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Tài liệu Báo cáo khoa học: "ON THE REPRESENTATION OF QUERY TERM RELATIONS BY SOFT BOOLEAN oPERATORS" ppt
... uncertain nature of term relations in the language Tn the extended system, soft Boolean queries are easy to formulate, and methods exist for a completely automatic formulation of the soft queries, given ... transfer of The use of ~ l ~ f ~ e ~ m ~ f i ~ ~ has great appeal Because of a growing interest in the applicability of this technology to IJJZE£Eig£, a grant was provided to the Institute of LiJZEax~Research ... demonstrated by the simulated retrieval rank of 1667 out of 3204 CACM documents 118 CACM Collection CISI Collection selected queries (5,6,9.12,15,21.40) selected queries 4,7o18,33 2020 1465 2170 (+7.5%)...
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Báo cáo khoa học: "Search in the Lost Sense of “Query”: Question Formulation in Web Search Queries and its Temporal Change" pptx
... from queries A high fraction of function words is a signal of queries behaving more like normal texts in terms of the amount of tokens “spent” to be structurally complete We use the list of function ... First we define a notion of question queries based on the standard definition of questions in English A query is a Q -query if it contains at least two tokens and satisfies one of the following criteria ... occurrence of POS tags in queries Query log analysis is an active research area While we also analyze queries, our goal is very different: we are interested in certain linguistic aspects of queries, ...
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Chapter 3 - LINQ Query Operators
... 51202 Israel What Are Query Operators? • Query operators are typically extension methods that operate on a sequence of elements • Some query operators return a sequence of elements, some return ... Query Operators • Why query operators? • Developing query operators for IEnumerable • Language integration © Copyright SELA Software & Education Labs Ltd 14-18 ... Copyright SELA Software & Education Labs Ltd 14-18 Baruch Hirsch St Bnei Brak 51202 Israel Developing Query Operators • Most query operators are very straightforward • Let’s develop some query operators...
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Tài liệu The Invariance of the Index of Elliptic Operators, elliptic operators pdf
... some properties of a certain class of linear differential operators known as elliptic operators We investigate the behavior of this class of maps operating on the space of sections of a vector bundle ... Proof of the Invariance of the Index 23 23 24 25 27 32 Example: The Torus 36 A Elliptic Operators and Riemann-Roch 38 B An Alternate Proof of Elliptic ... sufficiently small perturbations of the operator L This is one of the claims of the Atiyah-Singer Index Theorem, which in addition to the invariance of the index of elliptic operators under sufficiently...
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Tài liệu Use Wildcards and Ranges of Values in a SQL Query pdf
... one per occurrence Comments By placing your use of wild cards and allowing for ranges of values, you can make your applications and the querying of data more versatile than ever! ... group Opposite of the last entry, if you typed [^B-D]ake, you would get those words ending in ake, where the first letter doesn't fall within B-D The same works for the group of letters as well ... brackets) This is a range or group of characters to compare against For example, if you type [B-D]ake, you would get bake and cake Another way to use it, with a group of letters, would be to type [BF]ake...
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Tài liệu Exporting the Results of a Query as a String docx
... < 0) // Negative number of rows returns all rows numRows = dt.Rows.Count; else // Set number of rows to the lesser of the user entered // number of rows and the number of rows in the table numRows ... sb = new StringBuilder( ); // Iterate over the collection of rows for(int i = 0; i < numRows; i++) { // Iterate over the collection of columns foreach (object col in dt.Rows[i].ItemArray) { // ... method of the ADO Recordset or a method that converts the Recordset to a string This solution presents an ADO.NET method, which is also called GetString( ), that duplicates the functionality of the...
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Tài liệu Exporting the Results of a Query to an Array pdf
... no columns were specified, set the number of columns to the // number of columns in the table; otherwise, set the number of // columns to the number of items in the specified columns array int ... number of rows to int nRows = Math.Max((dt.Rows.Count - startRow) + 1, 0); // If the number of rows to export is specified as greater than 0, // set the number of rows to export as the lesser of ... startRow; // The number of rows to export calculated as the number of rows in // the table less the starting row number // If the starting row is specified as greater than the number of // rows in the...
