Báo cáo khoa học: "Content Models with Attitude" docx

... 350–358, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Content Models with Attitude Christina Sauper, Aria Haghighi, Regina Barzilay Computer Science and Artificial ... improve sentiment prediction by exploit- ing correlations within a single property cluster. For example, if there are already many snippets with the attribute representing positive...

Ngày tải lên: 17/03/2014, 00:20

Ngày tải lên: 20/02/2014, 04:20

... starting with uniform transition distributions. We refer to a model learned from basic EM (uni- formly initialized) as EM, and to a model with grammar-informed initialization as EM GI . 4 Minimized models ... 2009). For tagging, the idea has been implemented using Bayesian models with priors that indirectly induce sparsity in the learned models (Goldwater and Griffiths, 2007); howe...

Ngày tải lên: 07/03/2014, 22:20

... in our switching models is that we might ob- tain several outputs with label +1. To solve this, we evaluate a score for each value +1 obtained by the BT and select the output with the highest ... model, and the models with different parameters on the 1 The SSVM is obtained via http://svmlight.joachims.org/ 624 CLANG corpus 2 . Note that the numbers of in- dividual SSVMs in our ensem...

Ngày tải lên: 17/03/2014, 04:20

... transgenic models expressing mutant protein (M146L, A246E or PS1DE9), which were cross-bred with APP transgenic mice with the Swedish mutation, line C3-3 [58,91]. Other researchers cross-bred Tg2576 with ... reproducible functional studies with animal models of AD. Concluding remarks and future perspectives Transgenic techniques have revolutionized our ability to develop animal m...

Ngày tải lên: 16/02/2014, 09:20

... PR with the V32I mutation; PR I50V , PR with the I50V mutation; PR I54M , PR with the I54M mutation; PR I54V , PR with the I54V mutation; PR I84V , PR with the I84V mutation; PR L90M , PR with ... compared with PR WT –SQV. (B) PR I50V –APV compared with PR I50V –SQV. (C) PR I54M –APV compared with PR I54M –SQV. (D) PR I54V –APV compared with PR I54V –SQV. (E) PR I84V –APV...

Ngày tải lên: 18/02/2014, 04:20

... R3. The PCR product with a size of  1.6 kb was digested with BamHI to obtain a fragment between the two copper-binding site coding regions and ligated to pBlueScript pKSII(+) with T4 DNA ligase ... R3-1501 – than R3- 0337 – . This pattern agrees with the presence of two different enzymes with overlapping activities. Purification of two enzymes with different affinities for monophen...

Ngày tải lên: 19/02/2014, 07:20

... a pattern with which to expand it and then filling out that pattern with words drawn from a unigram distribution. This kind of coupled generative process can be naturally formalized with tree ... in bold, while the highest among the tree based models are marked with a bullet. The dotted line separates the tree based from non-tree based models. On the test set (Table 2), we only run...

Ngày tải lên: 19/02/2014, 19:20

... induced subdomains consistent within a document. Results Results for both settings are shown in Ta- ble 2. GTM models the latent topics at the document level, while LTM models each sentence as a ... opposite is true, with the LTM models achieving better per- formance. 6 On the NIST corpus, LTM-10 again achieves the best gain of approximately 1 BLEU and up to 3 TER. LTM performs on par...

Ngày tải lên: 19/02/2014, 19:20

... information ef- fectively into word alignment models. To con- firm the effect of the synonym pair model with latent topics, we also tested GIZA++ and HM- BiTAM with what we call Synonym Replacement Heuristics ... the SRH. We show the performance of GIZA++ and HM- BiTAM with the SRH in the lines entitled with SRH” in Table 1. The GIZA++ and HM-BiTAM with the SRH slightly outperformed...

Ngày tải lên: 20/02/2014, 04:20