Báo cáo khoa học: "Text Segmentation with LDA-Based Fisher Kernel" ppt

... 269–272, Columbus, Ohio, USA, June 2008. c 2008 Association for Computational Linguistics Text Segmentation with LDA-Based Fisher Kernel Qi Sun, Runxin Li, Dingsheng Luo and Xihong Wu Speech and Hearing Research ... in blocks, and LDA-based Fisher kernel is used to measure the similarity of adjacent blocks. Each block is then given a final score based on its length and semantic si...

Ngày tải lên: 23/03/2014, 17:20

... surface cues is effective for text segmentation. • The multiple regression analysis with the step- wise method is good for selecting the useful cues for text segmentation and weighting these ... selected cues for text segmentation. We use the method that a weighted sum of the scores for all cues is used as the overall measure to rank the possible segmentation with multiple li...

Ngày tải lên: 31/03/2014, 04:20

... an unknown language without learning data. In other words, we use supervised learning. In line with recent trends in unsupervised segmentation, the problem of finding segments without supervision ... learning methods for languages with abun- dant supervision, and the performance is usually high enough for practical use. This article con- cerns that problem together with segmentation b...

Ngày tải lên: 07/03/2014, 18:20

... 840–847, Prague, Czech Republic, June 2007. c 2007 Association for Computational Linguistics Chinese Segmentation with a Word-Based Perceptron Algorithm Yue Zhang and Stephen Clark Oxford University Computing ... based on local char- acter features are used to make the tagging decisions, with Viterbi decoding finding the highest scoring segmentation. In this paper we propose an alterna...

Ngày tải lên: 08/03/2014, 02:21

... Discussion of Segmentation The concept of segmentation as described here, including the description of nuclei and satellites, appears to be one that annotators can grasp even with minimal training. ... Australia Daniel.Midgley@uwa.edu.au Abstract This paper shows the results of an experiment in dialogue segmentation. In this experiment, segmentation was done on a level of analy...

Ngày tải lên: 17/03/2014, 01:20

... comparison of troughs placed by the segmentation algorithm to the segmentation points identified by the test subjects for all the texts. Discussion: The segmentation algorithm using word repetition ... results demonstrate that supplementing word repetition with other linguistic features can improve text segmentation. As an example, a text segmentation algorithm developed b...

Ngày tải lên: 31/03/2014, 04:20

... activities combine with top-down, expectation-driven ones to cooperatively determine the most I~ely interpretation of the input (Lesgoid and Perfetti, 1981). Roughly speaking, humans begin with a set ... comprising a collection of specialized problem solvers (spe- cialists) with different skill and competence, and working with different knowledge sources, seems a promising way to...

Ngày tải lên: 01/04/2014, 00:20

... Section 3.4). Fix some damping factor µ and say that at each time step with probability (1-µ) we stick to random walking and with probability µ we do not make a usual random walk step, but instead ... considering the weighted matrix M, or jumps to a random node with equal probability. It pro- duces a global ranking over all tweets in the col- lection without taking specific users into ac...

Ngày tải lên: 07/03/2014, 18:20

Ngày tải lên: 20/02/2014, 12:20

... associated with each sentence are coherent themselves, whereas the com- bination of the two sentences is not coherent at the sen- tence boundary. No discourse relation can be associated with the ... of discourse parsing is consistently infe- rior to that within individual sentences, and we will briefly discuss what the key difficulties with extend- ing sentence-level to text-level discour...

Ngày tải lên: 07/03/2014, 18:20