Sanjeev Singh

"Many networks of interest in the sciences, including social networks, computer networks, and metabolic and regulatory networks, are found to divide naturally into communities or modules. The problem of detecting and characterizing this community structure is one of the outstanding issues in the study of networked systems. One highly effective approach is the optimization of the quality function known as “modularity” over the possible divisions of a network. Here I show that the modularity can be expressed in terms of the eigenvectors of a characteristic matrix for the network, which I call the modularity matrix, and that this expression leads to a spectral algorithm for community detection that returns results of demonstrably higher quality than competing methods in shorter running times. I illustrate the method with applications to several published network data sets." - Sanjeev Singh

ha ha thanks Aviv! - Sanjeev Singh

Friendfeeding just for the pic. - Sanjeev Singh

Everyone talks about bringing change to Washington, but it turns out D.C has the highest "openness to new ideas" score in the entire country. What gives? [my personal theory is that the problem isn't the people, but the power structures and procedures of gov't] - Sanjeev Singh

Love the explosion of yellow when day breaks. - Benjamin Golub

It's like watching tides of money. - Seth

Amazing!!! - Ray(http://sangu.me)

If you click on the link (instead of playing inline), you can select the high quality version of this video. - Sanjeev Singh

Ana is pretty good with bubbles :) - Sanjeev Singh

why has it been dogging you? - eviltom

Did anyone at Caltech go to this talk? It doesn't appear to be on youtube. - Sanjeev Singh

"A century ago, Lim writes, presidential speeches were pitched at a college reading level; today, they’re down to eighth grade, and if the trend continues, next century’s State of the Union addresses will be conducted at the level of “a comic strip or a fifth-grade textbook.” (“Iran’s crawling with bad guys: BAP!”) Since 1913, the length of the average presidential sentence has fallen from 35 words to 22. Between Nixon and the second Bush, the average presidential sound bite shrank from 42 seconds to 7. Today’s State of the Unions inspire roughly 30 seconds of applause for every 60 seconds of speech" - Sanjeev Singh

I was listening to King's "I have a dream" speech over the weekend and was amazed by the verbosity of it. People these days will tune of those delicately worded, but complex sentences. I wonder if part of the reason for the dumbening (heh!) is that speeches these days are aimed at wider audiences. - Thaths

"When you've just been decelerating at 200 g's for 1.5 msec, you've excited every vibration mode that the actuator knows about. The whole thing wants to ring like a bell. And despite the attempts of us mechanical men to make everything stiff, it's in the nature of metals to ring!" - Sanjeev Singh

A very interesting article on hard disk design that I will read fully some day. :) - Sanjeev Singh

The interactive graphs are really nice http://www.gapminder.org/world... - Sanjeev Singh

"On average, there was an 85 percent increase in the amount of free radicals for all the subjects in the study. Free radicals have been linked to a variety of diseases in humans including cancer," said Agarwal. Free radicals have been linked to decreased sperm quality in previous studies." - Sanjeev Singh

jeev, but i don't want risk getting testicular cancer, cos there is a study that suspect prolong use of phone causes cancer "According to a study by the Swedish National Institute for Working Life, heavy cellphone users face an increased risk, especially on the side of the head where the phone is held" - Lim, Kok Kim

"Will the inevitable economic rise of China and India mean that these dynamic markets will produce outsized returns for those brave enough to brave their markets? A very good question, but I’m betting no. Remember, equity prices are based on per-share metrics, and in nations with inadequate shareholder protection, outstanding equity gets diluted faster than iced tea on a hot day. Despite China’s ten percent annual economic growth and the recent torrid performance of its stock market, its real long-term returns over the past fifteen years have been negative. (And forget Russia: its ascent is linked directly to the buoyancy of the commodities markets. Not only is this unlikely to persist, but natural resources are a well-known developmental curse.)" - Sanjeev Singh

"Conclusion: The debt markets are so out of whack that we are now at a point where credit risk is being rewarded more than equity risk, something that should never happen in a world where equity investors own only the residual rights to earnings. This cannot last for very long: either spreads will tighten rapidly, equity prices will fall rapidly, or both. (Or, chortle, earnings will grow more rapidly.)" - Sanjeev Singh

