Báo cáo khoa học: "Aligning Medical Domain Ontologies for Clinical Query Extraction" potx

... 79–87, Athens, Greece, 2 April 2009. c 2009 Association for Computational Linguistics Aligning Medical Domain Ontologies for Clinical Query Extraction Pinar Wennerberg Siemens AG, Munich Germany TU ... deliver the clinical users a coherent set of medical image and patient text data . 1 Introduction As the content of numerous ontologies in the biomedical domain increas...

Ngày tải lên: 08/03/2014, 21:20

... Preparing key- words for each domain (§3.1). 2 Associating JFWs with domains (§3.2). 3 Reassociating JFWs with NODOMAIN (§3.3). 4 Manual correction (§3.5). 3.1 Preparing Keywords for each Domain About ... the domains using the domain dictionary. (iii) Sort the domains by the number of JFWs classified in descending order. (iv) Categorize the article as the top domain. If the top dom...

Ngày tải lên: 17/03/2014, 04:20

... specific domain and task the dialogue sys- tem is targeted for. In some specific domains, in which human-human dialogue applications already exists, data collection is generally straight forward, ... Association for Computational Linguistics, pages 203–207, Jeju, Republic of Korea, 8-14 July 2012. c 2012 Association for Computational Linguistics Movie-DiC: a Movie Dialogue Corpus f...

Ngày tải lên: 07/03/2014, 18:20

... Sekine (2006) developed a paradigm for “on- demand information extraction” in order to reduce the amount of effort involved when porting IE sys- tems to new domains. Shinyama and Sekine’s “pre- emptive” ... 18.4 70.17 60.7 >4374 Table 4: For 4 relations, a minimum of 4374 hand-tagged examples is needed for R1-CRF to approximately match the precision of O-CRF for each relation. A “...

Ngày tải lên: 08/03/2014, 01:20

... predicate of the form A i (α 1 , . . . , α dim(A i ) ) with A i ∈ N and α j ∈ (T ∪ V ) ∗ for 1 ≤ j ≤ dim(A i ). Central to RCGs is the notion of ranges on strings. Definition 2. For every w = w 1 . ... to instantiate a clause of the grammar, we need to find ranges for all variables in the clause and for all occurrences of terminals. For convenience, we assume the variables in a clause...

Ngày tải lên: 08/03/2014, 01:20

... the demands associated with information searching and information retriev- ing, especially to support search engines and automatic answer systems on the Internet. For this purpose, we provide ... spe- cific characteristics of the Vietnamese lan- guage for the key phrase selection stage. We also explore NLP techniques that we propose for the analysis of Vietnamese texts, focusing on...

Ngày tải lên: 08/03/2014, 01:20

... make a step back before Gildea and Juraf- sky defined the first set of features for Semantic Role Labeling (SRL). The idea that syntax may have been useful to derive semantic information was already ... frequent roles associated with verbal predicates, for a total of 37,948 arguments. We randomly selected 30% of sentences for testing and 70% for training. Addi- tionally, 30% of training...

Ngày tải lên: 08/03/2014, 21:20

... no manual effort for their training. Their output can be used either by itself, or as training material for modern supervised SRL algorithms. In this paper we present an algorithm for unsu- pervised ... bottom. For each of them we update the following counters: sentence(ST ) for the root ancestor’s ST , patter n i (ST ) for the ones complying to the i-th lexico-syntactic pattern a...

Ngày tải lên: 17/03/2014, 01:20

... Turn-Action 1 U: inform burger b1 Release 2 S: inform burger have b3 Release 3 U: inform side s1 Keep 4 U: inform drink d1 Keep 5 U: inform burger b3 Release 6 S: inform side have s2 Release 7 U: inform side ... low mid U: inform burger b1 2 h-est low S: inform burger have b3 3 mid low S: inform side have s1 4 mid h-est U: inform burger b3 5 mid high U: inform drink d1 6 l-est h-est U: inform...

Ngày tải lên: 23/03/2014, 16:20

... of a tax- onomy. For a taxonomy T(C,R), we define its information function as: ∑ ∈< = C y c x cyx yx ccdTInfo ,, ),()( (1) Similarly, we define the information function for an abstraction ... system ME consistently pro- duces the best F1-measure for all three tasks. The performance of the systems for ODP/is-a is worse than that for WordNet/is-a. This may be because there i...

Ngày tải lên: 30/03/2014, 23:20