extracting structured information from user queries with semisupervised conditional random fields

Ngày tải lên: 13/08/2014, 16:21

... 2006. c 2006 Association for Computational Linguistics Discriminative Word Alignment with Conditional Random Fields Phil Blunsom and Trevor Cohn Department of Software Engineering and Computer ... work in Section 6. Finally, we conclude in Section 7. 2 Conditional random fields CRFs are undirected graphical models which de- fine a conditional distribution over a label se- quence given an ... alignments, where each source word is aligned with zero or one target words, and therefore each target word can be aligned with many source words. Each source word is labelled with the index of its aligned target,...

Ngày tải lên: 20/02/2014, 11:21

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Ngày tải lên: 13/08/2014, 15:21

... identified and was isolated from the sur- rounding layers and freed from the tenacious adhe- sions with the muscular plane. The procedure in - volved hemostasis obtained with manual pressure and ... lesion removal. A first deep layer with Vicryl 3-0, slightly affecting the mus- cle fascia. A second subcutaneous deep layer with Monocryl 4/0 and a subderm layer with Monocryl 5/0. We used interrupted ... 5/0. We used interrupted sutures. The epithelial surface was closed with Dermabond. We recom- mended Light compression with Reston square for 4 days was applied followed by the use of a sticking...

Ngày tải lên: 25/10/2012, 11:35

... communicate with an interactive program, and it works well with ssh, telnet, ftp, and other interactive utilities. CHAPTER 17 ■ AUTOMATING USER INPUT WITH EXPECT 109 The -c switch is for user- provided ... is displayed whenever the script finds a problem with the command-line call the user provided. The script gets the information it needs from the user on the command line, so we check that switches ... is no further reply from it 108 CHAPTER 17 ■ AUTOMATING USER INPUT WITH EXPECT A Shell Script to Customize Parameters for an expect Script The first script obtains the user input necessary...

Ngày tải lên: 05/10/2013, 08:51

... the user selects an MP3 file from the list and clicks the play_btn instance, that MP3 file not only plays, but its ID3 tag data is extracted and displayed in the text fields on the Text Fields ... that XML object to ignore any spaces within the loaded XML document because keeping these spaces could prevent our script from accurately locating data within the file. The next line creates ... on the Background layer. There are five text fields on the Text Fields layer: song_txt, artist_txt, year_txt, URL_txt, and comments_txt. These fields will eventually be used to display extracted...

Ngày tải lên: 07/11/2013, 15:15

... the user has permission to view. Like any other views, information schema views can also be joined in queries or participate in complex queries to extract specific information. For detailed information ... Database Schema Information from SQL Server Problem You need to retrieve database schema information from a SQL Server database. Solution Retrieve table schema information using either information ... DOMAIN_CONSTRAINTS User- defined data types with a rule bound to them DOMAINS All user- defined data types KEY_COLUMN_USAGE Columns constrained as a key PARAMETERS All parameters for user- defined...

Ngày tải lên: 24/12/2013, 05:15

... user scenarios are gathered from interviews with users and from direct observations of their work. Interviews are also conducted with others involved in the context of use (e.g., managers). From ... the obstacles users face in their current work tasks and the facilitators that are present to assist them to accomplish their goals. The information gathered from users is then merged with the marketing information ... in terms of transforming models, beginning with important user background information and ending with a concrete representation of how a user will interact with an application. In contrast to a well-defined...

Ngày tải lên: 16/01/2014, 16:33

... to eliminate non- comparative sentences only from comparative sentence candidates with a CKL2 keyword. 4 Eliminating Non-comparative Sen- tences from the Candidates 3 As you can see in ... non-comparative sen- tences from comparative sentence candidates with a CKL2 keyword, we employ machine learning techniques (MEM and Naïve Bayes). For feature extraction from each comparative- sentence ... sentences from the candidates. As a result, we achieved signifi- cant performance, an F1-score of 88.54%, in our experiments using various web documents. 1 Introduction Comparing one entity with...

Ngày tải lên: 20/02/2014, 09:20

... polypeptide, with a predicted molecular mass of 27.6 kDa (Fig. 1). Sequence identity ranging from 18 to 25% was obtained with human GST-theta, mouse p28, rat DHA, human GSTO 1-1, as well as with several ... analysis of SmGST. DNA from S. mansoni cercaria (10 lg) digested with different restriction enzymes was hybridized with the coding region of SmGST-O cDNA radiolabeled by a random primer. 5516 J. ... sequence BLAST search of the S. mansoni EST database with the complete sequence of Tc52 revealed a clone (EST AI975843) with around 25% sequence identity with the GST-like domain of the T. cruzi protein....

Ngày tải lên: 21/02/2014, 01:21

... so that they work with our approach of distinguishing markers from ordinary symbols. So to begin with, we provide macros to describe the alphabet and the alphabet extended with marker symbols: ... E should describe a recognizer. E is com- posed with the universal transducer, which trans- duces from anything (?*) to anything (?*). Now with this background, we can define the condi- tionah ... sharply with the rewriting rules that follow the tradition of Kaplan & Kay:  ~ Âl:~__p (2) In this case, any string from the language  is replaced by any string independently chosen from...

Ngày tải lên: 22/02/2014, 03:20

... hydrolase from Arthrobacter sp. KI72 [4,7] NylBÂ Wild-type carboxylesterase with b-lactamase fold from Arthrobacter sp. KI72 (88% homology to NylB) [79] Hyb-24 NylB NylBÂ hybrid protein constructed from ... Asp181-COO ) stabilizes substrate binding by electrostatic interactions with Ald-NH ỵ 3 [12]. However, the role of Asn266 was still unclear. In addition, random mutagenesis experiments with the parental carboxylesterase (Hyb-24) ... of the loop region (N167–V177), and flip-flop of Tyr170, resulting in the transition from open to closed forms. From the comparison of the three-dimensional structures of various mutant enzymes...

Ngày tải lên: 07/03/2014, 00:20

... aspect of user- generated text. While review mining has been studied extensively, we differ from previous work in that instead of fo- cusing on evaluative information, we focus action- able information ... reviews from allrecipes.com, an active community where we es- timate that the mean number of reviews per recipe is 54.2. We randomly selected 22,437 reviews for our data set. Of these, we randomly ... with one renement segment label and one background segment label 5 : ã RS-MixHMM: A mixture of HMMs (Eq. 2) with constraints (1) and (2) (see Section 4). ã RS-MixMix: A variant of RS-MixHMM with- out...

Ngày tải lên: 07/03/2014, 18:20

... Travel Information from Blogs Data sets and experimental settings To confirm that travel blogs are a useful informa- tion source for the extraction of travel informa- tion, we extracted travel information ... blogs: 80,000 sentences from 1,100,000 blog entries.  Generic webs: 80,000 sentences from 470M web sentences (Kawahara and Kuro- hashi, 2006). We extracted travel information (location- name/local-product ... (location- name/local-product pairs) from each information source, and ranked them by their frequencies. Evaluation We used the Precision value for the top-ranked travel information defined by the...

Ngày tải lên: 08/03/2014, 01:20