Sökning: "Information Retrieval"

Visar resultat 6 - 10 av 180 avhandlingar innehållade orden Information Retrieval.

  1. 6. Efficient Image Retrieval with Statistical Color Descriptors

    Författare :Linh Viet Tran; Reiner Lenz; Björn Kruse; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; color properties; images; statistical; content-based image retrieval CBIR ; non-parametric density estimators; image database; Kernel; Gram-Schmidt; geometry-based; Information technology; Informationsteknologi;

    Sammanfattning : Color has been widely used in content-based image retrieval (CBIR) applications. In such applications the color properties of an image are usually characterized by the probability distribution of the colors in the image. LÄS MER

  3. 7. Stylistic experiments for information retrieval

    Författare :Jussi Karlgren; Marti Hearst; Gunnel Källgren; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; Computational linguistics; Datorlingvistik; Computational Linguistics; datorlingvistik;

    Sammanfattning : .... LÄS MER

  4. 8. Brain activity associated with episodic memory : similarities and differences between encoding and retrieval

    Författare :Jonas Persson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Episodic memory; encoding; retrieval; positron emission tomography PET ; enactment; overlap; retrieval mode; retrieval success; novelty;

    Sammanfattning : Understanding the mnemonic functions of the brain has been extensively facilitated by the development of functional neuroimaging techniques such as positron emission tomography (PET) and functional magnetic resonance imaging (fMRI). The present thesis aims at investigating the neural mechanisms underlying memory for personally experienced events (episodic memory), using PET. LÄS MER

  5. 9. On the Relative Utility of 3D Interfaces

    Författare :Monica Tavanti; Mats Lind; Antonio Rizzo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Människa-dator-interaktion; human-computer interaction; information visualization; 2D and 3D interfaces; Människa-dator-interaktion; Information technology; Informationsteknologi; datavetenskap med inriktning människa-dator interaktion; Computer Science; human-computer interaction;

    Sammanfattning : Three-dimensional (3D) interfaces are made with the ambition to reinvent traditional two-dimensional (2D) displays into intuitive 3D environments that allow natural interactions and guarantee users’ satisfaction. However, reality is far from the expectations and 3D interfaces remain experimental. LÄS MER

  7. 10. 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; 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;

    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