a general feature space for automatic verb classification

... classification using a general feature space. Master’s thesis, University of Toronto. Joanis, E., Stevenson, S., and James, D. (2007). A general feature space for automatic verb classification. Natural Language ... reported for the overall n-way classification for each selected n, is obtained by averaging the results from each in- dividual n-way task for that particular n. Again, for each trial, each feature ... single evaluation measure - macro-averaged recall - for all of our classification tasks. As discussed below, since we always use balanced training sets for each indi- vidual task, it makes sense for...

Ngày tải lên: 20/02/2014, 09:20

... of a genre classification system. Automatic identification of text types and genres represents a great advantage in many fields because manual annotation is expensive and time-consuming. Apart ... further research the assessment of the model as a whole. In this paper, we report a partial evaluation based on single-label classification accuracy and predictions. From a theoretical point ... be beneficial for automatic genre identification, because many features used for this task are extracted from the output of taggers and parsers, such as POS frequencies and syntactic constructions....

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... framework 10. A general framework for studying class consciousness and class formation In one way or another, most class analysts believe that at the core of class analysis is a relatively simple causal ... and class formation, but rather as a framework for de®ning an agenda of problems for empirical research within class analysis. In the multivariate empirical studies of class conscious- ness and ... ®rst explain limitation and transformation. Figure 10.3 illustrates the general abstract relation between limitation and transformation: structures impose limits on practices; practices transform...

Ngày tải lên: 01/11/2013, 07:20

... excess of information. FAQ-pages tend to also answer questions which are not asked, and also con- tain practical examples. Human-powered answers often contain unrelated information and discourse- like ... each paid reward. • Qualifications To improve the data quality, a HIT can also be attached to certain tests, “qualifications” that are either system-provided or created by the requester. An example ... Takaaki Hori, and Sadaoki Furui. 2003. Evaluation Methods for Automatic Speech Summa- rization. In In Proc. EUROSPEECH, volume 4, pages 2825–2828, Geneva, Switzerland. Valentin Jijkoun and Maarten...

Ngày tải lên: 20/02/2014, 09:20

... same family of metrics explain best the variations obtained with human evaluations, according to the application being evaluated (Machine Translation, Automatic Summarization, and Automatic ... evaluation metrics are able to closely approximate human evaluations for various applications. Given an application app and an evaluation guideline package eval, the faithfulness/compactness ... separately evaluated. Each version was evaluated by a human evaluator, with no reference answer available. For this evaluation 115 test questions were used, and the human evaluator was asked...

Ngày tải lên: 20/02/2014, 16:20

... DOLCE. AI Magazine, 24(3):13–24. Eric Joanis, Suzanne Stevenson, and David James. 2008? A General Feature Space for Automatic Verb Classifi- cation. Natural Language Engineering. To appear. Judith ... approaches to an automatic induction of semantic verb classifications. For example, Siegel and McKeown (2000) used several machine learn- ing algorithms to perform an automatic aspectual classification ... Empirical Methods in Natural Language Processing and Com- putational Natural Language Learning, Prague, Czech Republic. Naftali Tishby, Fernando Pereira, and William Bialek. 1999. The Information Bottleneck...

Ngày tải lên: 08/03/2014, 01:20

... measure of relatedness does (low y values for small x values and high y values for high x). The same pattern applies in the M&C and 353-C data sets. 4.2 Evaluation of the GVSM For the evaluation ... query, are computed similarly. A GVSM model aims at being able to retrieve documents that not necessarily contain exact matches of the query terms, and this is its great advantage. This new space ... com- pactness of two senses s 1 and s 2 , can take differ- ent values for all the different paths that connect the two senses. All these paths are examined, as explained later, and the path with...

Ngày tải lên: 08/03/2014, 21:20

... split a feature space into n- disjoint subspaces, and select an equal amount of features for each fea- ture subspace. 2. dimension-based-split: split a feature space into disjoint subspaces based ... (1994) and Berger et al. (1996), training starts with a uniform distribution over all values of y and an empty feature set. For each candidate feature in a predefined feature space, it computes ... Preposi- tional Phrase Attachment. In Proceedings of the ARPA Workshop on Human Language Technology, 250-255, Plainsboro, NJ, USA. Jeffrey C. Reynar and Adwait Ratnaparkhi. 1997. A Maximum Entropy Approach...

Ngày tải lên: 17/03/2014, 04:20

... Indian religion is known as Brahmanism. Brahma, an impersonal essence, is conceived as the primal existence. Forth from Brahma emanated, as heat and light emanate from the sun, all things and ... and Lapps, and the Basques, in Europe; (5) the Esquimaux and the American Indians. Languages of these peoples are monosyllabic or agglutinative. (Note that the Malays and American Indians ... Negroid and Australoid.) YELLOW RACE (Turanian, or Mongolian). (1) The Chinese, Burmese, Japanese, and other kindred peoples of Eastern Asia; (2) the Malays of Southeastern Asia, and the inhabitants...

Ngày tải lên: 22/03/2014, 22:20

... 1T n-gram features was somewhat mixed. They had a positive impact on the Ó Séaghdha data, but their affect upon our dataset was limited and mixed, with the removal of the 4-gram features actually improving ... by far the largest hand-annotated compound noun dataset in existence that we are aware of. Proper nouns were not included. The next largest available datasets have a vari- ety of drawbacks for ... interpreta- tion in general text. Kim and Baldwin’s (2005) dataset is the second largest available dataset, but inter-annotator agreement was only 52.3%, and the annotations had an usually lopsided...

Ngày tải lên: 23/03/2014, 16:20

... Lexical Chain Features 4.1 Chain starts and ends We follow (Chan et al. 2007) to model the lexi- cal chain starts and ends at a story boundary with a statistical distribution. We apply a window ... a Single Lexical Chain Feature Given an utterance boundary with the lexical chain feature, X, we compare the conditional probabilities of observing a boundary, B, or non- boundary, B , as ... segmentation based on statistical model- ing of one or more lexical chain features. Automatic story segmentation aims to lo- cate the instances in time where a story ends and another begins. A lexical...

Ngày tải lên: 23/03/2014, 17:20

... Sameer Pradhan, Kadri Hacioglu, Valeri Krugler, Wayne Ward, James H. Martin and Daniel Jurafsky. 200 5a. Support vector learning for semantic argument classi- fication. Journal of Machine Learning ... with feature selection for Natu- ral Language processing tasks. ACL-2004 Vladimir N. Vapnik. 1998. Statistical Learning Theory. Wiley Nianwen Xue and Martha Palmer. 2004. Calibrating features ... Sameer Pradhan, Wayne Ward, Kadri Hacioglu, James Martin and Daniel Jurafsky. 2005b. Semantic role la- beling using different syntactic views. ACL-2005 Vasin Punyakanok, Dan Roth, Wen-tau...

Ngày tải lên: 23/03/2014, 18:20

... a reliably annotated gold standard to support experimenting with such applications. This research is also a case study of ana- lyzing and improving manual tagging that is applicable to any ... tagging task. We perform a statistical analysis that provides information that complements the information provided by Cohen's Kappa (Cohen, 1960; Carletta, 1996). In particular, we analyze ... ing manual results in as much as a 16 point im- provement in pairwise Kappa values, and raises the average agreement among the judges to a Kappa value of over 0.87 for the sentences that can...

Ngày tải lên: 23/03/2014, 19:20