text s ▁of ▁works ▁at ▁A oz ora ▁Bun ko ▁ ▁Category : 1 8 8 0 ▁birth s ▁Category : 1 9 2 3 ▁death s ▁Category : De ath s ▁in ▁t sun am is ▁Category : J apan ese ▁writers ▁Category : J apan ese ▁literary ▁critics ▁Category : N atural ▁dis aster ▁death s ▁in ▁Japan ▁Category : Pe ople ▁from ▁Ky oto ▁Category : Univers ity ▁of ▁Tokyo ▁al umn i ▁Category : V ict ims ▁of ▁the ▁ 1 9 2 3 ▁Great ▁Kant ō ▁earth qu ake <0x0A> </s> ▁In ▁signal ▁processing ▁and ▁statistics , ▁a ▁window ▁function ▁( also ▁known ▁as ▁an ▁ap od ization ▁function ▁or ▁tap ering ▁function ) ▁is ▁a ▁mathematical ▁function ▁that ▁is ▁zero - valu ed ▁outside ▁of ▁some ▁chosen ▁interval , ▁normally ▁symmetric ▁around ▁the ▁middle ▁of ▁the ▁interval , ▁usually ▁near ▁a ▁maximum ▁in ▁the ▁middle , ▁and ▁usually ▁tap ering ▁away ▁from ▁the ▁middle . ▁Mathemat ically , ▁when ▁another ▁function ▁or ▁wave form / data - sequence ▁is ▁" multip lied " ▁by ▁a ▁window ▁function , ▁the ▁product ▁is ▁also ▁zero - valu ed ▁outside ▁the ▁interval : ▁all ▁that ▁is ▁left ▁is ▁the ▁part ▁where ▁they ▁overlap , ▁the ▁" view ▁through ▁the ▁window ". ▁ ▁Equ ival ently , ▁and ▁in ▁actual ▁practice , ▁the ▁segment ▁of ▁data ▁within ▁the ▁window ▁is ▁first ▁isolated , ▁and ▁then ▁only ▁that ▁data ▁is ▁multip lied ▁by ▁the ▁window ▁function ▁values . ▁ ▁Thus , ▁tap