News & Events
DB Seminar [Spring 2015]: Gisele Pappa
Abstract: In this seminar I will present three of my ongoing projects. I will start talking about dengue fever modeling, its challenges and opportunities. Dengue fever is a tropical, mosquito transmitted disease that has been growing significantly in the past decade. The main goal of this project is to exploit real cases data and Twitter data to generate a predictive system that allows government policies to be put in place up to two weeks before the disease outbreaks really happen. Following, I will present a Bayesian Read More
DB Seminar [Spring 2015]: Konstantinos Pelechrinis (UPitt)
Abstract: The proliferation of mobile handheld devices in combination with the technological advancements in mobile computing has led to a number of innovative services that make use of the location information available on such devices. Traditional yellow pages websites have now moved to mobile platforms, giving the opportunity to local businesses and potential, near-by, customers to connect. These platforms can offer an affordable advertisement channel to local businesses. One of the mechanisms offered by location-based social networks (LBSNs) allows businesses to provide Read More
DB Seminar [Spring 2015]: Danai Koutra (Job talk dry run v2.0)
Job talk dry run - round 2 Abstract: Networks naturally capture a host of real-world interactions, spanning from friendships to brain activity. But, given a massive graph, such as the Facebook social network, what can be learned about its structure? Are there any changes over time? Where should people's attention be directed? In this talk I will present my work on scalable algorithms that help us to explore and make sense of large, networked data when we want to know “what’s in the data”. I will Read More
DB Seminar [Spring 2015]: Vagelis Papalexakis (Thesis Proposal dry run)
Abstract: Given a Knowledge Base that records millions of relations of the form “Barack Obama is the president of USA”, how can we automatically learn new synonyms and enhance the Knowledge Base? Imagine now measuring the brain activity of a person while reading words that appear in this Knowledge Base; how can we relate information processing in the brain, and information found on the World Wide Web? Can we use both pieces of data in order to enhance knowledge extraction Read More
DB Seminar [Spring 2015]: Danai Koutra
Abstract: TDB Details: Job talk dry run. Read More
DB Seminar: Round-table discussion
Due to weather conditions, the meeting is CANCELED! Round table discussion including: Welcoming new visitors to the DB-group Work in progress / work recently accepted. Read More
Chris Jermaine (Rice University)
In this talk, I'll describe the SimSQL system, which is a platform for writing and executing statistical codes over large data sets, particularly for machine learning applications. Codes that run on SimSQL can be written in a very high-level, declarative language called Buds. A Buds program looks a lot like a mathematical specification of an algorithm, and statistical codes written in Buds are often just a few lines long. At its heart, SimSQL is really a relational database system, and Read More
Stephan Ellner + Lyric Doshi (Google)
Got petabytes to query? Give us a few. Fetch trillions of rows? Done, what's next? Entire data center down? Still fast and strongly consistent. The Mesa system must serve detailed ads data for reporting, internal audits, analysis, billing, forecasting and more. Meanwhile, Advertisers use the same data to gain fine-grained insights into their campaigns' performance. Because users include complex enterprise web APIs and interactive web applications, we must answer queries *fast*. Since the data is related to billing and analysis, Read More
DB Seminar [Fall 2014]: John Dickerson
Abstract: The preferred treatment for kidney failure is a transplant; however, demand for donor kidneys far outstrips supply. Kidney exchange, an innovation where willing but incompatible patient-donor pairs can exchange organs---via barter cycles and altruist-initiated chains---provides a life-saving alternative. Typically, fielded exchanges act myopically, considering only the current pool of pairs when planning the cycles and chains. Yet kidney exchange is inherently dynamic, with participants arriving and departing. Also, many planned exchange transplants do not go to surgery due to Read More
Summer 2015 Research Internships
The Carnegie Mellon Database Group is offering multiple internship positions for a special summer research project at its Pittsburgh, Pennsylvania campus. It will be an intense 12-week internship from June to August 2015. The project will be to develop a new open-source distributed main-memory database system from scratch. Thus, we are looking for candidates that have strong C/C++ and SQL programming skills. Interns will be paid a three-month summer salary (commensurate with skills and experience) and the cost of travel Read More