Báo cáo khoa học: "Optimizing Informativeness and Readability for Sentiment Summarization" pptx

... algorithm for senti- ment summarization that takes account of infor- mativeness and readability, simultaneously. To summarize reviews, the informativeness score is based on sentiments and the readability ... scores that represent the informa- tiveness and readability of the sentence or- der. The informativeness score is defined by the number of sentiment expressions and th...

Ngày tải lên: 23/03/2014, 16:20

... WordNet an tools for POS tagging and Named Entity recognition and classification. It can also be parametrised for obtaining summaries of various lengths and at granularity levels. As for relevance ... mainly used for discourse segmentation. The information stored in this DM lexicon was used for identifying inter- and intra-sentential dis- course segments (Alonso and Caste1...

Ngày tải lên: 31/03/2014, 20:20

... the hierarchal rule table, and introduces a new feature to enhance the translation performance. We em- ploy the relaxed-well-formed dependency struc- ture to constrain both sides of the rule, and about 40% ... the dependency information of bilingual lan- guages. We only keep rules that both sides are relaxed-well-formed (RWF) dependency structure (see the definition in Section 3), and di...

Ngày tải lên: 20/02/2014, 04:20

... words and their meanings, and proven to be highly useful both for many NLP applications associated with semantic processing (Widdows, 2004) and for human modeling in cognitive sci- ence (G¨ardenfors, ... increased, r = .86 for the LSA-based method, r = .72 for the correlation-based method and r = .93 for the dictionary-based method (all ps < .0001), while correct rates f...

Ngày tải lên: 20/02/2014, 12:20

... total is not very high: verbs, around 30 episodes for the finite forms, and about 40 for the non-finite forms; nouns, around 20; adverbs and adjectives, under 5. Morphology does include these ... realization: [gender markers in lexicon for nouns; gen- der inflection paradigms for adjectives, possessives and verbs] Instead of discovering parameters from scratch for each...

Ngày tải lên: 20/02/2014, 18:20

... 00- 18 for training and WSJ 22-24 for testing, and Toutanova and Manning (2000) use WSJ 00-20 for training and WSJ 23-24 for testing. Collins uses a linear perceptron, and Toutanova and Manning (T&A4) ... original formulation of GIS (Darroch and Ratcliff, 1972) required the sum of the feature val- ues for each event to be constant. Since this is not the ca...

Ngày tải lên: 22/02/2014, 02:20

... 850K English words in the military force protection domain. We train IBM Model-4 using GIZA++ toolkit (Och and Ney, 2003) in two trans- lation directions and perform different word align- ment combination. ... that Foreign word f j is aligned with English word e i . The direction of word alignments is ignored. Since the goal of word alignment com- bination is for phrase table training,...

Ngày tải lên: 17/03/2014, 02:20

... derivable from previous discourse, and in Stone and Doran (1997) and Stone and Webber (1998) for natural language generation. Lexical entries are written in the following form, where the semantic parameters ... such NP as {NP,}* {or |and} NP b. NP {, NP}* {,} {or |and} other NP c. NP {,} including {NP,}* {or |and} NP d. NP {,} especially {NP,}* {or |and} NP This technique is adequat...

Ngày tải lên: 23/03/2014, 19:20

... merged and minimised using standard al- gorithms, and then parsed using an automaton- based parser. We present algorithms for con- structing automata from elementary structures, merging and ... identi- fied and processed only once. Recent work by Evans and Weir (1997) and Chen and Vijay-Shanker (1997) addresses this problem from two different perspectives. Evans and...

Ngày tải lên: 20/02/2014, 18:20

... prediction), and utilizing more representative examples for good and bad performance. We also extend the analysis to sin- gle document summarization, for which predict- ing system performance turns ... vocabulary, and average co- sine and topic signature similarity. 5 Correlations with performance The Pearson correlations between features of the input and average system performa...

Ngày tải lên: 22/02/2014, 02:20