Báo cáo khoa học: "Structural, Transitive and Latent Models for Biographic Fact Extraction" pdf

... March – 3 April 2009. c 2009 Association for Computational Linguistics Structural, Transitive and Latent Models for Biographic Fact Extraction Nikesh Garera and David Yarowsky Department of Computer ... approaches to biographic fact extraction that model structural, transitive and latent proper- ties of biographical data. The ensem- ble of these proposed models...

Ngày tải lên: 17/03/2014, 22:20

... sive. Now consider the performance of our attach- ment procedure for the 880 standard test sen- tences. Table 2 shows the performance for the two human judges and for the lexical association ... (Altmann and Steedman 1988). Of course, if attachment am- biguity demands reference to semantics and dis- course models, there is little hope in the near term of building computa...

Ngày tải lên: 08/03/2014, 07:20

... important for both activ- ity and active site stability [32,33]. Kinetic properties and temperature stability The activity and stability of the Vibrio AP was mea- sured for each mutation, before and ... University of Iceland, for access to DNA sequencing; Pavol Cekan for help with EPR measurements; and Professor Leslie Fung at the Chem- istry Department, University of Chicag...

Ngày tải lên: 16/03/2014, 01:20

... when released. Monomeric and dimeric forms of PMAP-36 were chemically syn- thesized and their activity compared. Both forms assumed an amphipathic a-helical conformation and exhibited a potent and rapid microbicidal ... more subtle. In fact, both mono- meric and dimeric forms rapidly permeabilize bacterial membranes and cause bacterial killing, with the dimer being marginally mor...

Ngày tải lên: 30/03/2014, 20:20

... PST as a knowl- edge source for DA detection, we essentially need to model the relationship between the random DA and the random DR. Denote the random DA by X and the random DR by Y . Given a text ... z-score (Larsen and Marx, 2000) of each word w in the ASR output. Figure 3 illustrates the PST for the sentences: Where is the Anping-Fort. There are two keywords Where and Anping-Fo...

Ngày tải lên: 20/02/2014, 05:20

... in standard TSP. We create a binary (0/1) integer variable for each pair of hotels and . if and only if travel from hotel to hotel is on the itinerary. The objective function is straightforward: minimize: ... Computer Science University of Southern California Stanford University 4676 Admiralty Way, Suite 1001 Stanford, CA 94305 Marina del Rey, CA 90292 jahr@cs.stanford.edu germann,knigh...

Ngày tải lên: 20/02/2014, 18:20

... descendants, say z and y, a PAL expression for the phrase is one of the following forms: <z>( <V>) or <p>( <z>) where ~a> stands for a PAL expression for a phrase ~*. ... composite expressions are constructed only with a binary form of function application. Thus, if z and I/ are well-formed formulas of PAL, so is a form z(y). Expressions of PAL ar...

Ngày tải lên: 21/02/2014, 20:20

Ngày tải lên: 21/02/2014, 20:20

... paths for l = 4 and 2 paths for l = 5). Finally, the sense with the highest score (i.e. fruit 1 n ) is returned. 3 Experiments To test and compare the performance of our al- gorithm, we performed ... we perform: E := E ∪ {(s, s  )}; iii) For each sense s ∈ V , let gloss(s) be the set of content words in its part-of-speech tagged gloss. Then for each content word w  in gloss(s)...

Ngày tải lên: 22/02/2014, 02:20

... with a strand of siRNA, and the other siRNA strand was subsequently annealed to the aptamer-conjugated strand. These aptamer–siRNA conjugates were able to access HIV- infected cells and silence ... Exam- ples of antigens that have been used for cancer-tar- geted drug and gene delivery include HER-2 [98] and epidermal growth factor receptor [99]. For example, HER-2 siRNA-carrying l...

Ngày tải lên: 06/03/2014, 01:23