Waleed Helmy Abdelhafeez <br/><br/>
Speeding - up web information extraction /  
 تسريع استخلاص المعلومات من الويب 
Waleed Helmy Abdelhafeez ; Supervised Mokhtar Boshra Riad , Mohamed Ezz Eldin Elsharkawi , Kareem Mohamed Darwish 
 - Cairo :   Waleed Helmy Abdelhafeez ,   2007 
 - 71P. ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty Of Computers and Information - Department Of Information Systems 
<br/><br/> In infoemation retieval , relevance feedback has been used to effectively improve retrival performance.Traditionally this feedback is generated by the user.However , recently there has been some exploration in blind relevance feedback BRF 
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<br/><br/><label>Subjects--Index Terms: </label>Blind relevance feedback Queny expansion Tem co - occurrence