Báo cáo khoa học: "Unsupervised Learning of Narrative Event Chains" pptx

... learn events that consti- tute narrative chains. Formally, a narrative chain is a partially ordered set of narrative events that share a common actor. A narrative event is a tu- ple of an event ... actor in this study, a narrative event is thus a tuple of the event and the typed dependency of the protagonist: (event, depen- dency). A narrative chain is a set of...

Ngày tải lên: 31/03/2014, 00:20

... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 602–610, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Unsupervised Learning of Narrative Schemas ... mutually inform each other through a narrative schema model. 2.1 Narrative Event Chains Narrative Event Chains are partially ordered sets of events that all involve the...

Ngày tải lên: 23/03/2014, 16:21

... France emmanuel.dupoux@gmail.com Abstract Accurate unsupervised learning of phonemes of a language directly from speech is demon- strated via an algorithm for joint unsupervised learning of the topology and parameters of a hidden Markov ... im- provement in the efficacy of the SSS algorithm as described in Section 2. It is based on observing that the improvement in the goodness...

Ngày tải lên: 08/03/2014, 01:20

... indicates an improvement of 22-38% in average pre- cision over unstemmed text, and 96% of the performance of the proprietary stem- mer above. 1 Introduction Stemming is the process of normalizing word ... drawbacks that prevent us from using it on a corpus other than the training corpus. Both of the drawbacks below are brought about by the small size of the parallel corpus: • Out...

Ngày tải lên: 08/03/2014, 04:22

... Unsupervised Learning of Dependency Structure for Language Modeling Jianfeng Gao Microsoft Research, Asia 49 Zhichun Road, Haidian District Beijing 100080 China jfgao@microsoft.com Hisami ... the number of pa- rameters of the combined model manageable. To overcome the second obstacle, we used an unsu- pervised learning method that discovers the de- pendency structure of a g...

Ngày tải lên: 17/03/2014, 06:20

... Implicational The existence of x implies the existence of y op. - 11: Weakly Implicational The existence of x sometimes implies the existence of y op. - Table 1: List of semantic primitives. In ... (1988) combines a set of nine fairly specific relations (e.g., FOCUS -OF, PRODUCT -OF, SETTING -OF) . The key to determine plausibility is the transitivity charac- teristic of the aspe...

Ngày tải lên: 23/03/2014, 16:20

... consists of de- scriptions of attributes of an item or offer, and a set of ads for similar items share the same attributes. In these cases, the fields present a salient, intrinsic form of linguistic ... range of linguistic phe- nomena in text, including morphology, parts -of- speech (POS), named entity mentions, and even topic changes in discourse. An HMM consists of a set of...

Ngày tải lên: 23/03/2014, 19:20

... ex- amples of the previous section. From the point of view of bag -of- word methods, the pairs (T 1 , H 1 ) and (T 1 , H 2 ) have both the same intra-pair simi- larity since the sentences of T 1 and ... rules that describe a non trivial set of entailment cases. The experiments with the data sets of the RTE 2005 challenge show an improvement of 4.4% over the state -of- the-art me...

Ngày tải lên: 20/02/2014, 12:20

... Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435, Sydney, July 2006. c 2006 ... Computational Linguistics 428 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 1 2 3 4 5 6 7 8 entropy offset 429 430 431 432 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0.55 0.6 0.65 0.7 0.75

Ngày tải lên: 20/02/2014, 12:20

... Online Learning of Approximate Dependency Parsing Algorithms Ryan McDonald Fernando Pereira Department of Computer and Information Science University of Pennsylvania Philadelphia, ... parsing algorithm. of dependents have been gathered. T his allows for the collection of pairs of adjacent dependents in a single stage, which allows for the incorporation of second-order scores,...

Ngày tải lên: 22/02/2014, 02:20