At 04:30 PM 2/14/2006, Jeff Spaleta wrote:
I'm suggesting that there is very little to be learned from the specific comparison to google. I'm saying that since we are incapable of examining the details of how google search works, there is very little to be gleamed from looking at example output from google at all. The magic in the google search is the search algorithm which produces the results. And its exactly that piece of magic which we don't have access to to examine and reuse. Are you really suggesting that we blindly reverse-engineer the google search algorithm and apply it to bugzilla?
The magic of Google isn't in the ranking algorithm, it's in the kind and quantity of data that it searches over and the expectations people have of it.
The problems of information retrieval depend on the scale of your database. Historically, people have evaluated IR systems based on two things: precision and recall.
If you've got a database with 10,000 items, and there is 1 item that matches, there's a lot of risk that that 1 item will be lost if someone doesn't type in the perfect search term. Recall is the issue, so it's important to stem words (working -> work), have a system that's smart about synonyms, etc.
Now, if you're searching a database with 10 billion items, there will be 1 million hits for a 1:10000 item. The issue is picking out the best items out of that million items, so there's more stress on precise phrase matching, things like pagerank. Antispam measures are essential, and so is the removal of duplicate documents.
Google's trying to do something entirely different from what bugzilla search is trying to do or, say, beagle should do on your desktop.
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