... Relating the new lan-guage models ofinformationretrieval to the tradi-tional retrieval models: University of Twente [Host]; University of Twente, Centre for Telemat-ics and Information Technology, ... basis of research into InformationRetrieval (IR). The pioneers in IR developed two models for ranking: the vector space model (G. Salton and M. J. McGill, 1986) and the probabilistic model ... output distribution of the state. Figure 1. HMM proposed in “A Hidden Markov Model InformationRetrievalSystem To estimate the transition and observation probabilities of HMM, EM algorithm...
... provides information about the gen-eral distribution of term i amongst documents of all classes, without providing any additional evi-dence of class preference. The utilization of idfin information ... docu-ments of only one or the other class and thereforedfi,j= 0 .3.3 SMART and BM25 tf.idf variantsThe SMART retrievalsystem by Salton (1971) isa retrievalsystem based on the vector space model (Salton ... al., 1996) is a probabilistic model for informationretrieval and is one of themost popular and effective algorithms used in in-formation retrieval. For ease of reference, we in-corporate...
... also contain the seeds of thiscreative language. Veale (2004) introduces the idea of creative informationretrieval to explore how anIR system can itself provide a degree of creativeanticipation, ... introduced the notion of an ad-hoc category, a cross-cutting collection of oftendisparate elements that cohere in the context of aspecific task or goal. The ad-hoc nature of thesecategories ... usefulcombinations of ?, @ and ^ are described below:?? Neighbor -of- a-neighbor: if ?X matches anyelement of {X, X1, X2, …, Xn} then ??X matchesany of ?X ∪ ?X1 ∪ … ∪ ?Xn, where the ranking of Xij...
... Agency.3 Document Retrieval Since informationretrieval systems supply the ini-tial set of documents on which a question answer-ing system operates, it makes sense to optimizedocument retrieval performance ... LinguisticsThe Role ofInformationRetrieval in Answering Complex QuestionsJimmy LinCollege ofInformation StudiesDepartment of Computer ScienceInstitute for Advanced Computer StudiesUniversity of MarylandCollege ... does not occupy aprivileged position in the space ofinformation ob-jects as the most ideal unit of retrieval. Indeed, forcertain types ofinformation needs, sub-documentsegments are preferred—an...
... information visualization can allow for high-level interpretations of ever-more complex datasets. 33. ModelofInformation Aesthetics 3.1. Domain Model The unique characteristics ofinformation ... proposes a modelofinformation aesthetics in the context ofinformation visualization. It addresses the need to acknowledge a recently emerging number of visualization projects that combine information ... the collective purpose of these two fields, an expanded model is required to describe its influencing factors. 3.2. Information Aesthetics Model The proposed modelofinformation aesthetics...
... Institute of Informatics PKIN, pok.850 00-901 Warszawa POLAND ~BSTRAe~ Presented paper contains a descrip- tion of an experimental version of the natural language informationretrieval system ... DIALOG. The system is destined for the use in the field of medicine. Its main purpose is to ensure access to information to phlsiclans in a conver- sational manner. The use of the system does ... does not require ability of programming from its user. I Introduction The paper presents the state of elaboration of the natural language in- formation retrievalsystem DIALOG. Its aim is...
... met-ric in information retrieval. We’ll address the is-sue of the correlation between BLEU and MAP inSection 4.Both of the proposed approaches rely on thephrase-based SMT (PBMT) model (Koehn ... the PBMT model bytuning the model s weights on a parallel set of queries. This approach addresses the first as-pect of the problem, which is producing a “good”translation. The PBMT model combines ... types of features via a log-linear model. Thestandard features include (Koehn, 2010, Chapter5): language model, word penalty, distortion, dif-ferent translation models, etc. The weights of these...
... given needs the model helps the management of different sluices. The main potential input of multi-agent modelling is the representation of decision-making process. The bio-physical model does not ... related to the objective of the model. Some are related to the knowledge we introduced in the model. Some questions are related to the purpose and the use of the model. For instance, the ... the ability to recognize points of intervention and to construct a bank of options for resource management”. The role of modeling is formulated in this context: “Modeling proceeds iteratively...
... paper presents the results of experi-ments in which we tested different kinds of features for retrievalof Chinese opinionatedtexts. We assume that the task ofretrieval of opinionated texts (OIR) ... of Opinionated InformationRetrieval which is plannedto be a module in a Cross-Language Opinion Extrac-tion system (CLOE). The main goal of this system isto provide access to opinionated information ... the information retrieval (IR) paradigm which has also been used bysome researchers.Several sentiment informationretrieval modelswere proposed in the framework of probabilistic lan-guage models...
... volume constraints typical of DR systems. The modi~,cations are designed to recognize such aspects of discourse structure as establishment of topic; "setting of context; summarizing; concept ... alternative systems for each of the pro- posed modifications. In this experiment the original corpus of thirty abstracts (but not the prublem state- ments) is submitted to all versions of the analysis ... 1979. Representation and classification of knowledge and information for use in interactive information re- trieval. In Human Aspects ofInformation Science. Oslo: Norwegian Library School. 148...
... out-comes confirm that our hypotheses hold inthe context ofInformation Retrieval. 1 IntroductionThe task of an InformationRetrieval (IR) system is to retrieve documents from a collection, in ... Computational LinguisticsExamining the Content Load of Part of Speech Blocks for Information Retrieval Christina LiomaDepartment of Computing ScienceUniversity of Glasgow17 Lilybank GardensScotland, ... resourcesfor informationretrieval tasks. Natural language in-formation retrieval. Kluwer Academic PublishersDordrecht, NL.Bruce Croft and John Lafferty. 2003. Language Mod-eling for Information Retrieval. ...
... ECMT System The MT system used in this research is a rule-based ECMT system. The translation quality of this ECMT system is comparable to the best commercial ECMT systems. The basis of the system ... more and more MT systems are be-ing used in CLIR, it is of significance to care-fully analyze how the performance of MT system may influence the retrieval effectiveness. 3 System Description ... Zhang, and Ming Zhou. 2000. On the Use of Words and N-grams for Chinese Information Retrieval. In Proc. of the Fifth International Workshop on InformationRetrieval with Asian Languages (IRAL-2000),...
... System IS InformationSystem ISA InformationSystem Administrator ISC InformationSystem Component ISO International Organization for Standardization ISO InformationSystem Owner ISSO Information ... designated by the ISO) at the system level. Information System Security Officer (ISSO) The ISSO assists the informationsystem owner with implementation of SecCM for the system, conducts configuration ... completed at the system level and typically covers the following topics: ã Brief description of the subject information system; ã Informationsystem component inventory; ã Informationsystem configuration...
... use of various forms of shared visual information in their every-day communication. The development of an integrated multi-modal model of referring behavior can improve the per-formance of ... evidence of a difference between the perform-ance of the visual-only model on the visual task conditions and the language-only model on the 12 What’s There to Talk About? A Multi-Modal Modelof ... variety of contexts that include visual objects of interest. Such systems may benefit from a data-driven modelof how collaborative pairs adapt their language in the presence (or absence) of shared...