Solution : https://service.sap.com/sap/support/notes/548507 (SAP Service marketplace login required)
Key words :
tables oiktpidc toi0_rel_docs oiktpipd toi0_rel_sd_rank oiktpird toi0_rel_sdthis xpra, enhancement oikstrs1 fm exit_saploiks_001 customer include zxoiku59is, enhancement oikstrs2 fm exit_saploiks_002 customer include zxoiku90please, xpra roikxtpirel migrates existing tpi relevance data, tpi relevant datain sd document relevance tables, thenew sd document relevance tables, relevancy type determination input structurethe, --> tpi relevance - define relevance type, xpra roikxtpirel tpi relevancy, xpra run --> transaction o5pm