Patents by Inventor Dilys Thomas
Dilys Thomas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11182502Abstract: Systems and methods for computing data privacy-utility tradeoff is disclosed. Large data hubs like data marketplace are a source of data that may be of utility to data buyers. However, output data provided to data sellers is required to meet the privacy requirements of data sellers and at the same time maintain a level of utility to data buyers. Conventionally known methods of achieving data privacy tend to suppress components of data that may result in reduced utility of the data. Systems and methods of the present disclosure compute this tradeoff to establish need for data transformation, if any, before data is shared with data sellers.Type: GrantFiled: February 20, 2017Date of Patent: November 23, 2021Assignee: Tata Consultancy Services LimitedInventors: Dilys Thomas, Sachin Premsukh Lodha, Kalyani Mashiwal, Vijayanand Mahadeo Banahatti, Kishore Padmanabhan
-
Publication number: 20190057225Abstract: Systems and methods for computing data privacy-utility tradeoff is disclosed. Large data hubs like data marketplace are a source of data that may be of utility to data buyers. However, output data provided to data sellers is required to meet the privacy requirements of data sellers and at the same time maintain a level of utility to data buyers. Conventionally known methods of achieving data privacy tend to suppress components of data that may result in reduced utility of the data. Systems and methods of the present disclosure compute this tradeoff to establish need for data transformation, if any, before data is shared with data sellers.Type: ApplicationFiled: February 20, 2017Publication date: February 21, 2019Applicant: Tata Consultancy Services LimitedInventors: Dilys THOMAS, Sachin Premsukh LODHA, Kalyani MASHIWAL, Vijayanand Mahadeo BANAHATTI, Kishore PADMANABHAN
-
Patent number: 9569475Abstract: A plurality of mid-tier databases form a single, consistent cache grid for data in one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Ownership locks maintain consistency in the cache grid. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases.Type: GrantFiled: March 13, 2013Date of Patent: February 14, 2017Assignee: Oracle International CorporationInventors: Chi-Kim Hoang, Tirthankar Lahiri, Marie-Anne Neimat, Chih-Ping Wang, John E. Miller, Dilys Thomas, Nagender Bandi, Susan Cheng
-
Patent number: 8401994Abstract: A plurality of mid-tier databases form a single, consistent cache grid for data in a one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Consistency in the cache grid is maintained by ownership locks. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases.Type: GrantFiled: September 18, 2009Date of Patent: March 19, 2013Assignee: Oracle International CorporationInventors: Chi Hoang, Tirthankar Lahiri, Marie-Anne Neimat, Chih-Ping Wang, John Miller, Dilys Thomas, Nagender Bandi, Susan Cheng
-
Publication number: 20110072217Abstract: A plurality of mid-tier databases form a single, consistent cache grid for data in a one or more backend data sources, such as a database system. The mid-tier databases may be standard relational databases. Cache agents at each mid-tier database swap in data from the backend database as needed. Consistency in the cache grid is maintained by ownership locks. Cache agents prevent database operations that will modify cached data in a mid-tier database unless and until ownership of the cached data can be acquired for the mid-tier database. Cache groups define what backend data may be cached, as well as a general structure in which the backend data is to be cached. Metadata for cache groups is shared to ensure that data is cached in the same form throughout the entire grid. Ownership of cached data can then be tracked through a mapping of cached instances of data to particular mid-tier databases.Type: ApplicationFiled: September 18, 2009Publication date: March 24, 2011Inventors: Chi Hoang, Tirthankar Lahiri, Marie-Anne Neimat, Chih-Ping Wang, John Miller, Dilys Thomas, Nagender Bandi, Susan Cheng
-
Patent number: 7882121Abstract: A query generation using cardinality constraints process including choosing a first set of parameters for a query, calculating an additional set of parameters based on the first set of parameters, executing the query using additional set of parameters, evaluating the cardinality error the additional set of parameters, and refining the additional set of parameters to meet the desired cardinality constraint. Creating a query and selecting parameters for the query to meet a desired cardinality constraint or set of cardinality constraints when the query is executed against a database may be difficult. A query generation using cardinality constraints process may create a set of parameters for a query which satisfies a desired cardinality constraint or set of cardinality constraints. An application of such a query generation using cardinality constraints process may be database component and code testing.Type: GrantFiled: January 27, 2006Date of Patent: February 1, 2011Assignee: Microsoft CorporationInventors: Nicolas Bruno, Surajit Chaudhuri, Dilys Thomas
-
Publication number: 20070185851Abstract: A query generation using cardinality constraints process including choosing a first set of parameters for a query, calculating an additional set of parameters based on the first set of parameters, executing the query using additional set of parameters, evaluating the cardinality error the additional set of parameters, and refining the additional set of parameters to meet the desired cardinality constraint. Creating a query and selecting parameters for the query to meet a desired cardinality constraint or set of cardinality constraints when the query is executed against a database may be difficult. A query generation using cardinality constraints process may create a set of parameters for a query which satisfies a desired cardinality constraint or set of cardinality constraints. An application of such a query generation using cardinality constraints process may be database component and code testing.Type: ApplicationFiled: January 27, 2006Publication date: August 9, 2007Applicant: Microsoft CorporationInventors: Nicolas Bruno, Surajit Chaudhuri, Dilys Thomas