Data Sketching - ACM Queue
May 31, 2017 Volume 15, issue 2 PDF Data Sketching The approximate approach is often faster and more efficient. Graham Cormode Do you ever feel overwhelmed by an unending stream of information? It can seem like a barrage of new email and text messages demands constant attention, and there are also phone calls to pick up, articles to read, and knocks on the door to answer. Putting these pieces toge
How to crawl a quarter billion webpages in 40 hours – DDI
More precisely, I crawled 250,113,669 pages for just under 580 dollars in 39 hours and 25 minutes, using 20 Amazon EC2 machine instances. I carried out this project because (among several other reasons) I wanted to understand what resources are required to crawl a small but non-trivial fraction of the web. In this post I describe some details of what I did. Of course, there’s nothing especially ne
dablooms - an open source, scalable, counting bloom filter library
OverviewThis project aims to demonstrate a novel bloom filter implementation that can scale, and provide not only the addition of new members, but reliable removal of existing members. Motivationbitly has billions and billions of links and an infrastructure that serves thousands of decode requests per second, i.e. redirect the user from bit.ly/short to the long.destination.url.com/with/path. Users
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Parallelized bloom filter creation with Map/Reduce
Batch Querying with Cascading
