ist ▁and ▁one ▁of ▁the ▁f athers ▁of ▁the ▁L Z ▁family ▁of ▁loss less ▁data ▁compression ▁algorithms . ▁ ▁Biography ▁L emp el ▁was ▁born ▁on ▁ 1 0 ▁February ▁ 1 9 3 6 ▁in ▁L w ów , ▁Poland ▁( now ▁L viv , ▁Ukraine ). ▁He ▁studied ▁at ▁Techn ion ▁- ▁Israel ▁Institute ▁of ▁Technology , ▁and ▁received ▁a ▁B . Sc . ▁in ▁ 1 9 6 3 , ▁M . Sc . ▁in ▁ 1 9 6 5 , ▁and ▁D . Sc . ▁in ▁ 1 9 6 7 . ▁Since ▁ 1 9 7 7 ▁he ▁has ▁held ▁the ▁title ▁of ▁full ▁professor . ▁L emp el ▁is ▁now ▁a ▁professor ▁emer it us ▁in ▁Techn ion . ▁ ▁His ▁histor ically ▁important ▁works ▁start ▁with ▁the ▁presentation ▁of ▁the ▁L Z 7 7 ▁algorithm ▁in ▁a ▁paper ▁entitled ▁" A ▁Universal ▁Algorithm ▁for ▁Se qu ential ▁Data ▁Com pression " ▁in ▁the ▁IE EE ▁Trans actions ▁on ▁Information ▁Theory ▁( May ▁ 1 9 7 7 ), ▁co - author ed ▁by ▁Jacob ▁Z iv . ▁ ▁He ▁is ▁the ▁recip ient ▁of ▁the ▁ 1 9 9 8 ▁Golden ▁J ub ile e ▁Award ▁for ▁Techn ological ▁In nov ation ▁from ▁the ▁IE EE ▁Information ▁Theory ▁Society ; ▁and ▁the ▁ 2 0 0 7 ▁IE EE ▁Richard ▁W . ▁Ham ming ▁Medal , ▁for ▁" p ione ering ▁work ▁in ▁data ▁compression , ▁especially ▁the ▁L emp el - Z iv ▁algorithm