Fault-Tolerant Algorithms for Distributed Databases
{'Code': '05020000', 'Directorate': {'Abbreviation': 'CSE', 'LongName': 'Direct For Computer & Info Scie & Enginr'}, 'Division': {'Abbreviation': 'IIS', 'LongName': 'Div Of Information & Intelligent Systems'}}
{'SignBlockName': 'Maria Zemankova', 'PO_EMAI': None, 'PO_PHON': None}
The availability of data in a distributed database can be increased by          replication, where a data object may have several copies residing on            different sites.  If data is replicated, it may still be available after        failures.  However, this increase in data availability may result in an         increase in the cost of opertion execution.  The research proposed              herein seeks to develop methods that increase data availability at low          costs.  Futhermore, the mechanisms we explore allow the data to remain          accessible in spite of site or communication failures, even when such           failures lead to network partitioning.  We propose to develop a new             paradigm for fault tolerant concurrency control protocols.  This                paradigm furthers our understanding of such protocols, and provides us          with new insights for the development of new protocols.  We specifically        proposed development protocols that allow the execution of read-only            transactions and the efficient execution of transactions in databases           with well defined information flow patterns.  Finally, we propose to            investigate methods for increasing the availability of abstract data            objects where semantic information is available about the data objects          in the databaase.
{'FirstName': 'Amr', 'LastName': 'El Abbadi', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Amr El Abbadi', 'EmailAddress': 'amr@cs.ucsb.edu', 'NSF_ID': '000188334', 'StartDate': '07/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of California-Santa Barbara', 'CityName': 'SANTA BARBARA', 'ZipCode': '931060001', 'PhoneNumber': '8058934188', 'StreetAddress': '3227 CHEADLE HALL', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '24', 'CONGRESS_DISTRICT_ORG': 'CA24', 'ORG_UEI_NUM': 'G9QBQDH39DF4', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF CALIFORNIA, SANTA BARBARA', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '685500', 'Text': 'INFORMATION & KNOWLEDGE MANAGE'}
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