Tài liệu Báo cáo khoa học: "Identifying Noun Product Features that Imply Opinions" pdf

... results because there are not many such noun features in the drug domain. 4 Conclusions This paper proposed a method to identify noun product features that imply opinions. Conceptually, this ... # Sentences 13191 1541 4308 2306 # Noun features 326 38 173 222 Table 1. Experimental datasets An issue for judging noun features implying opinions is that it can be subjective. So for the ... correct noun features implying opinions at the rank position N. Because some domains may not contain positive or negative noun features, we combine positive and negative candidate features...

Tài liệu Báo cáo khoa học: "Identifying the Semantic Orientation of Foreign Words" pdf

... orientation of words. Word po-larity is a very important feature that has been usedin several applications. For example, the problemof mining product reputation from Web reviews hasbeen extensively ... us-ing the foreign language resources only and the mul-tilingual network that has both English and foreignwords. We show that bootstrapping from languageswith dense resources such as English ... individualwords is a well-studied problem that attracted sev-eral research efforts in the past few years. In thissection, we survey several methods that addressedthis problem.The work of Hatzivassiloglou...

Tài liệu Báo cáo khoa học: "Identifying Text Polarity Using Random Walks" pptx

... affects perfor-mance. We found out that when the number ofsteps is very large, compared to the diameter of thegraph, the random walk that starts at ambiguouswords, that are hard to classify, have ... shows that the Monte Carloalgorithm for computing the random walks hittingtime performs quite well with values of the num-ber of samples as small as 1000.The preceding experiments suggest that ... only 14 seeds at different thresholds. We no-tice that the accuracy improves by abstaining fromclassifying the difficult words. The figure shows that the top 60% words are classified with an ac-curacy...

Tài liệu Báo cáo khoa học: "Identifying Sarcasm in Twitter: A Closer Look" docx

... therefore argue that using the tweets labeled by their authors using hashtag produces a better quality gold standard. We used a Twitter API to collect tweets that include hashtags that express ... corpus that are labeled with the #sarcasm hashtag include the fol-lowing: 1) @UserName That must suck. 2) I can't express how much I love shopping on black Friday. 3) @UserName that& apos;s ... from our corpus. We ran a χ2 test to identify the features that were most useful in discriminating categories. Table 1 shows the top 10 features based on presence of all dictionary-based...

Tài liệu Báo cáo khoa học: "Identifying Linguistic Structure in a Quantitative Analysis of Dialect Pronunciation" docx

... drawback of the methodis that it analyzes one sound alternation at the time,while in the real data it is often the case that onesound corresponds to several other sounds and that sound correspondences ... analysis has shown that 3 factors are most im-portant, explaining 35% of the total amount of vari-ance. The main drawback of applying this techniquein dialectometry is that it is not directly ... 117 words col-lected from 84 sites equally distributed all over Bul-garia. It comprises nouns, pronouns, adjectives,verbs, adverbs and prepositions which can be foundin different word forms...

Tài liệu Báo cáo khoa học: "Identifying Agreement and Disagreement in Conversational Speech: Use of Bayesian Networks to Model Pragmatic Dependencies" docx

... and structural features that look both forward and backward in the discourse.We then classify utterances as agreement or dis-agreement using these adjacency pairs and features that represent ... structural features that look both forwardand backward in the discourse. This allows us to ac-quire, and subsequently process, knowledge aboutwho speaks to whom. We hypothesize that prag-matic features ... the notation . For example,AGREE simply means that B agrees withA in the spurt of index . This notation makesit obvious that we do not necessarily assume that agreements and disagreements are...

Tài liệu Báo cáo khoa học: "AUTOMATIC NOUN CLASSIFICATION BY USING " ppt

... linguistics. Focusing on nouns, the idea claims that each noun is characterized by Verbs with which it occurs, and also that nouns are similar to the extent that they share verbs. These automatic classification ... shown that using word pairs to classify nouns is better than not using word pairs, when only a few nouns are classified. However, this experiment did not succeed for a sufficient number of nouns ... 1.0. If one noun (a) shares all verb senses with the other noun (b) and the frequency is also same, the distance is 0.0. If one noun (a) shares no verb senses with the other noun (b), the...

Tài liệu Báo cáo khoa học: Enzyme kinetics informatics: from instrument to browser pdf

... enzymes or other reagents toensure that the rate measured was the rate of the reactionof interest.All assays were coupled to enzymes where NAD(P) orNAD(P)H was a product or substrate whose formation ... hoped that the introduction of such asystem here, along with the standardization efforts ofthe STRENDA commission, will encourage compara-ble behaviour in the enzyme kinetics community, such that ... reaction volumes in areaction buffer that consisted initially of 100 mm Mes, pH6.5, 100 mm KCl and 5 mm free magnesium chloride plusother reagents and substrates that were speciﬁc for eachindividual...

Tài liệu Báo cáo khoa học: SREBPs: SREBP function in glia–neuron interactions pdf

... intriguingpossibility that remains to be determined. In thisrespect, it should be noted that the regulation ofSREBP-1 expression and activity in the brain differsfrom that in the periphery. ... intriguing hypothesis that remains to be evaluated.Our observation that SREBP-1c is expressed inSchwann cells of adult peripheral nerve, together withobservations of others that the action of ... neuronal cell lines, suggesting that the actionof such drugs on synaptic transmission may be primar-ily on astrocytes [59]. Taken together, these ﬁndings imply that SREBPs in astrocytes may function...

Tài liệu Báo cáo khoa học: Human Cdc45 is a proliferation-associated antigen pdf

... hypothesis that Cdc45 may be arate-limiting factor for replication [21]. Our analysisrevealed that  4.5 · 104Cdc45 molecules exist perHeLa S3 or T98G cell (Fig. 7). Previous reports showed that ... reports have shown that the amounts ofhuman Mcm2, -3, -5, -7 and Orc2 remain constantduring the cell cycle [6,41], whereas levels of Cdc6 andCdt1 ﬂuctuate [37,42]. Here, we showed that inHeLa S3 ... during G0 ﬁ G1 that controls entry intothe cell cycle. Mol Cell Biol 23, 2351–2361.29 Bermejo R, Vilaboa N & Cales C (2002) Regulation ofCDC6, geminin, and CDT1 in human cells that undergopolyploidization....

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