1. User models: theory, method, and practice
2. Information filtering and information retrieval
3. Bowen T.F. Gopal G. Herman G. Hickey T. Lee K.C. Mansfield W.H. and Weinrib A The da~acycle architecture Commun. ACM 35 12 {Dec. ! (:}9"2) 10.1145/138859.138868 Bowen T.F. Gopal G. Herman G. Hickey T. Lee K.C. Mansfield W.H. and Weinrib A The da~acycle architecture Commun. ACM 35 12 {Dec. ! (:}9"2) 10.1145/138859.138868
4. Breckler S.J. Allen R.B. and Konecni V.J. Mood-optimizing strategics in aesthetic-choice behavior. music Pert 2 (}85'~ 45t:iv~.:Ji?(i Breckler S.J. Allen R.B. and Konecni V.J. Mood-optimizing strategics in aesthetic-choice behavior. music Pert 2 (}85'~ 45t:iv~.:Ji?(i
5. Personalized information delivery