Báo cáo khoa học: "Automatic Acquisition of English Topic Signatures Based on a Second Language" potx

... Automatic Acquisition of English Topic Signatures Based on a Second Language Xinglong Wang Department of Informatics University of Sussex Brighton, BN1 9QH, UK xw20@sussex.ac.uk Abstract We ... Topic signatures can be useful in a number of Natural Language Process- ing (NLP) applications, such as Word Sense Disambiguation (WSD) and Text Summarisation. Our method...

Ngày tải lên: 08/03/2014, 04:22

... system that gets only positive examples and makes a permanent judgment on a single example will always degrade as the number of occurrences increases. In fact, making a judgment based on any fixed ... AUTOMATIC ACQUISITION OF SUBCATEGORIZATION FRAMES FROM UNTAGGED TEXT Michael R. Brent MIT AI Lab 545 Technology Square Cambridge, Massachusetts 02139 michael@ai.mit.e...

Ngày tải lên: 20/02/2014, 21:20

... matters. Given a qualia term qt as well as a qualia element qe we actually calculate Web-P(qe,qt) for a specific qualia role. 4.4 Conditional Probability (P) The non web -based conditional probability ... present a quanti- tative evaluation of our approach and a comparison of the different ranking measures with respect to this gold standard. Finally, we also provide an evaluatio...

Ngày tải lên: 08/03/2014, 02:21

... frequency of SCFs for each ad- jective is absent. The inadequacy of manually-created dictionaries and the difficulty of adequately enhancing and main- taining the information by hand was a central moti- vation ... grammaticality. 6 Conclusion We have described a novel system for automati- cally acquiring adjectival subcategorization and as- sociated frequency information from corpora...

Ngày tải lên: 08/03/2014, 04:22

... learning approach, which is more attractive because it is trainable and adaptable, and subsequently the porting of a machine learning sys- tem to another domain is much easier than that of a rule -based ... corpus. 2 Automatic Acquisition of an NE Tagged Corpus We only focus on the three major NE categories (i.e., person, organization and location) because others are relatively...

Ngày tải lên: 08/03/2014, 04:22

... which is a key part of many natural language applications such as speech recognition and statistical ma- chine translation. In this paper, we present a language modeling based on a kind of simple ... associate a priori prob- ability to a sentence. It is a key part of many natural language applications such as speech recognition and statistical machine translation....

Ngày tải lên: 08/03/2014, 05:21

... INTRODUCTION Rule -based parsers use subcategorization informa- tion to constrain the number of analyses that are generated. For example, from subcategorization alone, we can deduce that the ... corpora of unrestricted text: 1. Dictionaries with subcategorization information are unavailable for most languages (only a few recent dictionaries, generally targeted at non- native...

Ngày tải lên: 23/03/2014, 20:20

... an object, always takes an agent, always has a pa- tient, and always has the patient serving as ob- ject. The learner will also assume that em break never takes a location, a dative, etc. ... subject and object grammatical relations, and a representation of what NPs serve as agent, patient, instrument and location. This may be seen as begging the question of verb acquisiti...

Ngày tải lên: 31/03/2014, 18:20

... occur one after the other and can be ex- tracted as a pair of actions. Let us first explain what we mean by 'action', 'pair of actions', and 'sequence of actions' ... objects. A 'pair of actions' consists of two actions that occur in time order. A 'sequence of actions' can be defined as a transitive closure of all the pai...

Ngày tải lên: 31/03/2014, 20:20

... by a professional have been consid- ered as human valuable intellectual property and have gathered attention. In applications, such as automatic summarization, machine translation and so on, ... Parsing of Japanese Spoken Monologue Based on Clause Boundaries Tomohiro Ohno a) Shigeki Matsubara ‡ Hideki Kashioka § Takehiko Maruyama  and Yasuyoshi Inagaki  † Graduate School of Inf...

Ngày tải lên: 17/03/2014, 04:20