Báo cáo khoa học: "Distribution-Based Pruning of Backoff Language Models" potx

... typology of the morphol- ogy of the native South American lan- guages from the point of view of the for- mal language theory. With this object, we give two contrasting examples of de- scriptions of ... about what class of formal languages is the natural for de- scribing the morphology of one particular lan- guage. On the other hand, the criteria of classi- fication of Ame...

Ngày tải lên: 07/03/2014, 22:20

... use of their data and for detailed com- ments on earlier drafts of this paper. parsers are what we will call immediate-head parsers in that all of the properties of the imme- diate descendants of ... capture some of the information we would like, partic- ularly the case heads of noun-phrases inside of prepositional phrases. For example, in “united states of america”, the pro...

Ngày tải lên: 31/03/2014, 04:20

... District 100080, China, kfl@microsoft.com Abstract We propose a distribution-based pruning of n-gram backoff language models. Instead of the conventional approach of pruning n-grams that are infrequent ... Distribution-Based Pruning of Backoff Language Models Jianfeng Gao Microsoft Research China No. 49 Zhichun Road Haidian District 100080, China, jfgao@microsoft.com Kai...

Ngày tải lên: 17/03/2014, 07:20

... discriminative pruning method of n-gram language model for Chinese word segmentation. To reduce the size of the language model that is used in a Chinese word segmenta- tion system, importance of each ... Therefore, language model pruning techniques are used to produce smaller models. Pruning a language model is to eliminate a number of parameters explicitly stored i...

Ngày tải lên: 17/03/2014, 04:20

... experimental data consisted of repeating sequences of measurements of the parallel and perpendicular polarized emission fluorescence decays of the reference compound (three cycles of 20 s), the protein ... the shape of LamA is globular-ellipsoid with calculated dimensions of 4.6 nm · 3.2 nm · 3.4 nm. For the selec- tion of the best model preliminary analysis of the NMR soluti...

Ngày tải lên: 07/03/2014, 21:20

... characteristic of his world). THE SUBLANGUAGE The two sublanguage domains studied thus far consist of descriptions of events involving aircraft activities and launchings of missiles and ... a model of the sublanguage for event reporting which charac- terizes the message traffic, and (2), a model of the analyst-user's conceptualization of the world (i.e., a model of...

Ngày tải lên: 08/03/2014, 18:20

... largely punctuated by the development of original models of research. At the end of the 1980s, the chimpanzee model led to cloning of the viral genome and the definition of infectious molecular clones. ... mutations are at the N-termi- nus of the NS3 helicase, in two distinct positions of NS4B, in the centre of NS5A and in the C-terminal region of NS5B [3–6]. The significance...

Ngày tải lên: 16/03/2014, 05:20

... size of the buffer has two important consequences. First. it allows a proof for the context-freeness of the language to be given in terms of a PDA. Second, it facilitates the design of an ... P denote the set of all packets of rules, and 2/' the powerset of P, and let P.P~,P2 be elements of 2/'. When a set of packets P is active, the pattern segments of...

Ngày tải lên: 17/03/2014, 20:20

... Alaska" does not of itself cause an addition to e/s structure. 12 Rather, application of EDH-2 to the interpretation of clause 5-3 results in the creation of a new node of els structure ... discourse interpretation of tense contributes to the solution of this problem. This work on the discourse interpretation of tense is being carried out in the context of a lar...

Ngày tải lên: 17/03/2014, 20:20

Ngày tải lên: 23/03/2014, 17:20