... lem- mata for LPE and 5440 lemmata and punctuation marks for CL. We then determined the relevance of each of these lemmata for a given classifica- tion task by their gain ratio (Yang and Pedersen, ... examined separately for each task at hand, because in some cases, the ad- ditional information can indeed improve performance. 1 Introduction The greater the amounts...
Ngày tải lên: 22/02/2014, 03:20
... higher value almost 2.5-fold higher than the native cold adapted enzyme (Table 1). The mutant G26 1A/ Y26 9A exhibits an E a almost the same as in the case ofthenativeenzyme(Table1). Thermal inactivation ... aromatic ring of Tyr269, and these unfavorable interactions could lead to a decrease of local flexibility and an increased E a value. The validity of the above int...
Ngày tải lên: 22/02/2014, 04:20
Báo cáo khoa học: "Exploring the Sense Distributions of Homographs" docx
... an artefact of the sparse- data-problem as the number of undecided cases decreases faster than the number of correct cases increases. On the right half of Table 2 the results for the concordances ... give at least a partial answer. Our starting point is the observation that ambiguous words can usually be disambiguated by their con- text, and that certain context word...
Ngày tải lên: 08/03/2014, 21:20
Báo cáo khoa học: Exploring the GluR2 ligand-binding core in complex with the bicyclical AMPA analogue (S)-4-AHCP potx
... 21°). The apparent explanation for this is twofold. Firstly (S)-4-AHCP has an extra carbon atom between the a- amino acid and the distal anionic moieties compared with other 3-hydroxy isoxazole analogues. ... 2-amino-3-(3-hydroxy- 7,8-dihydro-6H-cyclohepta[d] -4-isoxazolyl)propionic acid (4-AHCP) was originally synthesized as a con- formationally restricted analogue of AMPA [25]....
Ngày tải lên: 30/03/2014, 16:20
Báo cáo khoa học: "Exploring the Potential of Intractable Parsers" pdf
... Specifi- cally A takes three arguments: a model vari- able Y of V L , a partial assignment x of V L , and integer n. The function A maps this 3- tuple to f alse if the variable Y should not be automatically ... ad- vantage of abandoning PCFGs is the opportunity to have a more flexible and adaptable probabilis- tic parsing model. Unfortunately, both Magerman and Ratnaparkhi...
Ngày tải lên: 31/03/2014, 01:20
Báo cáo khoa học: "Exploring the Characteristics of Multi-Party Dialogues" docx
... 4 act sequences 53.2 17.1 16.2 13.5 I 5 act sequences ABABA ABCAB 36.7 16.3 ABABC ABACA 10.2(each) Others 26.6 6 act sequences ABABAB ABCACB ABABAC Others ABCACA 31.8 18.2 9.1(each) ... differences of the participants' be- haviour between two- and three party informa- 587 Exploring the Characteristics of Multi-Party Dialogues Masato Ishizaki Japan Advanced In...
Ngày tải lên: 31/03/2014, 04:20
Báo cáo Y học: Exploring the primary electron acceptor (QA)-site of the bacterial reaction center from Rhodobacter sphaeroides Binding mode of vitamin K derivatives pptx
... hypothetical structures share the same features (Fig. 4 ). The additional m ethyl group shows a n intolerable van der Waals overlap with either the backbone atoms of AlaM260 and AlaM249 in case of ... from ideal distance; Da, deviation from ideal angular geometry). The values of DG 0 translat and DG 0 rot N rot consider the loss of translational and rotational freedom of...
Ngày tải lên: 31/03/2014, 21:21
Báo cáo khoa học: "Exploring Deterministic Constraints: From a Constrained English POS Tagger to an Efficient ILP Solution to Chinese Word Segmentation" ppt
... to the partially tagged character sequence. A character tagged with B al- ways occurs at the beginning of a possible word. Ta- ble 4 illustrates the constrained and raw input with respect to a ... which uses Ratnaparkhi (1996)’s feature set and conducts a beam (=5) search in the unconstrained space, achieves a tagging accuracy of 97.16%. Tagging accuracy is measured by...
Ngày tải lên: 07/03/2014, 18:20
Báo cáo khoa học: "On the German Locative: A Study in Symbols" pdf
... dependencies afford evidence for the claim that phrases of the form Ploc + dies + Nct are able to entail the adverb hier and that phrases of the form Ploc + jen + Nct are able to entail the ad- verbs ... syntactically the locative adverbs behave toward one another in nearly the same way that they behave toward locative prepositional phrases—all these linguistic phenom...
Ngày tải lên: 16/03/2014, 19:20
Báo cáo Y học: Expanding the scorpion toxin a-KTX 15 family with AmmTX3 from Androctonus mauretanicus pptx
... K + channels are isolated from various animal venoms and become key molecular probes for the characterization of these channels. They are usually small basic polypeptides (between 30 and 70 amino acids), ... min, at a flow rate of 1 mLÆmin )1 ; AUFS at 230 nm ¼ 1 (a) and at 280 nm (b) 3 . Inset: electrospray mass spectrum of AmmTX3. (C) Amino acid sequence of AmmTX3. The reduc...
Ngày tải lên: 23/03/2014, 21:20