Archive for March, 2013

crackoogle: google users and abusers

Thursday, March 28th, 2013

“… Google has asked us to build our lives around it, and we have responded…Encyclopaedias? Antiques. Book shelves and file cabinets? Who needs them? And once we all become comfortable with that, we begin rearranging our mental architecture. We stop memorising key data points and start learning how to ask the right questions. We begin to think differently. About lots of things. We stop keeping a mental model of the physical geography of the world around us, because why bother? We can call up an incredibly detailed and accurate map of the world, complete with satellite and street-level images, whenever we want. … The bottom line is that the more we all participate in this world, the more we come to depend on it. The more it becomes the world. … That’s a lot of power to put in the hands of a company … But in the long run that’s a problem for Google. Because we tend not to entrust this sort of critical public infrastructure to the private sector. Network externalities are all fine and good to ignore so long as they mainly apply to the sharing of news and pics from a weekend trip with college friends. Once they concern large swathes of economic output and the cognitive activity of millions of people, it is difficult to keep the government out. “Google’s Google problem

london's daytime population 2010

Friday, March 22nd, 2013

interesting post and


World Bank Data Dive

Monday, March 18th, 2013

in “march 16 and 17 in Washington DC (#data4good). People who rarely work together — coders, quants, data visualizers, procurement experts, economists, lawyers, students, senior managers, open data evangelists — ended up at the same table for 36 hours of intense work, united by their love of data. The goals were attractive. How can we measure poverty more often and more accurately? Can we detect fraud by looking at the data?”

here is a list of projects: preliminary list; editable list;

blog posts 1, 2, 3

Women’s A Line Skirt – Red Heart / White Arrow / Black

Friday, March 8th, 2013

This red heart / white arrow / black a line skirt is great for fall and spring. It can be worn with a nice dress or for a more casual look you can wear it over jeans. The large collar with the three large black buttons is a very traditional look that says you have lots of class about you. When it gets warmer you can push the sleeves up and secure them with the strap and button provided. The a line skirt is mid-thigh in length which makes your legs look lean and long. You will be ahead of the fashion trends when you wear this a line skirt and all your friends will want one too. This available in the pretty blue as pictured but it can also be ordered in a very nice grey color. It has two large pockets in the front great for holding small items. This is available in a small, medium, large, and extra-large.

cscw 2013

Friday, March 1st, 2013

Photographer Paths: Sequence Alignment of Geotagged Photos for Exploration-based Route Planning (pdf, blog, slides)
problem:  how can we build city route planners that ‘automatically’ compute route plans based not on efficiency, but on people’s trailing city experiences?
proposal: use a sequence alignment technique from biology
evaluation:  lab + web survey + interviews (well done)

Using Facebook after losing a job: Differential benefits of strong and weak ties (ACM pdf)
problem: @grammarnerd presents awesome work pairing surveys with Facebook log data to see what ties predict support & finding new job
results: social support and lowering of stress both increase with strong ties communication. Surprisingly, bridging social capital increases with not only weak-tie communication but

also with strong-tie communication (which is not about reading but it’s about talking to them).  talking with strong ties for people who are looking for jobs increases  stress level, while talking with strong ties for people who have  jobs decreases stress level BUT talking more to strong, not weak, ties was twice as likely to lead to a new job.

Trend Makers and Trend Spotters in a Mobile Application (pdf, slides)
questions: WHO creates trends in a mobile sharing app? accidentals or influentials?
answer: influentials DO exist, yet they are not few but many!
application: identify trends early on (recsys paper pdf)

Finger On The Pulse: Identifying Deprivation Using Transit Flow Analysis (pdf, blog,  slides)
problem: can we assess a city’s health by monitoring the flow of people, just like a nurse takes your heart-rate and blood pressure during a health check?
answer: yes! using passenger flow, diversity of passenger geographic connections, and use of transport modality, one can effectively do so!

Ubiquitous Crowd-sourcing into Context (pdf)
problem:  ”investigate what contextual factors correlate with coverage of OSM information in urban settings”
results: ” although there is a direct correlation between population density and information coverage, other socio-economic factors also play an important role. We discuss the implications of these findings with respect to the design of urban crowd-sourcing applications.”

Major Life Changes and Behavioral Markers in Social Media: Case of Childbirth ()
very interesting work by @munmun10, looking at linguistic markers pre and post childbirth. also, see great work to be published in chi 2013 on this.

User-Centric Evaluation of a K-Furthest Neighbor Collaborative Filtering Recommender Algorithm (pdf)
problem: instead of using KNN for recommending stuff, they came up with KFN!
KNN: recommend movies that are liked by people similar to you
KFN: recommend movies that are disliked by people dissimilar to you
results: KNN recommends movies that users have seen; KNN and KFN both recommend movies that user likes

Digital Neighborhood Watch: Investigating the Sharing of Camera Data Amongst Neighbors ()
idea: neighborhood watch supported by webcams.
comment: the privacy angle is of great importance.

Representation and Communication: Challenges in Interpreting Large Social Media Datasets (pdf)
idea: study of “four features of Foursquare’s use: the relationship between attendance and check-ins, event check-ins, commercial incentives to check-in, and lastly humorous check-ins These points show how large data analysis is affected by the end user uses to which social networks are put.”

Hollaback!: The Role of Collective Storytelling Online in a Social Movement Organization (pdf)
idea: can sharing a story of experienced harassment really make a difference to an individual or a community?

Doodle Around the World: Online Scheduling Behavior Reflects Cultural Differences in Time Perception and Group Decision-Making (pdf, blog, data)
question: “Does (national) culture determine how we schedule events online?”
answer: yes, it does! big time ;) individualists strategically respond late, but are less likely to find consensus, while collectivists seem to make a larger effort to reach mutual agreement

also, interesting the keynote talk by ron burt on the serial closure hypothesis (pdf) and the special session dedicated to the
conference’s most cited paper*, where: “The authors will re-present
the original papers using their original slides, and then discuss
developments in the field since then.” The paper is “Grouplens: an open architecture for collaborative filtering of net news” (CSCW 1994)