sehantics of tehporal queries

... their times of occurrence. nextof(E, T, D) - asserts that D is the next time of occurrence of event E after time T. nextof(E, T, D):- tlmeof(E, D) , before(T, D), not (tlmeof (E, X), before ... Processing of Interactive Relational Database Queries Expressed in Logic" In proc 7th Conf. on Very Laroe Databases. pp. 272-281. IEEE Computer Society (1981). SEHANTICS OF TEHPORAL QUERIES ... support queries of this type. The second type of query asks about the state -of- the-world on a given date (Query 4) or during an interval of time (Query 5). Understanding and answering these queries...

Ngày tải lên: 17/03/2014, 19:21

... (red/solid=all queries; blue/dashed =queries with ambiguous spans); most queries contain between 2-6 tokens. Google. The queries have an average of 3.81 tokens per query (1.7B tokens). Single token queries ... concepts derived from queries them- selves. This work also differs from both of these studies significantly in scope, training on 500M queries instead of just 500. At the level of class-label markup, ... model is incapable of using context to disambiguate their meaning. Figure 3 shows the dis- tribution of remaining queries. During training, we include 10 copies of each query (4.5B queries total), allowing...

Ngày tải lên: 20/02/2014, 04:20

... Annotation of Search Queries Michael Bendersky Dept. of Computer Science University of Massachusetts Amherst, MA bemike@cs.umass.edu W. Bruce Croft Dept. of Computer Science University of Massachusetts Amherst, ... entire set of 250 queries. For independent methods, we see that i-PRF outperforms i-QRY for 107 Input: Q t — training set of queries. Z Q t — ground truth annotations for the training set of queries. Q h — ... accuracy of the en- tire set of annotations. For instance, our method can leverage the information about estimated parts- of- speech tags and capitalization of query terms to improve the accuracy of...

Ngày tải lên: 30/03/2014, 21:20

... Beauvoir, of the Isle of Guernsey, who married the daughter of Peter Harreys of the Isle of Guernsey. Can any reader of "N. & Q." inform me whether descendants of that marriage are ... with that of a long line of ancestry and descendants, was De Ros only. He was the grandson of Robert de Ros, the founder of the two castles, Werke and Hamlake, and one of the leaders of the baronial ... William Norres, of Speke, co. Lanc. in 1563; followed by an abstract of charters, &c. The Domestic Chronicle of Thomas Godfrey, Esq., of Winchelsea, &c., M.P., the father of Sir Edmund...

Ngày tải lên: 17/02/2014, 01:20

... 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 not only ... se- mantic understanding of noun phrase queries. As- suming that the intent class c ∈ C of a query is known, we cast the problem of extracting the se- mantic structure of the query into a joint ... of noun phrase queries. We propose statistical methods to automatically ex- tract IHs, IMs and the semantic labels of IMs us- ing a variety of features. Experiments show the ef- fectiveness of...

Ngày tải lên: 20/02/2014, 04:20

... the design and implementation of a parser for this kind of grammar. Section 5 gives an example of such a grammar designed for the purpose of automatic tagging of queries. Section 6 discusses ... the purpose of automatic tagging of the queries. We will define a set of probabilistic context-free rules, which generates bags (i.e. multi-sets) of words. Us- ing this new type of rule in ... tagging of web search queries. Allan and Raghavan (2002) and Barr et al. (2008) study the linguistic structure of queries by performing part -of- speech tagging. Pasca et al. (2007) use queries...

Ngày tải lên: 08/03/2014, 00:20

... incoming queries represented in S all . On av- erage, Q -queries account for 1.8% of query traffic. 5.7% of all unique queries are Q -queries, indicating greater diversity in Q -queries. What types of ... systems, and web users often exclude them from queries. A high fraction of function words is a signal of queries be- having more like normal texts in terms of the amount of tokens “spent” to be ... question -queries over time? We perform a systematic study of question- queries in web search. We find that question -queries account for ∼ 2% of all the query traffic and ∼ 6% of all unique queries. ...

Ngày tải lên: 17/03/2014, 00:20

... retrieving a large sample of queries. Since we retrieve the queries that are sub- mitted within a three months period, for each lan- guage, we have millions of unique queries in our data set. ... queries from the aggregated but unfiltered queries of the Yahoo! Germany website, and had them annotated as before. As suspected, the second annotation results showed that, only 47.6% of the queries ... we have a set of queries Q, and each q ∈ Q maps to a set of url-frequency pairs. Each mapping is of the form (q, u, f u ), where u is a url clicked for q, and f u is the frequency of u. Table T2,...

Ngày tải lên: 30/03/2014, 23:20

Ngày tải lên: 07/08/2012, 11:48

... survey of the main lines of development of a very interesting area of biotechnology research. based on a limited number of characteristic publications. These have been selected on the basis of their ... viewpoint. This point of view is that of a former uni- 4 N.W.F. Kossen Fig. 1. Development of models The model consists of balances among these morphological forms, and a number of kinetic equations ... developed long before the measure- ment of all of the relevant parameters are complete. The second reason is a problem of genetics. The genetics of the production of an enzyme in microorganisms, including...

Ngày tải lên: 08/08/2012, 09:49

... birth of the field of biochemical engineer- ing. Following on the heels of the antibiotic products was the development of efficient microbial processes for the manufacture of vitamins (riboflavin, cyanocobalamine,biotin), ... the later development of bio- processes in Japan is the discovery of monosodium l-glutamate as a flavor enhancer of food in 1908. Kikunae Ikeda, Professor of the University of Tokyo, was interested ... battle. Workers at the University of Wisconsin isolated ultraviolet-induced mutants of Demerec’s strain. One of these, Wis. Q-176, which produced 550 mg/ml, is the parent of most of the strains used in...

Ngày tải lên: 08/08/2012, 09:52

... (lightness of color) and b* (yellowness of color), with an increase in a* (redness of color). Similar results were also reported by Ganesan et al. (2005). Table 1. The Effect of the Rate of Solubles ... they evaluated color in batches of DDGS where approximately 0, 30, 60 and 100% of the maximum possible of syrup was added to the mash before drying. Actual rates of solubles addition to the mash ... color. Corn-sorghum blends of DDGS are also somewhat darker in color than corn DDGS because of the bronze color of many sorghum varieties. When a relatively high proportion of solubles are added...

Ngày tải lên: 08/08/2012, 10:03

... 84:1870–1879. 05 - Use of DDGS in Swine Diets 1 Use of U.S. DDGS in Swine Diets Historical Use of DDGS in Swine Diets Historically, limited amounts (less than 3% of total production) of distiller’s ... of carcass fat from pigs fed high concentrations of DDGS would be lower and the negative effects of adding high levels of DDGS to the diets on pork fat quality would be less. The effect of ... evaluate dietary DDGS inclusion rates of 05 - Use of DDGS in Swine Diets 8 Gralapp et al. (2002) conducted two experiments to evaluate the impact of the level of DDGS added to grower-finisher...

Ngày tải lên: 08/08/2012, 10:03

Ngày tải lên: 08/08/2012, 14:19

Ngày tải lên: 08/08/2012, 14:36