Sökning: "subject classification"

Visar resultat 1 - 5 av 79 avhandlingar innehållade orden subject classification.

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

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

    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

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

    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

    Författare :Edmund Knutas; Per-Olof Eixon; Bo G. Jansson; Bengt-Göran Martinsson; Umeå universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; School subject Swedish; upper secondary school; pedagogical content knowledge; transformation; frame factors; curriculum theory; classification; framing; citizenship; society; rhetoric and practise; Pedgogical work; Pedagogiskt arbete; skolämnet svenska; gymnasieskolan; ämnesdidaktiska kunskaper; ramfaktorer; läroplansteori; klassifikation; inramning; medborgarskap; samhälle; retorik och praktik; 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

    Författare :Koraljka Golub; Jadranka Lasić-Lazić; Department of Information Science Filozofski fakultet u Zagrebu; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; 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. Improving Image Classification Performance using Joint Feature Selection

    Författare :Heydar Maboudi Afkham; Stefan Carlsson; Josef Kittler; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Image Classification; Latent Variable Models; Computer Science; Datalogi;

    Sammanfattning : In this thesis, we focus on the problem of image classification and investigate how its performance can be systematically improved. Improving the performance of different computer vision methods has been the subject of many studies. LÄS MER