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Events for February 19, 2015
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CS Colloquium: Guy Rothblum (Stanford) - How to Verify Computations without Reexecuting Them
Thu, Feb 19, 2015 @ 10:00 AM - 10:50 AM
Thomas Lord Department of Computer Science
Conferences, Lectures, & Seminars
Speaker: Guy Rothblum, Stanford University
Talk Title: How to Verify Computations without Reexecuting Them
Series: CS Colloquium
Abstract: Can we prove the correctness of a polynomial-time computation to a verifier who cannot re-execute the computation on its own? Such proof systems can be used in cloud computing scenarios, allowing weak devices (from phones and tablets to wearable or embedded devices) to delegate work and storage to a third party, without compromising the correctness of delegated computations. I will survey a line of work that answers this question, and constructs proof systems for delegating computations using the machinery of interactive proofs and cryptography.
Biography: Guy Rothblum is a researcher at Stanford University. He has wide interests in theoretical computer science, with a focus on cryptography, privacy-preserving data analysis, security and complexity theory. His research aims to promote a foundational understanding of computing under security, privacy, and reliability concerns.
Dr. Rothblum completed his Ph.D. at MIT, where his advisor was Shafi Goldwasser, and his M.Sc. at The Weizmann Institute of Science, where his advisor was Moni Naor. Until recently, he was a researcher at Microsoft Researchâs Silicon Valley Lab (2011-2014).
Host: Computer Science Department
Webcast: https://bluejeans.com/537213719Location: Olin Hall of Engineering (OHE) - 132
WebCast Link: https://bluejeans.com/537213719
Audiences: Everyone Is Invited
Contact: Assistant to CS chair
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CS Colloquium: Karthik Ramasamy (Twitter)
Thu, Feb 19, 2015 @ 11:00 AM - 12:00 PM
Thomas Lord Department of Computer Science
Conferences, Lectures, & Seminars
Speaker: Karthik Ramasamy, Twitter
Talk Title: Real Time Analytics @Twitter
Abstract: Real time analytics seems to be a buzz word these days. Twitter identified the need for real time analytics early on and invested in a massive data pipeline that collects, aggregates, processes large volumes of data in real time. At the heart of the pipeline is Twitter Storm, a real-time stream processing engine widely used in Twitter. Storm is used for real-time data analytics, time series aggregation, and powering real-time features like trending topics. In this talk, we will give an overview of real time analytics, discuss the twitter real time data pipeline and how Storm is used for extracting analytics. We will also discuss the challenges we faced and lessons we have learned while building this infrastructure at Twitter.
Biography: Karthik is the engineering manager and technical lead for Real Time Analytics @Twitter. He has two decades of experience working in parallel databases, big data infrastructure and networking. He cofounded Locomatix, a company that specializes in real timestreaming processing on Hadoop and Cassandra using SQL that was acquired by Twitter. Before Locomatix, he had a brief stint with Greenplum where he worked on parallel query scheduling. Greenplum was eventually acquired by EMC for more than $300M. Prior to Greenplum, Karthik was at Juniper Networks where he designed and delivered platforms, protocols, databases and high availability solutions for network routers that are widely deployed in the Internet. Before joining Juniper at University of Wisconsin, he worked extensively in parallel database systems, query processing, scale out technologies, storage engine and online analytical systems. Several of these research were spun as a company later acquired by Teradata.
He is the author of several publications, patents and one of the best selling book "Network Routing: Algorithms, Protocols and Architectures." He has a Ph.D. in Computer Science from UW Madison with a focus on databases.
Host: Shahram Ghandeharizadeh
Location: Ronald Tutor Hall of Engineering (RTH) - 526
Audiences: Everyone Is Invited
Contact: Assistant to CS chair
