We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...
al abstract machine for graph reduction Alan Jeffrey Report 3/92 August 1992 Computer Science School of Cognitive and Computing Sciences University of Sussex Brighton BN1 9QH ISSN ...
Computer algebra in scientific computation squarely faces the dilemma of natural mathematical expression versus efficiency. While higher-order programming constructs and parametri...