Báo cáo khoa học: " Improved Automatic Detection of Zero Subjects and Impersonal Constructions in Spanish" docx

... variety of subjects occurring in the training data. In addition, reach- ing a precision of 92.0% for explicit subjects us- ing just 20% of the training data is far more ex- pensive in terms of the ... algorithms, including JRip in WEKA (M ¨ uller, 2006), with precision of 74% and recall of 60%, and K-nearest neighbors in TiMBL: both in (Evans, 2001) with precis...

Ngày tải lên: 31/03/2014, 21:20

... request. 575 velopment, training, and test corpora with roughly 12,000 word tokens in each of the development and test corpora, and 120,000 words in each of the train- ing corpora. We will refer to the training corpora ... as TR1 and TR2, and to the test corpora as, TE1 and TE2. We report results on both TE1 and TE2 be- cause of the differences in the two parts of...

Ngày tải lên: 20/02/2014, 15:20

... dis- tinct narrow time interval of transcription initiation [25], and regulate transactivation of several endoderm- and hepatocyte-specific factors, including transthyretin, albumin and tyrosine aminotransferase ... °C. Finally, the chip was rinsed in 0.05· SSC before drying by low-speed centrifugation. For staining, the chip was immersed in an NaCl ⁄ P i solution containing 10 l...

Ngày tải lên: 30/03/2014, 04:20

... lemmatization and removal of words on the stop list); let B be a list of boundaries, initialized to contain only the boundary corresponding to the beginning of the series of articles, 0. Maintain B in ... manually, by examining a graph, or automatically, using an optimization algorithm. The results of two ex- periments involving automatically locating boundaries between a...

Ngày tải lên: 08/03/2014, 07:20

... the results of McCallum and Nigam (1998) (see also Larkey and Croft (1996) for descriptions of additional applications). In Larkey (1998), sets of essays used for training scoring models typically ... Sage Publ. Larkey, L. and Croft, W. B. (1996). Combining Classifiers in Text Categorization. Proceedings of SIGIR, 289-298. Larkey, L. (1998). Automatic Essay Grading...

Ngày tải lên: 31/03/2014, 04:20

... comparison of the position of the a-acetamide side chain of pyrrole ring A of the corrin ring in the glycerol dehydratase-bound cobalamin (Fig. 4Ca) with those in the diol dehydratase-bound cobalamins. ... b D , and the N-terminal 36 residues and the C-terminal three residues of c D were missing in the reported structure of diol dehydratase [9]. In addition, a G and...

Ngày tải lên: 21/02/2014, 03:20

... Docking proteins are recruited to the site of RTK activation at the plasma membrane, they reinforce binding by virtue of a receptor-binding domain (often a phosphotyro- sine-binding domain) and ... 2010) doi:10.1111/j.1742-4658.2010.07864.x In this series of four minireviews the field of scaffold proteins and proteins of similar molecular ⁄ cellular functions is overviewed. By...

Ngày tải lên: 06/03/2014, 22:21

... treatment. To investigate whether HU induces an increase of the Hat1 protein, we used a yeast strain expressing a hemagglutinin (HA)-tagged version of Hat1. The Hat1–HA protein level did not increase ... pro- cess. In yeast, the substitution mutation of Lys5 and Lys12 of histone H4, in combination with deletion of the histone H3 N-terminus, does not result in defective chrom...

Ngày tải lên: 07/03/2014, 05:20

... mismatch in duplex DNA contributes an ele- ment of instability resulting in lowering of the melting temperature and increase in free energy. Surprisingly, the presence of a mismatch in PNAÆDNA ... loss of hydrogen bond and weak stacking and also (b) entropic and enthalpic contribution resulting from the nature of interaction of water in the vicinity of mismatch...

Ngày tải lên: 07/03/2014, 21:20

... in this setting indicate the pos- sibility of domain adaptation, and the portability of the training methods of the parsers. Since the parsers listed in Section 2 have programs for the training 10 Some ... Duffy antigen by distinct mechanisms. The molar ratio of serum retinol-binding protein (RBP) to transthyretin (TTR) is not useful to as- sess vitamin A status during infection...

Ngày tải lên: 08/03/2014, 01:20