unsupervised discourse segmentation of documents

Tài liệu Báo cáo khoa học: "Unsupervised Discourse Segmentation of Documents with Inherently Parallel Structure" pdf

... facilitatethe development of better user interfaces and im-prove the performance of summarization and in-formation retrieval systems. Discourse segmentation of the documents com-posed of parallel parts ... to the problem of segmenting parallelparts of documents. The task of aligning each sentence of an abstractto one or more sentences of the body has beenstudied in the context of summarization ... Proceedings of the ACL 2010 Conference Short Papers, pages 151–155,Uppsala, Sweden, 11-16 July 2010.c2010 Association for Computational Linguistics Unsupervised Discourse Segmentation of Documents...

Báo cáo khoa học: "Discourse Segmentation of Multi-Party Conversation" doc

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... prosodic anal-ysis of discourse segments in direction-giving mono-logues. In Proc. of the ACL.J. Hirschberg and C. Nakatani. 1998. Acoustic indicators of topic segmentation. In Proc. of ICSLP.A. ... error of Pk= 15.79, while the average performance of the algorithm is Pk= 15.31 on the WSJ test corpus (unknown number of segments).mean and the variance of the hypothesized probabil-ities of ... approaches tothe segmentation problem applied to spoken andwritten documents. In Section 3, we describe thecorpus of recorded meetings intended to be seg-mented, and the annotation of its discourse...

Tài liệu Báo cáo khoa học: "Unsupervised Segmentation of Chinese Text by Use of Branching Entropy" pdf

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... 0.6 0.7 0.8 0.9 1 10 100 1000 10000 100000 1e+06size(KB)recallprecision434Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435,Sydney, July 2006.c2006...

Báo cáo khoa học: "The utility of parse-derived features for automatic discourse segmentation" doc

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... so our segmentation approach shouldwork well for Discourse GraphBank style parsing.The Penn Discourse Treebank (Miltsakaki et al.,2004), or PDTB, uses a relatively ﬂat annotation of discourse ... Proceedings of the 43rd Annual Meeting of ACL, pages 173–180.E. Charniak. 2000. A maximum-entropy-inspired parser. InProceedings of the 1st Conference of the North AmericanChapter of the Association ... the publicly available SPADE discourse parser1– make use of the output of the Charniak(2000) parser to derive syntactic indicator featuresfor segmentation and discourse parsing.Sporleder...

Báo cáo khoa học: "Making Sense of Sound: Unsupervised Topic Segmentation over Acoustic Input" docx

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... Technology{igorm,malex,regina,glass}@csail.mit.eduAbstractWe address the task of unsupervised topic segmentation of speech data operating overraw acoustic information. In contrast to ex-isting algorithms for topic segmentation of speech, our approach ... the impact of various design deci-sions on the performance of our algorithm.Comparison with Transcript-Based Segmenta-tion Table 2 shows the segmentation accuracy of the audio-based segmentation ... speaker-independent (SI) transcripts. Forall of the algorithms, the target number of segmentsis set to the reference number of segments.boundaries along the span of the lecture and select-ing random...

Báo cáo khoa học: "Unsupervised Segmentation of Words Using Prior Distributions of Morph Length and Frequency" ppt

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... [%]ProbabilisticRecursive MDLLinguisticaNo segmentation Figure 2: Expectation of the percentage of recog-nized morphemes for English data.a baseline of no segmentation fairly high. The no- segmentation baseline ... obtain a segmentation of the words in the corpus, since wecan rewrite every word as a sequence of morphs.2.1 Size of the morph lexiconWe start the generation process by deciding the num-ber of ... segmenta-tion of a set of words consists of the following steps:(1) Segment the words in the corpus using the au-tomatic segmentation algorithm.(2) Divide the segmented data into two parts of equal...

Báo cáo hóa học: " Unsupervised Performance Evaluation of Image Segmentation" pptx

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... contexts. Perspec-tives of this study concern the application of these evaluationcriteria for the choice of the segmentation method parame-ters or the deﬁnition of new segmentation methods by ... a segmentation result. Such anevaluation criterion can be useful for diﬀerent applications: the comparison of segmentation results, the automatic choice of thebest ﬁtted parameters of a segmentation ... given image, or the deﬁnition of new segmentation methods by optimization.We ﬁrst present the state of art of unsupervised evaluation, and then, we compare six unsupervised evaluation criteria....

A critical discourse analysis of the news on north korean missile launches part 3

Danh mục: Thạc sĩ - Cao học

... on Critical Discourse Analysis …………………………………………81.2.1.What is Critical Discourse Analysis …………………………………………… 91.2.2.Key notions of CDA …………………………………………………………… 91.2.3.Methodology of CDA ……………………………………………………………111.2.4.Principles ... ………………………………………………………………………iList of Tables …………………………………………………………………………… iiINTRODUCTION ……………………………………………………………………….11. Rationale ………………………………………………………………………… 12. Scope of the research …………………………………………………………… 23. Aims of ... ………………………………………………………… 46. Design of the research …………………………………………………………… 5CHAPTER 1 – THEORETICAL BACKGROUND ………………………………… 61.1. The history of Critical Linguistics and Critical Discourse Analysis ……………...

A critical discourse analysis of the news on north korean missile launches part 4

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... do. The importance of the historical contexts of discourse therefore should be highlighted in the processes of interpretation and explanation of discourses.Ideology is one of the most controversial ... reflection of ideology, thus CDA can help revealing the hidden effects of language embodied in various types of discourse. With the aim of dealing with social problems by means of language, ... way of discourse practice. That is, properties of socio-cultural practice shape texts, but indirectly through shaping the nature of discourse practice, which is realized in features of texts....

A critical discourse analysis of the news on north korean missile launches part 5

Danh mục: Thạc sĩ - Cao học

... researchWithin the limitation of a minor thesis, the research focuses only on the written text of the news discourse in a relatively short period of time from two sources of news and studies certain ... both the groups of participants. In a broad sense, the analysis obviously proves that discourse or the use of language is a medium for expressing ‘attitudes’ or various forms of social relations.2. ... in two stages: the analysis of headlines and the analysis of full-text news reports. In the first stage, we will make a detailed description of the representation of the US- Japan coalition...

A critical discourse analysis of the news on north korean missile launches part 6

Danh mục: Thạc sĩ - Cao học

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A critical discourse analysis of the news on north korean missile launches part 7

Danh mục: Thạc sĩ - Cao học

A critical discourse analysis of the news on north korean missile launches part 8

Danh mục: Thạc sĩ - Cao học

... from two sources of news: the Voice of America and Nhan Dan Analysis of headlines- VOAPositively represent the US-Japan coalition 76.9% of the processesThe role of actor and sayer ... Scope of the research Aims of the research and research questions Methodology Background information Design of the research lexicalizationVOA Negativization of NK’s activitiesPositivization ... over-lexicalization of NK’s missile launchesNhan Dan neutral over-lexicalization of NK’s missile launches Data analysis and discussionAnalysis of headlines Analysis of full-text news...