LARP Joint IR studies

LARP initiated Joint IR Studies (JIRS) in October 2007 (FY2008) to coordinate efforts related to the LHC Phase I and II upgrades previously situated either in Accelerator Systems or in Magnet Systems. This note outlines JIRS goals, main directions and milestones

Re-ranking of Yahoo snippets with the JIRS passage retrieval system

Comunicación presentada en: Workshop on Cross Lingual Information Access, CLIA-2007, 20th International Joint Conference on Artificial Intelligence, IJCAI-07, Hyderabad, India, January 6-12, 2007Passage Retrieval (PR) systems are used as first step of the actual Question Answering (QA) systems. Usually, PR systems are traditional information retrieval systems which are not oriented to the specific problem of QA. In fact, these systems only search for the question keywords. JIRS Distance Density n-gram system is a QA-oriented PR system which has given good results in QA tasks when this is applied over static document collections. JIRS is able to search for the question structure in the document collection in order to find the passages with the greatest probability to contain the answer. JIRS is a language-independent PR system which has been already adapted to a few non-agglutinative European languages (such as Spanish, Italian, English and French) as well as to the Arabic language. A first attempt to adapt it to the Urdu Indian language was also made. In this paper, we investigate the possibility of basing on the web the JIRS retrieval of passages. The experiments we carried out show that JIRS allow to improve the coverage of the correct answers re-ranking the snippets obtained with Yahoo search engine.ICT EU-India; TEXT-MESS CICY

Bogoliubov space of a Bose--Einstein condensate and quantum spacetime fluctuations

In the present work we consider the role that metric fluctuations could have upon the properties of a Bose--Einstein condensate. In particular we consider the Bogoliubov space associated to it and show that there are, at least, two independent ways in which the average size of these metric fluctuations could be, experimentally, determined. Indeed, we prove that the pressure and the speed of sound of the ground state define an expression allowing us to determine the average size of these fluctuations. Afterwards, an interferometric experiment involving Bogoliubov excitations of the condensate and the pressure (or the speed of sound of the ground state) provides a second and independent way in which this average size could be determined, experimentally

Passage retrieval in legal texts

[EN] Legal texts usually comprise many kinds of texts, such as contracts, patents and treaties. These texts usually include a huge quantity of unstructured information written in natural language. Thanks to automatic analysis and Information Retrieval (IR) techniques, it is possible to filter out information that is not relevant and, therefore, to reduce the amount of documents that users need to browse to find the information they are looking for. In this paper we adapted the JIRS passage retrieval system to work with three kinds of legal texts: treaties, patents and contracts, studying the issues related with the processing of this kind of information. In particular, we studied how a passage retrieval system might be linked up to automated analysis based on logic and algebraic programming for the detection of conflicts in contracts. In our set-up, a contract is translated into formal clauses, which are analysed by means of a model checking tool; then, the passage retrieval system is used to extract conflicting sentences from the original contract text. © 2011 Elsevier Inc. All rights reserved.We thank the MICINN (Plan I+D+i) TEXT-ENTERPRISE 2.0: (TIN2009-13391-C04-03) research project. The work of the second author has been possible thanks to a scholarship funded by Maat Gknowledge in the framework of the project with the Universidad Politécnica de Valencia Módulo de servicios semánticos de la plataforma GRosso, P.; Correa García, S.; Buscaldi, D. (2011). Passage retrieval in legal texts. Journal of Logic and Algebraic Programming. 80(3-5):139-153. doi:10.1016/j.jlap.2011.02.001S139153803-

An Optimized Soft Computing Based Passage Retrieval System

In this paper we propose and evaluate a soft computing-based passage retrieval system for Question Answering Systems (QAS). Fuzzy PR, our base-line passage retrieval system, employs a similarity measure that attempts to model accurately the question reformulation intuition. The similarity measure includes fuzzy logic-based models that evaluate efficiently the proximity of question terms and detect term variations occurring within a passage. Our experimental results using FuzzyPR on the TREC and CLEF corpora show that our novel passage retrieval system achieves better performance compared to other similar systems. Finally, we describe the performance results of OptFuzzyPR, an optimized version of FuzzyPR, created by optimizing the values of FuzzyPR system parameters using genetic algorithms