However, it's clear that CO2 has bad effects other than warming (like depleting Ozone) that are well understood, easily measurable and non-controversial. - Sanjeev Singh

in case it's not clear I'm just paraphrashing Dyson in my previous comments. He makes a good case. - Sanjeev Singh

"When the EPA wants to set a pesticide standard, they have companies test the pesticide in rodents and measure what’s called the no observed effect level—the NOEL—which becomes the threshold. To extrapolate from rats to humans, they divide that NOEL by 100. But 100 wasn’t good enough to protect kids, so they had to divide it by 1,000. But in the mid-’90s, after the passage of the Food Quality Protection Act, the pesticide industry found a way around that: Instead of testing pesticides in rodents, they began testing them in humans—usually very poor people. For 15 years they have been paying these so-called volunteers a couple of thousand dollars to swallow the pesticide and see what happens. Then they just divide the figure where damage is first observed, the NOEL, by 100. And the EPA has been accepting these data over the protests of a lot of people, turning a blind eye to the third tenfold safety factor for children and not enforcing the law." - Sanjeev Singh

"When the towers collapsed, 2 million tons of dust containing concrete, asbestos, glass, lead, and carcinogens rained down on Lower Manhattan. Yet less than a week later, the EPA said it was safe to work there and breathe the air. What is your perspective on this? [EPA director] Christine Todd Whitman’s statement that the air in Manhattan was safe to breathe was stupid and ill considered because she was making a very strong assertion with almost no data ...... We realized only later that concentrations of dust in the air were so high that they overwhelmed all the normal defenses of the human respiratory tract, and people inhaled ounces of dust into their trachea or their bronchi." - Sanjeev Singh

Chomsky had it right all along. - Sanjeev Singh

only 7 mins, unlike my previous marathon youtube favs. - Sanjeev Singh

"raw muktuk can serve up an impressive 36 milligrams in a 100-gram piece" according to http://discovermagazine.com/2004.... Lemons have 40mg of vitamin C per 100g according to http://en.wikipedia.org/wiki... which isn't quite consistent, but the numbers are close. The table on the wikipedia page is pretty interesting. - Laurence Gonsalves

before anybody decide to munch on muktuk, ought to take a look at this first, "Traditionally thought of as the last great unspoiled territory on Earth, the Arctic is in reality home to some of the most contaminated people and animals on the planet." http://books.google.com/books... - Lim, Kok Kim

Wow, a press release with citations! Apparently resveratrol can be bad for you in large doses. caveats: http://friendfeed.com/e... - Sanjeev Singh

Surprisingly, their new product fixes this problem and makes you live longer :) - Paul Buchheit

"In this study, calorie restriction significantly differentiated (up or down-regulated) 198 genes, and resveratrol, its molecular mimic, significantly influenced 225 genes, while resveratrol-based matrix (Longevinex®) significantly differentiated 1711 genes." <sarcasm>Of course, the more genes it differentiates, the better! After all, we know so much about how the genetic regulatory network functions.</sarcasm> - Ruchira S. Datta

Looks like eating fruits 30-60mins before a meal high in starches (potatoes, rice, bread, etc.) reduces glycemic load by ~25%. - Sanjeev Singh

It's funny to see him talking about global warming and how we're turning the Earth into a cinder while smoking a cigarette. - Sanjeev Singh

referring to global warming, turning earth into a cinder.. just one "we're consuming mass quantities" quote would have been gold - David Vasileff

Big earthquakes are sometimes preceded by aurora-like light shows in the sky. This video shows lights in the sky before the Sichuan Earthquake: http://www.youtube.com/watch... - Sanjeev Singh

