Cache optimization via topics in web search engines

A system for query processing comprising:

• a computer system comprising a processor, a memory configured to store program instructions and data, and program instructions executable by the processor to receive a plurality of queries for data, to determine at least one topic associated with each query, and to request data responsive to each query from a data cache;
• the data cache comprising a plurality of partitions, wherein there are at least a static cache partition, a dynamic cache partition, and a temporal cache partition,
• wherein the temporal cache partition is configured to store data based on a topic associated with the data,
• wherein the temporal cache partition is further partitioned into a plurality of topic portions, each portion configured to store data relating to an associated topic, wherein the associated topic is selected from among determined topics of queries received by the computer system, and wherein the data cache is configured to retrieve data responsive to at least some queries from the computer system.

A computer program product for query processing, the computer program product comprising a non-transitory computer readable storage having program instructions embodied therewith, the program instructions executable by a computer, to cause the computer to perform a method comprising:

• receiving a plurality of queries for data;
• determining at least one topic associated with each query;
• and
• requesting data responsive to each query from a data cache comprising a plurality of partitions, wherein there are at least a static cache partition, a dynamic cache partition, and a temporal cache partition, wherein the temporal cache partition is configured to store data based on a topic associated with the data, wherein the temporal cache partition is further partitioned into a plurality of topic portions, each portion configured to store data relating to an associated topic, wherein the associated topic is selected from among determined topics of queries received by the computer system, and wherein the data cache is configured to retrieve data responsive to at least some queries from the computer system.