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olihb

144 karma · joined May 20, 2009

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olihb··on The Vector Space of the Polish Parliament in Pictures
Very cool, I did the same thing a while back for the Canadian Parliament. Unfortunately, the party discipline in Canadian politics makes it less interesting.

It has done in flash, when flash was cool... http://olihb.com/2011/02/27/legislative-explorer/

olihb··on Many McGill Education Students Cannot Calculate an Average
I'm just saying that we must be careful citing CSDM numbers because they represent a special situation. The CSDM have a lot of first generation immigrants, poor students, students with learning disabilities, etc. The middle class students are in good schools in the suburbs or in private schools.

The CSDM in Montreal has such a bad reputation that if you're not accepted in a specialized program (let say, international baccalaureate), you go to a private school if you can afford it (4k$/year). And don't let me start about union rules for new teachers...

On the other hand, if you're a special ed teacher, CSDM is hiring like crazy. Not so much for math, social science, french, English teachers though.

olihb··on Many McGill Education Students Cannot Calculate an Average
As anything else, the situation is more nuanced. Quebec schools as a whole are pretty good: http://www.theglobeandmail.com/globe-debate/editorials/quebe...

The problem is that good students are mostly in private schools and specialized programs (international programs) so "regular classes" in public schools contain a lot of low performing students and students with disabilities.

My gf is a public high school teacher in Montreal and they do miracles everyday with the low amount of resources that they have to work with. She has a M.Sc. in her specialization (history), but do mostly special education tasks since the student level are so low.

olihb··on Canadians need to get angry about government spying revelations
It's still a project from minority government and all institutions/cities can withdraw from it. Montreal(1.65M pop) said that it will not apply the charter in their city.

It still has a long way to go, but it's a good way to change the political agenda and pit rural areas and cities against each other.

The worst thing about this charter is not that it makes a clear separation between church and state (like in France), but rather that some religions are "more equal" than others (for example, the crucifix will remain in the legislative chamber).

So yeah, it's more of a "let's get everybody in the province riled up and angry at each other instead of creating jobs and fixing real problems." And since the separatist option is stuck at 30%, that's pretty much the best the Parti Québecois can do to please their troops.

olihb··on Interactive map of all scientific papers from the arXiv
Right, but there's a subset of Open Access articles from Pubmed: http://www.ncbi.nlm.nih.gov/pmc/tools/openftlist/
olihb··on How Not to DDoS Your Former Employer
Not illegal at all. We have plenty of towns with English names.
olihb··on A Map of the Geographical Structure of Wikipedia Links
Author here. What I find really interesting about this map is that the articles seem connected at a local level instead of internationally.

When you think about it, it makes a lot of sense because usually article will say: "this city is near this other city".

olihb··on The one million tweet map
Very nice and more interesting than the bar charts/graph that other twitter visualization tools give us. It would be really cool (and informative) if you could add a small word cloud when the cursor hovers over a city.

I did a similar non-interactive dataviz a while ago during the big student protests in Quebec this spring. I clustered (using LDA) the tweets talking about the protests and I mapped and identified them.

http://olihb.com/?p=199 (in French, though)

olihb··on Sexual Harassment at DefCon (and Other Hacker Cons)
No.

Women (and men) are attracted to assertive behavior, not aggressive behavior. Huge difference.

olihb··on Show HN: Beautiful Visualization of Agreement Groups in the US Senate
It's not the same data, but I did a PCA with the voting record of Canadian MPs. It's a bit old, so it's in flash instead of html5. You can access it here: http://www.votum.ca
olihb··on Google flushes heat from data center with toilet water
In the video, they say that the water is filtered and chlorinated before going into the cooling system.
olihb··on Send SMS messages from any sender
This doesn't work on my cellphone's voicemail. I guess the new systems closed that hole.
olihb··on An Interactive Map of American Migration
Nice. It would be very interesting to correlate the migration with unemployment. The outliers (eg: bad economy but migration influx) would be even more interesting.

By the way, I did something similar for scientific collaboration between Metropolitan Statistical Areas: http://olihb.com/?p=140

olihb··on How Did Israel Become “Start-Up Nation”?
Exactly. These phenomena are notoriously non-linear.

IMHO, the best way to calculate a good index is to model (usually log-transformed) the relationship between the venture capital dollars and the population (or overall investment, number of degree awarded by year, money invested in R&D, etc.), then take the ratio between the expected value and observed value. The resulting index is less sensible to scale issues.

olihb··on Scientific Community to Elsevier: Drop Dead
I really don't like Elsevier, but the alternatives do not really exist.

Most open Access aggregators are of dubious quality and don't provide an interface for peer-reviewing. Even worst, the harvesting standard (OAI) is implemented in so many different ways and no two sites/platform implement it in a consistent way. Scopus also extract references, citations, addresses, etc. which are necessary to compute influence and impact.

Microsoft Academic and Google Scholar are starting to look as an alternative, but I'm wouldn't be surprised if they licensed their data from Elsevier&Thomson.

Until these services are duplicated in the Open Access community, Elsevier will still be needed.

olihb··on The Cost of Knowledge: Researchers taking a stand against Elsevier.
I really don't like Elsevier, but the alternatives don't exist

Most open Access databases are of dubious quality and don't provide an interface for peer-reviewing. Even worst, the harvesting standard (OAI) is implemented in many different ways depending on the site. Scopus also extract references, citations, addresses, etc. which are necessary to compute influence and impact.

