| ista | Linux executable | (77 kb) | ||
| ista.exe | Windows console executable | (112 kb) | ||
| ista.zip | C sources, version 1.15, 2010.07.30 | (126 kb) | ||
| ista.tar.gz | (109 kb) | |||
| census.zip | census data set (from the UCI ML repository) | (390 kb) | ||
| census | shell script used for the conversion | (1 kb) |
A program to find closed frequent item sets by intersecting transactions (Intersecting Transactions), which is based on the insight that an item set is closed if it is the intersection of all transactions that contain it. Such an approach can be highly competitive in special cases, namely if there are few transactions and (very) many items, which is a common situation in biological data sets, like gene expression data. For other data sets, however, it is not a recommendable approach.
A reference to a closely related approach:
More information about frequent item set mining, implementations of other algorithms as well as test data sets can be found at the Frequent Itemset Mining Implementations Repository.