Báo cáo khoa học: "Finding Cognate Groups using Phylogenies" ppt

... assume that cognate groups are already known. In this work, we address this limitation, presenting a model in which cognate groups can be discovered automatically. Finding cognate groups is not ... lan- guage per cognate group. Because the assign- ments of words to cognates is unknown, we spec- ify an unknown alignment parameter π  for each modern language which is an alignment...

Ngày tải lên: 17/03/2014, 00:20

... a new layer of verification: we extract pairs of verbs using au- tomatically derived semantic patterns, perform a first stage of filtering using the semantic signa- tures of each word and apply ... comes from using 50 immediate contexts starting with ‘to’, right con- text only: we obtain 56% precision on a recall of 85% calculated on the results of the previous step. Table 2: Results usin...

Ngày tải lên: 08/03/2014, 21:20

... question is a summary of the FAQ relative to that question. find def 1.2 Using FAQ data for summarization We have proposed using statistical learning to con- struct a summarization system, but have ... are: : a probability distribution constructed using not only , but also all words within the six sum- maries (answers) surrounding in . Since is calculated using more text than just alon...

Ngày tải lên: 23/03/2014, 19:20

... Singapore, 4 August 2009. c 2009 ACL and AFNLP Finding Hedges by Chasing Weasels: Hedge Detection Using Wikipedia Tags and Shallow Linguistic Features Viola Ganter and Michael Strube EML Research ... us- ing corpus statistics and syntactic pat- terns. We take Wikipedia as an already annotated corpus using its tagged weasel words which mark sentences and phrases as non-factual. We evaluat...

Ngày tải lên: 20/02/2014, 09:20

... the two synonym extraction approaches based on dis- tributional similarity: one using syntactic context and one using translational context based on word alignment and the combination of both. ... Netherlands {vdplas,tiedeman}@let.rug.nl Abstract There have been many proposals to ex- tract semantically related words using measures of distributional similarity, but these typically are no...

Ngày tải lên: 20/02/2014, 12:20

... Proceedings of EACL '99 Finding content-bearing terms using term similarities Justin Picard Institut Interfacultaire d'Informatique University ... Neuchttel SWITZERLAND justin.picard@seco.unine.ch Abstract This paper explores the issue of using dif- ferent co-occurrence similarities between terms for separating query terms that are ... similar to each other than to ot...

Ngày tải lên: 17/03/2014, 22:20

... Finding Anchor Verbs for Biomedical IE Using Predicate-Argument Structures Akane YAKUSHIJI† Yuka TATEISI‡† Yusuke MIYAO† †Department of ... syntactic patterns on verbs ( anchor verbs ) and their arguments. Anchor verbs can be se- lected by focusing on their arguments. We propose to use predicate-argument structures (PASs), which are outputs ... obtain verbs and their arguments. In this pape...

Ngày tải lên: 31/03/2014, 03:20

... and method. • TRG: The models were trained using only the real-error corpus (baseline). • SRC: Trained using only the pseudo-error corpus. • ALL: Trained using the real-error and pseudo- error corpora ... task is hindered by the difficulty of collecting large error cor- pora. We tackle this problem by using pseudo- error sentences generated automatically. Fur- thermore, we apply domain...

Ngày tải lên: 19/02/2014, 19:20

... bulletin boards, newsgroups, or Inter- net forums. Threaded discussions act as a very im- portant tool for communication and collaboration in the Web. An enormous number of discussion groups exists ... achieves better performance by only using WordNet synonym, hypernym and similar to rela- tions. Adding co-occurrence statistics slightly im- proved performance, while using glosses did no...

Ngày tải lên: 20/02/2014, 04:20

... “ and he wrote it ” is compared with the word “ﺐﺘﻛ” “ he wrote ” using the EWM method the resulting score will be 0, but when using the CCC method it will be 0.667. The CCC method comes from ... have shown the effectiveness of using charac- ter cross-correlation in choosing the best headline out of nominated sentences from Arabic document. The advantage of using character cross-...

Ngày tải lên: 20/02/2014, 05:20