Báo cáo khoa học: "Espresso: Leveraging Generic Patterns for Automatically Harvesting Semantic Relations" docx

... 2006. c 2006 Association for Computational Linguistics Espresso: Leveraging Generic Patterns for Automatically Harvesting Semantic Relations Patrick Pantel Information Sciences Institute ... analyze our use of generic patterns, we performed the following experiment. For each relation, we randomly sampled 100 in- stances for each generic pattern and built a gold...

Ngày tải lên: 08/03/2014, 02:21

... Association Language Patterns for Negative Life Event Classification Liang-Chih Yu 1 , Chien-Lung Chan 1 , Chung-Hsien Wu 2 and Chao-Cheng Lin 3 1 Department of Information Management, ... dis- covered patterns are then combined with sin- gle words to train classifiers. Experimental re- sults show that association language patterns are significant features, thus yielding bett...

Ngày tải lên: 08/03/2014, 01:20

... of surface text patterns for open-domain question answering systems. In order to obtain an optimal set of patterns, we have developed a method for learning such patterns automatically. A ... of surface patterns (Soubbotin and Soubbotin, 01). The apparent power of such patterns surprised many. We therefore decided to investigate their potential by acquiring patterns aut...

Ngày tải lên: 08/03/2014, 07:20

... (3) Delta leaving Boston seventeen twenty one ar- riving Fort Worth twenty two twenty one forty Here, 'twenty two twenty one forty' must be interpreted as a flight arrival time; ... the syntactic and semantic com- ponents of the Gemini NLP system. Bear et al. (1992) also speculate that acoustic information might be used to filter out false positives for candidates match...

Ngày tải lên: 20/02/2014, 21:20

... (N-grams) are equal. 4.3 Searching for a Record We construct a B + -tree for each N-gram file in the dataset for N = 2, 3, 4, 5, and keep the key of the first N-gram for each file in memory. When a ... second. 5 A rotational latency should also be taken into account be- fore the sequential reading can be done. 2, and so forth. For example, for a given query Our Honorable , the record...

Ngày tải lên: 07/03/2014, 22:20

... the top n semantic pat- terns are presented for relevance judgment. Fi- nally, the semantic patterns judged as relevant are considered to form the relevant set, and the others form the non-relevant ... in- formation indicates that the k words are more likely to form a semantic pattern of length k. Here the length k also ranges from 2 to 4. For each k, we compute the mutu...

Ngày tải lên: 08/03/2014, 02:21

... queries for English and for Spanish; however, there are some that could be defined between factoid and opinion (F/O) and the system can retrieve multiple an- swers after having selected, for example, ... scheme. Furthermore, we created 20 factual and opinionated ques- tions for each language and also the Gold Standard for their answers in the corpus. The purpose of our work is...

Ngày tải lên: 20/02/2014, 09:20

... US surabhi@cs.stanford.edu Matthew Purver Center for the Study of Language and Information Stanford University Stanford, CA 94305, US mpurver@stanford.edu Dan Jurafsky Department of Linguistics Stanford University Stanford, ... 2007. c 2007 Association for Computational Linguistics Disambiguating Between Generic and Referential “You” in Dialog ∗ Surabhi Gupta Department of Computer Sci...

Ngày tải lên: 08/03/2014, 03:20

... electrode. For starch extraction, pellets for ethanol extraction were solubilized by heating them to 95 °Cin0.5m NaOH for 30 min. After acidification with 1 m CH 3 COOH, the suspension was digested for ... pattern search method for bound constrained gloabal optimiza- tion. J Glob Optim 39 , 197–219. 34 Schmidt H & Jirstrand M (2006) Systems Biology Tool- box for MATLAB: a compu...

Ngày tải lên: 14/02/2014, 22:20

... twisted conformation of the first 13 residues from the N-terminus in hGIF compared with the smooth conforma- tion in rlMT2. Panels B1 and B2 are pre- sented in the same view to show a looser conformation ... arranged almost in parallel [12]. Such a conforma- tion was proposed to function as ‘the characteristic conformation’, providing an interaction surface for protein–protein interactions [...

Ngày tải lên: 16/02/2014, 15:20