A ( Q ) = ∑ i = 1  t  ∑ k = 1  l  l o g       f i k   ( w 3 k − 2   , w 3 k − 1   , w 3 k   )  i        ( 6 )    MathType@MTEF@5@5@+=feaafiart1ev1aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8akY=wiFfYdH8Gipec8Eeeu0xXdbba9frFj0=OqFfea0dXdd9vqai=hGuQ8kuc9pgc9s8qqaq=dirpe0xb9q8qiLsFr0=vr0=vr0dc8meaabaqaciaacaGaaeqabaqabeGadaaakeaacqWGbbqqcqGGOaakcqWGrbqucqGGPaqkcqGH9aqpdaaeWbqaamaaqahabaacbiGae8hBaWMae83Ba8Mae83zaCgaleaacqWGRbWAcqGH9aqpcqaIXaqmaeaacqWGSbaBa0GaeyyeIuoaaSqaaiabdMgaPjabg2da9iabigdaXaqaaiabdsha0bqdcqGHris5aOGaeeiiaaIaemOzay2aaSbaaSqaaiabdMgaPjabdUgaRbqabaGccqGGOaakcqWG3bWDdaWgaaWcbaGaeG4mamJaem4AaSMaeyOeI0IaeGOmaidabeaakiabcYcaSiabdEha3naaBaaaleaacqaIZaWmcqWGRbWAcqGHsislcqaIXaqmaeqaaOGaeiilaWIaem4DaC3aaSbaaSqaaiabiodaZiabdUgaRbqabaGccqGGPaqkdaWgaaWcbaGaemyAaKgabeaakiaaxMaacaWLjaWaaeWaaeaacqaI2aGnaiaawIcacaGLPaaaaaa@6150@