Báo cáo khoa học: "Instance-based Evaluation of Entailment Rule Acquisition" pot

... learned rules are context sensitive, stressing the need to learn contextual constraints for rule applications. 2 Background: Entailment Rules and their Evaluation 2.1 Entailment Rules An entailment rule ... rules, termed the instance-based approach. At the heart of this ap- proach, human judges are presented not only with a rule but rather with a sample of examples of the...

Ngày tải lên: 08/03/2014, 02:21

... grammar, rhythm and flow, appropriateness of tone, and several other specific characteristics of good text. In terms of automatic evaluation, we are not aware of any technique that measures only fluency ... Methods PoStag In the first of these, we constructed a rough approximation of typical sentence grammar structure by taking bigrams over part -of- speech tags. 6 Then, given a stri...

Ngày tải lên: 20/02/2014, 12:20

... construction of N-best translation lexicons from parallel text. Melamed (1995) used the ratio (LCSR) between the length of the LCS of two words and the length of the longer word of the two ... section, we present the evaluations of ROUGE-L, ROUGE-S, and compare their per- formance with other automatic evaluation meas- ures. 5 Evaluations One of the goals of developing...

Ngày tải lên: 20/02/2014, 16:20

... Proceedings of the 12th Conference of the European Chapter of the ACL, pages 112–120, Athens, Greece, 30 March – 3 April 2009. c 2009 Association for Computational Linguistics Human Evaluation of a ... can only give a rough im- pression of the quality of the system output. It is unclear, however, what kind of metric would be most suitable for the evaluation of string real...

Ngày tải lên: 22/02/2014, 02:20

... performance of each single ad (its persuasiveness, from our point of view): • CTR, Click Through Rate: measures the num- ber of clicks divided by the number of impres- sions (i.e. the number of times ... effectiveness of different linguistic choices. The experiments reported in this paper are illustrative ex- amples of the method proposed and are concerned with the evaluation...

Ngày tải lên: 07/03/2014, 18:20

... about 76 ngÆlL )1 of membrane preparation could be identi- fied as FpoF and about 4 ng of FpoF could be detected per lL of cytoplasm. Taking into account the protein concentrations of these preparations ... cell lysates of the DfpoA-O mutant or the DfpoF mutant was in the range of 5 mUÆmg )1 of protein and hence 10-fold higher than the rate of H 2 production from F 420 H 2 in t...

Ngày tải lên: 14/03/2014, 23:20

... year of evaluation to the next. 5.2 Evaluation of rankings We examine the predictive power of our features for each of the five linguistic quality questions in two settings. In system-level evaluation, ... of systems, ignoring the linguistic quality of the system out- put. Part of the reason for this imbalance is the existence of ROUGE (Lin and Hovy, 2003; Lin, 2004), the...

Ngày tải lên: 16/03/2014, 23:20

... Linguistics Automatic Evaluation of Chinese Translation Output: Word-Level or Character-Level? Maoxi Li Chengqing Zong Hwee Tou Ng National Laboratory of Pattern Recognition Institute of Automation, ... is usually adopted as the smallest unit in most tasks of Chinese language processing. However, for automatic evaluation of the quali- ty of Chinese translation output...

Ngày tải lên: 17/03/2014, 00:20

... possibilities of creation of a free radical site, positive or negative, in this sequence by methods of quantum chemistry [35]. The aim was to see if any of this Fig. 4. MALDI-TOF mass spectra of fragments ... Rate constants of LRET, number and location of Tyr and Trp residues, for the various lysozymes. Lysozyme source (No. of amino acids) Number of Trp/ molecule (position)...

Ngày tải lên: 17/03/2014, 10:20

... recover the true weights of the given STSG, and hence the incon- sistency of the estimator with respect to the class of STSGs. Although usually cited as showing the inad- equacy of DOP1, Johnson’s ... simple com- binations of the frequencies f 1 . . . f 4 . Observa- tions of these frequencies therefore do not add any extra information, and the problem of fi nd- ing the weights o...

Ngày tải lên: 17/03/2014, 22:20