Báo cáo khoa học: "A Hierarchical Approach to Encoding Medical Concepts for Clinical Notes" docx

... 67–72, Columbus, June 2008. c 2008 Association for Computational Linguistics A Hierarchical Approach to Encoding Medical Concepts for Clinical Notes Yitao Zhang School of Information Technologies The University ... 2001) for identifying possible medical concepts in text. The MetaMap software is configured to re- turn only concepts of ICD-9-CM and SNOMED CT which is...

Ngày tải lên: 31/03/2014, 00:20

... Google Scholar to perform better than BNC as source for finding hypotheses for lexical variants, which may be due to the larger amount of data available to Google Scholar. This seems to outweigh ... concept-A accumulator list which has not been used as an active element be- fore. Repeat steps 1-3 for k iterations Output: top M words of concept-A (verb) accumulator list and top N...

Ngày tải lên: 08/03/2014, 02:21

... July 2006. c 2006 Association for Computational Linguistics A Flexible Approach to Natural Language Generation for Disabled Children Pradipta Biswas School of Information Technology Indian ... used as speech -to- speech translator between English and Mandarin Chinese. The NLG part of this system uses trigram language model for selecting appropriate inflectional form for ta...

Ngày tải lên: 17/03/2014, 04:20

... probability Pr(S → S  ). In order to conform to the log-linear model used in the de- coder, we integrate the two factors by defining the total score of T as formula 3: exp(λ r logPr(S →S  ) +  i λ i F i (S  →T ... then fed to stan- dard phrase-based decoder to produce the optimal translation. Experiments show that, for the NIST MT-05 task of Chinese -to- English translation, the...

Ngày tải lên: 31/03/2014, 01:20

... network-based approach to prepositional phrase attachment disam- biguation for real world texts. Although the use of semantic classes in this task seems intuitively to be adequate, methods employed to ... sense. As a result, before deciding attachment, it is first nec- essary to determine the correct sense for each word. 3 None of the preceding methods used classes for...

Ngày tải lên: 31/03/2014, 04:20

... bootstrapping approach to named entity (NE) classification. This approach only requires a few common noun/pronoun seeds that correspond to the concept for the target NE type, e.g. he/she/man/woman for ... method for PER NE, LOC NE, and ORG NE are 5%, 6%, and 34% respectively. The performance for PER and LOC are above 80%, approaching the performance of supervised learn...

Ngày tải lên: 20/02/2014, 16:20

... C3200 before moving on to investigate a plan for CS263. Since the teacher of C3200 has nothing to do with the plan for taking C3263, the mechanisms for retaining dialogue context will fail to iden- ... such ques- tions implicitly by proceding to answer the ques- tion or to seek information relevant to formulat- ing an answer. However IS may refuse to accept the ques...

Ngày tải lên: 21/02/2014, 20:20

... representational capacity to make such definitions, we have chosen as part of our design no_._tt to use it. For to use it, would mean stepping outside of NIKL to specify constants, and therefore, that the ... in formulae that lexical items map to. For in- stance, vessel and ship map to VESSEL. In the ex- ample above regarding pilot, the constants were PER- SON, FLYING-EV...

Ngày tải lên: 21/02/2014, 20:20

... automatic constituent analysis. The detailed distinctions made by the subcategory symbols are devised with the aim of providing helpful information for automatic constituent analysis and, for ... us to derive word tag adjacency statistics for potential word tag disambiguation. But no parsed corpus exists yet for the purposes of derivln~ statistics for disambiguating parsi...

Ngày tải lên: 22/02/2014, 09:20

... these cytochromes have been proposed to be ter- minal Fe(III) and Mn(IV) reductases, although their role in the reduction of other metals is less well understood. To obtain more insight into this, we ... reduction curves conforms to the MR-1R curve, allow us to deduce that the electron transport chain does not bifurcate any further, but ends at this point before transferring electrons...

Ngày tải lên: 07/03/2014, 09:20