Tài liệu Báo cáo khoa học: "Is the End of Supervised Parsing in Sight?" pdf

... sentences, resulting in a total training set of 4,040k sentences. We believe that our result is quite promising for the future of unsupervised parsing. In putting our best f-score in table 4 into perspective, ... Conclusion: future of supervised parsing In this paper we have shown that the accuracy of unsupervised parsing under U-DOP* continues to grow when...

Ngày tải lên: 20/02/2014, 12:20

... in the domain of cooking tasks. The domain is limited to a mini-world con- sisting of a small set of verbs chosen because they involve rather complex arm movements which will be interesting ... compute the length of the intervals between stirring events. The length of a single stirring event is a default which is part of the representation of the primitive...

Ngày tải lên: 21/02/2014, 20:20

... the class of the majority of the items which reached it during training. The trees were grown using recursive partitioning; the splitting criterion was reduction in deviance. Using the Gini ... for the LPE experiments because of the ceiling effect and the small size of the complete data set, therefore, we did not rerun the corresponding experiments. Furt...

Ngày tải lên: 22/02/2014, 03:20

... procedure. The finding that the effect of CoASH depends on the presence of ATP (although not of other NTPs such as GTP and UTP; not shown) suggests that it is indirectly mediated via the formation of ... test whether the enzymes catalysing the forma- tion of glucuronate and glucuronate 1-phosphate were present in the lumen of the ER (or had their catalytic site or...

Ngày tải lên: 19/02/2014, 07:20

... His which is far in the sequence from the CXXXC motif, i.e. in the b-hairpin present in the extended, solvent- exposed loop (Fig. 4). Therefore, the involvement in the metal-binding site of residues ... function of the CXXXC motif of human Sco proteins could therefore be impli- cated not only in the maturation of the Cu A site of Cox2 but also in the...

Ngày tải lên: 14/02/2014, 18:20

... for maintenance ( see b elow) d uring the extended g rowth times. Upon addition of acetate to the media containing glucose and propionate, the growth rate of both strains increased and the effect of ... of 2 lmol NADPÆmin )1 Æmg protein )1 . Determination of maintenance In order to calculate the amount of glucose used for maintenance, the wild-type strain A26 was use...

Ngày tải lên: 19/02/2014, 16:20

... predicate, the semantic role of the argument, the head word and the boundary words of the argument. On the target side, the trans- lation of the verbal predicate, the translation of the head word of the ... right. ing, we run the training toolkit in a parallel manner. 4 Argument Reordering Model In this section we introduce the discriminative ar- gument...

Ngày tải lên: 19/02/2014, 19:20

... that the first iteration of EM reinforces the systematic mis- takes of the supervised initializer. In the first E-step, the posterior counts that are computed summarize the predictions of the supervised ... HMM, the input x is a sequence of words and the output y is the corresponding sequence of part -of- speech tags. In the PCFG, the input x is a seque...

Ngày tải lên: 20/02/2014, 09:20

... CRFs in the task of recognition of protein entities. The main difficulty of applying semi-CRFs to Bio-NER lies in the computational cost at training 1 Krauthammer (2004) reported that the inter-annotator agreement ... because, in many cases, the previous label of a named entity is “O”, which indicates a non-named entity. For 98.0% of the named entities in the tr...

Ngày tải lên: 20/02/2014, 12:20

... of the lack of fine-grained subcategorization infor- mation in the PoS tags and by the need to balance depth of analysis against the size of the deriva- tion space. On the Susanne corpus, the geometric mean ... representing lemma- affix-tags and arcs representing named grammati- cal relations. The encoding of this mapping within the grammar is similar to that of...

Ngày tải lên: 20/02/2014, 12:20