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Comment: I believe the results are true (Score 2) 141

by danielcolchete (#45259377) Attached to: CAPTCHA Busted? Company Claims To Have Broken Protection System

From the video, I think they used mathematical optimization. Multiobjective vectorial optimization if I had to guess. The big breakthrough here is that instead of OCR'ing the image they tried to rerun the captcha construction algorithm controlling the random choices the algorithm makes. Each choice is a variable here. Them you implement a function that measures how close this variables get to the CAPTCHA image. Now you use optimization to get to the global minimum of this function.

At least that is how I would have done it.

Comment: Internal Spam is the new problem (Score 1) 279

by danielcolchete (#42386633) Attached to: Ask Slashdot: Dealing With Anti-Spam Service Extortion?

Here on my ISP we get the same problem from time to time. We have a very strong antispam policy regarding our own users (about 40k) and they usually understand it. Our main problem right now are hijacked user accounts. So we have systems in place the blocks users/passwords after they start sending spam, but only after a few hundred were already sent (we are improving on that shortly). While this has led to a much lower RBL block rate, we still get one from time to time. In that case we remove that mail server from our cluster for a week. You only get ASN blocked if there are too many IPs sending spams on your network. There is no other way: watch your users, specially the web hosting users (PHP's mail() should be deactivated). RBLs works on the premise that they should block any spam regardless of any other traffic you might have. Reputation systems knows better. In any case, no one will like your network as long as your users keep sending spams. Your only complaint about UCE is because they charge to unblock your IP. The others don't charge and will just not unblock it.

Comment: Board meeting at carrier (Score 2) 270

by danielcolchete (#39985581) Attached to: Facebook Is Killing Text Messaging

CEO: Listen everyone, today we will create a service that will charge a hundred times more to send only a few bytes, less than 200 bytes.
Board: But anyone can do it almost for free through the Internet!
CEO: So our true cost here will be to keep the internet from the users as much as possible. We have to use every weapon available: charge too much, give them horrible smartphones, have phone makers in our hands, etc.
Board: Hey, Apple and Google released smartphones allowing anyone to write an app for it.
CEO: Crap! Well, at least we could hold the world on our hands for almost ten years... Shame we lost it...

Comment: A strong sign of incompetence (Score 1) 709

by danielcolchete (#38872667) Attached to: DHS Sends Tourists Home Over Twitter Jokes

Look, when the best they can do is this it means that they are not doing anything else good. Really, someone inside though: "Finally something for me to work on!".

I dont like Venezuela because there is a guy there that if you piss him off then you are in trouble, you know, like a dictator. I guess the US is not going a path that is so different. Someone doesn't like your twitter joke and you are in trouble? Oh man... It is really bad.

But I think that the DOJ is even worse than the DHS. They don't seem to work by any law, and they think of no other consequence in name of stopping piracy. So, the DOJ is really the record labels, a small group of people in power of the whole population. Another sign of dictatorship. I really wish the US will get more democratic soon...

Comment: They screwed it with the new release process (Score 5, Insightful) 511

by danielcolchete (#38238372) Attached to: Chrome Becoming World's Second Most Popular Web Browser
Do you know what changed between FF4 and FF10? Almost nothing! Really! From FF6 to FF10 it is nothing for sure. But they managed to break addon compability 7 times in between. So, from what I understood, we were going to have releases from often so that we could get more features more frequently. We got nothing! Or almost nothing. I jumped of from FF6 to Chrome and I lived happily ever after. By the way, 5% of the Internet users are stuck with the outdated FF3.6 today, without the HTML5 advances of FF4 and FF6, because of this new release process. It is as if we need another browser vendor holding the web back. Thank you Mozilla.

Comment: Wow, that is a terrible page to read (Score 1) 134

by danielcolchete (#37423672) Attached to: River Trail — Intel's Parallel JavaScript
We need some sort of metrics here. The I Programmer article content here is using only 314x1213 pixels on my laptop. The whole page have 1160x2078! Only about 16% of my screen area is the article's content. This is like listening to 50 minutes of commercials every hour on the radio. No one would accept that on the radio and I say we shouldn't here. Thanks!

Comment: Daniel van Ham Colchete (Score 1) 841

by danielcolchete (#34048164) Attached to: Researchers Find a 'Liberal Gene'
I would like to point out that this research didn`t find a causality. To do that one would have to get 2000 new borns, turn that gene on for half and off for the other half. Watch them for 50ish years and them come to that conclusion. So, what we have here is a correlation. It doesn`t exclude other types of root causes like: you will very likely have political views similar to your parent`s. Of course this is not the issue here, but unless a causality is determined the research didn`t rule the rest out.
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+ - Google's IT Infrastructure Secrets

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Ponca City, We Love You
Ponca City, We Love You writes "The Wall Street Journal has an interesting interview with Douglas Merrill, Google Inc.'s chief information officer on how Google gives their workers the technology they need and keeps them safe without imposing too many restrictions on how they do their job. On Google's IT structure: "Google's model is choice. We let employees choose from a bunch of different machines and different operating systems, and [my support group] supports all of them. It's a little bit less cost-efficient — but on the other hand, I get slightly more productivity from my [Google's] employees." On Security: "The traditional security model is to try to tightly lock down endpoints, and it makes people sleep better at night, but it doesn't actually give them security. We have programs in our infrastructure to watch for strange behavior. This means I don't have to worry about the endpoint as much." On Enterprise Software: "Fifteen years ago, enterprise technology was higher-quality than consumer technology. That's not true anymore. It used to be that you used enterprise technology because you wanted uptime, security and speed. None of those things are as good in enterprise software anymore. The biggest thing to ask is, "When consumer software is useful, how can I use it to get costs out of my environment?"""

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