Lecturer : Aleksander Mądry Scribes : Chidambaram Annamalai and Carsten Moldenhauer
نویسندگان
چکیده
We continue our exploration of streaming algorithms. First, we briefly discuss the sparse approximation problem – a problem of fundamental importance in streaming and signal processing – and its connection to the Count-Min algorithm. Next, we start investigation of the lowerbounds on space complexity of streaming algorithms. In particular, we revisit the question of lowerbounds for the distinct elements problem and introduce the framework of communication complexity that (as we will see later) will be instrumental in establishing a host of streaming lowerbound results.
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CS - 621 Theory Gems November 14 , 2012 Lecture 16 Lecturer : Aleksander Madry Scribes : Chidambaram Annamalai
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