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Comment It doesn't have to be all or nothing (Score 1) 60

I mean, please add all the methods possible to discriminate between bots and humans. For instance, if someone replies to a tweet in less than 5 seconds with a 200+ character response, mark it as a potential bot post. Other sorts of controls could be added too that mark potential tweets as sent by bots or automated accounts. With all the tools at Twitter's disposal, it seems that they are explicitly NOT looking for ways to discriminate between bots and humans. This is likely for commercial reasons.

Twitter can be a playground for both bots and humans, but detecting the bots and marking their tweets as such could be a great way to help level the playing field and would help humans understand how the information is really flowing through the site. It doesn't have to be all blue checks and biometrics, but those are good as well.

Comment Not a very general result really (Score 1) 79

This result is extremely narrow and does not offer any generality. In the specific problems space the researchers attacked they did not find that quantum computers were better than classical computers. What they state in the paper is something far more specific and thus less powerful. The comparison is between a 2D quantum grid of 1 qubit and 2 qubit gates versus a classical (probabilistic) circuit. They found that in the classical (probabilistic) circuit there is a strong lower bound on the depth of gates required to solve the problem (log n, where n is the size of the input). In the quantum grid case the depth remains constant as the computation is carried out over a 2D quantum grid.

Both Science and other write ups about this result, including this post, seems to paint this result very generally and it simply isn't. It's not an algorithm, the paper does not pit quantum vs classical computers, simply circuits. There is no analysis as to the size of the quantum grid required w.r.t. the size of the input, only the depth of the circuit. Also by leaning on probabilistic classical circuits they move the goalposts into an exotically small portion of the problem space.

The result is rather great, but it is nothing like the media is portraying and it is not a general result at all. Please don't take the above as anything other than media critique and clarification of the results in the paper.

Comment Re:Knowledge (Score 1) 197

This! A Ton! I get a lot out of scientific conferences for this reason exactly. I go to SIGPLAN conferences to see what is out there. To get a glimpse of what is just now becoming understood in a way that will be applicable to my work in the future. Sometimes, that future is closer than I initially think.

Continuing to expose yourself to new ideas in the field keeps you sharp. Exposure to the creators of libraries and tools can keep you grounded as well. Also, depending on your interests and the presenters sometimes you can find a mentor as well.

Comment Just Hurry Up and Take my Money (Score 1) 183

I woke up to an awesome email about every game on my wishlist and I just want to give them my damn money! I got into the office a little late and now I'm having to do work instead of drool over a bunch of killer cheap games.

I hope valve hurries up and fixes the problem so they can take my damned money! I guess this will be a productive Friday after all... What yak shaving tasks do I have today?

Comment Re:firing squads have one blank. (Score 2) 1160

Except, at least in the US, it is not necessarily cheaper to execute someone that to imprison them for life. Life without parole (LWOP) cases can cost more depending on how long the individual is imprisoned. However, it's really hard to know the true cost of either as there are different knock on costs from each type.

In the LWOP cases if the person receiving the sentence is really young then it will likely cost roughly between $1-$3 million to imprison that person for the rest of their lives. However, in California's recent past it was determined that executions cost about $3 million per execution. Some might argue that California wasn't very efficient at execution, unlike Texas, but the price for executions in Texas is comparable.

It's actually quite difficult to figure out the actual cost, but we do know a few details to help reason through the costs. Due to the legal system in the US we allow those sentenced to death to exhaust all legal appeal options before the execution. This means many more days in court than the LWOP (roughly 5-6 times as many court appearances).

A quick googling shows some stats (some with deeper links to actual studies):
http://www.deathpenaltyinfo.org/costs-death-penalty
http://www.deathpenalty.org/article.php?id=42
http://deathpenalty.procon.org/view.answers.php?questionID=001000

Comment Just overwrite the data once completely using dd (Score 1) 527

There is at least one outstanding challenge on the internet to recover a drive that has been overwritten just once with zeros. No one has accepted this challenge in over a year. Beyond that we now know that the assumptions that Peter Gutmann made when writing his seminal works in the mid-nineties about data recovery are complete hogwash. Once such assumption is that you know what data it is that you would like to recover. Why would you need to recover the data then if you have perfect knowledge of the data.

