Báo cáo khoa học: "Automatic Compensation for Parser Figure-of-Merit Flaws*" pot

... parses for the same substring, before it would generate even one parse for another area. The reason for that is that the figures of independent merit are frequently good as relative measures for ... Automatic Compensation for Parser Figure-of-Merit Flaws* Don Blaheta and Eugene Charniak {dpb, ec}@cs, brown, edu Department ... scan 2previous work has shown that the par...

Ngày tải lên: 08/03/2014, 06:20

... part-of-speech-specific layer, which con- tains aspectual information for verbs; and copulas, support expressions, and slot filling information for nouns and adjectives. • The “Other” layer, containing ... answering. The main reason for their popular- ity is that they can produce a flat layer of semantic structure with a fair degree of robustness. Building English semantic parsers for th...

Ngày tải lên: 08/03/2014, 21:20

... over all possible valid translations t for a particular input sentence s. We can initialize this probability distribution to the uniform distribu- tion for each sentence s in the unlabeled data ... Algorithm 1 we run it for a fixed number of iterations and instead focus on finding useful def- initions for Estimate, Score and Select that can be experimentally shown to improve MT performa...

Ngày tải lên: 08/03/2014, 02:21

... presents a method for incor- porating word pronunciation information in a noisy channel model for spelling cor- rection. The proposed method builds an explicit error model for word pronuncia- tions. ... correspond to nothing (i.e., are silent). For example, the entry in NETtalk (when we remove the empties, which contain information for phone level alignment) for the word able is A...

Ngày tải lên: 17/03/2014, 08:20

... basis for the construction of knowledge maps useful both as computational knowledge representations and as learning re- sources for presentation to the student. 2 Related Work Our work is informed ... of very fine granularity and therefore graphs that may not be suitable for presentation to a student. Multi-document summarization (MDS) re- search also informs our work. XDoX analy...

Ngày tải lên: 23/03/2014, 17:20

... improve performance. However, for grammar formalisms which use more fine-grained grammatical cate- gories, for example TAG and CCG, tagging accuracy is much lower. In fact, for these formalisms, ... standard description of the forward- backward algorithm, for example Manning and Schutze (1999), is usually given for an HMM-style tagger. However, it is straightforward to adapt the algo...

Ngày tải lên: 23/03/2014, 18:20

... to different suggestions decided by experts. Therefore, an ideal retrieval system for consultation documents should consider such topic information so as to improve the retrieval precision. ... extraction of topic informa- tion is described briefly. The detailed process is described in (Wu et al. 2005a) for symptom and relation identification, and in (Yu et al., 2007) for event id...

Ngày tải lên: 23/03/2014, 18:20

... Figure 1) or MS-NBC. For example, the structure for the Jim Lehrer News Hour provides not only segmentation information but also content information for each segment. Thus, the order of stories ... content-based information browsing, retrieval, extraction, and summarization to ensure their value for tasks such as real-time profiling and retrospective search. Whereas image proc...

Ngày tải lên: 23/03/2014, 19:20

... the lex- icon information for the words before and after the period, their capitalization and spellings. For training we collected from the WSJ cor- pus 51,000 samples of the form (Y, F F) ... "period-space-capital_letter" approach works well for simple texts but is rather unre- liable for texts with many proper names and abbreviations at the end of sentence as, for...

Ngày tải lên: 23/03/2014, 19:20

... these goals, the information in the model of the user, and on external conditions such as deadlines for changing status in a course. For example purposes, the domain information is read in ... of the simplified domain plan for getting a degree. Consider the first clause of the counts_ .for_ credit predicate. This clause states that a course will count for credit if it is a 500 l...

Ngày tải lên: 24/03/2014, 02:20