Báo cáo khoa học: "Automatically Learning Measures of Child Language Development" pptx

... early stopping of Nelder-Mead serves as a sort of smooth- ing in this very small data-set of 7 children. Our improvements over hand-crafted measures of language development show promise. In the case of individual ... stan- dard measures of language development: (i) MLU, a measure of utterance length, (ii) mean depth of de- pendency parse trees, a measure of syntactic...

Ngày tải lên: 30/03/2014, 17:20

... spe- cific types of part-whole relations (member -of, sub-quantity -of, contained-in, structural part -of and located-in), and for the general set composed of all types. 4.1 Precision of Extracted Relations Two ... extraction (IE) harder when learning the individual types of part-whole relations? That is, we determine whether the performance of state -of- the-art IE systems in l...

Ngày tải lên: 20/02/2014, 04:20

... form of cyprosin was processed in different isoforms by the excision of the prosegment and of most of the PSI [21]. Conversely to what has been found in vivo [31], heavy and light chains of the ... total or partial removal of the internal Fig. 1. Plant aspartic proteinase precursors. Comparison of the amino acid sequences of representative members of the A1 family of plant...

Ngày tải lên: 19/02/2014, 12:20

... errors of each type. Errors of identifica- tion will be further subdivided by type (missing names, spurious names, and boundary errors). We believe such detailed understanding of the benefits of ... difficulty of classification is similar for the two languages. Figure 2. Baseline and Upper Bound of Name Classification 3.2 Identification Errors in Chinese For the remainde...

Ngày tải lên: 20/02/2014, 12:20

... be a conjunction of Ew i and Ew j , and the counterpart is the intersection of set of translations for each language. This oper- ation would reduce the number of words of each language. That means, ... features. Change of parts -of- speech by affixes Af- fixes change parts -of- speech of words in Thai (Charoenporn et al., 1997). There are three prefixes changing the part -of- spe...

Ngày tải lên: 20/02/2014, 12:20

... functions. As yet, no adequate system for natural language processing has approached human levels of performance. Of the various problems that natural language processing has re- vealed, polysemy ... also be viewed as an extended test of computational theories of human cognition; it is this latter perspective that psychol- ogists find most interesting. Language provides a cri...

Ngày tải lên: 20/02/2014, 18:20

... interpretations of two of the texts: the discourse trees of one analyst mirrored the paragraph structure of the texts, while the discourse trees of the other mirrored a logical organization of the ... precision of 68%. In contrast, a random pro- cedure recalled, on average, only 38.4% of the sentences considered important by the judges, with a precision of 38.4%. And t...

Ngày tải lên: 22/02/2014, 03:20

... capable of learning a variety of meaning representations, ranging from simple domain-specific representations, to ones at a level of detail and sophistication comparable to current natural language ... sequence of spectra, the relation between the meaning of a sentence and the sequence of words is not a simple linear sequential model. Language is inherently nested, with...

Ngày tải lên: 08/03/2014, 07:20

... advantage of the fact that regardless of the length of the category only a bounded amount of information (at the beginning and end of the cate- 5Although this category is also the result of combination ... tree sets of CCG have more complicated path sets than the (regular) path sets of CFG tree sets. Consider the set of CCG derivation trees of the form shown in Figure...

Ngày tải lên: 08/03/2014, 18:20

... Distribution-Based Pruning of Backoff Language Models Jianfeng Gao Microsoft Research China No. 49 Zhichun Road Haidian District 100080, China, jfgao@microsoft.com Kai-Fu Lee Microsoft Research China No. ... 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...

Ngày tải lên: 17/03/2014, 07:20