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The Wealth of Networks, by Tom Vest |
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| Topic: Technology |
5:04 pm EDT, Apr 2, 2006 |
This book is not related to Benkler's book of the same name. An empirical exploration of the nature and causes of global Internet development from November 1997 to the present, based on an operationally informed, natural language interpretation of the Internet routing table.
This site is still coming online. Check out the briefing, "The Wealth of Networks: An Old Formula for Understanding the New Global Information Economy." The Wealth of Networks, by Tom Vest |
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Packet dispersion techniques and capacity estimation |
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| Topic: Technology |
5:04 pm EDT, Apr 2, 2006 |
The packet pair technique aims to estimate the capacity of a path (bottleneck bandwidth) from the dispersion of two equal-sized probing packets sent back-to-back. It has also been argued that the dispersion of longer packet bursts (packet trains) can estimate the available bandwidth of a path. This paper examines such packet pair and packet train dispersion techniques in depth. First we demonstrate that, in general, packet pair bandwidth measurements follow a multimodal distribution, and explain the causes of multiple local modes. The path capacity is a local mode, often different than the global mode of this distribution. We illustrate the effects of network load, cross traffic packet size variability, and probing packet size on the bandwidth distribution of packet pairs. We then switch to the dispersion of long packet trains. The mean of the packet train dispersion distribution corresponds to a bandwidth metric that we refer to as Average Dispersion Rate (ADR). We show that the ADR is a lower bound of the capacity and an upper bound of the available bandwidth of a path. Putting all pieces together, we present a capacity estimation methodology that has been implemented in a tool called pathrate. We report on our experiences with pathrate after having measured hundreds of Internet paths over the last three years.
Packet dispersion techniques and capacity estimation |
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| Topic: Current Events |
11:23 am EDT, Apr 2, 2006 |
This season, the protests aren't in far-off housing projects, but right under our eyes. The Sorbonne, symbolic center of the intelligentsia, has been sealed off by the police.
French Twist |
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| Topic: Health and Wellness |
11:23 am EDT, Apr 2, 2006 |
"When I moved here after college," she added, "I didn't realize that along with rent, phone and utilities, I'd have this huge expense for hair."
Golden Girls |
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Internet Injects Sweeping Change Into U.S. Politics |
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| Topic: Society |
11:22 am EDT, Apr 2, 2006 |
The transformation of American politics by the Internet is accelerating with the approach of the 2006 Congressional and 2008 White House elections, prompting the rewriting of rules on advertising, fund-raising, mobilizing supporters and even the spreading of negative information.
Update: Micah Sifry found this article wanting. He writes: I'm putting my money on the real shift, which is the movement of power away from the center and top and to the edges and the bottom. A harder story to report, for sure, and one that the consultants in DC are by definition ill-disposed to understand. But that's the big story, and it's coming.
Internet Injects Sweeping Change Into U.S. Politics |
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Composing Music Using Apple Computer's GarageBand Software |
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| Topic: Arts |
11:22 am EDT, Apr 2, 2006 |
I'm not a musician, but I recently composed and recorded a song. More than that, in a Paul McCartneyesque fit of post-Beatles hubris, I played all the instruments and produced and engineered the entire thing, even though I have no experience producing and engineering anything more complicated than a Bombay martini.
Composing Music Using Apple Computer's GarageBand Software |
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News Corp. (hearts) MySpace | FORTUNE |
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| Topic: Business |
11:22 am EDT, Apr 2, 2006 |
The News Corp.'s purchase of MySpace is looking like that rarest of rarities in the media world -- a much-ballyhooed acquisition where it turns out that the buyer underpaid.
News Corp. (hearts) MySpace | FORTUNE |
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Best Buy's giant gamble | FORTUNE |
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| Topic: Business |
11:22 am EDT, Apr 2, 2006 |
In short, here's how it works: Figure out which customers make you the most money, segment them carefully, then realign your stores and empower employees to target those favored shoppers with products and services that will encourage them to spend more and come back often.
Best Buy's giant gamble | FORTUNE |
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| Topic: Science |
11:21 am EDT, Apr 2, 2006 |
Humans are aware, and we are aware that we're aware. But scientists still don't understand why.
The consciousness puzzle |
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