record_number.pl  - a sample Perl script that retrieves records by their internal record number using the low-level interface to the Okapi BSS - i1+.

search.pl  - a sample Perl script that reads a set of query terms from a file, gets their number of postings from BSS, weights the terms using the BSS weighting function and searches ft_96 database using weighted operator bm2500. The script uses i1+ to access BSS.

ok-test.c  - a sample C program that reads some terms from a file, forms a bestmatch set and then displays the first five documents from the set.