Sökning: "Subject classification"

Visar resultat 1 - 5 av 72 avhandlingar innehållade orden Subject classification.

  1. 1. 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

  2. 2. 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

  3. 3. Mellan retorik och praktik En ämnesdidaktisk och läroplansteoretisk studie av svenskämnena och fyra gymnasielärares svenskundervisning efter gymnasiereformen 1994

    Detta är en avhandling från Umeå : Svenska och samhällsvetenskapliga ämnen

    Författare :Edmund Knutas; Högskolan Dalarna.; Umeå universitet.; [2008]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; skolämnet svenska; gymnasieskolan; ämnesdidaktiska kunskaper; transformation; ramfaktorer; läroplansteori; klassifikation; inramning; medborgarskap; samhälle; retorik och praktik; school subject Swedish; upper secondary school; pedagogical content knowledge; transformation; frame factors; curriculum theory; classification; framing; citizenship; society; rhetoric and practise; SOCIAL SCIENCES Social sciences Pedgogical work; SAMHÄLLSVETENSKAP Socialvetenskap Pedagogiskt arbete; School subject Swedish;

    Sammanfattning : Swedish as a school subject has long been debated in Sweden, and ideas concerning its content, role and function in school and society have varied greatly throughout the years. In 1994, there was an upper secondary school reform which resulted in a partial revision of the Swedish subject, including its introduction within a new course and grading system. LÄS MER

  4. 4. Subject retrieval in web-based library catalogs

    Detta är en avhandling från University of Zagreb

    Författare :Koraljka Golub; [2003]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; British university libraries; Croatian university libraries; Indexing and retrieval systems; Online library catalogs; Subject access points; Subject retrieval; User interface; User search behavior; WebPACs; Library and Information Science; Biblioteks- och informationsvetenskap;

    Sammanfattning : This thesis has been motivated by past research, problems and realizations that online library catalog users frequently perform subject searches – using keywords, subject headings and descriptors – and these searches have yielded unsatisfactory results. Web-based catalogs or WebPACs (Web-based Online Public Access Catalogs), belonging to the so-called third generation of online catalogs and providing a wide variety of search options, remain largely underutilized despite the continuous advancement of information retrieval systems. LÄS MER

  5. 5. Statistical inference and time-frequency estimation for non-stationary signal classification

    Detta är en avhandling från Media-Tryck, Lund University, Sweden

    Författare :Rachele Anderson; Lunds universitet.; Lund University.; Lund University.; Lunds universitet.; Lund University.; [2019-09-09]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Non-stationary processes; stochastic modeling; inference; spectral analysis; time-frequency analysis; classification; biomedical applications; deep learning;

    Sammanfattning : En signal är en fysisk kvantitet som varierar med någon oberoende variabel, t.ex. tid eller rum, som förmedlar information. En signal vars statistiska egenskaper är konstant i tid kallas stationär, medan signaler vars egenskaper varierar med tiden kallas icke-stationära, vilket är de vanligaste i naturen. LÄS MER