unsupervised discourse segmentation of documents

... facilitate the 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 parallel parts of documents. The task of aligning each sentence of an abstract to one or more sentences of the body has been studied 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...

Ngày tải lên: 20/02/2014, 04:20

... 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 P k = 15.79, while the average performance of the algorithm is P k = 15.31 on the WSJ test corpus (unknown number of segments). mean and the variance of the hypothesized probabil- ities of ... approaches to the segmentation problem applied to spoken and written documents. In Section 3, we describe the corpus of recorded meetings intended to be seg- mented, and the annotation of its discourse...

Ngày tải lên: 23/03/2014, 19:20

... 0.6 0.7 0.8 0.9 1 10 100 1000 10000 100000 1e+06 size(KB) recall precision 434 Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435, Sydney, July 2006. c 2006...

Ngày tải lên: 20/02/2014, 12:20

... so our segmentation approach should work 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. In Proceedings of the 1st Conference of the North American Chapter of the Association ... the publicly available SPADE discourse parser 1 – make use of the output of the Charniak (2000) parser to derive syntactic indicator features for segmentation and discourse parsing. Sporleder...

Ngày tải lên: 08/03/2014, 02:21

... Technology {igorm,malex,regina,glass}@csail.mit.edu Abstract We address the task of unsupervised topic segmentation of speech data operating over raw 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. For all of the algorithms, the target number of segments is set to the reference number of segments. boundaries along the span of the lecture and select- ing random...

Ngày tải lên: 17/03/2014, 04:20

... [%] Probabilistic Recursive MDL Linguistica No 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 we can rewrite every word as a sequence of morphs. 2.1 Size of the morph lexicon We 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...

Ngày tải lên: 31/03/2014, 03:20

... contexts. Perspec- tives of this study concern the application of these evaluation criteria for the choice of the segmentation method parame- ters or the definition of new segmentation methods by ... a segmentation result. Such an evaluation criterion can be useful for different applications: the comparison of segmentation results, the automatic choice of the best 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....

Ngày tải lên: 22/06/2014, 23:20

... on Critical Discourse Analysis …………………………………………8 1.2.1.What is Critical Discourse Analysis …………………………………………… 9 1.2.2.Key notions of CDA …………………………………………………………… 9 1.2.3.Methodology of CDA ……………………………………………………………11 1.2.4.Principles ... ………………………………………………………………………i List of Tables …………………………………………………………………………… ii INTRODUCTION ……………………………………………………………………….1 1. Rationale ………………………………………………………………………… 1 2. Scope of the research …………………………………………………………… 2 3. Aims of ... ………………………………………………………… 4 6. Design of the research …………………………………………………………… 5 CHAPTER 1 – THEORETICAL BACKGROUND ………………………………… 6 1.1. The history of Critical Linguistics and Critical Discourse Analysis ……………...

Ngày tải lên: 07/11/2012, 14:39

... 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....

Ngày tải lên: 07/11/2012, 14:39

... research Within 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...

Ngày tải lên: 07/11/2012, 14:39

Ngày tải lên: 07/11/2012, 14:39

Ngày tải lên: 07/11/2012, 14:39

...  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...

Ngày tải lên: 07/11/2012, 14:39

Ngày tải lên: 07/09/2013, 12:58

Ngày tải lên: 07/09/2013, 12:58

Ngày tải lên: 26/11/2013, 12:41

Ngày tải lên: 26/11/2013, 13:26