Advances in Information Retrieval: 30th European Conference by Nicholas J. Belkin (auth.), Craig Macdonald, Iadh Ounis,

By Nicholas J. Belkin (auth.), Craig Macdonald, Iadh Ounis, Vassilis Plachouras, Ian Ruthven, Ryen W. White (eds.)


This e-book constitutes the refereed lawsuits of the thirtieth annual eu convention on info Retrieval examine, ECIR 2008, held in Glasgow, united kingdom, in March/April 2008.

The 33 revised complete papers and 19 revised brief papers offered including the abstracts of three invited lectures and 32 poster papers have been rigorously reviewed and chosen from 139 complete article submissions. The papers are prepared in topical sections on overview, net IR, social media, cross-lingual info retrieval, concept, video, illustration, wikipedia and e-books, in addition to specialist search.

Show description

Read Online or Download Advances in Information Retrieval: 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings PDF

Best european books

European Status Report on Road Safety: Towards safer roads and healthier transport choices

This document provides the prestige of street defense within the WHO ecu area and offers a baseline evaluation of the way some distance forty nine nations have are available in imposing the suggestions of the realm record on street site visitors damage Prevention. within the quarter, highway crashes outcome every year in 120,000 deaths, 2. four million accidents and a very good fiscal burden, that could be as much as three% of a country's gross household product.

Wireless Sensor Networks: 9th European Conference, EWSN 2012, Trento, Italy, February 15-17, 2012. Proceedings

This publication constitutes the refereed lawsuits of the ninth ecu convention on instant Sensor Networks, EWSN 2012, held in Trento, Italy, in Februar 2012. The sixteen revised complete papers awarded have been conscientiously reviewed and chosen from seventy eight submissions. The papers are geared up in topical sections on conversation and defense, process matters, reliability, localization and clever cameras, and and sensing.

European Metropolitan Commercial Real Estate Markets

Metropolitan advertisement actual property markets are hugely stimulated by way of international forces, the nearby economic system, and institutional behaviour. whereas descriptions of local advertisement genuine property markets are popular and common in educational literature, this monograph is going past that during explaining the dynamics in and diversifications among ecu metropolitan markets.

Saul Bellow and the Decline of Humanism

This can be a examine revealing Saul Bellow's perspectives at the decline of humanism. With chapters on every one of Bellow's novels from "Dangling" to "More Die of Heartbreak", the writer argues that Bellow's imaginative and prescient of recent American tradition denies the potential for humanist enlightenment for his heroes. faced through the materially-driven, spiritually impoverished fact of yank existence, they're more and more pressured into withdrawal and isolation from the fallen neighborhood round them.

Additional resources for Advances in Information Retrieval: 30th European Conference on IR Research, ECIR 2008, Glasgow, UK, March 30-April 3, 2008. Proceedings

Example text

The expected value of a coin flip), simulating an assessor that makes a random judgment about which of two similar pages is preferred. Statistical significance between Tables 2(a) and 2(b) can be measured by a χ2 test comparing the ratio of the number of pairs agreed on to the number disagreed on for both preferences and inferred preferences. The difference is significant (χ2 = 143, df = 1, p ≈ 0). We can also explore redistributing ties at different rates to model different levels of agreement. Up to about 70% agreement on ties, true preference agreement is still significantly greater than inferred preference agreement.

This research was carried out while the author worked at Sensis Pty Ltd. C. Macdonald et al. ): ECIR 2008, LNCS 4956, pp. 28–39, 2008. c Springer-Verlag Berlin Heidelberg 2008 Using Clicks as Implicit Judgments: Expectations Versus Observations 29 While the notion that click behaviour is indicative of user preferences is intuitively appealing, and has in previous work been shown to have some success in improving search results, many properties of clickthrough data have not been explored in detail.

These capture the transitive judgments discussed in the paragraph above. The weights wn (i, j) are set for an evaluation measure: wn (i, j) = 1 gives the utility function for ppref, while wn (i, j) = 1/ log2 (min{rn (i), rn (j)} + 1) (where rn (i) is the rank of document i by system n) produces the utility function for wpref. Note that the expected utility relies on an estimate of the probability that A is preferred to B. We assume a priori that this probability is 12 . After we have made some judgments involving A and some judgments involving B, we may have more information.

Download PDF sample

Rated 4.68 of 5 – based on 38 votes

admin