Báo cáo khoa học: "Tagging Urdu Text with Parts of Speech: A Tagger Comparison" doc

... national language of Pakistan and is one of the official languages of India. The majority of the speakers of Urdu spread over the area of South Asia, South Africa and the United King- dom 1 . Urdu ... negation (NEG) and question words (QW) are handled as separate categories. Adjec- tival particle (A) , KER (KER), SE (SE) and WALA (WALA) are ambiguous entities which are ann...

Ngày tải lên: 08/03/2014, 21:20

... evaluate our method on a standard test corpus using different standard tagsets (a 45-tagset as well as a smaller 17-tagset), and show that our approach performs better than existing state -of- the-art ... leaving each node. We also create variables for every possible tag bigram and word/tag dictionary entry. We constrain link vari- able assignments to respect those grammar and dictionary...

Ngày tải lên: 17/03/2014, 01:20

... regular grammars into au- tomata (Kaplan and Kay, 1994; Mohri and Sproat, 1996; Grimley-Evans, Kiraz, and Pulman, 1996) do not make use of this important mechanism. This pa- per presents a method ... i.e., an unordered set of attribute=val pairs. An attribute is an atomic label. A val can be an atom or a variable drawn from a predefined finite set of possi- ble value...

Ngày tải lên: 24/03/2014, 03:21

... promoter of pET-22b(+) vector] as 5¢-primer and 5¢-TCTCCGTAGG GGAGACAAAAGT-3¢,5¢-ATCCCGCGGGGGAAACCT CATC-3¢ and 5¢-CTGTTTGGAC GAACGCAAGATG-3¢ as 3¢-primers for C53S, C175S and W88F variants, respec- tively ... subsequently for 10 min at 45 °C. The assay was started by the addition of porcine heart citrate synthase to a final concentration of 150 nm. Thermal aggre- gation of citrate s...

Ngày tải lên: 18/02/2014, 17:20

... models are a very popular tool in natural language processing, and are often lauded for per- mitting the use of “arbitrary” and “correlated” fea- tures of the data by a model. Users of log-linear models ... the state). We replaced the first occurrence of every tag and of every word in the training data with an OOV symbol, giving a fixed tag vocabulary of 46 and a fixed word...

Ngày tải lên: 20/02/2014, 12:20

... whether a semantic role such as the agent of an action, or a grammatical dependency such as the object of a verb. We call t the “target” because originally it referred to a vocabulary word targeted ... Proceedings of the Human Language Technology Conference and Annual Meeting of the North American Chapter of the Association for Computational Linguistics (HLT-NAACL), E...

Ngày tải lên: 22/02/2014, 03:20

... binding and coreference; at the same time, BT will be seen as a theory that states very general constraints (constraint schemata), which are then (at least in part) instantiated according ... element a such that a is in the interpretation of each other and told (a, b) is true. where b is also in the interpretation of each other and a; ~b; see (3) John and Mary told each oth...

Ngày tải lên: 22/02/2014, 10:20

... extracellularly as a ligand that either acts as a juxtacrine factor or mediates transactivation of a distant unknown recep- tor. Ectodomain cleavage would terminate RING-med- iated ubiquitination ... nuclear membrane. J Cell Biol 180, 763–769. 51 Isokane M, Hieda M, Hirakawa S, Shudou M, Nakashiro K, Hashimoto K, Hamakawa H & Higashiyama S (2008) Plasma-membrane-anchored growth fa...

Ngày tải lên: 15/03/2014, 00:20

... Laboratory. The X-ray wave- length was 0.154 nm with a beam geometry of $ 0.2 · 0.5 mm in a mica sandwich cell with a surface of 2 · 5 mm and a path length of 0.5 mm. Simultaneous SAXS and WAXS ... Kamauchi S, Nakamura N, Inoue H & Kanazawa H (2004) A conserved domain in the tail region of the Saccharomyces cerevisiae Na + ⁄ H + anti- porter (Nha1p) plays important r...

Ngày tải lên: 15/03/2014, 23:20

... has been found that PARN may partici- pate in various important intracellular processes, such as early development in plants and animals, by acting as a regulator of mRNA stability and translational efficiency ... T, Inoue M, Kigawa T, Kobayashi N, Guntert P, Tanaka A et al. (2008) The RRM domain of poly (A) -specific ribonuclease has a noncanonical binding site for mRNA cap analog re...

Ngày tải lên: 23/03/2014, 04:21