The basic features required in an algorithm for intension mining are as follows :
1. Any mining algorithms which is incremental in nature is a potential candidate for intension mining. But not all the incremental algorithms can be used for intension mining effectively.
2. It should be possible to divide the incremental algorithm into two parts. One part for accumulation of knowledge concentrates and another for mining of knowledge.
3. It is required that accumulation part should be capable of extracting knowledge in some form which is a sort of summary of the data processed.
4. The mining part should be able to use that accumulated knowledge to its benefit and when the mining query is fired, it should mine knowledge from the knowledge concentrates accumulated by the accumulation part.
5. The accumulation procedure may be computational or memory intensive.
6. The mining part shouldn't be computation intensive for sure.