Báo cáo khoa học: "Question Answering using Constraint Satisfaction: QA-by-Dossier-with-Constraints" docx

... Question Answering using Constraint Satisfaction: QA-by-Dossier-with-Constraints John Prager T.J. Watson Research Ctr. Yorktown Heights ... is achieved by using con- straints, compared with our baseline system, using standard evaluation metrics. 2 Related Work Logic and inferencing have been a part of Ques- tion -Answering since ... look at the constraints required for th...

Ngày tải lên: 31/03/2014, 03:20

... de Abstract AnswerBus News Engine' is a question answering system using the contents of CNN Web site 2 as its knowledge base. Comparing to other question answering systems including its previous versions, ... Question Answering Using Web News as Knowledge Base Zhiping Zheng Computational Linguistics Department Saarland ... features. Keywords: question answering, QA specific...

Ngày tải lên: 31/03/2014, 20:20

... Esfinge – a Question Answering System in the Web using the Web Luís Fernando Costa Linguateca at SINTEF ICT Pb 124 Blindern, 0314 ... Blindern, 0314 Oslo, Norway luis.costa@sintef.no Abstract Esfinge is a general domain Portuguese question answering system. It tries to take advantage of the great amount of in- formation existent in the ... of tech- niques are quite interesting and...

Ngày tải lên: 08/03/2014, 21:20

... method successive constraint relaxation. This strategy helps to in- crease recall while preserving precision. As an alternative to the successive constraint relaxation using Boolean retrieval, ... both linguistic knowledge and external resources for TREC-style question answering. In particular, we describe a high performance question answering system called QUALIFIER (QUestion An...

Ngày tải lên: 22/02/2014, 02:20

... 72% at homograph level using 50 example sentences 431 from LDOCE. 3 CHIP: Constraint Handling In Prolog We decided it was worthwhile investigating the use of a constraint handling language ... describe how a constraint can be satisfied). In addition, classes of built-in predicates over finite domain variables exist for: (1) arithmetic and symbolic constraints (basic constrai...

Ngày tải lên: 22/02/2014, 10:20

... maximum number of questions on which the algorithm for propagating syntactic constraints can have an impact without using other knowledge. The algorithm for propagating verb argument could be ... lexi- cal chains consisting of WordNet rela- tions. The algorithm creates verb argu- ment structures using VerbNet syntactic patterns. In order to increase the cover- age, a larger set of verb se...

Ngày tải lên: 08/03/2014, 02:21

... Noisy- Channel Approach to Question Answering, Proc. of ACL-2003, pp. 16-23 (2003). Abraham Ittycheriah, Martin Franz, Wei-Jing Zhu, and Adwait Ratnaparkhi: Question Answering Using Maximum-Entropy Components, ... Instance-Based Question Answering: A Data-Driven Approach: Proc. of EMNLP-2004, pp. 396–403 (2004). Hwee T. Ng, Jennifer L. P. Kwan, and Yiyuan Xia: Ques- tion Answering Us...

Ngày tải lên: 08/03/2014, 04:22

... (Felber, 1984). The recent works on ATR identify the candidate terms using shallow syntactic information and score the terms using statistical measure such as frequency. The candidate terms are ... engineering and chemistry are highly related. 2.3 Scoring Terms Using Dictionary Hierarchy The main idea for scoring terms using the hierarchy is based on the premise that terms i...

Ngày tải lên: 08/03/2014, 05:20

... how much using ASR output degrades detection of decision regions. 3 The authors used the AMI DA annotations. 309 The authors conducted experiments using the AMI corpus and found that when using ... (Fern ´ andez et al., 2008). The HGM result presented in Table 2 was computed using the three-level DBN model (see Fig. 4b) using the combination of UTT and DA features. Without DA featur...

Ngày tải lên: 23/03/2014, 16:20

... METEOR scores were computed using 16 references. The TER and TERp were com- puted using a single reference. 4.3 Reordering model comparison Tables 1 and 2 show the scores using the differ- ent reordering ... weighted alignment matrices. First, we test a simple approach by using the 1-best alignment to generate the reordering model, while using the alignment matrix to produce the tra...

Ngày tải lên: 23/03/2014, 16:20