" The 1989 Loma Prieta earthquake near San Francisco sent out strong signals of magnetic disturbances fully two weeks before the 7.1-magnitude quake occurred. The idea that such signals existed was still a new one then, certainly not well enough accepted to justify a decision to issue a public warning. We happen to have excellent data from that quake. Stanford professor Anthony C. Fraser-Smith had buried a device called a single-axis search-coil magnetometer to monitor the natural background ULF magnetic-field strength at about 7 km from what turned out to be the center of that quake. He selected this spot simply because it was in a quiet area, away from the rumblings of the Bay Area Rapid Transit trains and other man-made ULF noise. He monitored a range of frequencies from 0.01 to 10 Hz, essentially, the ULF band and the lower part of the ELF band. On 3 October, two weeks before the quake, Fraser-Smith's sensors registered a huge jump in the ULF magnetic field at the 0.01-Hz frequency—about 20 times that - Sanjeev Singh

...of normal background noise at that frequency. Three hours before the quake, the 0.01-Hz signal jumped to 60 times normal. Elevated ULF signals continued for several months after the quake, a period rife with aftershocks, and then they disappeared. " - Sanjeev Singh

"Taxes aimed at commercial trucks mean diesel costs anywhere from 40 cents to $1 more per gallon than gasoline". I always wondered why diesel was so expensive here. - Sanjeev Singh

A 4 acre farm in the heart of SF. Looks like a cool place to visit. - Sanjeev Singh

interesting, though its not the most peaceful farm as far as sound goes - bob

The best of the three parts. Of course, it's really hard to tell whether or not Bob is making the stuff up. His wife is a "consultant" who helps business owners position themselves for 2012, so there's a vested interest here. For those who don't know, there is a movement that believes 2012 marks the beginning of a new era, with the potential for great calamity on Earth (4B people die, etc.). - Sanjeev Singh

Bob Dean talks about a classified report on UFOs conducted by NATO in the 1960s -- NATO HQ never got good answers from Washington about UFOs, because an extensive French spy ring at the time meant anything sent to NATO HQ also went to the Russians, so they were forced to commission European scientists to do a study. - Sanjeev Singh

Does anyone know if "Green Border" renders this harmless? Other than crashing a tab. - Sanjeev Singh

In case it's not clear this is a crashing vulnerability in chrome. - Sanjeev Singh

"... the organisms were assembled in fractal patterns from frond-like building blocks. They were unable to move and had no reproductive organs, perhaps reproducing by dropping off new fronds. The creatures, which were neither animals or plants, are called rangeomorphs." - Sanjeev Singh

"They accounted for over 80% of fossils early in the Ediacara period, when there were no mobile animals or traces of burrows. But they declined as more mobile animals evolved, apparently unable to compete, or perhaps being eaten themselves." - Sanjeev Singh

I get ~4900, FF 3.0.1, OS X 10.4 - Sanjeev Singh

10187 Safari 4, WebKit nightly, 4x3 macpro - Sam Pullara

:) - Sanjeev Singh

Probably my greatest regret in Beijing was opting to go home early one night instead of staying out w/ my friends at a bar where they later met up and spent the rest of the night hanging out w/ Usain Bolt. I just assumed he'd be sort of pompous, but my friends swear that he was a really nice and cool guy. - Ana

Ana, remind me if we're ever hanging out and a decision has to be made about interacting with a celebrity (like talking to the real Dwyane Wade or hanging with Usain Bolt), to not listen to you. - Dan Hsiao

Gary McKinnon, "most wanted hacker" on how he hacked the pentagon, NASA, etc, and what he found out. (1) He never had to "hack" these machines, they had blank Administrator passwords. (2) There were a ton of other (presumably unauthorized) hackers on these machines (3) NASA regularly airbrushes UFOs out of pictures. (4) He saw an excel spreadsheet of 20-30 "non-terrestrial officers" but it's not clear what that term means. - Sanjeev Singh

omg omg we're doomed! :) - AJ Batac

I will express my thoughts about the video, since no one else will. :) It seems difficult to dismiss the objects here as naturally occurring phenomena or as human artifacts. I am intensely curious about this video (and many others like it coming from Mexico and other nations). I want to know more. We don't know that these objects are ET vehicles, but they might be -- I don't automatically dismiss the possibility. I agree with the former defense ministers of Britain and Canada: this subject deserves intense investigation and scrutiny. - Sean McBride