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Tài liệu NOTES AND QUERIES: A MEDIUM OF INTER-COMMUNICATION FOR LITERARY MEN, ARTISTS, ANTIQUARIES, GENEALOGISTS, ETC pdf
... with the ownership of land It seems clear, therefore, that the silence of Domesday cannot be urged as a proof of the {356}non-existence of a church, or of the subsequent grant of those rights and ... 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 ... "King of Kings:" Bishop Andrews' Sermons.—From MS Account of Fellows of Kings, compiled from 1750, A.D 1583, Geffrey King, D.D., Professor of Hebrew, Cambridge, first chaplain to Bancroft and...
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Tài liệu Báo cáo khoa học: "Understanding the Semantic Structure of Noun Phrase Queries" pptx
... semantic understanding of noun phrase queries Assuming that the intent class c ∈ C of a query is known, we cast the problem of extracting the semantic structure of the query into a joint segmentation/classification ... class of a query, c ∈ C, which is assumed to be known Intent head An intent head (IH) is a query segment that corresponds to an attribute name of an intent class For example, the IH of the query ... types of lexicons leveraging databases and query logs for each intent class The first type of lexicon is an IH lexicon comprised of a list of attribute names for the intent class, e.g., “box of ce”...
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Tài liệu Báo cáo khoa học: "Fine-Grained Class Label Markup of Search Queries" pdf
... number of query clusters as well as various hyperparameter settings 3.4 4.1 0.1 10 12 Query length Figure 3: Distribution in the query corpus, broken down by query length (red/solid=all queries; ... average of 3.81 tokens per query (1.7B tokens) Single token queries are removed as the model is incapable of using context to disambiguate their meaning Figure shows the distribution of remaining queries ... sparse are intractably large Given a query q, a query cluster assignment cq and a set of label production clusters L, we define a parse of q to be a sequence of productions tq forming a parse tree...
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Tài liệu Báo cáo khoa học: "The Impact of Query Refinement in the Web People Search Task" docx
... represents the number of clusters which have at least one candidate of this type of QR This way we know how often we can use an attribute (coverage) 3.1 Results The results of the evaluation for ... clusters of size 1); (ii)people that appear in two documents (92 clusters of size 2), often these documents belong to the same domain, or are very similar; and (iii) all other cases (125 clusters of ... clusters of size >=3 son dataset in the WePS corpus contains a total of 100 documents, and 10 of them belong to a British politician named James Patterson The WePS-2 corpus contains a total of 552...
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Báo cáo khoa học: "Semantic Tagging of Web Search Queries" ppt
... Example of schema for product domain We mentioned that one of the motivations of parsing search queries is to have a deeper understanding of the structure of the query The evaluation of such ... implementation of a parser for this kind of grammar Section gives an example of such a grammar designed for the purpose of automatic tagging of queries Section discusses motivations for and benefits of running ... linguistic structure of web search queries The model’s power, however, comes at the cost of increased time complexity, which is exponential in the length of the query This, is less of an issue for...
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Báo cáo khoa học: "Weakly-Supervised Acquisition of Open-Domain Classes and Class Attributes from Web Documents and Query Logs" pot
... of pairs of a class label and an instance {} Variables: {S} = clusters of distributionally similar phrases {V} = vectors of contextual matches of queries in text {ME } = set of pairs of ... 04 For each cluster of phrases S in {S} 05 {CS } = ∅ 06 For each query Q of S 07 Insert labels of Q from {ME } into {CS } 08 For each label CS of {CS } 09 {X } = Find queries of S with the label ... extraction by the contents of query logs {Q} (Step in Figure 2) This is fol20 Input: set of Is-A extraction patterns {E} large repository of search queries {Q} large repository of Web docs {D} weighting...
