Calvin: Fast Distributed Transactions for Partitioned Database Systems ppt

... Descriptors C.2.4 [Distributed Systems] : Distributed databases; H.2.4 [Database Management]: Systems concurrency, distributed databases, transaction processing General Terms Algorithms, Design, Performance, ... concurrency control, two phase commit, SQL or C++. In HPTS,1997. Calvin: Fast Distributed Transactions for Partitioned Database Systems Alexander Thomson Ya l...

Ngày tải lên: 07/03/2014, 14:20

... Pub., San Mateo, CA (1991). [DG92] D. DeWitt and J. Gray. “Parallel Database Systems: The Future of High Performance Database Systems. ” In Communi- cations of the ACM, Vol. 35, No. 6, June 1992. [GL01] ... Wiederhold. “Mediators in the Architecture of Future Information Systems. ” In IEEE Computer, 25:3, pp. 38- 49, Mar. 1992. A Case for Staged Database Systems Stavros Harizopou...

Ngày tải lên: 07/03/2014, 14:20

... more than Two Databases Trust between databases is not transitive. That is, if database A trusts database B, and database B trusts database C, database C does not necessarily trust database A. This ... DBA. Additional Information: For reference information about this package, see Appendix D, “DBMS _DISTRIBUTED_ TRUST_ADMIN Package Reference”. Trusting Other Databases 4-10 Oracle...

Ngày tải lên: 17/01/2014, 09:20

... Language for Expert Systems: Comparisons with Database Systems Kathleen R. McKeown Department of Computer Science Columbia University New York, N.Y. 10027 1 Introduction Do natural language database ... the database system. We are currently working on natural language for expert systems at Columbia and thus, expert systems provide a natural alternative environment t...

Ngày tải lên: 21/02/2014, 20:20

... methodologies for database schema integration. ACM Computing Surveys, 1986. [7] P. A. Bernstein, N. Goodman, E. Wong, C. L. Reeve, and J. B. R. Jr. Query processing in a system for distributed databases ... cost information for diverse data sources in a federated system. In VLDB, 1999. [41] S. Salza, G. Barone, and T. Morzy. Distributed query opti- mization in loosely coupled mult...

Ngày tải lên: 07/03/2014, 14:20

... Analysis for Air Force Systems focus on technical risks as the foundation for the other program risks. Most supported guidelines on what content should be included in a risk assessment for program ... Risk Analysis for Air Force Systems technology that later is found to need modification to meet the requirements of the military operating environment. The decline of a strong DoD s...

Ngày tải lên: 17/02/2014, 22:20

... optimization opportunities for The ICS-FORTH SQPeer Middleware 21 SQPeer query plans, as well as possible architectural alternatives for static or self-adaptive RDF/S-based P2P database systems. Several ... Nejdl W, Wiesner C (2003) Distributed Queries and Query Optimization in Schema-Based P2P -Systems. In Proceed- ings of the International Workshop on Databases, Information Syste...

Ngày tải lên: 19/02/2014, 12:20

... average precision for all the pruned topic types is 74.64%, varying from 95.63% for ROOM to 37.63% for MIx. If MIx is left out, the average precision is 79.27%. The poor precision for MIX is due ... topic information provides a promis- ing starting point in attempts to provide an accurate context for the spoken dialogue systems. This can be further verified in the perplexity m...

Ngày tải lên: 20/02/2014, 18:20

... sub- way information for New York City. 1 Multimodal Mobile Information Access In urban environments tourists and residents alike need access to a complex and constantly changing body of information ... Users can ask for information about restaurants, such as phone numbers, addresses, and reviews. For example, a user might circle three restaurants as in Figure 3 and say phone numbers f...

Ngày tải lên: 08/03/2014, 07:20

... the dictionary is not rich enough for him. For example, for efficiency a user might prefer to use "wh" for "warehouse" and "co" for "company". Another ... FLEXIBLE FRONT-END FOR DATA MANAGEMENT SYSTEMS Marjorie Templeton System Development Corporation, Santa Monica, CA. EUFID is a natural language frontend for data management syst...

Ngày tải lên: 08/03/2014, 18:20