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Abstract: With the increasing amount of data in current OLAP databases, higher requirements are being placed on query efficiency. Index recommendation and materialized view recommendation are very ...

Currently, there's only metadata support for partition aligned stitching (disjunctive constraints, i.e., constraints which only apply along discrete boundaries, and which must be OR'd together to form ...

Dataology is the study of data. We publish the highest quality university papers & blog posts about the essence of data.

Here's what community members had to say in three recent letters to the editor we received. Submit your own thoughts here. Each Sunday, I have Alexa remind me to tune on “In Focus’’ before I leave for ...

Note: For the most recent data on Americans’ trust in science and scientists, read our 2024 report: Public Trust in Scientists and Views on Their Role in Policymaking. How we did this Pew Research ...

Abstract: The availability and performance of data warehouse is gradually degrading with variable requirements. The set of materialized views is far from being optimal, so it is necessary to implement ...

Circular data is data that is measured on a circle in degrees or radians. It is fundamentally different from linear data due to its periodic nature (0° = 360°). Circular data arises in a large variety ...