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Doctor of Philosophy in Mathematics Linear and Non-linear Operators, and The Distribution of Zeros of Entire Functions
... the larger of the orders of the two summands, and if the orders of the summands and of the sum are all equal, then 21 the type of the sum is not greater than the larger of the types of the two ... the order of f2 (z) is greater than the order of f1 (z), or if the orders are equal and the type of f2 (z) is larger than the type of f1 (z) It is easy to see that the order of the sum of two functions ... [66] Investigating the zeros of functions such as ξ(z) in (1.1) is a part of the theory of the location and distribution of zeros of entire functions ∞ For a sequence of real numbers {γk }k=0 ,...
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Báo cáo khoa học: "Don’t ‘have a clue’? Unsupervised co-learning of downward-entailing operators" pptx
... actually DE operators or not Our evaluation metric is precision at k of a given system’s ranked list of candidate DE operators; it is not possible to evaluate recall since no list of Romanian DE operators ... part of the sentence to the left of the NPI up to the first comma, semi-colon or beginning of sentence; (b) to encourage the discovery of new DE operators, those sentences containing one of a ... fraction of NPI contexts that contain x , relative frequency of x in the corpus which compares x’s probability of occurrence conditioned on the appearance of an NPI with its probability of occurrence...
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Báo cáo khoa học: "A Re-examination of Query Expansion Using Lexical Resources" pptx
... hypernym of X if X is a (kind of) Y • Hyponym(Hypo): X is a hyponym of Y if X is a (kind of) Y • Holonym(Holo): Y is a holonym of Y if X is a part of Y • Meronym(Mero): X is a meronym of Y if ... the weight of an expanded term t is determined by its term similarity with a query term q, i.e., s(q, t), as well as the weight of the query term, i.e., ω(q) Note that the weight of an expanded ... Related Work Query Expansion in Axiomatic Retrieval Model Although the use of WordNet in query expansion has been studied by various researchers, the improvement of retrieval performance is often limited...
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Báo cáo khoa học: "SEHANTICS OF TEHPORAL QUERIES AND TEHPORAL DATA" pot
... answer queries of ead~ type Another type of query asks about the lenoth of time that a situation has existed (Query 6), or about the duration of one stage of a process (Ouer7 7) These queries ... represents the time of transition from one stage to the next 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 ... events to 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...
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Đề tài " Discreteness of spectrum and positivity criteria for Schr¨odinger operators " doc
... left-hand side of (3.21) tends to +∞ as Gd → ∞ This concludes the proof of part (i) of Theorem 2.2 Discreteness of spectrum: sufficiency In this section we will establish the sufficiency part of Theorem ... discreteness of spectrum of HV that the condition (2.5) holds only for a sequence of d’s; i.e., d ∈ {d1 , d2 , }, dk → and d−2 γ(dk ) → +∞ as k → +∞ k ¨ DISCRETENESS OF SPECTRUM FOR SCHRODINGER OPERATORS ... discreteness of spectrum of Schr¨dinger operators with scalar potentials which o are semibounded below The classical discreteness of spectrum criterion by A M Molchanov (1953) uses a notion of negligible...
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Probabilistic Ranking of Database Query Results pot
... set of “tuples”, where each tuple represents a query and is a vector containing the corresponding values of the specified attributes Consider an incoming query Q which specifies a set X of attribute ... tuple-id of a tuple t that contains x and p(z | W ) GlobScore = ∏ z∈t p ( z | D ) These lists enable efficient computation of the score of a tuple t for any query as follows: given query Q specifying ... each query and each algorithm, the fraction of users that preferred the rankings of the algorithm The results of the above experiments show that Conditional generally produces rankings of higher...
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Báo cáo khoa học: "A Combination of Active Learning and Semi-supervised Learning Starting with Positive and Unlabeled Examples for Word Sense Disambiguation: An Empirical Study on Japanese Web Search Query" pdf
... words, the number of its senses, the number of its data instances, the number of feature, and the percentage of positive sense instances for each data set Assigning the correct labels of data instances ... Empirical Study of the Behavior of Active Learning for Word Sense Disambiguation, Proc of the main conference on Human Language Technology Conference of the North American Chapter of ACL, pp 120-127 ... sense of d The above steps are repeated until dataset reaches the predefined desirable size number of initial positive examples and the percentage of it in the training data set word Wega Loft...
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