Building better personalized search, filtering spam blogs

November 30th, 2005 4:30pm

Batelle’s Searchblog mentions an article by Raul Valdes-Perez of Vivisimo citing 5 reasons why search personalization won’t work very well. Paraphrasing his list:

  1. Individual users interests / search intent changes over time
  2. The click and viewing data available to do the personalization is limited
  3. Inferring user intent from pages viewed after search can be misleading because the click is driven by a snippet in search results, not the whole page
  4. Computers are often shared among multiple users with varying intent
  5. Queries are too short to accurately infer intent

Vivismo (Clusty) is taking an approach in which groups of search results are clustered together and presented to the user for further exploration. The idea is to allow the user to explicitly direct the search towards results which they find relevant, and I have found it can work quite well for uncovering groups of search results that I might otherwise overlook.

links for 2005-11-30

November 30th, 2005 12:17am
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To unplug the cable, or not to unplug the cable, that is the question

November 29th, 2005 8:30pm

no-cable-tv
Comcast just announced that they’re raising their monthly fee by around 7% starting in January:

The package price will rise by an average of $3.13 per month, or about $44.80 to $47.93. Prices vary depending on the community.

I already pay $49.61 per month (with tax) here in Palo Alto, so the new rate will be around $53 per month. The old rate seems too high for what little we watch in our household, and the new rate is worse.

“Comcast’s Bay Area market prices reflect increasing operating expenses,'’ said spokesman Andrew Johnson, “as well as investments that Comcast is making to improve the value of the service.'’ He cited improvements in customer service as well as more programming choices that have come through advances in technology and partnerships with new programming providers.

links for 2005-11-29

November 29th, 2005 12:18am
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links for 2005-11-28

November 28th, 2005 12:17am
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Stanford Stadium

November 27th, 2005 3:38pm
IMG_4046 IMG_4047

They started tearing down Stanford Stadium after the football game this weekend. The replacement can’t help but be a nicer facility, but it won’t have a track any more.
Links:

links for 2005-11-27

November 27th, 2005 12:17am
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StarSight - Solar powered street lamps with wireless access points

November 26th, 2005 3:15pm

solar lamppost
This project seems like it could be a good fit for developing but urban settings where there is fairly high population density, a budget for deploying infrastructure, and enough community support to limit problems with vandalism or theft of the equipment.

Starsight (Starsightproject.com) is a project designed to supercharge street lighting and power in developing counties. Essentially it is a network of pylons, each with a solar panel, linked not by cables but by antennae which use wireless internet protocol.

The Starsight idea came out of the involvement of London-based sustainable development specialist the Kolam Partnership in an urban street lighting initiative in Cameroon.

Reliable street lighting can help a country to develop – a study by the Kenyan government recently found that street lighting reduced crime by 65 per cent. The benefits are even more widespread – aid workers and foreign businesses are more likely to stay on in a country if they feel secure.

links for 2005-11-26

November 26th, 2005 12:17am
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Spammers want donations for better hosting?

November 25th, 2005 5:29pm

I haven’t noticed getting one of these in my e-mail before:

Becouse of a lot of complaints about our malings
we need to buy expensive balk bullet-prof hosting
for our sites. It costs a lot, please, send us
small donation to:

Nordea Bank AB, Sweden, Surte, SWIFT: NDEASESS
to Isa Dzhabrailov, account number: SE 163 000000000 6510032599


I guess they don’t take Paypal…

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Local Tag Cosmos

November 25th, 2005 11:40am

tag cosmos
I’ve added a local tag cosmos, which shows a tag cloud for posts on this site. Unfortunately, I’m also using tags and bookmarks scattered across del.icio.us, Flickr, Technorati, and other services, which aren’t integrated into the cloud, but this provides a different view of what’s been posted here since I’ve started tagging things.

