論文紹介: The Indian Buffet Hawkes Process to Model Evolving Latent Influences
Tan, X., Rao, V., Neville, J., The Indian Buffet Hawkes Process to Model Evolving Latent Influences, The Conference on Uncertainty in Artificial Intelligence, 2018.
original paper: http://auai.org/uai2018/proceedings/papers/289.pdf
Influences”, Xi Tan, Vianyak Rao, and Jennifer Neville • UAI2018 ͷจ • աఔͷ Hawkes Process ͱϊϯύϥϕΠζͷ Indian Buffet Process Λ౷߹ͨ͠Ϟσϧ • ঢ়ଶۭؒϞσϧͷϊϯύϥϕΠζ֦ுͱଊ͑ΒΕΔ • ෳ࣌ͰಘΒΕͨυΩϡϝϯτ͔ΒɼτϐοΫͦͷڧ ͷਪҠͳͲΛਪఆͰ͖ΔʢجຊతʹࣗવݴޠσʔλΛ ఆʣ 2
ͷจ຺ͰҼࢠτϐοΫʹ૬ 2 SɿϘΩϟϒϥϦू߹ DɿςΩετͷ͞ʢ؆୯ͷͨΊͯ͢Ұఆͱ͢Δʣ zn = {Kn, V n}ɿIBHP ͷજࡏม 1 × K ߦྻ Kn τϐοΫ k = 1, . . . , K ʹ͓͚ΔΠϕϯτͷൃੜ ͢͠͞ʢHP ʹ͓͚ΔڧؔʣΛද͢ |S| × K ߦྻ V n τϐοΫ k ͔Βͷ͋Δ୯ޠ s ∈ S ͷݱΕ͢ ͞Λද͢ 2ͻͱͭͷ୯ޠ͕ෳͷτϐοΫʹଐ͢Δ͜ͱ͕Մೳ 8