selectively identify tables, columns/rows that need to be searched within each ... Each join tree is then mapped to a single SQL statement that joins the tables as ...
... forward and backward edge weights ... Make edge weight scale-free by dividing edge weigth by wmin ... Subdue extreme node weights by using log(1 indegree) ...
Hence, submitting to DBMS a SQL query for each CN (Na ve algorithm) is inefficient. ... at most very few results, Na ve algorithm is efficient, since it fully ...
A simple Query in natural language. Collaborative databases can be text or ... Y. Levy, Anand Rajaraman, Joann J. Ordille: Querying Heterogeneous Information ...
Efficient Keyword Search across Heterogeneous Relational Databases Mayssam Sayyadian, AnHai Doan University of Wisconsin - Madison Hieu LeKhac University of Illinois ...
Effective Keyword Search in Relational Databases. Fang Liu ... avril lavigne lyrics for the album under this skin. avril lavigne lyrics. Experiments measure ...
We have SQL, why keyword-querying? SQL - not appropriate for naive users. So many online databases (imdb, ... Query: set of search terms {t1, t2, .., tn} ...
University of California, San Diego. Research Exam & Thesis Proposal. Vagelis ... XQuery ?[29], XML-QL ?[30] , Quilt ?[31] for $t in document('db.xml')/items ...
* Neighborhood Keyword Queries Extends keyword search by considering association A ... Does not index text values Indexing on Value Indexes text values and ...
Given Keyword Query, assign a hub and an authoritative value to each page. ... Iterative algorithm on Base Set: authority weights a(p), and hub weights h(p) ...
Information Retrieval and Databases: Synergies and Syntheses. IDM ... 10000 foot view of Data Management. Structured. Unstructured. Complex. and. Structured ...
One of Bernstein's colleagues, Duane, recently published a paper about skyline query processing. ... (S) - stores the information about keywords at different ...
XRANK: Ranked keyword search over XML documents. ... Tutorial * * Databases / XML data ... dataflow Result Definition on XML & Trees /1 In an XML tree, ...
Who is the best customer to target in a social ... Bipartite cores. Problem with preferential attachment: does not explain dense/complete bipartite cores ...
Finding and Approximating Top-k. Answers in Keyword Proximity Search ... C-Approximation of the Top-k Answers (Fagin et. al, ... Top Answers are Steiner Trees ...
PaPaPa = PaPa PaPa. Then CN. is evaluated as PJohn PLPa PaPaPa PaVCR. instead of. PJohn LPref LPa PaPa PaPa PaVCR. Spare 2 joins! PersonJohn. Lineitem. Part ...
What is the Circuit ID associated with a Telephone Number. that appears in SALES? 9/11/2006 ... find the name of customers whose telephones are attached to the ...
Using Graphs in Unstructured and Semistructured Data Mining Soumen Chakrabarti IIT Bombay www.cse.iitb.ac.in/~soumen Acknowledgments C. Faloutsos, CMU W. Cohen, CMU ...
c1 c2 , because primary to foreign key from CUSTOMER to ORDERS. Pruning Condition: RK ... Size is unbounded iff schema graph G has one of the following properties: ...
Towards Unifying Database Systems and Information Retrieval Systems ... Implemented in C on top of BerkeleyDB. 2.7GHz 1GB processor. Varying # Updates ...
What is the Circuit ID associated with a Telephone Number. that appears in SALES? 10/18/2006 ... the name of customers whose telephones are attached to the ...
Compute Longest Common Prefix of Dewey IDs during the merge ... Short list sorted by ElemRank - saves space! Can reuse full inverted list as leaf of B -tree ...
Supervisor:Prof. Shan Wang. School of information, Renmin University of China ... Vera Watson. Jim Gray. Donald D. Chamberlin. A103. A102. A101. a1. a2. a3 ...
Once a record from a data stream has been processed, it is ... Evaluated once over a point-in-time snapshot of data set. Continuous queries in data streams ...
IBM Research. Efficiently Linking Text Documents with Relevant Structured ... The heroine ungraciously and ineptly disturbs the respectability and silence of ...
they stand on the golden gate bridge and ... Description. Mid. 20. American Thrift ... golden gate bridge with statue of liberty ... SELECT * FROM Movies M ...
A significant fraction of data is resident in relational databases or in semi ... Similar to NRA algorithm (Fagin et al., PODS'01) Experiments. Datasets ...