Báo cáo khoa học: "An efficient algorithm for building a distributional thesaurus (and other Sketch Engine developments)" pdf

... ACL 2007 Demo and Poster Sessions, pages 41–44, Prague, June 2007. c 2007 Association for Computational Linguistics An efficient algorithm for building a distributional thesaurus (and other Sketch ... two hours. We have created, and made pub- licly available, thesauruses based on large corpora for (at time of writing) seven major world languages. The development is i...

Ngày tải lên: 31/03/2014, 01:20

... Web1T dataset with an index size of only 100 MB and performs a retrieval of any N-gram with a single disk access. With an increased index size of 420 MB and dupli- cate data, it also allows users ... models give a much better performance with larger data sets. However the large data sets, such as the Web1T 5-Gram corpus of (Brants and Franz, 2006), present a major challenge. The langu...

Ngày tải lên: 07/03/2014, 22:20

... grammar contains exactly the strings abc, a& apos;b'c ~, adbec, and a& apos;db'ecq The al- gorithm from Schabes and Vijay-Shanker (1990) however also accepts adb'ec' and a~ dbec. ... straightforward way to correct the algorithm. We therefore developed an alternative to the algorithm from Schabes and Vijay-Shanker (1990). This alternative is novel in presenta-...

Ngày tải lên: 20/02/2014, 18:20

... intractable. In this pa- per, we describe an alternative generation compo- nent which has polynomial time complexity. Shake-and-Bake translation assumes a source grammar, a target grammar and ... Conclusion We have presented a polynomial complexity gener- ation algorithm which can form part of any Shake- and-Bake style MT system with suitable grammars and information transfer....

Ngày tải lên: 20/02/2014, 22:20

... C. These are all constraints in C. The range constraint vector of a clause c cap- tures all information about boundaries forming a range, ranges containing only a single terminal, and adjacent variables/terminal ... of the ACL-IJCNLP 2009 Conference Short Papers, pages 9–12, Suntec, Singapore, 4 August 2009. c 2009 ACL and AFNLP An Earley Parsing Algorithm for Range Concatenation G...

Ngày tải lên: 08/03/2014, 01:20

... following forms: • NA stands for null adjoining and means that at node X no adjoining can take place, • SA(B) stands for selective adjoining and means that at X the adjoining of an auxil- iary ... F.R.G. harbusch~dfki.uni-sb.de ABSTRACT In the literature, Tree Adjoining Grammars (TAGs) are propagated to be adequate for nat- ural language description analysis as well as genera...

Ngày tải lên: 31/03/2014, 18:20

... 276, 27166–27170. 26 Kawabata S, Nagayama R, Hirata M, Shigenaga T, Agarwala KL, Saito T, Cho J, Nakajima H, Takagi T & Iwanaga S (1996) Tachycitin, a small granular com- ponent in horseshoe crab hemocytes, ... lipid A analogues and acidic phospholipids. Eur J Biochem 176, 89–94. 21 Nakamura T, Furunaka H, Miyata T, Tokunaga F, Muta T & Iwanaga S (1988) Tachyplesin, a class of a...

Ngày tải lên: 30/03/2014, 20:20

... models are a very popular tool in natural language processing, and are often lauded for per- mitting the use of “arbitrary” and “correlated” fea- tures of the data by a model. Users of log-linear models ... decoding. 4 It may be helpful to think of i as forward probabilities, but for the observation set Y ∗ rather than a particular observation y. o are like backward probabilities. N...

Ngày tải lên: 20/02/2014, 12:20

... of a technique that was called grammar specializa- tion. An overview of grammar specialization tech- niques is given in (Sima’an, 1999). For instance, Rayner and Carter (1996) use explanation-based learning ... the training data. To access such tables efficiently, an obvious choice is to use a hash table. The additional stor- age requirements for such a hash table are consid- erable....

Ngày tải lên: 24/03/2014, 03:20

... An anthrax lethal factor mutant that is defective at causing pyroptosis retains proapoptotic activity Stephanie Ngai, Sarah Batty, Kuo-Chieh Liao and Jeremy Mogridge Department of Laboratory ... NS & Woude GF (2002) Apoptosis and melanogenesis in human melanoma cells induced by anthrax lethal factor inactivation of mitogen-activated protein kinase kinase. Proc Natl Acad Sci USA 99, 3052–3...

Ngày tải lên: 16/02/2014, 09:20