839 karma · joined March 9, 2009
"In statistics, particularly in the design of sequential experiments, a multi-armed bandit takes its name from a traditional slot machine (one-armed bandit). Multiple levers are considered in the motivating applications in statistics. When pulled, each lever provides a reward drawn from a distribution associated with that specific lever. The objective of the gambler is to maximize the sum of rewards earned through a sequence of lever pulls.
In practice, multi-armed bandits have been used to model the problem of managing research projects in a large organization, like a science foundation or a pharmaceutical company. Given its fixed budget, the problem is to allocate resources among the competing projects, whose properties are only partially known now but may be better understood as time passes.
In the early versions of the multi-armed bandit problem, the gambler has no initial knowledge about the levers. The crucial tradeoff the gambler faces at each trial is between "exploitation" of the lever that has the highest expected payoff and "exploration" to get more information about the expected payoffs of the other levers."
http://www.charitynavigator.org/index.cfm?bay=search.summary...
I see what you did there.
I have been a Rdio subscriber for about 3 months now, and I really only have two complaints. The first is that when I'm listening to Rdio at work (which is where I use the service most often) the stream tends to hang up and/or "stutter", to the point that I eventually get frustrated and turn it off. Now, we have pretty decent bandwidth at work, and other similar services (e.g. Pandora) don't seem to suffer from this problem, so I'm not sure what Rdio's problem is.
The other problem I've observed with Rdio is that a noticeable amount of time passes between the time I press "play" and the music actually starts. This one's not such a big problem, but it is a problem.
So, I've just signed up for a Spotify Unlimited plan and I'm going to see how it stacks up, especially with regards to the aforementioned problems. If it seems to perform more consistently than Rdio has, I'll probably switch.
"What differs from other JavaScript Frameworks ?
Joshfire share the same will of easing Web Application development by introducing template engines, MVC coding style, magic UI binding to data and so on. However, until now, each framework had its own supported platforms: mobile webkit for some, recent desktop browsers for the others. Joshfire targets platforms ranging from IE6 to mobile devices, connected televisions and even headless devices."
and the slide deck is here:
https://docs.google.com/present/view?id=dcbpz3ck_24f3v83ggz&...