Báo cáo khoa học: "Instance Weighting for Domain Adaptation in NLP" doc

... captures domain difference. Our results also show that in- corporating and exploiting more information from the target domain is much more useful for improv- ing performance than excluding misleading ... work in Section 5 before we conclude in Section 6. 2 Domain Adaptation In this section, we define and analyze domain adap- tation from a theoretical point of view. We show...

Ngày tải lên: 31/03/2014, 01:20

... incorporated to a P o constructing a compound preposition. In this way tagging prepositions and parsing texts in Natural Language Processing is defined in a proper manner. 1 Introduction Prepositions ... functions in Farsi and at the same time very important roles in linguistics especially in computational linguistics. Most of the linguists consider them as members of...

Ngày tải lên: 08/03/2014, 02:21

... based weighting Figure 1: The information about which document instances belong to the same query is lost in document instance weighting scheme. To avoid losing this information, query weighting ... queries in the source domain to the target domain where no rank labels of doc- uments are available, which is referred to as query weighting. Query weighting is a key step in...

Ngày tải lên: 30/03/2014, 21:20

... hashing. Our results in Table 4 include a 1.1% increase in 10-best mode and 0.72% in 50-best mode using the new constraints, showing how the diversified parse list contains better candi- dates for ... n-best parsing and reranking Most parsers use dynamic programming, discard- ing infeasible states in order to maintain tractability. However, constructing an n-best list requires keep-...

Ngày tải lên: 19/02/2014, 19:20

... the string including errors from the String- Database (the former string is referred to as the Similar-String, and the latter as the Error-String). Finally, the correction is made using the ... K (2 in the experiment) characters before and after an error-block in the Error-String, am found in the Similar- String, take out the string (denoted C) between A and B in 1 For detect...

Ngày tải lên: 20/02/2014, 18:20

... yields tricky parameter tying. We formulate a “parameterized FST” paradigm and give training algorithms for it, including a gen- eral bookkeeping trick (“expectation semirings”) that cleanly and ... by first intersecting g with a smaller regular set in which the input being considered is known to fall. In the ex- treme, if each input string is fully observed (not the case if the input is...

Ngày tải lên: 20/02/2014, 21:20

... constructing a probabilistic dictionary (Table 3) for use in aligning words in machine translation (Brown et al., 1990), or for constructing a bilingual concordance (Table 4) for use in lexicography ... French According to our survey, 1988 sales of mineral water and soft drinks were much higher than in 1987, reflecting the growing popularity of these products. Cola drin...

Ngày tải lên: 20/02/2014, 21:20

... differenti- ation in interleukin (IL)-3-containing medium were analyzed for total intracellular b-hexosaminidase activity. Results are expressed as percentages, where the b-hexosaminidase content in SG + ... Laborat- ories, Burlingame, CA) was used as secondary antibody (1 : 100 dilution in NaCl ⁄ P i ). Staining was performed with a standard protocol using the biotin–avidin-based Vec...

Ngày tải lên: 07/03/2014, 11:20

... Parallel Corpus for Statistical Machine Translation. In Machine Translation Summit X (pp. 79{86). Phuket, Thailand. Franz Josef Och. 2003. Minimum error rate training for statistical machine translation. ... users into a single model. We propose a practical and effective method, exploiting a personalized dictionary for each user, to support the use of user-defined short-forms...

Ngày tải lên: 07/03/2014, 18:20

... with the Information Science Institute, University of Southern California, och@isi.edu . of the machine translation output is necessary. In such an environment, the main goal of the ma- chine translation ... of interactive machine translation, first suggested by (Foster et al., 1996), finds a very natural implementation in the framework of statis- tical machine translation. In interacti...

Ngày tải lên: 08/03/2014, 21:20