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

Meeting Notes (09/25/2014)
by yaozhang 25 Sep '14

25 Sep '14

Hi everyone, Today Liangzhe talked about four papers relating to his research: 1. "Finding Progression Stages in Time-evolving Event Sequences": this paper is interested in finding the class that each sequence belongs to, and assigning each event to a stage. 2. 3. "Discriminating Non-Native English with 350 Words" and "Discriminating Gender on Twitter": these two papers are from the same group, which try to classify non-native English and gender on Twitter. 4. "CMI: An Information-Theoretic Contrast Measure for Enhancing Subspace Cluster and Outlier Detection": this paper aims to find subspaces with strong mutual dependency in the selected dimension set. I uploaded Liangzhe's slides on our group meeting website. You can check them if you're interested. Thank you. Regards, Yao

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Group Meeting Tomorrow
by yaozhang 25 Sep '14

25 Sep '14

Hi everyone, Just keep in mind that we will have a weekly group meeting tomorrow at 12noon. Liangzhe will have a talk. Regards, Yao

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Meeting Notes (09/18/2014)
by yaozhang 18 Sep '14

18 Sep '14

Hi everyone, Today Yao talked about three KDD papers (see our meeting website for more details). "Scalable Diffusion-Aware Optimization of Network Topology": this paper talked about how to add/delete k edges in networks to maximize/minimize the infections given sources. "Core Decomposition of Uncertain Graphs": this paper first defines the (k, eta)-core of uncertain graphs, and proposed an efficient algorithm to perform core decomposition. "Fast Influence-based Coarsening for Large Networks": this papers tries to get a much smaller representation of a large networks while the diffusion characteristics of networks are preserved. Next Thursday Liangzhe will give a talk. Regards, Yao

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Meeting tomorrow at 12noon (Sept. 18)
by yaozhang 17 Sep '14

17 Sep '14

Hi everyone, Just kind reminder that we will have group meeting tomorrow 12noon-1pm at TORG 3160A (conference room). Yao will talk about papers he read recently.

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Meeting Notes (09/11/2014)
by yaozhang 11 Sep '14

11 Sep '14

Hi everyone, Today Sorour talked about three papers in KDD 2014. You can check these papers in our dm-meeting website. 1. "Effective Global Approaches for Mutual Information Based on Feature Selection": this paper introduces multiple solutions for Mutual Information based feature selection including a QP framework with efficient approximations. 2. "Active Semi-Supervised Learning Using Sampling Theory for Graph Signals": this paper provides an active semi-supervised learning framwork using graph signals. 3. "Learning multifractal structure in large networks": this paper analyzes and improves a graph generator called the multifractal network generator (MFNG). The next meeting will be next Thursday (09/18), and Yao will present some papers. Regards, Yao

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Meeting Notes (09/11/2014)
by yaozhang 11 Sep '14

11 Sep '14

Hi everyone, Today Sorour talked about three papers in KDD 2014. You can check these papers in our dm-meeting website. 1. "Effective Global Approaches for Mutual Information Based on Feature Selection": this paper introduces multiple solutions for Mutual Information based feature selection including a QP framework with efficient approximations. 2. "Active Semi-Supervised Learning Using Sampling Theory for Graph Signals": this paper provides an active semi-supervised learning framwork using graph signals. 3. "Learning multifractal structure in large networks": this paper analyzes and improves a graph generator called the multifractal network generator (MFNG). The next meeting will be next Thursday (09/18), and Yao will present some papers. Regards, Yao Seminar website: http://people.cs.vt.edu/~yaozhang/dm-meeting/ Please contact Yao Zhang, if interested in giving a talk.

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Meeting tomorrow at 12noon (Sept. 11)
by yaozhang 11 Sep '14

11 Sep '14

Hi everyone, Just kind reminder that our group meeting will be tomorrow 12noon-1pm at TORG 3160A (conference room). Sorour will talk about the KDD papers. Regards, Yao

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absent for meeting tomorrow
by Steve Jan 10 Sep '14

10 Sep '14

Dear all, I just found that I can not go to our meeting tomorrow because I have schedule conflict between our meeting and my office hour, my office hour is held on the weeks before and due of the homework, therefore, I may not got to DM meeting tomorrow. I will try to solve this problem with class instructor. Have a great meeting tomorrow! Thanks. Best, Steve

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Meeting Notes (09/04/2014)
by yaozhang 04 Sep '14

04 Sep '14

Hi everyone, Today Elaheh talked about three papers she liked in KDD. 1. "Focused Clustering and Outlier Detection in Large Attributed Graphs": this paper describes how to find focused clusters and detect outliers in the focused clusters in the graphs with node features. 2. "Event detection in activity networks": this paper tries to identify parts of the network with unusual high activity confined in a small space or in a dense part of the graph. 3. "GLAD: Group Anomaly Detection in Social Media Analysis": this tries to find groups which exhibit a pattern that is different from the majority of groups (group anomaly). The authors also detect group anomaly in the dynamic settings. If you are interested in these paper, please go to our website: http://people.cs.vt.edu/~yaozhang/dm-meeting/. I uploaded the papers as well as Elaheh's slides to our website. Thank you. Regards, Yao

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Meeting Schedule
by yaozhang 04 Sep '14

04 Sep '14

Hi everyone, I've created our meeting website: http://people.cs.vt.edu/~yaozhang/dm-meeting/ I also set up the first round speaker schedule (it is on the website as well). 09/11/2014 Sorour Ekhtiari 09/18/2014 Yao Zhang 09/25/2014 Liangzhe Chen 10/02/2014 Subhodip Biswas 10/09/2014 Steve Jan If you are not available on the day I scheduled, please contact me. I will swap with someone on the list. Also feel free to invite other people to the meeting if you feel they would be interested. Especially if they want to give a talk. (say Naren's students or Chris' students). But always make sure to check with Aditya first, in case they want to give a talk. Thank you. Regards, Yao

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