Tài liệu Báo cáo khoa học: "Improved Smoothing for N-gram Language Models Based on Ordinary Counts" doc

... estimating N-gram language models. Kneser-Ney smoothing, however, requires nonstandard N-gram counts for the lower- order models used to smooth the highest- order model. For some applications, this makes ... the ACL-IJCNLP 2009 Conference Short Papers, pages 349–352, Suntec, Singapore, 4 August 2009. c 2009 ACL and AFNLP Improved Smoothing for N-gram Language Models...

Ngày tải lên: 20/02/2014, 09:20

... disambiguation using ma- chine readable dictionaries: How to tell a pine cone from an ice cream cone. In Proceedings of the 5th Annual Confer- ence on Systems Documentation, Toronto, Ontario, Canada, pp. ... applications such as word sense disambiguation (Kohomban & Lee, 2005; Patward- han et al., 2005), information retrieval (Finkelstein et al., 2002), information extraction pattern in...

Ngày tải lên: 20/02/2014, 12:20

... value of k, based on finding when the changes in H 2 as k increases are no longer significant. 2.1 PK1 The P K1 measure is based on (Mojena, 1977), which finds clustering solutions for all values ... and standard deviation of the criterion function. Then, a score is computed for each value of k by sub- tracting the mean from the criterion function, and dividing by the standard deviat...

Ngày tải lên: 22/02/2014, 02:20

... мед (honey), лекарство (medicine). For every expression, the typical context set con- sists of the first 10 articles retrieved by searching Google for the expression. In order to construct the second ... 67–72, Uppsala, Sweden, 13 July 2010. c 2010 Association for Computational Linguistics A Framework for Figurative Language Detection Based on Sense Differentiation Daria Bogdano...

Ngày tải lên: 07/03/2014, 22:20

... quantify the contribution of each component of the algorithm. We ran the base distributional algorithm, a variant which uses only capitalization information (i.e., has only one non- singleton morphological ... before the former, for clarity of presenta- tion we begin by detailing the base distributional algorithm. In the next section we describe the mor- phological representation and its in...

Ngày tải lên: 20/02/2014, 04:20

... gene expression at 1 l M or higher concentration of RG-102240, 0.04 l M or higher concentra- tion of RG-102317, 5 l M or higher concentration of PonA and 25 l M or higher concentration of MurA ... new two-hybrid format switch functions through heterodimeri- zation and ligand binding followed by conformational change in both receptors resulting in transactivation of genes placed under the cont...

Ngày tải lên: 21/02/2014, 00:20

... noninhibitory conforma- tion. Glyphosate sensitivity is partly restored by muta- tion of Ala100 to glycine, allowing glyphosate to bind in its extended, inhibitory conformation. Detoxification ... 0.03 a One unit corresponds to the conversion of 1 lmol of glyphosate per minute, at 30 °C. Table 2. Evolution of a GO variant active on glyphosate; comparison of the apparent kinetic parameters f...

Ngày tải lên: 14/02/2014, 14:20

... protein modification sites and confor- mations. Cellular kinases ⁄ phosphatases affect a wide variety of phosphorylation sites on one protein. Following phosphorylation ⁄ dephosphorylation, succes- sive ... from phosphorylation-induced apoptotic pathways Cell signal transduction is regulated by the biochemical modification of proteins that alters their conformation, stabilization, reaction to...

Ngày tải lên: 14/02/2014, 22:20

... access to information on glyc- ogenes. In the GGDB, the information on each glyco- gene is stored in XML format: gene names (gene symbols), enzyme names, DNA sequences, tissue distri- bution (gene ... tool for a ‘cell profiler’, and it is expected to be applicable for selection of cancer-specific lectins and for quality control of stem cells before transplantation [12–15]. Recently, w...

Ngày tải lên: 16/02/2014, 08:20

Ngày tải lên: 18/02/2014, 03:20