A new paper was published in December showing experimental data to back up how possible/impossible it is to recover data from a drive that has been overwritten once with any known pattern. They show that if you try to recover data from overwritten areas your likely hood of data recovery become astronomically low once you start trying to recover more than 32 bits of contiguous data. Add to that the time required to attempt the recovery. With Magnetic Force Microscopy (MFM) you can scan a disk platter at a speed of 1 byte every 4 minutes. This speed will change over time, but based on the research in this paper that still makes anything more than bit recovery unlikely and would be a huge time sink for anyone with appropriate technology and would most likely yield little useful information.

I recommend anyone in that deals with hard drive decommissioning read this paper.

Here's the link to the paper.

And here's a link to the BibTex entry.

Music

Copyright Cutback Proposed As RIAA Solution 709

An anonymous reader writes "InfoWeek blogger Alex Wolfe proposes a novel solution to the ongoing spate of RIAA lawsuits over alleged music copying. He suggests legislation which cuts back corporate copyrights from 120 years to 5 years. 'We should do what we do to children who misbehave,' he writes. 'Take away their privileges.' Wolfe says this is regardless of the misunderstanding surrounding the latest case, which apparently isn't about ripping CDs to one's own computer. As to those who say copyrights are a right: "That's simply a misunderstanding of their purpose. Copyrights, like patents, weren't implemented to protect their owners in perpetuity. They are part of a dance which attempts to balance off societal benefits against incentives for writers and inventors. You want to incentivize people to push the state of the creative and technical arts, but you don't want give those folks such overbearing protections that future advances by other innovators are stifled." What do you think; is it time to cut off the record industry?"
Real Time Strategy (Games)

Submission + - Dreams Are Virtual Reality Threat Simulation

Time Slows Down writes: "Psychology Today has an interesting story on a new theory of why we dream. Finnish psychologist Antti Revonsuo believes that dreams are a sort of nighttime theater in which our brains screen realistic scenarios simulating emergency situations and providing an arena for safe training. "The primary function of negative dreams is rehearsal for similar real events, so that threat recognition and avoidance happens faster and more automatically in comparable real situations," he says. We have 300 to 1,000 threat dreams per year — one to four per night and just under half are aggressive encounters: physical aggression such as fistfights, and nonphysical aggression such as verbal arguments. Faced with actual life-or-death situations — traffic accidents, terrorist attacks, street assaults — people report entering a mode of calm, rapid response, reacting automatically, almost without thinking. Afterward, they often say the episode felt unreal, as if it were all a dream. "Dreaming is a sensitive system that tries to pay much attention to the threatening cues in our environment," Revonsuo says. "Their function is to protect and prepare us.""
Privacy

Submission + - Will security firms detect police spyware? (com.com)

cnet-declan writes: "A recent appeals court case dealt with Drug Enforcement Administration agents using a key logger to investigate a suspect using PGP and Hushmail. That invites the obvious question: Will security companies ever intentionally overlook police spyware? There were somewhat-muddled reports in 2001 that Symantec and McAfee would do just that, so over at News.com we figured we'd do a survey of the top 13 security firms. We asked them three questions, including if it is their policy to detect policeware, and our article reporting the results is here. Notably, Check Point said it would "afford law enforcement" the courtesy of whitelisting if requested. We've also posted the full results, with their complete answers. Another question we asked is if they received a court order requiring them to overlook police key loggers or spyware. Symantec, IBM, Kaspersky, and others said no. Only Microsoft and McAfee refused to answer."
Education

Submission + - Gates Changes H.S. Horses in Midstream

theodp writes: "A week ago, in his How to Keep America Competitive Op-Ed, Bill Gates touted the Gates Foundation-backed High Tech High as the future of American education. One small problem. Two days earlier, tearful High Tech High Bayarea students — recruited by a Bill Gates video — were told that their school of the future had no future. So would Bill be too embarrassed to lay out his education plan before the Senate Wednesday? Nah. Not too surprisingly though, mentions of High Tech High were MIA in Bill's prepared remarks, which touted Philly's imaginatively named $65M School of the Future, built under the guidance of Microsoft, as the new school of the future. Committee politicians reportedly embraced virtually all of the suggestions made by Gates."

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