By Cathal Gurrin

These court cases include the papers provided at ECIR 2010, the thirty second european- pean convention on info Retrieval. The convention was once organizedby the information Media Institute (KMi), the Open college, in co-operation with Dublin urban collage and the college of Essex, and was once supported by means of the data Retrieval professional team of the British computing device Society (BCS- IRSG) and the detailed curiosity team on details Retrieval (ACM SIGIR). It used to be held in the course of March 28-31, 2010 in Milton Keynes, united kingdom. ECIR 2010 obtained a complete of 202 full-paper submissions from Continental Europe (40%), united kingdom (14%), North and South the US (15%), Asia and Australia (28%), heart East and Africa (3%). All submitted papers have been reviewed by way of at leastthreemembersoftheinternationalProgramCommittee.Outofthe202- pers forty four have been chosen asfull researchpapers. ECIR has alwaysbeen a convention with a robust scholar concentration. to permit as a lot interplay among delegates as attainable and to maintain within the spirit of the convention we determined to run ECIR 2010 as a single-track occasion. consequently we made up our minds to have presentation codecs for complete papers. a few of them have been awarded orally, the others in poster layout. The presentation structure doesn't signify any di?erence in caliber. in its place, the presentation structure was once determined after the complete papers were permitted on the software Committee assembly held on the college of Essex. The perspectives of the reviewers have been then considered to choose the main applicable presentation structure for every paper.

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20] address the problem of ranking news articles, taking into account publication times but also their interlinkage. Jones and Diaz [21] focus on constructing query-specific temporal profiles based on the publication times of relevant documents. Thus, all of the approaches mentioned are based on the publication times of documents. None of the approaches, though, considers temporal expressions contained in the documents’ contents. Baeza-Yates [4] is the earliest approach that considers temporal expressions contained in documents for retrieval purposes.

Let D denote our document collection. A document d ∈ D is composed of its textual part d text and its temporal part d time . The textual part d text is a bag of textual terms drawn from a vocabulary V . The temporal part d time is a bag of temporal expressions. Analogously, a query q also consists of a textual part q text and a temporal part q time . We distinguish two modes how we derive such a query from the user’s input, which differ in how they treat temporal expressions extracted from the input.

Whether query terms constituting a temporal expression are part of q text ) and (b) uncertainty-ignorant vs. uncertainty-aware definition of P ( Q|T ). The mixing parameters γ and λ control the Jelinek-Mercer smoothing used when generating the textual part and the temporal part of the query, respectively. 75} for each of them, giving us a total of 39 method configurations under comparison. Further, notice 20 K. Berberich et al. Sports Day boston red sox [october 27, 2004] ac milan [may 23, 2007] Month stefan edberg [july 1990] italian national soccer team [july 2006] Year babe ruth [1921] chicago bulls [1991] Decade michael jordan [1990s] new york yankees [1910s] Century la lakers [21st century] soccer [21st century] Technology Day mac os x [march 24, 2001] voyager [september 5, 1977] Month thomas edison [december 1891] microsoft halo [june 2000] Year roentgen [1895] wright brothers [1905] Decade internet [1990s] sewing machine [1850s] Century musket [16th century] siemens [19th century] Culture kurt cobain [april 5, 1994] keith harring [february 16, 1990] woodstock [august 1994] pink floyd [march 1973] rocky horror picture show [1975] michael jackson [1982] sound of music [1960s] mickey mouse [1930s] academy award [21st century] jazz music [21st century] World Affairs berlin [october 27, 1961] george bush [january 18, 2001] poland [december 1970] pearl harbor [december 1941] nixon [1970s] iraq [2001] vietnam [1960s] monica lewinsky [1990s] queen victoria [19th century] muhammed [7th century] Fig.

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