instance weighting for domain adaptation in nlp

Ngày tải lên: 31/03/2014, 01:20

... poten- tial training text, and opens new research oppor- tunities, for instance experiments with clustered training data. 2 Domain Adaptation for Translation Models To motivate efforts in domain adaptation, ... 2010. Discriminative instance weighting for domain adap- tation in statistical machine translation. In Proceed- ings of the 2010 Conference on Empirical Methods in Natural Language Processing, pages ... DE–FR. Domain: Alpine texts. Full IN TM: Using the full in -domain parallel corpus; small IN TM: using 10% of available in -domain parallel data. weights. 12 However, the difference is smaller for the...

Ngày tải lên: 17/03/2014, 22:20

Ngày tải lên: 30/03/2014, 21:20

Ngày tải lên: 22/06/2014, 19:20

... value. Now, distribute all the instances in the new dataset D into the bins according to their posterior probabilities . Let B , for , denote the set of instances in bin . Note that B B B = . Now, ... corpus. In our recent work (Chan and Ng, 2005b), we directly addressed the problem by applying ma- chine learning methods to automatically estimate the sense priors in the target domain. For instance, given ... learning algorithms for word sense disambiguation. In Proc. of EMNLP02. Diana McCarthy, Rob Koeling, Julie Weeds, and John Carroll. 2004. Finding predominant word senses in untagged text. In Proc....

Ngày tải lên: 08/03/2014, 02:21

... maximize: p(s) n  j=1 p(f j |s) In our domain adaptation study, we start with a WSD system built using training examples drawn from BC. We then investigate the utility of adding additional in -domain training data from ... learning for domain adaptation, fol- lowed by count-merging. Next, we describe an EM- based algorithm to estimate the sense priors in the new domain. Performance of domain adaptation us- ing active ... not only in showing that active learning can be successfully employed to reduce the annotation effort required for domain adaptation in a fine-grained WSD setting. More importantly, our main focus...

Ngày tải lên: 08/03/2014, 02:21

... for domain adaptation. In Neural Information Processing Systems (NIPS). John Blitzer, Ryan McDonald, and Fernando Pereira. 2006. Domain adaptation with structural correspon- dence learning. In ... actually outperforms the in -domain classifier. This is possi- ble since the unlabeled data may contain information that the in -domain classifier does not have access to. At the beginning of Section ... domain. The baseline is a lin- ear classifier trained without adaptation, while the gold standard is an in -domain classifier trained on the same domain as it is tested. Figure 1 gives accuracies for...

Ngày tải lên: 08/03/2014, 02:21

... establish baseline performance for the domains. In these ex- periments, we built a translation model based only on the Parliament proceedings. We then tune it us- ing the small amount of target -domain tuning ... For each domain, the percentage of target do- main word tokens that are unseen in the source domain, together with the most frequent English words in the tar- get domains that do not appear in ... perfor- mance. (For instance, if all unknown words are names, then copying them verbatim may be suffi- cient.) (2) Extend known methods for mining dic- tionaries from comparable corpora to the domain adaptation...

Ngày tải lên: 17/03/2014, 00:20

... personality as a function of interaction style; its simple protocol specifies conditions for interrupting user speech for permitting interruption by the user, when to initiate repair dialogues, ... assumes increasing decision power for processing flow, in cases of dialogue segment type with which it is familiar. The intended contribution of this work is thus in the generic definition ... Context Tracking The Context Tracker maintains a record of the discourse context which it and other components can consult in order to (a) resolve dependent forms that occur in input utterances...

Ngày tải lên: 17/03/2014, 07:20

Ngày tải lên: 23/03/2014, 18:20

Ngày tải lên: 30/03/2014, 21:20

Ngày tải lên: 31/03/2014, 03:20

Ngày tải lên: 21/06/2014, 07:20

Ngày tải lên: 22/06/2014, 23:20

Ngày tải lên: 04/10/2012, 10:02

... loading of pravastatin into erythrocytes was directly proportional with increase of drug concentration in the incubation medium, in the 2-10 mg/ml concen- tration range. This finding is in concurrence ... pharmacokinetics and pharmacodynamic properties of statins including inhibition of the metabolism [5], administration of statins with certain juices [6] or in- hibition of Pgp [3]. Unfortunately ... including vinblastine, chlor- promazine, hydrocortisone, propranolol, tetracaine, retinol, and primaquine [16, 19]. The current work aims to study the encapsula- tion of pravastatin in human...

Ngày tải lên: 25/10/2012, 11:10

... serum obtained from patients with positive IgG cardiolipin antibodies interfered with protein C activation [2]. Protein C activation is dis- turbed in patients with APS [17]. Since protein C is ... difference in effectiveness for sec- ondary prevention between single antiplatelet (aspi- rin) and single anticoagulant (warfarin) therapy. Derksen [15] examined the effect of low-dose aspirin after ... antiphospholipid-induced thrombosis: effects on the protein C system. Curr Rheumatol Rep. 2009; 11: 77-81. 17. Li TH, Chen TH, Lin HS, et al. Uncoupling of protein C and antithrombin Ш activitiy in cerebral...

Ngày tải lên: 26/10/2012, 09:48

... evaluated at baseline and after 12 weeks of training with three training sessions per week. The main findings are: Fasting glucose concentrations remind unchanged after training. The area under ... training effects on glycemic control rather then a chronic adaptation to training originates from the findings of Fenicchia et al. [5] and Ostergard et al. [13]. In the first study a single ... pre-training, hollow bars = post-training. mean ± SE. Figure 4: Glucose plasma-concentrations during OGTT before (black) and after the training period (hollow). Left top: Flexibility training...

Ngày tải lên: 26/10/2012, 10:04

Ngày tải lên: 05/11/2012, 14:32

... improvements. 2.1.3. Teaching business letter writing In business communication, letters play a very important role in establishing and maintaining business relationships, both within a company and with ... learning English as most respondents (38/42) accounting for 90% say that they study English for finding a good job in the future. The remaining accounting for 10% claim that they study English for ... learning-teaching in general, and business correspondence writing in particular. 3. Scope of study This research focuses on finding out suitable techniques for teaching students to write business...

Ngày tải lên: 07/11/2012, 14:31