Inventor · disambiguated record
Vijayshankar Raman
Also filed as: RAMAN VIJAYSHANKAR
125 granted patents·4 pending applications·892 citations·filing 2003–2021
99Inventor score
Top patents by PatentIndex Score
129 records- 0198US9547659B1Reducing the cost of update, delete, and append-only insert operations in a databaseIBM·Filed 2015·Granted Jan 17, 2017·28 cites·1 claims
- 0297US9317517B2Hashing scheme using compact array tablesIBM·Filed 2015·Granted Apr 19, 2016·20 cites·13 claims
- 0396US7877381B2Progressive refinement of a federated query plan during query executionIBM·Filed 2006·Granted Jan 25, 2011·104 cites·22 claims
- 0496US7609179B2Method for compressed data with reduced dictionary sizes by coding value prefixesIBM·Filed 2008·Granted Oct 27, 2009·271 cites·15 claims
- 0595US9317548B2Reducing collisions within a hash tableIBM·Filed 2013·Granted Apr 19, 2016·23 cites·18 claims
- 0691US9405858B2On-the-fly encoding method for efficient grouping and aggregationIBM·Filed 2013·Granted Aug 2, 2016·12 cites·13 claims
- 0791US9292560B2Reducing collisions within a hash tableIBM·Filed 2014·Granted Mar 22, 2016·12 cites·20 claims
- 0891US8442988B2Adaptive cell-specific dictionaries for frequency-partitioned multi-dimensional dataDRAESE OLIVER·Filed 2010·Granted May 14, 2013·21 cites·23 claims
- 0990US8856103B2Predicate pushdown with late materialization in database query processingBARBER RONALD J·Filed 2012·Granted Oct 7, 2014·12 cites·10 claims
- 1090US7827187B2Frequency partitioning: entropy compression with fixed size fieldsIBM·Filed 2008·Granted Nov 2, 2010·21 cites·18 claims
- 1189US10430100B2Transactional operations in multi-master distributed data management systemsIBM·Filed 2018·Granted Oct 1, 2019·5 cites·20 claims
- 1289US9311359B2Join operation partitioningIBM·Filed 2013·Granted Apr 12, 2016·10 cites·18 claims
- 1389US7716215B2System, method, and computer program product for progressive query processingIBM·Filed 2007·Granted May 11, 2010·32 cites·1 claims
- 1488US9672248B2Embracing and exploiting data skew during a join or groupbyIBM·Filed 2014·Granted Jun 6, 2017·8 cites·12 claims
- 1588US9069810B2Systems, methods and computer program products for reducing hash table working-set size for improved latency and scalability in a processing systemKIM MIN-SOO·Filed 2012·Granted Jun 30, 2015·10 cites·14 claims
- 1687US11042522B2Resolving versions in an append-only large-scale data store in distributed data management systemsIBM·Filed 2018·Granted Jun 22, 2021·4 cites·20 claims
- 1787US9772911B2Pooling work across multiple transactions for reducing contention in operational analytics systemsIBM·Filed 2015·Granted Sep 26, 2017·5 cites·20 claims
- 1885US10157193B2Switching between a non-partitioned hash join and a partitioned hash join based on an amount of available memoryIBM·Filed 2016·Granted Dec 18, 2018·4 cites·9 claims
- 1984US7383246B2System, method, and computer program product for progressive query processingIBM·Filed 2003·Granted Jun 3, 2008·37 cites·1 claims
- 2083US9141667B2Efficient join with one or more large dimension tablesIBM·Filed 2013·Granted Sep 22, 2015·7 cites·23 claims
- 2183US8099440B2Method for laying out fields in a database in a hybrid of row-wise and column-wise orderingJOHNSON F RYAN·Filed 2008·Granted Jan 17, 2012·21 cites·20 claims
- 2283US7853576B2Dynamic and selective data source binding through a metawrapperIBM·Filed 2007·Granted Dec 14, 2010·10 cites·28 claims
- 2382US9798756B2Systems, methods and computer program products for probing a hash table for improved latency and scalability in a processing systemIBM·Filed 2015·Granted Oct 24, 2017·3 cites·20 claims
- 2482US9195599B2Multi-level aggregation techniques for memory hierarchiesIBM·Filed 2013·Granted Nov 24, 2015·6 cites·20 claims
