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Thursday, January 9, 2003
 


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[Jon Schull's Weblog]
comments? [] 8:26:34 PM    

Evolution Visualized (GrowthGraph View)


Yesterday, I reposted some golden oldy info visualizations. (Stephen Dulaney comments (and mis-spells my name))

Ironically I failed to find the most relevant one, the following from the Meatball Wiki.  Even more ironic, the way I found it was exploring the my Radio Referrers page.  Someone else apparently found their way from there to my weblog.  Its been noted by others before, but there is something deep going on when the collective intelligence about your history is more easily accessible than your own.  (Of course, that's also a description of senility....hmmmm.)

GrowthGraphView

MeatballWiki | RecentChanges | Preferences | Indices | Categories


Knowledge grows and proliferates organically. I'm interested in visualizing the process (see MacroScope and http://c2.com/cgi/wiki?VisualizeTheWiki for variations on this theme).

Wikis are great model systems for this project: One page spawns several; these spawn more; and so on. I want to visualize the growth as well as the structure of these knowledge trees, both as an animation and as a static structure.

(Picture a time-lapse movie of the growth of a real tree (an oak say): that's the animation. Now picture the grown tree: that's the static structure. And note--even in the static structure, the thickness of the branches and the topology of the limbs gives us strong indications of the tree's historical processes of growth. That big fork clearly happened decades ago. This cluster of twigs is a recent development. etc.)

Now wikis (and knowledge trees) cross-link in way that oak trees do not (although banyan trees and mangroves do). I want to visualize that too. So I'd like to scale the size of each node by the number of visitors it gets. And I"d like to thicken each edge in proportion to the number of visitors who traverse it. The goal is for major "roads, highways, and destinations" to loom large the way they do on maps and in real life, and for minor arteries and pages to be smaller (and take up less real estate). "Ancestral links" would be distinguished from "foster links"

SunirShah , or CliffordAdams , what would it take to be able to get a data dump that pulls these linkage and usage statistics together? We'd need some historical information about revisions (available, I know) and about a new pages "parent" (i.e., the page from which it was spawned.

The data we need for this would be (roughly) time-stamped event records of...

  • When a page is born, log its "parent" (the page that introduced the newborn's WikiName).
  • When an existing page acquires a step-parent (an additional link,) log that event.
  • When a page is edited, log that event
  • When a visitor surfs from one page to another, log the identity of the two pages

  • It would also be nice to have a unique identifier for the human (or ID or IP address) responsible for instigating the event ("rainmakers"?)

In the absence of those historical data, here's something I was able to do from the LinkDatabase

(Detail at http://radio.weblogs.com/0104369/stories/2002/05/02/aboutWikidot4cpy.html )


Contributors: JonSchull


To the question specifically addressed at me, what it would take is more time spent coding and less time spent watching hockey games. I've got lots of coding to do, but I don't want to do anything complicated until UseModWiki 1.0 is done. (Isn't it nice when your GodKing can hack the "universe" for you?) -- SunirShah


MeatballWiki | RecentChanges | Preferences | Indices | Categories
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comments? [] 11:53:38 AM    


Bringing Broadband to the Masses.

Broadband ISPs Mull Healing Power of Price Cuts

"Cutting prices for high-speed Internet service may not be the greatest thing for cable operators. But it won't kill them, either.

That's a lesson to learn from cable operators that are already offering high-speed Internet packages at prices about one-half (or even lower) of the $50 monthly fee that has become standard among the nation's biggest cable TV companies, including Comcast and Cox Communications.

Over the past year, marketing high-speed Internet connections, or broadband, has been a boon for cable operators, enabling them to reap high-margin revenue from cable systems into which they've poured billions of dollars in capital expenditures.

But, as TheStreet.com explored in an article last month, some analysts say growth in broadband will peter out in 2003 unless operators start offering lower-priced service packages, or tiers. That scenario has led at least one sell-side analyst to cut growth estimates for cable data and, in turn, equity values.

The situation could pose a difficult question for system operators. Do they hold the line on rate cuts and risk stalled subscriber growth? Or do they introduce lower-cost tiers and risk margins shrunk by consumers who downgrade their service?

The choice is difficult, but some of the few companies already selling lower-priced cable tiers say the benefits more than offset the risks....

One small operator that says it has achieved greater penetration through a budget-price tier is Massillon Cable Communications, a privately held company serving 45,000 households in Ohio. Massillon, which launched high-speed Internet service in 1999, now has 11,000 broadband customers, mostly residential. That amounts to about 24.4% of basic cable subscribers. That's a number that puts Massillon in the same league as larger operators....

Similarly supportive of lower-priced tiers is Michael Zammit, managing director of Advanced Broadband, a subsidiary of luxury homebuilder Toll Brothers that currently markets broadband to 1,600 homes in several gated communities. In communities where 128 kbps cable modem service goes free to every household, about a third pay extra for upgraded service. Of those upgraders, one-third pay $15 a month for 768 kbps download rates and two-thirds pay $25 for 1.5-megabit-per-second downloading.

In communities with no free broadband, Zammit says, about 25% pay for the service. Advanced Broadband charges them $25 a month for entry-level 128 kbps service and $40 for 1.5 mbps service. Again, two-thirds of upgrading customers opt for the more expensive tier.

Though Zammit's customers clearly demand broadband, he says selling high-speed Internet in the mass market is harder. 'That makes it all the more important to have a more attractive and less expensive entry point for less techno-savvy users,' he says.

'The bottom-line message is, we're capturing 50% more subscribers because that tier is there,' Zammit says. 'Those people would not have taken broadband Internet if we didn't have a lower price point....'

Butt downplays the problem of lower tiers cannibalizing higher tiers, saying that the low-priced tier tempts dial-up users to try broadband. "If you offer them a price point that's comparable to dial-up, you get more people to trade up,' he says." [TheStreet.com]

Exactly.

[The Shifted Librarian]
comments? [] 11:29:33 AM    


Trepia

"Trepiaô is a revolutionary networking application that lets you instantly meet other Wi-Fi users in your vicinity.

Using patent-pending technology, Trepiaô discovers other Wi-Fi users in your area by analyzing base-station access patterns.

Other users will simply appear on your contact list, allowing you to communicate with them. Seek out new people and make connections easily: Trepiaô makes you part of an instant community where ever you go." [via DotBlog]

Could be interesting for gaming, and it should do well on campuses (as noted by Richard).

[The Shifted Librarian]
comments? [] 11:24:32 AM    


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The Wireless Commons Manifesto


The Wireless Commons Manifesto

We have formed the Wireless Commons because a global wireless network is within our grasp. We will work to define and achieve a wireless commons built using open spectrum, and able to connect people everywhere. We believe there is value to an independent and global network which is open to the public. We will break down commercial, technical, social and political barriers to the commons. The wireless commons bridges one of the few remaining gaps in universal communication without interference from middlemen and meddlers....


comments? [] 10:52:17 AM    

Element Tree


Element Tree  (Python) http://effbot.org/zone/element-index.htm

The Element type is a simple but flexible container object, designed to store hierarchical data structures, such as simplified XML infosets, in memory. The element type can be described as a cross between a Python list and a dictionary.

Each Element instance can have an identifying tag, any number of attributes, any number of child element instances, and an associated object (usually a string).

from elementtree import Element, SubElement

root = Element("html")

head = SubElement(root, "head")

title = SubElement(head, "title")
title.text = "Page Title"

body = SubElement(root, "body")
body.set("bgcolor", "#ffffff")


comments? [] 10:47:28 AM    


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