Afita Mssa Version 2

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AFITA/9th AOS workshop:Multilingual Semantic Search Assistant

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  • Afita Mssa Version 2

    1. 1. Kim Soonho, Jeetendra Singh, Ze Li, Andrew Bagdanov,Ajay Krishnan, Margherita Sini, TV Prabhakar and Johannes Keizer FAO of the United Nations, Indian Institute of Technology, Kanpur Guangdong Accademy of Agricultural Science
    2. 2. <ul><li>Backgrounds </li></ul><ul><li>Objectives </li></ul><ul><li>Implementation requirements </li></ul><ul><li>The Multilingual Semantic Search Assistant (MSSA)‏ </li></ul><ul><ul><li>System overview </li></ul></ul><ul><ul><li>Four functions in MSSA </li></ul></ul><ul><li>Evaluation </li></ul><ul><li>Conclusion and future work </li></ul>
    3. 3. FAO AGRIS/CARIS Network FAO Google search
    4. 4. <ul><li>Helping users to find proper keywords in the current FAO keyword-based search </li></ul><ul><ul><li>Less than 5 % of all search queries contain advanced Boolean operators (Spink et all, 2001)  build complex search! Query Restriction! </li></ul></ul><ul><ul><li>Browsing indexed terms to find proper keywords is demanded  browse topics! </li></ul></ul><ul><ul><li>Only 30 % of relevant documents written in 5 official languages of the FAO was retrieved, when using only a single language  expand languages! </li></ul></ul><ul><ul><li>Query expansion based on domain-specific knowledge is necessary to bring more relevant documents  expand synonyms! </li></ul></ul>
    5. 5. <ul><li>Should to be applied to any search (fielded, fulltext)‏ </li></ul><ul><li>Only modify query string itself </li></ul><ul><li>Don’t need to change any source code in the target search engine </li></ul><ul><li>Only use AGROVOC Web Services </li></ul>
    6. 6. <ul><li>Multilingual  supporting cross-language translations </li></ul><ul><li>Semantic  providing functions associated with a formal repository of granular knowledge (AGROVOC thesaurus) in the Food and Agriculture domain </li></ul><ul><li>Search Assistant  assisting users to formulate/find their keywords easily </li></ul>
    7. 7. Sending formulated queries to the search engine +
    8. 8. http://www.minuetto.net/fao/images/help_boolean_search.gif
    9. 9. http://www.minuetto.net/fao/images/help_browse_topics.gif
    10. 11. http://www.minuetto.net/fao/images/help_expand_languages.gif
    11. 12. http://www.minuetto.net/fao/images/help_expand_synonyms.gif
    12. 14. <ul><li>MSSA was developed to help users to find proper keywords associated with AGROVOC and can be applied to any lucene-based search engine. </li></ul><ul><li>A preliminary evaluation shows that expanding languages bring more relevant documents </li></ul><ul><li>The current version is available here: http://www.minuetto.net/fao/index.jsp </li></ul>

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