• 한국정보과학회논문지:소프트웨어및응용
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• 제32권5호
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• pp.396-405
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• 2005

기존의 주제 관련 연구들은 문서에 자주 등장하는 용어를 주제로 간주하는 등 문서에서 다루는 주제에 대한 정의가 모호하다. 또한 문서를 구성하는 기본 단위인 문장의 주제가 문서 요약 및 정보 추출 등의 연구 분야에 중요하게 활용될 수 있음에도 불구하고, 이에 대한 고려 없이 문서 전체의 주제를 추출하고 할당하는 연구가 대부분이다. 따라서 본 논문에서는 문장 단위의 주제 처리에 대한 기본 연구로서, 백과사전 영역에서 효과적인 중심어주도패턴에 기반한 문장주제 할당 기법을 제안하였다. 두산동아 백과사전 인물분야 2,381문서를 대상으로 성능을 분석해본 결과, 제안된 기법이 비교기준보다 향상된 성능을 보였으며, 특히 제안된 네 가지 중심어주도 패턴 중 술어를 기반으로 구성된 중심어주도패턴 유형 4가 학습집합에 대하여 평균 $98.96\%$, 실험집합에 대하여 $88.57\%$의 성능(F-score)으로 주제할당에 가장 효과적임을 알 수 있었다.

• 음성과학
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• 제14권1호
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• pp.21-35
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• 2007

This paper attempts to investigate phonetic substances of the stress patterns of English compounds and noun phrases, showing that the theoretically derived stress structures are not consistent with the accentual patterns in real utterances. Even though it has been long claimed that compounds have the stress pattern [1 3] and that noun phrases, [2 1] as in Chomsky & Halle (1968), their difference has not been yet explored empirically or phonetically. I present a phonetic experiment conducted to see if there is any difference along the tonal contours, mostly focusing on their pitch accent distribution. 36 different compounds and 36 different noun phrases included in carrier sentences were examined, and they were varied in position within a sentence. Results showed that various accentual patterns were produced, and among them, [H* X] predominantly occurs in all three positions in both compounds and noun phrases, whereas the patterns [X H*] and [X X] appear relatively more frequently in final position than in initial and medial position. Furthermore, the pattern [Ac + No], in which the preceding element is pitch-accented with no accent on the following one, is the major stress pattern in both compounds and noun phrases and in all three sentence positions. This suggests that there seems to be no difference in accentual patterns between compounds and noun phrases, which is not consistent with the hypothesis. The results are interpreted as saying that the preceding element alone tends to be prominent with no accent following it both in compounds and noun phrases, and that therefore, theoretically speculated phonological claims are not always phonetically supported.

• 한국음향학회:학술대회논문집
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• 한국음향학회 1994년도 FIFTH WESTERN PACIFIC REGIONAL ACOUSTICS CONFERENCE SEOUL KOREA
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• pp.949-956
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• 1994

In this paper, we introduce a new speech synthesis method for Japanese and Korean arbitrary sentences using the natural speech data-base. Also, application of this method to a CAI system is discussed. In our synthesis method, a basic sentence and basic accent-phrases are selected from the data-base against a target sentence. Factors for those selections are phrase dependency structure (separation degree), number of morae, type of accent and phonemic labels. The target pitch pattern and phonemic parameter series are generated using those selected basic units. As the pitch pattern is generated using patterns which are directly extracted form real speech, it is expected to be more natural than any other pattern which is estimated by any model. Until now, we have examined this method on Japanese sentence speech and affirmed that the synthetic sound preserves human-like features fairly well. Now we extend this method to Korean sentence speech synthesis. Further more, we are trying to apply this synthesis unit to a CAI system.

• 한국정보처리학회논문지
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• 제5권9호
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• pp.2361-2368
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• 1998

본 논문에서는 한국어대화체를 분석하고 의미패턴에 기반한 대화체 한영 기계번역 시스템에 대하여 기술한다. 한영 기계번역에서 구문정보를 이용한 한국어 모호성은 의미패턴을 이용하여 해결할 수 있다. 따라서 대화체 번역을 위하여 한국어 스케쥴링 도메인으로부터 추출된 의미패턴에 기반한 시스템을 구성한다. 번역의 강건함을 위하여 한국어 문장 분석시 음절을 건너뛰어 분석할 수 있도록 하였으며, 패턴수를 줄이기 위하여 의미패턴에 옵션을 부가하였다. 실험을 위하여 사용된 데이터는 스케쥴링 도메인으로 실험결과 88%의 번역율을 보인다.

