October 2014 - Dm-meeting - mailman.cs.vt.edu

Group Meeting tomorrow
by yaozhang 29 Oct '14

29 Oct '14

Hi everyone, Tomorrow Steve will give the presentation of two following papers in our group meeting (12 noon at 3160 conference room): 1. Reverse Engineering Molecular Hypergraphs. BCB 2012. 2. METRIC FORENSICS: A Multi-Level Approach for Mining Volatile Graphs. KDD 2010. Thank you. Regards, Yao

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Group Meeting this Thursday
by yaozhang 23 Oct '14

23 Oct '14

Hi everyone, I will give a presentation of my CIKM paper in our regular group meeting this Thursday. You're very welcomed to give me any feedback. Here is the abstract of the paper: Given an noisy or sampled snapshot of a network, like a contact-network or the blogosphere, in which an infection (or meme/virus) has been spreading for some time, what are the best nodes to immunize (vaccinate)? Manipulating graphs via node removal by itself is an important problem in multiple different domains like epidemiology, public health and social media. Moreover, it is important to account for uncertainty as typically surveillance data on who is infected is limited or the data is sampled. Efficient algorithms for such a problem can help public-health experts take more informed decisions. In this paper, we study the problem of designing vaccine-distribution algorithms under an uncertain environment, with known information consisting of confirmed cases as well as a probability distribution of unknown cases. We formulate the NP-Hard Uncertain Data-Aware Vaccination problem, and design multiple efficient algorithms for factorizable distributions (including a novel sub-quadratic algorithm) which naturally take into account the uncertainty, while providing robust solutions. Finally, we show the effectiveness and scalability of our methods via extensive experiments on real datasets, including large epidemiological and social networks. Regards, Yao

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Meeting Notes (10/16/2014)
by yaozhang 16 Oct '14

16 Oct '14

Hi everyone, Today Subhodip talked about two papers: 1. "Crowdsourcing Land Use Maps via Twitter": the authors used an unsurpervised learning to identify land uses using geo-tagged Tweets in London and Madrid. 2. "Tracking Climate Change Opinions from Twitter Data": this papers attempted to understand whether Twitter dataset can give insights about climate changes. Next week, Yao will give a presentation of his CIKM paper. Regards, Yao

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Meeting tomorrow
by yaozhang 15 Oct '14

15 Oct '14

Hi everyone, Tomorrow, Subhodip will give us his talk at 12noon. Thank you. Regards, Yao

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No group meeting tomorrow
by yaozhang 08 Oct '14

08 Oct '14

Hi everyone, Just make sure everyone is on the same page: there is no group meeting tomorrow. Thank you. Regards, Yao

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Next week's group meeting canceled
by yaozhang 02 Oct '14

02 Oct '14

Hi everyone, Since last week is the deadline for SDM, we won't have the regular group meeting next week. Thank you. Regards, Yao

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Group meeting tomorrow
by Yao 01 Oct '14

01 Oct '14

Hi everyone, Just a kind reminder that we will have our regular group meeting tomorrow at 12noon. Steve will give a talk. Thank you. Regards, Yao

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