Search for dissertations about: "information retrieval"

Showing result 1 - 5 of 150 swedish dissertations containing the words information retrieval.

  1. 1. Textual information retrieval An approach based on language modeling and neural networks

    University dissertation from Umeå : Tillämpad fysik och elektronik

    Author : Apostolos A. Georgakis; Umeå universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Informatics; computer and systems science; Language modeling; Informatik; data- och systemvetenskap; SOCIAL SCIENCES Statistics; computer and systems science Informatics; computer and systems science; SAMHÄLLSVETENSKAP Statistik; data- och systemvetenskap Informatik; data- och systemvetenskap;

    Abstract : This thesis covers topics relevant to information organization and retrieval. The main objective of the work is to provide algorithms that can elevate the recall-precision performance of retrieval tasks in a wide range of applications ranging from document organization and retrieval to web-document pre-fetching and finally clustering of documents based on novel encoding techniques. READ MORE

  2. 2. Modern GIR Systems Framework, Retrieval Model and Indexing Techniques

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Xing Lin; KTH.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Information Retrieval; GIR; Framework; Indexing; Retrieval Model; TECHNOLOGY Information technology Other information technology; TEKNIKVETENSKAP Informationsteknik Övrig informationsteknik;

    Abstract : Geographic information is one of the most important and the most common types of information in human society. It is estimated that more than 70% of all information in the world has some kind of geographic features. READ MORE

  3. 3. Resource Lenient Approaches to Cross Language Information Retrieval : Using Amharic

    University dissertation from Stockholm : Department of Computer and Systems Sciences, Stockholm University

    Author : Atelach Alemu Argaw; Stockholms universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cross language information retrieval; Amharic; stemming; MRD based query translation; transliteration; named entity detection; translation term selection; sense discrimination; POS tagging; SOCIAL SCIENCES Statistics; computer and systems science Informatics; computer and systems science Computer and systems science; SAMHÄLLSVETENSKAP Statistik; data- och systemvetenskap Informatik; data- och systemvetenskap Data- och systemvetenskap; Computer and Systems Sciences; data- och systemvetenskap;

    Abstract : Information Retrieval (IR) deals with finding and presenting information from a collection of documents/data that are relevant to an information need (a query) expressed by a user. Cross Language Information Retrieval (CLIR) is a subfield of IR where queries are posed in a different language than that of the document collection. READ MORE

  4. 4. The effects of indexing strategy-query term combination on retrieval effectiveness in a Swedish full text database

    University dissertation from Göteborg : Göteborg University

    Author : Per Ahlgren; Högskolan i Borås.; Göteborgs universitet.; Gothenburg University.; [2004]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; base word form index; full text retrieval; indexing strategies; inflected word form index; morphological analysis; normalization; Swedish; SWETWOL; truncation; user scenarios; informationsåtervinning; metodik; fulltextdatabaser; information retrieval; methodology; fulltext databases;

    Abstract : This thesis deals with Swedish full text retrieval and the problem of morphological variation of query terms in thedocument database. The study is an information retrieval experiment with a test collection. While no Swedish testcollection was available, such a collection was constructed. READ MORE

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

    University dissertation from Electro and information technology

    Author : Koraljka Golub; Lunds universitet.; Lund University.; [2007]
    Keywords : 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;

    Abstract : 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. READ MORE