2656 search results - page 516 / 532 » Design and analysis of algorithms reconsidered |
POPL
2004
ACM
14 years 9 months ago
2004
ACM
For decades we have been using Chomsky's generative system of grammars, particularly context-free grammars (CFGs) and regular expressions (REs), to express the syntax of prog...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
Column-oriented database systems [19, 23] perform better than traditional row-oriented database systems on analytical workloads such as those found in decision support and busines...
SIGMOD
2008
ACM
14 years 8 months ago
2008
ACM
In some applications such as filling in a customer information form on the web, some missing values may not be explicitly represented as such, but instead appear as potentially va...
SIGMOD
2008
ACM
14 years 8 months ago
2008
ACM
Sampling is a popular method of data collection when it is impossible or too costly to reach the entire population. For example, television show ratings in the United States are g...