September 2013 - Dm-meeting - mailman.cs.vt.edu

Thursday, Oct 3rd @ 1pm
by yaozhang 27 Sep '13

27 Sep '13

Hi guys, Don't forget that we will have the regular meeting next Thursday (Oct 3rd) 1pm at 3160a Torg. (conference room). Regards, Yao * Interested in giving a talk at the DM-Meeting? Send an email to yaozhang(a)cs.vt.edu with a short description of the talk.

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Fwd: NDSSL graduate seminar Today 2:30pm
by B. Aditya Prakash 27 Sep '13

27 Sep '13

just FYI: might be interesting to listen in... cheers, - Aditya -------- Original Message -------- Subject: NDSSL graduate seminar Today 2:30pm Date: Fri, 27 Sep 2013 07:46:56 -0400 (EDT) From: Abhijin Adiga <abhijin(a)vbi.vt.edu> To: ndssl-all(a)vbi.vt.edu CC: Kaja Abbas <kaja.abbas(a)vt.edu>, "B. Aditya Prakash" <badityap(a)cs.vt.edu> All, Details of today's talk(s) are given below: 2nd floor conference room (2018). adobeconnect: http://vbi.adobeconnect.com/seminar9-27-13/ Dial in 866-842-5779 conference code: 539-160-8274 Speaker: Stephen Eubank Title: Teaching an old dog new tricks: Network reliability Abstract: I will introduce a mathematical methodology for understanding network reliability. The central object in this theory is the reliability polynomial. The talk will explore how the reliability polynomial is related to partition functions in physics and other well-known transformations. I will describe how our FastDiffuse algorithm could take advantage of these ideas, and how we can use FastDiffuse to estimate terms in the polynomial. The talk will illustrate how we can apply these ideas to questions that we have been studying over the past year, and most importantly, to the general question of how to characterize graph structure in a way that is immediately dynamically relevant. These illustrations provide just a peek into the power of this methodology – an in-depth exploration of any of them would be a suitable thesis topic, in my opinion. Speaker: Jose Cadena Title: Forecasting Social Unrest Using Activity Cascades in Twitter Abstract: We present an event forecasting model using the notion of activity cascades in Twitter to predict the oc- currence of protests in multiple countries of Latin America. The basic assumption is that the emergence of a suitably de- tected activity cascade is a precursor or a surrogate to a real protest event that will happen on the ground." Our model supports the theoretical characterization of large cascades using spectral properties and uses properties of detected cas- cades to forecast events, including the `when' and `where' of the protest. Experimental results on many datasets, includ- ing the recent June 2013 protests in Brazil, demonstrate the effectiveness of our approach. Hope to see you there! Sincerely Abhijin and Gizem

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Rambo speed problem
by Liangzhe Chen 23 Sep '13

23 Sep '13

Hi all, I've contacted Patrick about the rambo server, he told me that there're many people who could use rambo now and he's not clear the exact number, but most of them were not utilizing the system much. Last Wednesday he has just talked to those who used rambo in a bad way, so rambo should be working fine now. If any of us find the problem persisting, let me or Patrick know. Thanks, Liangzhe Chen

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Meeting notes (Sept 19, 2013)
by yaozhang 19 Sep '13

19 Sep '13

Hi guys, Hope you enjoy the meeting. Here are the meeting summary: 1. Everyone gave the brief introduction. 2. Liangzhe will check the running problem of Rambo server. 3. Yao introduced two papers from KDD 2013: "Extracting social events for learning better information diffusion models": this paper talked about how to combine external trends and social influence to learn the propagation probability for IC model. "Trace complexity of network inference": this paper told us how many 'traces' we need to make a good prediction of network which had a theoretical analysis and two approximate algorithms over the tree and degree bounded graph. 4. Liangzhe introduced a KDD 2013 paper "debiasing social wisdom": this paper talked about how to form a social wisdom from different opinions in social media. 5. Ben presented a WWW 2013 paper "groundhog day near-duplicate detection on twitter": this paper wanted to detect near-duplicate content on twitter. They categorized different levels of duplicate tweets. Btw the next meet date is Oct 3 Thursday. Regards, Yao * Interested in giving a talk at the DM-Meeting? Send an email to yaozhang(a)cs.vt.edu with a short description of the talk.

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Meeting notes (Sept 19, 2013)
by Yao Zhang 19 Sep '13

19 Sep '13

Hi guys, Hope you enjoy the meeting. Here are the meeting summary: 1. Everyone gave the brief introduction. 2. Liangzhe will check the running problem of Rambo server. 3. Yao introduced two papers from KDD 2013: "Extracting social events for learning better information diffusion models": this paper talked about how to combine external trends and social influence to learn the propagation probability for IC model. "Trace complexity of network inference": this paper told us how many 'traces' we need to make a good prediction of network which had a theoretical analysis and two approximate algorithms over the tree and degree bounded graph. 4. Liangzhe introduced a KDD 2013 paper "debiasing social wisdom": this paper talked about how to form a social wisdom from different opinions in social media. 5. Ben presented a WWW 2013 paper "groundhog day near-duplicate detection on twitter": this paper wanted to detect near-duplicate content on twitter. They categorized different levels of duplicate tweets. Btw the next meet date is Oct 3 Thursday. Regards, Yao * Interested in giving a talk at the DM-Meeting? Send an email to yaozhang(a)cs.vt.edu with a short description of the talk.

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Thursday, Sept 19 @ 1pm
by yaozhang 18 Sep '13

18 Sep '13

Hi guys, WHAT: Introduction of the group members. Round table discussion (highlights of KDD and WWW 2014: at least 2 papers by each) WHEN: Thursday Sept 19, 1-2pm WHERE: 3160a Torg. (conference room) Regards, Yao * Interested in giving a talk at the DM-Meeting? Send an email to yaozhang(a)cs.vt.edu with a short description of the talk.

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Thursday, Sept 19 @ 1pm
by B. Aditya Prakash 16 Sep '13

16 Sep '13

*What:* Introduction of the group members. Round table discussion (highlights of KDD and WWW 2014: at least 2 papers by each) * When: *Thursday Sept 19, 1-2pm * Where: *3160a Torg. (conference room) Footnote: * Interested in giving a talk at the DM-Meeting? Send an email to yaozhang(a)cs.vt.edu with a short description of the talk.

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