• 말소리와 음성과학
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• 제4권4호
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• pp.117-127
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• 2012

This research reports the prosodic characteristics (including articulation speech rate, pause characteristics, duration) of children with cochlear implants with reference to those of children with normal hearing. Subjects are 8-to 10-year-old children, balancing each number of gender as 24. Dialogue speech data are comprised of four types of sentence patterns. Results show that 1) there's a statistically meaningful difference on articulation speech rate between the two groups. 2) On pauses, they are not observed in exclamatory and declarative sentences in normal children. While imperative sentences show no statistical difference on the number of pauses between the two groups, interrogative sentences do. 3) Declarative, exclamatory, and interrogative sentences reveal statistical difference between the two groups in terms of the sentence's final two-syllable word duration, showing no difference on imperative sentences. 4) When it comes to the RFP (duration ratio of sentence final syllable to penultimate syllable), we no statistically meaningful difference between the two groups in all types of sentences exists. 5) Lastly, RWS (the ratio of sentence final two syllable word duration to that of whole sentence duration) shows statistical difference between two groups in imperative sentences, but not in all the rest types.

• 한국음향학회:학술대회논문집
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• 한국음향학회 2000년도 하계학술발표대회 논문집 제19권 1호
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• pp.7-10
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• 2000

Studies of prosody and sentence processing have demonstrated that prosodic phrasing can exhibit strong effects on processing decisions in English. In this paper, we tested Korean sentence fragments containing syntactically ambiguous Adj-N1-N2 strings in a cross-modal naming task. Four accentual phrasing patterns were tested: (a) the default phrasing pattern, in which each word forms an accentual phrase; (b) a phrasing biased toward N1 modification; (c) a phrasing biased toward complex-NP modification; and (d) a phrasing used with adjective focus. Patterns (b) and (c) are disambiguating phrasings; the other two are commonly found with both interpretations and are thus ambiguous. The results showed that the naming time of items produced in the prosody contradicting the semantic grouping is significantly longer than that produced in either default or supporting prosody, We claim that, as in English, prosodic information in Korean is parsed into a well-formed prosodic representation during the early stages of processing. The partially constructed prosodic representation produces incremental effects on syntactic and semantic processing decisions and is retained in memory to influence reanalysis decisions.

• 대한음성학회지:말소리
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• 제68권
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• pp.17-32
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• 2008

The purpose of the present study is to investigate syntactic development of Korean by analysing the spontaneous speech data. Thirty children(3, 5, and 7-year-old and 10 per each age group) and 10 adults are employed as subjects for this study. Speech data were recorded and transcribed in orthography. Transcribed data are analysed syntactically: sentence(simple vs complex) patterns and clause patterns(4 basic types according to the predicate) etc. The results are as follows: 1) simple sentences show higher frequency for the upper age groups, 2) complex sentences with conjunctive and embedded clauses show higher frequency for the upper age groups.

• Journal of Advanced Marine Engineering and Technology
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• 제38권4호
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• pp.444-450
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• 2014

의미 중의성 해소를 위한 대부분의 기존 연구에서는 문장의 특성에 상관없이 고정적인 크기의 문맥을 사용해 왔다. 본 논문에서는 중의성 해소에서 문장에 따라 가변적인 크기의 문맥을 사용하는 가변길이 윈도우와 단어간 거리를 사용한 의미분석 방법을 제안한다. 세종코퍼스의 형태의미분석 말뭉치로 학습하여 12단어 32,735문장에 대해 실험한 결과에서 제안된 방법이 용언에 대하여 92.2%의 평균 정확도를 보여 고정 크기의 문맥을 사용한 경우에 비해 향상된 결과를 보였다.

• 한국지능시스템학회논문지
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• 제21권6호
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• pp.761-766
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• 2011

Hedge는 불확실함을 나타내는 언어적 표현으로, 저자가 자신의 글에 내포된 내용이 불확실하거나 의심이 갈 때 사용한다. 이러한 불확실성 때문에 hedge가 포함된 문장은 사실이 아닌 문장으로 간주된다. 문장이 사실인지 아닌지를 판단하는 것은 여러 응용에서 사용될 수 있는데, 정보검색, 정보추출, 질의응답 등의 응용분야에서 전처리 과정으로 사용되어, 보다 정확한 결과를 얻게 한다. 본 논문에서는 한국어 hedge 말뭉치를 구축하고, 이로부터 hedge 단서 어구들을 추출하여 일반화된 단서어구 패턴을 구축한 후, 한국어 hedge 인식 실험을 하였다. 실험을 통하여 78.6%의 F1-measure값을 얻을 수 있었다.

• 음성과학
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• 제8권2호
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• pp.119-132
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• 2001

The purpose of this study is to investigate the intonation of Korean speakers in English sentence adverbials. The intonation of English sentence adverbials is realized by its syntactic and semantic meaning. Many Korean speakers realize falling or stylized high-rising intonation instead of fall-rising in attitudinal adverbials. In addition, Korean students don't realize deaccenting in likelihood adverbials. These results suggest that the intonation patterns in current English textbooks are not sufficient for English intonation education at school.