SIGIR

Commercial search engines provide a quality service at no cost to consumers thanks to embedded targeted marketing. Despite this, I argue there are still reasons why an open source effort should be encouraged in the community: as part of broader open ...

The robust retrieval track explores methods for improving the consistency of retrieval technology by focusing on poorly performing topics. The retrieval task in the track is a traditional ad hoc retrieval task where the evaluation methodology emphasizes ...

The goal of the TREC Genomics Track is to create test collections for evaluation of information retrieval (IR) and related tasks in the genomics domain. The Genomics Track differs from the other TREC tracks in that it is focused on retrieval in a ...

The Terabyte Retrieval Track of the Text REtrieval Conference (TREC) provides an opportunity to test retrieval techniques and evaluation methodologies in the context of a terabyte-scale corpus. Given the size of the corpus, the track also provides a ...

The Second ACM International Workshop on Multimedia Databases was held in Washington, DC, USA, November 13, 2004. Its aim is to bring together university researchers, scientists, industry professionals, software engineers and graduate students who need ...

The 6th ACM International Workshop on Web Information and Data Management (WIDM 2004) was held at the Hyatt Arlington Hotel, in Washington DC, on November 12-13, 2004, in conjunction with the 13th ACM International Conference on Information and ...

The evaluation of multimedia retrieval is a subject that has gained momentum in the last couple of years. CWI, the National Research Institute for Mathematics and Computer Science in the Netherlands, organised a workshop organised on the subject on 24 ...

The 27th European Conference on Information Retrieval Research (ECIR 2005), celebrated in Santiago de Compostela (Spain) on 21-23 March 2005, was jointly organized by the University of Santiago de Compostela (Spain) and the University of Granada (Spain),...

In 2004, the INitiative for the Evaluation of XML Retrieval (INEX), in its third year of investigations into various aspects of theoretical and applied structured retrieval, added a Relevance Feedback (RF) Track. The purpose of this Track is to explore ...

As scientific data repositories, digital libraries and publishers increasingly use the eXtensible Markup Language (XML) for publication and storage interest has arisen in exploiting this formatting for retrieval purposes. XML is attractive because it ...

The INEX workshop is concerned with Evaluating the effectiveness of XML retrieval systems. In 2004 a natural language query task was added to the INEX Ad hoc track. Standard INEX Ad hoc topic titles are specified in NEXI -- a simplified and restricted ...

The thesis discusses and evaluates a model of video information retrieval that incorporates a variation of Relevance Feedback and facilitates object-based interaction and ranking. Object-based feature search for video IR is one of the main novel aspects ...

The key factors for the success of the World Wide Web are its large size and the lack of a centralized control over its contents. Both issues are also the most important source of problems for locating information. The Web is a context in which ...

With the rapid growth of the Web, users are often faced with the problem of information overload and find it difficult to search for relevant and useful information on the Web. Besides general-purpose search engines, there exist some alternative ...

This Music Information Retrieval (MIR) study investigates the use of n-grams and textual Information Retrieval (IR) approaches for the retrieval and access of polyphonic music data. IR, synonymous with text IR, implies the task of retrieving documents ...

The design and evaluation of two information retrieval (IR) learning environments took place in a basic course of IR (6 ECTS credits) at the Department of Information Studies at the University of Tampere. The course consisted of lectures, web exercises ...

Search engine technology builds on theoretical and empirical research results in the area of information retrieval (IR). This dissertation makes a contribution to the field of language modeling (LM) for IR, which views both queries and documents as ...

The increase of digital image acquisition devices, combined to the growth of the Web, requires the definition of Information Retrieval (IR) models and systems providing fast access to images searched by users among large amounts of data.

The doctoral dissertation work concerns the development and exploration of a semi-automatic thesaurus construction approach based on bibliometric methods.

This dissertation proposes a new automatic summarization method focusing on document genre and text structure, and verifies its effectiveness. "Document genre" refers to the type of document, such as a diary or a report. "Text structure" refers to the ...

A word in the English language is considered ambiguous if, regardless of context, it can have more than one possible interpretation or meaning. Many words exhibit lexical ambiguity suggesting that it has the potential to impact upon the performance of ...

This thesis discusses information retrieval from multimedia archives, focusing on documents containing visual material. We investigate search and retrieval in collections of images and video, where video is defined as a sequence of still images. No ...

Searchers can find the construction of query statements for submission to Information Retrieval (IR) systems a problematic activity. These problems are confounded by uncertainty about the information they are searching for, or an unfamiliarity with the ...

MPEG-7 is a generic standard used to encode information about multimedia content and often, different MPEG-7 Descriptor Schemas are instantiated for different representations of a shot such as text annotations and visual features. Our work focuses on ...