Microsoft Academic and Google Scholar are starting to look as an alternative, but I'm wouldn't be surprised if they licensed their data from Elsevier&Thomson.

Until these services are duplicated in the Open Access community, Elsevier will still be needed.

olihb··on Louis C.K. experiment results: over $500,000 in 4 days
I'm sure that most big production/distribution houses are not panicking because it's still a new way to distribute content and it's a niche product, but I'm wondering what they are thinking of this right now. Do they view this as an emerging trend or just as a fad?
olihb··on I quit my job to do a startup.
I was a market research for a couple of years, and 1,25$ per completed survey is cheap if you don't manage your own panel database.

We paid around 3.50$ per respondent (french speaking adults in Quebec) and it was significantly more for specific attributes. We used GMI for our samples. Phones survey were more expensive, something like 0.25$/question/respondent.

olihb··on Mythbusters experiment goes awry, sends cannonball through two houses
It seems I cannot reply to TeMPOraL, but here are some citations:

Iyengar, S. 1991. Is Anyone Responsible? How Television Frames Political Issues. Chicago : The University of Chicago Press.

Iyengar, S. et Kinder, D. R. 1987. News That Matters: Television and American Opinion. Chicago : The University of Chicago Press.

The New Videomalaise : Effects of Televised Incivility on Political Trust DC Mutz - American Political Science Review, 2005 - Cambridge Univ Press http://www.jstor.org/pss/30038915

My M.Sc. in PolSci was useful after all... A third of my master thesis is on that very subject, but it's in french...

olihb··on The same data, the same map, different stories
Nice, but most visualizations don't take in account the scaling effects present in the data. Most social science systems are wildly non-linear.

IMHO, the best way is to try to model the data, then calculate the ratio between the predicted and the observed (real) data point. From there, you would have an index that account for the scaling in the system. The problem is that the model needs a good number of points and the data should not be too heteroscedastic. It's the hot new thing in scientometrics...

olihb··on Fuzzy string search
We use aho-corasick to extract keywords from terabyte size corpus. Works really well but you have to build your matching tree before.
olihb··on What Is a Data Scientist?
I work in scientometrics, which is like econometrics but with scientific papers and patents (patents are not optimal, but it's an adequate proxy for innovation). It's useful to detect new trends in science and adjust funding accordingly.

We do a lot of data mining, information extraction from very organic sources, data visualization, etc. It's a growing field and it's very challenging and we have access to incredible datasets.

I think I fit their definition of a data scientist, but I'll never use that title. It's pompous and sounds something like someone in marketing would make up (and I worked as a market research analyst for a number of years). My title is simply research analyst.

Data scientist is bad, but the worst title I've seen was: web strategist & tactician

olihb··on Amazon Kindle Fire Teardown
This is crazy, the CPU is under the RAM chip (step 9). Is this kind of layout frequent? I guess you can't have a high power (and high heat dissipation)...
olihb··on Adobe Donating Flex to Open Source Foundation
I invested a lot of time in learning and deploying Flex. It's been a lifesaver when I had to code quick visualizations, dashboards, analytic tools, db interfaces, etc.

Now I would like to transition over HTML5, but it seems that all the tools and frameworks are incomplete, not easy to integrate, etc. and now I need to know javascript, html, css, etc. and the language to code the backend (In my case usually very CPU intensive). With Flex I only needed to know as3 and my backend language.

What would be best framework similar to Flex that would abstract the ugliness of javascript, html and css? It's not my idea of a fun time to fight layout bugs and different javascript/css/html implementations.

olihb··on Twitter Trends Beat Analysts In Predicting Wall Street
I heard about that on a forum a while ago, but my point was that when you find a novel way to profit from the stock market you keep your mouth shut.
olihb··on Twitter Trends Beat Analysts In Predicting Wall Street
I'm sure that plenty of hedge funds were using these feeds (blogs, twitter, etc.) for years.

They just kept their mouth shut because it's foolish to broadcast that you have an edge on your competitors... I bet that since it's out in the open, it's now obsolete...

olihb··on UC Berkeley Scientists Translate Brainwaves into Imagery
It's only an uneducated guess, but if the visual part of thoughts are generated in the visual cortex, then the device might be able to see those thoughts.

On the other hand, this whole thing is starting to look like the Deus Ex Trailer...

olihb··on Speed-of-light experiments yield baffling result at LHC
Scientist rarely keep the data secret. It's the basis of peer review. There's a reason why open access journals (PLoS One) are getting so popular, scientists want to be known and publish. In my experience, ego is a currency much more valuable than money in academic circles.
olihb··on Samsung sees 300% growth in smartphone market share
I just got a Galaxy S2 and it's a really good phone. I've shown it to iPhone users and they were impressed by the quality of the screen and the fact that it's so light.

The DLNA App is really cool, you can broadcast your movies, pictures, etc. from your phone to windows media player without configuring anything. Really useful to show short clips filmed with the phone.

Sorry to sound like a fanboy, but I think this phone will, like you said, really give the iPhone a run for its money.

olihb··on Would you purchase hardware with your own money to use at work?
Depends on what you do. I work in data analysis and our datasets are enormous and since RAM is cheaper than time, we load as much as we can in RAM. 16GB, 6 cores + SSD are standard issue. :-)
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