I’m still evolving my personal use of tags. You can see that I’ve started tagging some posts with “web2.0“, although I’ve been reluctant to turn it into a site category. I don’t like the label, but I recognize that it’s the most popular tag for a lot of “new” stuff at the moment. So exposing the tag makes it more findable.

links for 2005-11-25

November 25th, 2005 12:17am
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Thanksgiving cooking plan

November 24th, 2005 10:02am

mr. bean's turkey
Unlike Mr. Bean , turkey preparation is going smoothly at our house this morning. I’ve been making Thanksgiving meals nearly every year since coming out to California as a grad student. A Thanksgiving feast can be fairly simple to put together, primarily requiring planning and organization skills, as opposed to creative seasoning skills. Once the bird’s in the oven, there isn’t much to do for a few hours, leaving time to hang out, get in a good run, or catch up on feed reading while looking at the parade on television.

The hardest trick is getting everything to come out at the same time, since the bird has a somewhat variable 4-5 hour lead time on it, and there’s a limited supply of stove burners and pans for cooking the vegetables and side dishes during the last hour. We normally have salad, along with corn, peas, yams, potatoes, stuffing, cranberry sauce, and the traditional Thanksgiving kimchee (highly recommended, even if you aren’t Korean). Plus pumpkin and French apple pies for dessert.

links for 2005-11-24

November 24th, 2005 12:18am
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Thanksgiving list of thankfulness

November 24th, 2005 12:15am

emilys-top-5-thankful-2005
I asked Emily to think about what she’s thankful for this year, here’s the list she came up with this afternoon:

  1. A loving family
  2. A warm house
  3. Delicious food
  4. Life in people
  5. My precious belongings

My list started out a lot more complicated, but I think I’ll go with hers.

links for 2005-11-23

November 23rd, 2005 12:17am
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Sure sign of a boomlet underway…

November 22nd, 2005 10:53pm

…the business and technology magazines are getting thicker again. The latest issue of Wired magazine is 294 pages, Forbes is 280. Not in the phonebook-sized range yet, but noticeably heavier than they’ve been in a while.

Apparently, Adsense hasn’t sucked up all the advertising money. Plus there’s no way to put cardboard inserts and perfume samples onto a web page yet.

Update 12-03-2005 19:15 PST: This guy plotted Wired page counts vs the Nasdaq index, and some similar comments here as well.

Refocusing digital photos after the fact

November 22nd, 2005 6:51pm

digital refocusing
I dropped my subscription to the ACM Graphics SIG some time back, so this is the first I’ve heard of this project, which is very cool. Take your photos now, and decide what to focus on later.

From Wired News, via A Venture Forth:

A computer science Ph.D. student at Stanford University has outfitted a 16-megapixel camera with a bevy of micro lenses that allows users to take photos and later refocus them on a computer using software he wrote.

The system works by capturing information about the direction of the incoming light, as well as the intensity. This is then used to compute the image that would have been formed if the sensor was in a slightly different plane, effectively changing the focal length. The paper published by Ren Ng and team observes:

A treadmill in your hotel room?

November 22nd, 2005 1:15pm

Today’s Wall Street Journal mentions that some hotels are offering to place exercise equipment in your room. For $20, the Westin will provide a treadmill or stationary bike, and several others will provide yoga mats and DVDs.

I’d be interested to hear if anyone has first hand experience with this. On the one hand, it might save a few minutes finding / getting in and out of the gym, as well as fixing the problem of gym hours not lining up with when you’re actually at the hotel during business travel. I routinely find that the published hours don’t reflect reality, although I can usually get someone to open the gym if it’s a real hotel (i.e. well equipped but overpriced).

Public domain Soviet maps of the world

November 22nd, 2005 1:01pm

During the initial planning and survey phase of the Kuppam project a few years ago, I discovered it was nearly impossible to obtain high resolution topographic maps (or any other sort) for rural India. The government-operated Survey of India has high quality data, but it hasn’t generally made its way into the equivalent of US Geological Survey 15-minute quadrangles on paper or the DTM / DEM data sets. The best I was able to come up with was some old Soviet military maps from the 1950s.

Hadn’t thought about it for a while, but I see someone else has found out about these:

Paul sez, “Soviets mapped the entire world at various scales between 1940 and 1990.In some areas the Russian maps are still the best available maps. Amazingly, none of the maps are copyright.

BoingBoing, Soviet Military Maps of Britain

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