For the TREC-5, Category B adhoc task, we examined the effectiveness of two relevance feedback models: an adaptive linear model and a probabilistic model (Sumner & Shaw, 1997). The models were shown to be effective, especially when the relevance assessments of the searchers matched those of the official TREC judges. During feedback, the query was expanded by a large number of terms from the ret...

HIT-IR-WSD is a word sense disambiguation (WSD) system developed for English lexical sample task (Task 11) of Semeval 2007 by Information Retrieval Lab, Harbin Institute of Technology. The system is based on a supervised method using an SVM classifier. Multi-resources including words in the surrounding context, the partof-speech of neighboring words, collocations and syntactic relations are use...

The linguistic phenomenon of collocation, the habitual juxtaposition of some words in natural language has been shown to benefit natural language processing tasks such as information retrieval. This paper examines the utility of several methods for collocation extraction for document retrieval, specifically for queries in question form.

To investigate the effect of massed and distributed collaborative and non-collaborative presentation on L2 learners’ comprehension and production of lexical collocations, 105 participants at Takestan Islamic Azad University in 4 groups were assigned to four different treatment conditions (collaborative-massed; collaborative-distributed; noncollaborative-massed; and noncollaborative-distributed ...

We describe a method to automatically discover translation collocations from a bilingual corpus and how these improve a machine translation system. The process of inference of collocations is iterative: an alignment is used to derive an initial set of collocations, these are used in turn to improve the alignment and this new alignment is used to generate new collocations. This process is repeat...

This study aimed to discover the effect of mobile-assisted teaching of collocations on Iranian EFL learners’ reading achievement. For this purpose, a PET test was given to 85 intermediate EFL learners as the proficiency test. After homogenization, 30 female and male students within the age range of 16 to 30 years old from an institute in Alborz Province were selected as the participants in the ...

to investigate the effect of massed and distributed collaborative and non-collaborative presentation on l2 learners’ comprehension and production of lexical collocations, 105 participants at takestan islamic azad university in 4 groups were assigned to four different treatment conditions (collaborative-massed; collaborative-distributed; noncollaborative-massed; and noncollaborative-distributed ...

In this paper, we describe a fusion approach to finding opinion about a given target in blog postings. We tackled the opinion blog retrieval task by breaking it down to two sequential subtasks: ontopic retrieval followed by opinion classification. Our opinion retrieval approach was to first apply traditional IR methods to retrieve on-topic blogs, and then boost the ranks of opinionated blogs us...

telemedicine has changed the way of health care. it is an indispensable tool in the hands of doctors to accelerate and facilitate the process of data interchange. wireless networks consist of small nodes with communications capabilities. development of wireless networks of telemedicine system is highly demanded since these networks promise a wide range of potential applications. in this paper t...