Báo cáo khoa học: "Unsupervised Word Alignment with Arbitrary Features" potx

... many-to-one word alignments, where each source word is aligned with zero or one target words, and therefore each target word can be aligned with many source words. Each source word is labelled with ... one-to-many alignments, where each target word is aligned with zero or more source words. Many-to-many alignments are recoverable using the standard techniques for superimposi...

Ngày tải lên: 20/02/2014, 11:21

... the interpretation of word senses. Different interpretations of word senses result in different so- lutions to word sense learning. One interpretation strategy is totreat a word sense as a set ... discovered tight clusters called committees by grouping top n words similar with target word using average- link clustering. Then the target word was assigned to committees if the simi...

Ngày tải lên: 20/02/2014, 16:20

... each word via a neural network, capturing the semantic similarity between words. Preliminary experiments improved the F1 score when using this word repre- sentation as a feature instead of the word ... argument instances. We chose a uniform Dirichlet prior with concentra- tion parameter as 0.1 for all the model parameters in Algorithm 1 (set roughly, without optimization 1 ). 50 train...

Ngày tải lên: 19/02/2014, 19:20

... and then use the pairwise alignment to find their best alignment to the segments of the story. Our model We evaluate our joint model of seg- mentation and alignment both with and without the split/merge ... restrict our model to alignment structures which agree with the given segmentation of the story. For all evaluations, we apply standard stemming algorithm and remove common stop...

Ngày tải lên: 20/02/2014, 04:20

... clusters with all the words from WordNet (WNS). For instance, the verbs buy and purchase correspond to the same cluster ID be- cause there exist a chain of SYNONYMOUS rela- tions between them in WordNet. ... set considers as grouping criteria the categorization of words from the WordNet lexicographer’s files (WNL). In addition, for each word that is not cov- ered in WordNet, we create a ne...

Ngày tải lên: 07/03/2014, 22:20

... to the learnt sub -word units. The algorithm, originally proposed for unsuper- vised learning of allophonic variations within a given phoneme set, has been adapted to learn without any knowledge ... speech with- out recourse to its phoneme set. We begin with a one-state HMM for all speech sounds and modify the SSS algorithm to successively learn the topol- ogy and parameters of HMMs wit...

Ngày tải lên: 08/03/2014, 01:20

... allosteric DNAzyme with dual RNA-cleaving and DNA-cleaving activities is very challenging. We used an in vitro-selected pistol-like (PL) DNAzyme as a DNA scaffold for designing a DNAzyme with dual catalytic ... As compared with PL DNAzyme, DRc DNA- zyme function seemed to have decreased sensitivity to the reaction temperature. DRc DNAzyme exhibited a broad functional range for temperatu...

Ngày tải lên: 16/02/2014, 15:20

... cisplatin DNA treatment correlated with the occurrence of sequence motifs forming stable bifunc- tional adducts with the drug (namely, GG and AG doublets) within the target sites. Binding of ... protein with cer- tain response elements can be controlled by changes in DNA topology inducing formation of non-B DNA structures within the binding sites [11,12]. Interactions of p53 with DNA...

Ngày tải lên: 19/02/2014, 05:20

... CYP6A2vSVL bind DDT or testo- sterone with the same apparent affinity. Sequence alignments and 3D localization of the mutated positions The sequence alignments of CYP6A2 with CYP2C5, CYP2C9 and CYP102A1 ... the peak and the valley on the spectrum [43]. Sequence alignment The alignments between CYP6A2, CYP2C5, CYP2C9 and CYP102A1 were obtained with the CLUSTALX software. To obtain infor...

Ngày tải lên: 19/02/2014, 12:20

... # of features, and metrics used. Our MT models are trained with standard phrase-based Moses software (Koehn and others, 2007), with IBM M4 alignments, 4gram SRILM, lexical ordering for PubMed and ... al., 2002) focuses on word- based n-gram precision, METEOR (Lavie and Agarwal, 2007) allows for stem/synonym matching and incorporates recall. TER (Snover et al., 2006) allows arbitrary ch...

Ngày tải lên: 19/02/2014, 19:20