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Which Log for which Information? Gathering Multilinguality Data from Different Log File Types

Which Log for which Information? Gathering Multilinguality Data from Different Log File Types. Maria Gäde, Vivien Petras, and Juliane Stiller Humboldt-Universität zu Berlin CLEF 2010 Padova, 21 September 2010. Premise.

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Which Log for which Information? Gathering Multilinguality Data from Different Log File Types

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  1. Which Log for which Information?Gathering Multilinguality Data from Different Log File Types Maria Gäde, Vivien Petras, and Juliane Stiller Humboldt-Universität zu Berlin CLEF 2010 Padova, 21 September 2010

  2. Premise Assume you are building a multilingual digital library and could log every user action with particular consideration for multilingual activities. • Which questions could one ask? • (Which questions cannot be answered by logging?) Outline: • Europeana • Log file types • Logging multilingual information • Europeana ClickStreamLogger

  3. Europeana • 1,000+ content providers • Portal + APIs • Services September 2010: • 7.8 mio. images • 4.6 mio. texts • 127,000 videos • 68,000 sounds “A digital library that is a single, direct and multilingual access point to the European cultural heritage.” European Parliament, 27 September 2007

  4. Multilingual Europeana • Interface • Search • Browse • Results

  5. Multilingual Europeana

  6. Log File Types Example Apache web server log 123.123.123.123 - - [11/Mar/2010:09:42:06 +0100] "GET /cache/image/?uri=http://images.scran.ac.uk/rb/images/ thumb/0098/00980252.jpg&size=BRIEF_DOC&type=IMAGE HTTP/1.0" 200 2843 "http://www.europeana.eu/portal/brief-doc.html?start=1&view=table&query=italy" "Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)"

  7. Log File Types Example Google Analytics Map overlay (IP address) Languages (system language)

  8. Log File Types – Missing Information • Web server log (Apache) • Interface language missing • Certain actions cannot be distinguished (browse = search) • Ajax / Flash actions (saved searches, tags, filter) • Reconstruct sessions • Search engine log (Solr) • Only queries • Google Analytics • Queries missing

  9. Logging Multilingual Information Stages of the interaction: • Approaching the system / background information • Launching queries / browsing • Viewing results • Interacting with the results (filter, save, tag, repeat) • User background • Interface language • Query language • Query type • Query content • Query translation • Searchresults • Resultsetviews • Resulttranslation • Query reformulation • User-generatedcontent • Savedsearches / docs

  10. Logging Multilingual Information - Background • User background information • Country of access, system language, referrer site • Interface language • Change  stronger intervention

  11. Logging Multilingual Information - Query • Query language • Query processing • Adapting languages to system • Query type • Simple, advanced, fielded (e.g. language restriction) • Pre-selected categories for browsing • Query content • Named entities, dates, numbers (language ambiguous) • Query translation

  12. Logging Multilingual Information - Results • Search results • Document languages • Result set views • Detailed view, external click stronger intervention • Result translation

  13. Logging Multilingual Information – User Activities • Query reformulation / refinement • Language switch • Filtering (language), related-item search • User-generated content • Language of tags • Language of documents being tagged • Saved searches / documents • ???

  14. Europeana ClickStreamLogger • Interface language • state + change for every activity • Search • Result numbers, distribution of results by language / country • Filtering and related searches • Browse • Browsing activities + starting points • Navigation • Move outside Europeana • Ajax • Save / remove searches / tags • User management • Account creation etc.

  15. What happens now… • Soft roll-outs of new releases change site  • Analysis of log data • Interpretation • Re-iteration of “useful information” categories • Re-design user interaction?

  16. www.europeana.euwww.europeanaconnect.eu

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