• Title/Summary/Keyword: Lexical Information

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Scalable Deep Linguistic Processing: Mind the Lexical Gap

  • Baldwin, Timothy
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2007.11a
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    • pp.3-12
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    • 2007
  • Coverage has been a constant thorn in the side of deployed deep linguistic processing applications, largely because of the difficulty in constructing, maintaining and domaintuning the complex lexicons that they rely on. This paper reviews various strands of research on deep lexical acquisition (DLA), i.e. the (semi-)automatic creation of linguistically-rich language resources, particularly from the viewpoint of DLA for precision grammars.

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English Floating Quantifiers and Lexical specification of Quantifier Retrieval

  • Yoo, Eun-Jung
    • Language and Information
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    • v.5 no.1
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    • pp.1-15
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    • 2001
  • Floating quantifiers(FQs) in English exhibit both universal and language specific proper- ties This paper discusses how such syntactic and semantic characteristics can be explained in terms of a constraint-based, lexical approach to the floating quanti- fer construction within the framework of Head-Driven Phrase Structure Grammar(HPSG). Based on the assumption and FQs are base-generated VP modifiers, this paper proposes and account in which the semantic contribution of FQs consists of a "lexically retrieved" universal quantifier taking scope over the VP meaning.P meaning.

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Cross-Enrichment of the Heterogenous Ontologies Through Mapping Their Conceptual Structures: the Case of Sejong Semantic Classes and KorLexNoun 1.5 (이종 개념체계의 상호보완방안 연구 - 세종의미부류와 KorLexNoun 1.5 의 사상을 중심으로)

  • Bae, Sun-Mee;Yoon, Ae-Sun
    • Language and Information
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    • v.14 no.1
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    • pp.165-196
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    • 2010
  • The primary goal of this paper is to propose methods of enriching two heterogeneous ontologies: Sejong Semantic Classes (SJSC) and KorLexNoun 1.5 (KLN). In order to achieve this goal, this study introduces the pros and cons of two ontologies, and analyzes the error patterns found during the fine-grained manual mapping processes between them. Error patterns can be classified into four types: (1) structural defectives involved in node branching, (2) errors in assigning the semantic classes, (3) deficiency in providing linguistic information, and (4) lack of the lexical units representing specific concepts. According to these error patterns, we propose different solutions in order to correct the node branching defectives and the semantic class assignment, to complement the deficiency of linguistic information, and to increase the number of lexical units suitably allotted to their corresponding concepts. Using the results of this study, we can obtain more enriched ontologies by correcting the defects and errors in each ontology, which will lead to the enhancement of practicality for syntactic and semantic analysis.

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Applying Lexical Semantics to Automatic Extraction of Temporal Expressions in Uyghur

  • Murat, Alim;Yusup, Azharjan;Iskandar, Zulkar;Yusup, Azragul;Abaydulla, Yusup
    • Journal of Information Processing Systems
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    • v.14 no.4
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    • pp.824-836
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    • 2018
  • The automatic extraction of temporal information from written texts is a key component of question answering and summarization systems and its efficacy in those systems is very decisive if a temporal expression (TE) is successfully extracted. In this paper, three different approaches for TE extraction in Uyghur are developed and analyzed. A novel approach which uses lexical semantics as an additional information is also presented to extend classical approaches which are mainly based on morphology and syntax. We used a manually annotated news dataset labeled with TIMEX3 tags and generated three models with different feature combinations. The experimental results show that the best run achieved 0.87 for Precision, 0.89 for Recall, and 0.88 for F1-Measure in Uyghur TE extraction. From the analysis of the results, we concluded that the application of semantic knowledge resolves ambiguity problem at shallower language analysis and significantly aids the development of more efficient Uyghur TE extraction system.

The Relationship between Lexical Retrieval and Coverbal Gestures (어휘인출과 구어동반 제스처의 관계)

  • Ha, Ji-Wan;Sim, Hyun-Sub
    • Korean Journal of Cognitive Science
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    • v.22 no.2
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    • pp.123-143
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    • 2011
  • At what point in the process of speech production are gestures involved? According to the Lexical Retrieval Hypothesis, gestures are involved in the lexicalization in the formulating stage. According to the Information Packaging Hypothesis, gestures are involved in the conceptual planning of massages in the conceptualizing stage. We investigated these hypotheses, using the game situation in a TV program that induced the players to involve in both lexicalization and conceptualization simultaneously. The transcription of the verbal utterances was augmented with all arm and hand gestures produced by the players. Coverbal gestures were classified into two types of gestures: lexical gestures and motor gestures. As a result, concrete words elicited lexical gestures significantly more frequently than abstract words, and abstract words elicited motor gestures significantly more frequently than concrete words. The difficulty of conceptualization in concrete words was significantly correlated with the amount of lexical gestures. However, the amount of words and the word frequency were not correlated with the amount of both gestures. This result supports the Information Packaging Hypothesis. Most of all, the importance of motor gestures was inferred from the result that abstract words elicited motor gestures more frequently rather than concrete words. Motor gestures, which have been considered as unrelated to verbal production, were excluded from analysis in many gestural studies. This study revealed motor gestures seemed to be connected to the abstract conceptualization.

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