Tài liệu Báo cáo khoa học: "Machine Learning for Coreference Resolution: From Local Classification to Global Ranking" ppt

... 157–164, Ann Arbor, June 2005. c 2005 Association for Computational Linguistics Machine Learning for Coreference Resolution: From Local Classification to Global Ranking Vincent Ng Human Language Technology ... need to make tough or potentially suboptimal design decisions. 1 For instance, if we 1 We still need to determine the coreference systems to be employed in...

Ngày tải lên: 20/02/2014, 15:20

... method to solve this problem is to decompose the whole task into a set of individual tasks for each token in the in- put sequence, and solve these small tasks in a fixed order, usually from left to ... to select samples for training. In general, this novel learning framework lies be- tween supervised learning and reinforcement learn- ing. Guided learning is more difficult th...

Ngày tải lên: 20/02/2014, 12:20

... of maltotetraose (labeled from Glc1¢ to Glc4¢ as shown in Fig. 4B) bound to EcoMBP exhibits a curved form, which is similar to the portion (Glc1–Glc4) of the round shape of c-CD bound to TvuCMBP. ... labeled from 1 to 8. (B) EcoMBP–maltotetraose complex. The glucose residues of maltotetraose are labeled from 1¢ to 4¢. (C) TliTMBP–trehalose complex. The glucose residues of tr...

Ngày tải lên: 19/02/2014, 00:20

... on the top of the stack. Left-Arc l Add to the analysis an arc with label l from the token at the head of the buffer to the token on the top of the stack, and push the buffer-token onto the stack. Right-Arc l Add ... ora- cle, i.e. to try to always pick the transitions that 55 lead to the correct parse. The information given to the classifier is the current configuration. There- f...

Ngày tải lên: 20/02/2014, 04:20

... tannine-wijn kamer-toren atoom-molecule paleis-stad (tannine-wine) (room-tower) (atom-molecule) (palace-city) structural — kinine-tonic beeld-kerk wervel-ruggengraat paleis-stad (quinine-tonic) statue-church) ... set to 1. The top-k most reliable patterns are selected to find new tuples. The reliability of each tuple i, r ι (i) is computed according to (4), where P is the set of harveste...

Ngày tải lên: 20/02/2014, 04:20

... algorithm given by (Brown, 1993), which is guaranteed to converge to a global maximum of the likelihood for Model 1. However, running the EM algorithm to optimization for each considered segmentation model ... Morfessor-bi Morfessor-bi: (i) to consistently identify the root word “anahtar” (top portion), and (ii) to match the English plural word form “games” with the Turk- ish...

Ngày tải lên: 20/02/2014, 04:20

... Moreover, we also intend to perform a user study on our visualiza- tion prototype to see if it increases the productivity of post-editors. Acknowledgements We would like to thank Christoph Tillmann and ... Viterbi algorithm to find the best label sequence. To estimate the confidence of a sentence S we rely on the information from the forward-backward inference. One approach is to...

Ngày tải lên: 20/02/2014, 04:20

... and semantically well-formed parallel sen- tences from existing corpus. To achieve this, we first collect a set of rules as the candidates for the substi- tution. We also need to know where we should ... idea of paraphrasing is to find al- ternative ways that convey the same information. In contrast, we propose to build new parallel sen- tences that convey different information, yet...

Ngày tải lên: 20/02/2014, 04:20

... semantic analysis. 3 Challenges in learning from examples In the introductory section, we have shown that, to carry out automatic learning from examples, we need to define a cross-pair similarity ... T 3 is structurally (and somehow lex- ically similar) to T 1 and H 3 is more similar to H 1 than to H 2 . Thus, from T 1 ⇒ H 1 we may extract rules to derive that T 3 ⇒ H 3 ....

Ngày tải lên: 20/02/2014, 12:20

... system. We describe experiments on translation from German to English, showing an improvement from 25.2% Bleu score for a baseline system to 26.8% Bleu score for the system with reordering, a statistically ... lead to significantly different word order from that of English. We now describe how these characteristics can lead to dif- ficulties for phrase–based translation syst...

Ngày tải lên: 20/02/2014, 15:20