2012年8月13日月曜日

Origin-Destination Data Generation

Deriving origin–destination data from a mobile phone network
http://www.esi2.us.es/GT/docs/iet_art1.pdf

DYNAMIC ORIGIN-DESTINATION MATRIX ESTIMATION AND PREDICTION FOR REAL- TIME TRAFFIC MANAGEMENT SYSTEMS
http://trid.trb.org/view.aspx?id=640422

Time-Varying Network Tomography : Router Link Data
ftp://cs.bell-labs.com/cm/stat/doc/NetTomography.pdf

Development of Revised Methodology for Collecting Origin-Destination Data
http://www.dot.state.fl.us/research-center/Completed_Proj/Summary_PL/FDOT_BD544_30_rpt.pdf


Real-Time Estimation of Origin-Destination Matrices with Partial Trajectories from Electronic Toll Collection Tag Data

http://pubsindex.trb.org/view.aspx?id=775157


Dynamic Origin–Destination Demand Estimation Using Automatic Vehicle Identification Data

http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1603556&userType=inst


Distributed Approach for Estimation of Dynamic Origin—Destination Demand
http://trb.metapress.com/content/96400l51428r4737/

2012年8月9日木曜日

Gephi

Gephi (http://gephi.org/)


Gephi is an open-source and multiplatform software distributed under the dual license CDDL 1.0 and GNU General Public License v3.
Layout algorithms give the shape to the graph. Gephi provides state-of-the-art algorithms layout algorithms, both for efficiency and quality. The Layout palette allows user to change layout settings while running, and therefore dramatically increase user feedback and experience: Force-based algorithms or Multi-level algorithms (graph coarsening). 

Video demonstration : 
https://gephi.org/videos/

Time-evolving network visualization

Hashikawa-kun will be working on the time-evolving twitter network since 2006.

The reference demo might be as follows :

Egyptian Revolution on Twitter
https://gephi.org/tag/dynamics/

http://www.youtube.com/watch?v=9guRNGiNBAg
http://www.youtube.com/watch?v=KKNxulf7RNg&feature=relmfu
http://www.youtube.com/watch?v=Hos4m3iO108&feature=related
http://www.youtube.com/watch?v=hI-7wteRv7E
http://computationallegalstudies.com/2010/01/06/the-time-evolving-structure-of-the-gawaher-islamic-forum-as-experienced-by-umar-farouk-abdulmutallab-the-christmas-day-bomber/
http://www.youtube.com/watch?v=a7uTKwbsFtg&feature=related


Not relevant but still interesting visualization:
http://www.evolutionoftheweb.com/?hl=ja#/growth/day




2012年8月2日木曜日

Research on Microblog services / Twitter

What is Twitter, a Social Network or a News Media?http://an.kaist.ac.kr/~haewoon/papers/2010-www-twitter.pdf

A geographic study of tie strength in social media
http://dl.acm.org/citation.cfm?id=2063959&CFID=100588297&CFTOKEN=89581781

Outtweeting the Twitterers - Predicting Information Cascades in Microblogs
http://static.usenix.org/event/wosn10/tech/full_papers/Galuba.pdf

Why Rumors Spread Fast in Social Networks
http://www.mpi-inf.mpg.de/~tfried/paper/2012CACM.pdf

Measuring Behavioral Trust in Social Network
http://www.cs.rpi.edu/research/pdf/10-03.pdf

Time-Based Sampling of Social Network Activity Graphs
http://www.cs.purdue.edu/homes/neville/papers/ahmed-mlg2010.pdf


Massive Social Network Analysis: Mining Twitter for Social Good

http://www.cc.gatech.edu/~bader/papers/MassiveTwitter-ICPP2010.pdf


Understanding Latent Interactions in Online Social Networks

http://cs.ucsb.edu/~Ravenben/publications/pdf/renren-imc10.pdf


Facebook

As I introduced it a bit at yesterday's seminar, the crawled data set for Facebook is downloadable from the following URL.
http://suzumura-lab.blogspot.jp/2010/12/streamgraph-facebook-data.html