- 2581US9922064B2Parallel build of non-partitioned join hash tables and non-enforced N:1 join hash tablesIBM·Filed 2015·Granted Mar 20, 2018·2 cites·15 claims
- 2681US9922077B2Reducing the cost of update, delete, and append-only insert operations in a databaseIBM·Filed 2016·Granted Mar 20, 2018·2 cites·1 claims
- 2781US9875280B2Efficient partitioned joins in a database with column-major layoutARNDT STEFAN·Filed 2012·Granted Jan 23, 2018·5 cites·9 claims
- 2880US10346404B2Efficient partitioned joins in a database with column-major layoutIBM·Filed 2016·Granted Jul 9, 2019·2 cites·20 claims
- 2980US7885953B2Off-loading star join operations to a storage serverIBM·Filed 2007·Granted Feb 8, 2011·11 cites·20 claims
- 3079US10650011B2Efficient performance of insert and point query operations in a column storeIBM·Filed 2015·Granted May 12, 2020·3 cites·20 claims
- 3179US9892165B2Performing batches of selective assignments in a vector friendly mannerIBM·Filed 2015·Granted Feb 13, 2018·2 cites·18 claims
- 3279US9740714B2Multilevel filters for cache-efficient accessIBM·Filed 2014·Granted Aug 22, 2017·4 cites·19 claims
- 3379US9367556B2Hashing scheme using compact array tablesIBM·Filed 2013·Granted Jun 14, 2016·4 cites·17 claims
- 3478US9355146B2Efficient partitioned joins in a database with column-major layoutARNDT STEFAN·Filed 2012·Granted May 31, 2016·4 cites·7 claims
- 3578US8676865B2Adaptive lazy mergingHAN WEI·Filed 2008·Granted Mar 18, 2014·9 cites·23 claims
- 3677US11182356B2Indexing for evolving large-scale datasets in multi-master hybrid transactional and analytical processing systemsIBM·Filed 2019·Granted Nov 23, 2021·2 cites·25 claims
- 3777US10108653B2Concurrent reads and inserts into a data structure without latching or waiting by readersIBM·Filed 2015·Granted Oct 23, 2018·2 cites·20 claims
- 3877US7315872B2Dynamic and selective data source binding through a metawrapperIBM·Filed 2004·Granted Jan 1, 2008·20 cites·3 claims
- 3976US9665624B2Join operation partitioningIBM·Filed 2014·Granted May 30, 2017·3 cites·9 claims
- 4076US7490110B2Predictable query execution through early materializationIBM·Filed 2006·Granted Feb 10, 2009·16 cites·30 claims
- 4175US11119678B2Transactional operations in multi-master distributed data management systemsIBM·Filed 2019·Granted Sep 14, 2021·1 cites·19 claims
- 4275US7287043B2System and method for asynchronous data replication without persistence for distributed computingIBM·Filed 2003·Granted Oct 23, 2007·20 cites·52 claims
- 4374US9881049B2Reducing the cost of update, delete, and append-only insert operations in a databaseIBM·Filed 2016·Granted Jan 30, 2018·1 cites·1 claims
- 4474US9535940B2Intra-block partitioning for database managementBARBER RONALD J·Filed 2012·Granted Jan 3, 2017·3 cites·5 claims
- 4574US8862571B2Predicate pushdown with late materialization in database query processingBARBER RONALD J·Filed 2012·Granted Oct 14, 2014·3 cites·5 claims
- 4674US7353219B2Determining validity ranges of query plans based on suboptimalityIBM·Filed 2004·Granted Apr 1, 2008·17 cites·14 claims
- 4773US9535939B2Intra-block partitioning for database managementBARBER RONALD J·Filed 2012·Granted Jan 3, 2017·3 cites·11 claims
- 4872US10606863B2Monotonic transactions in a multi-master database with loosely coupled nodesIBM·Filed 2017·Granted Mar 31, 2020·1 cites·21 claims
- 4972US8843527B2Fast predicate table scans using single instruction, multiple data architectureIBM·Filed 2013·Granted Sep 23, 2014·3 cites·9 claims
- 5071US10592556B2On-the-fly encoding method for efficient grouping and aggregationIBM·Filed 2016·Granted Mar 17, 2020·1 cites·14 claims
Showing the top 50 of 129 patent records by PatentIndex Score.
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