University.; [2007]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Library and Information Science; Biblioteks- och informationsvetenskap; Dewey Decimal Classification; Engineering Information; hierarchical browsing; controlled vocabularies; thesauri; classification schemes; Automated classification; subject classification; Artificial intelligens; Artificiell intelligens;

    Sammanfattning : With the exponential growth of the World Wide Web, automated subject classification has become a major research issue. Organizing web pages into a hierarchical structure for subject browsing has been gaining more recognition as an important tool in information-seeking processes. LÄS MER

  2. 2. Automated subject classification of textual web pages, for browsing

    Detta är en avhandling från Digital Information Systems Group, Department of Information Technology, Lund University

    Författare :Koraljka Golub; Lunds universitet.; Lund University.; [2005]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Library and Information Science; Biblioteks- och informationsvetenskap; automated classification; subject browsing; structural Web-page elements; Web page classification; document clustering; bibliographic coupling; text categorization; Subject classification;

    Sammanfattning : With the exponential growth of the World Wide Web, automated subject classification of Web pages has become a major research issue in information and computer sciences. Organizing Web pages into a hierarchical structure for subject browsing is gaining more recognition as an important tool in information-seeking processes. LÄS MER

  3. 3. Classification of plethories in characteristic zero

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Magnus Carlson; KTH.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plethories; Witt vectors; ring schemes; Matematik; Mathematics;

    Sammanfattning : We classify plethories over fields of characteristic zero, thus answering a question of Borger-Wieland and Bergman-Hausknecht. All plethories over characteristic zero fields are linear, in the sense that they are free plethories on a bialgebra. LÄS MER

  4. 4. Multitemporal Spaceborne Polarimetric SAR Data for Urban Land Cover Mapping

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Xin Niu; KTH.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; RADARSAT-2; spaceborne; polarimetric SAR; urban land cover; classification; TECHNOLOGY Information technology; TEKNIKVETENSKAP Informationsteknik;

    Sammanfattning : Urban represents one of the most dynamic areas in the global change context. To support rational policies for sustainable urban development, remote sensing technologies such as Synthetic Aperture Radar (SAR) enjoy increasing popularity for collecting up-to-date and reliable information such as urban land cover/land-use. LÄS MER

  5. 5. A Categorical Study of Composition Algebras via Group Actions and Triality

    Detta är en avhandling från Uppsala : Department of Mathematics

    Författare :Seidon Alsaody; Uppsala universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Composition algebra; division algebra; absolute valued algebra; triality; groupoid; group action; algebraic group; Lie algebra of derivations; classification.; Mathematics; Matematik;

    Sammanfattning : A composition algebra is a non-zero algebra endowed with a strictly non-degenerate, multiplicative quadratic form. Finite-dimensional composition algebras exist only in dimension 1, 2, 4 and 8 and are in general not associative or unital. Over the real numbers, such algebras are division algebras if and only if they are absolute valued, i.e. LÄS MER