Online reorganization of databases

Incremental Reorganization of Relational Databases

The evolution of an information system is reflected in Abstract data modeling by database reorganization. Entity-Relationship consistency expresses the capability of relational databases to model information oriented systems. A relational schema consisting of &ation schemes. together with key and inclusion dependencies, is said to be ER-consistent if it complies with an entity-relationship stru...

Online Negative Databases

The benefits of negative detection for obscuring information are explored in the context of Artificial Immune Systems (AIS). AIS based on string matching have the potential for an extra security feature in which the “normal” profile of a system is hidden from its possible hijackers. Even if the model of normal behavior falls into the wrong hands, reconstructing the set of valid or “normal” stri...

Online Metabolomics Databases and Pipelines

Conflict Resolution in Online Databases*

Shared online databases, such as Google Fusion Tables or Quickbase, allow non-programmer community members to collaboratively maintain and browse data. While community members may believe in conflicting facts (due to conflicting sources, measurements or opinions), current online databases do not yet offer support for the management of data conflicts. Ricolla is a novel online database that trea...

Online Deduplication for Distributed Databases

The rate of data growth outpaces the decline of hardware costs, and there has been an ever-increasing demand in reducing the storage and network overhead for online database management systems (DBMSs). The most widely used approach for data reduction in DBMSs is blocklevel compression. Although this method is simple and effective, it fails to address redundancy across blocks and therefore leave...