semantic representation of sentences

Ngày tải lên: 17/03/2014, 09:20

Ngày tải lên: 30/03/2014, 21:20

... structured representation of semantic knowledge (e.g. word-senses) has been defined at the IBM Scientific Center of Roma, as part of a project on Italian Text Understanding. This representation, ... study of examples found in the analyzed domain. The final set is a trade-off between two competing requirements: 2. A large number of conceptual relations improves the expressiveness of the representation ... the other system components. The semantic processor consists of a semantic knowledge base and a parsing algorithm. The semantic data base presently consists of 850 word-sense definitions; each...

Ngày tải lên: 09/03/2014, 01:20

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Ngày tải lên: 22/12/2013, 12:54

Ngày tải lên: 22/12/2013, 12:54

... respect of semantics, “glad” and “pleased” have one of their senses of denoting the feeling of pleasure when something good has happened. “Cheerful” has one of three senses suggesting one of the ... Grammatical features and semantics of “Glad” “Glad” has a number of the syntactic functions as head of an adjectival phrase, N.T.T. Huong, N.T.V. Lam / VNU Journal of Science, Foreign Languages ... happy choice of the words. The happy choice and the correct use of the words by the translators, as a matter of fact, are subject to the mastering of the grammatical features and semantic structures...

Ngày tải lên: 12/02/2014, 20:20

... Linguistics Understanding the Semantic Structure of Noun Phrase Queries Xiao Li Microsoft Research One Microsoft Way Redmond, WA 98052 USA xiaol@microsoft.com Abstract Determining the semantic intent of web queries ... the semantic structure of noun phrase queries, i.e., IHs, IMs and the semantic labels of IMs. In particular, we investigate the use of transition, lexical, semantic and syntactic features. The semantic ... respectively. For both A3 and A4, the number of such semantic features is equal to the number of lexicons multiplied by the number of state labels. The same source of semantic knowledge can be conveniently...

Ngày tải lên: 20/02/2014, 04:20

... semantic orientation of for- eign words. Identifying the semantic orienta- tion of words has numerous applications in the areas of text classification, analysis of prod- uct review, analysis of ... Linguistics Identifying the Semantic Orientation of Foreign Words Ahmed Hassan EECS Department University of Michigan Ann Arbor, MI hassanam@umich.edu Amjad Abu-Jbara EECS Department University of Michigan Ann ... online discussions. Identifying the semantic orientation of English words has been extensively studied in literature. Most of this work assumes the existence of resources (e.g. Wordnet, seeds,...

Ngày tải lên: 20/02/2014, 05:20

... paper we explore the utility of the Naviga- tion Map, a graphical representation of the dis- course structure. As our first step towards under- standing the benefits of the NM, we ran a user study ... Aspects of Coherence in Student Essays. In Proc. of HLT-NAACL. J. Hirschberg and C. Nakatani. 1996. A prosodic analy- sis of discourse segments in direction-giving mono- logues. In Proc. of ACL. ... perception of the system. We find that the NM presence significantly improves user’s perception of the system in terms of their ability to concen- trate on the instruction (Q3), in terms of their...

Ngày tải lên: 20/02/2014, 12:20

... in this paper was twofold. Firstly, we wanted to compare the performance of different machine learning algorithms on the task of map- ping from a vector of web frequencies of para- phrases containing ... which one of the nouns modifies another semantically in this context. We excluded deter- miners on the basis that the presence of a deter- miner does not affect the semantic properties of the interaction ... mechanisms of these different learning approaches will be discussed briefly in Section 4. 3 Related Work 3.1 Web Mining Much of the recent work conducted on the problem of assigning semantic...

Ngày tải lên: 20/02/2014, 12:20

... : ¯x new i =  x i x i exp  βx i  j w ij ¯x old j   x i exp  βx i  j w ij ¯x old j  . (7) 4 Extraction of Semantic Orientation of Words with Spin Model We use the spin model to extract semantic orienta- tions of words. Each spin has a direction taking one of two values: up or ... proposed a method for ex- tracting semantic orientations of words with boot- strapping. The semantic orientation of a word is determined on the basis of its gloss, if any of their 52 hand-crafted rules ... Analysis We investigated a number of errors and concluded that there were mainly three types of errors. One is the ambiguity of word senses. For exam- ple, one of the glosses of “costly”is “entailing...

Ngày tải lên: 20/02/2014, 15:20

... construction of a prototype system for the understanding of spo- ken requests to an electronic directory assis- tance service, such as finding the phone number and address of a local business that offers ... application in terms of the value of the =breaking indices" based on relative duration of phonetic segments. For instance the rule VP -> V Link PP applies only when the value of the link is ... purpose of utteranc- es and their domain context, it is then possible to correct some of the insertion and mis-recognised word errors from the SR and determine the com- municative intent of the...

Ngày tải lên: 20/02/2014, 21:20

... volume constraints typical of DR systems. The modi~,cations are designed to recognize such aspects of discourse structure as establishment of topic; "setting of context; summarizing; concept ... discourse- final sentences; title words in the text: equivalence relations; and foregrounding devices (Figure 4). i. Repeat first and last sentences of the text. These sentences may include ... effectiveness of the various modifications in im- proving the original representations. Reference i. Belkin, N.J., Brooks, H.M., and Oddy, R.N. 1979. Representation and classification of knowledge...

Ngày tải lên: 21/02/2014, 20:20

... presence of intensional substitution failure is one of the important tests of a theory of propositional attitudes. This mechanism is a correlate of that of Thomason [1980], with the addition of ... finite subset of information that is needed to determine the meanings of the sentences actually presented to the system. Dynamic model-theoretic semantics allows the evaluation of a formula ... problem. I. INTRODUCTION In model-theoretic semantics, the semantics of a sentence is represented with a logical formula, and its meaning is the result of evaluating that formula with respect...

Ngày tải lên: 21/02/2014, 20:20