I am calling lion. age=D interest=INVESTMENTS 394 ==> gender=M 329 conf:(0.84) age=F interest=COMPUTERS_INTERNET 491 ==> gender=M 390 conf:(0.79) age=C interest=PROGRAMMING_LANGUAGES 1912 ==> gender=M 1715 conf:(0.9) age=C interest=JAVA 342 ==> gender=M 309 conf:(0.9) age=B interest=JAVA 744 ==> gender=M 669 conf:(0.9) age=C interest=LINUX 456 ==> gender=M 439 conf:(0.96) age=D interest=LINUX 163 ==> gender=M 154 conf:(0.94) age=C interest=DATING 1377 ==> gender=M 1030 conf:(0.75) age=A interest=ACTORS_AND_ACTRESSES 19867 ==> gender=F 15346 conf:(0.77) age=A interest=BOOKS_AND_WRITING 10417 ==> gender=F 8079 age=A interest=SHOWS 9815 ==> gender=F 7186 conf:(0.73) age=A interest=POETRY 1365 ==> gender=F 1103 conf:(0.81) age=A interest=O_TOWN 204 ==> gender=F 192 age=A interest=POPSTARS 51 ==> gender=F 43 conf:(0.84) age=A interest=ROWLING_JK 116 ==> gender=F 83 conf:(0.72) age=A interest=EDENS_CRUSH 28 ==> gender=F 25 conf:(0.89) age=A interest=BUFFY_AND_ANGEL 75 ==> gender=F 57 conf:(0.76) age=B interest=JEDI 21 ==> gender=M 16 conf:(0.76) age=B interest=PARENTING 2280 ==> gender=F 2066 conf:(0.91) Lower confidence rules are also okay, depending on the choices. There are 16 age groups. So, if I compute an age group with a confidence over 17% that is a good result. Of course this ignores prior probabilities. gender=F interest=HOME_AND_GARDEN 3737 ==> age=D 1084 conf:(0.29) And there are 12 choices for age gender combinations, so it should be 8.5%: interest=HOME_AND_GARDEN 5721 ==> age=C gender=F 1155 conf:(0.2) interest=HOME_AND_GARDEN 5721 ==> age=D gender=F 1084 conf:(0.19) For C&D it should then be 17% but it is 39%! age=C interest=COMPUTER_VIDEO_GAMES 1332 ==> gender=M 984 conf:(0.74) age=B interest=DUNGEONS_AND_DRAGONS 232 ==> gender=M 173 conf:(0.75) gender=F interest=ANTIPOKEMON 37 ==> age=A 32 conf:(0.86) age=D interest=MILITARY 130 ==> gender=M 113 conf:(0.87) age=B interest=YOGA 358 ==> gender=F 238 conf:(0.66) age=C interest=CRAFTS 961 ==> gender=F 837 conf:(0.87) age=D interest=CRAFTS 904 ==> gender=F 769 conf:(0.85) age=B interest=CRAFTS 802 ==> gender=F 674 conf:(0.84) age=B interest=BEER 297 ==> gender=M 196 conf:(0.66) age=A interest=ROCK_AND_POP 49876 ==> gender=F 37918 conf:(0.76) age=C interest=ROCK_AND_POP 9955 ==> gender=M 6199 conf:(0.62) age=B interest=THRASH_METAL 99 ==> gender=M 80 conf:(0.81) age=A interest=SPEARS_BRITNEY 139 ==> gender=F 128 conf:(0.92) age=A interest=TIMBERLAKE_JUSTIN 55 ==> gender=F 50 conf:(0.91) Surprise: age=A interest=MARILYN_MANSON 187 ==> gender=F 150 conf:(0.8) age=C interest=AUTOMOTIVE 4337 ==> gender=M 3183 conf:(0.73) age=B interest=MARTIAL_ARTS 983 ==> gender=M 733 conf:(0.75) age=B interest=IRAN 1868 ==> gender=M 1414 conf:(0.76) age=B interest=FARSI 941 ==> gender=M 708 conf:(0.75) age=A interest=SPANISH 284 ==> gender=F 190 conf:(0.67) age=C interest=MARRIED_AND_FLIRTING 1773 ==> gender=M 1234 conf:(0.7) age=D interest=COLLEGES_AND_UNIVERSITIES 154 ==> gender=M 111 conf:(0.72) age=A interest=BIOLOGY 3368 ==> gender=F 2663 conf:(0.79) age=B interest=COMPUTER_SCIENCE 1404 ==> gender=M 1121 conf:(0.8)