HNHacker News
TopNewBestAskShowJobs

cavedave

895 karma · joined June 14, 2010

submissionscomments
cavedave··on Prediction and Entropy of Printed English (1950) [pdf]
That's weird I was just sharing this today with reference to LLMs.

Btw Shannon also invented wearable computers. He did it to cheat at roulette.

cavedave··on A Kaggle for Materials?
This is an idea I had for ages. But no one seems to have made it yet. So I am probably missing something.

If you can point out why this wouldn't work. Or what materials/quality it would work well on I would appreciate it.

cavedave··on Can you split equity with the Shapley value?
I wrote this article and a quick calculator to divide shared costs. But assuming you just measure amount owed by time spent in a startup the calculator could be used to price contributions.

Resolving Bankruptcy Claims http://www.ams.org/samplings/feature-column/fcarc-bankruptcy

If you could calculate how much individual alliances are worth it becomes closer to a full Shapley value calculation but how would this be done?

cavedave··on Show HN: My app for envy free rent division
This is very alpha at the moment and I would appreciate any comments on how to improve the app.
cavedave··on Less Work for All
This is my app. It is just a toy at the moment but if anyone has a problem it is near fixing let me know and I can turn it into something useful
cavedave··on Show HN: My tool to divide up tasks so everyone does less work
Fair point. I will write up a proper description.

The main site is about dividing up goods. Lawyers do it and might pay for it.

This app is about dividing up bads (tasks). It was meant to be a toy but something about the problem is sticking in my craw as something more serious.

cavedave··on Show HN: My tool to divide up tasks so everyone does less work
I have to put in documentation and a good explanation. But I just wanted to see if any managers thought the tool might be useful.

The problem it is trying to solve is to minimise the amount of work people think they are doing by allocating jobs to people who want them most.

All the jobs would be 100% of the work. Each employee puts in what % of the total each job would be for them. The system optimizes so that each employee has the same perceived effort and that perceived effort is minimized. There are some obvious UX fixes that need to be made but I would be interested to hear what you think of the problem/solution idea?

cavedave··on Show HN: My tool to divide up stuff between two people
We've just launched this tool to help people fairly divide stuff between them. It uses linear programming to calculate the maximin allocation. This is the allocation that gives the worst off person as much as possible.

I have a use case describing a divorce example use case [here](http://fairandsquare.ie/products/example.html). I would love to hear any comments or questions you have.

    Dave formerly of the cave
cavedave··on Russian punk group Pussy Riot sentenced to three years in jail for hooliganism
Gary Kasparov arrested at the trial. Here he is in custody looking like he is being strangled

https://twitter.com/obk/status/236423940975779840/photo/1

cavedave··on How Khan Academy is using machine learning to assess student mastery
>This was a fairly large change that we, understandably, only wanted to deploy to a small subset of users. This was facilitated by Bengineer Kamen's GAE/Bingo split-testing framework for App Engine.

I think this method of A/B testing has some faults. I blogged about it A/B testing. Is Khan doing it wrong?http://liveatthewitchtrials.blogspot.com/2011/09/ab-testing-...

and Allen Downey ran some simulations at Repeated tests: how bad can it be?http://allendowney.blogspot.com/2011/10/repeated-tests-how-b...

cavedave··on Kurzweil's rebuttal to Paul Allen
"Averaged over 30 years, the trend is for an annual 7 percent reduction in the dollars per watt of solar photovoltaic cells. While in the earlier part of this decade prices flattened for a few years, the sharp decline" http://blogs.scientificamerican.com/guest-blog/2011/03/16/sm...

'The cost of solar, in the average location in the U.S., will cross the current average retail electricity price of 12 cents per kilowatt hour in around 2020, or 9 years from now. In fact, given that retail electricity prices are currently rising by a few percent per year, prices will probably cross earlier, around 2018 for the country as a whole, and as early as 2015 for the sunniest parts of America.'

If solar is at a 7% annual decline is that not a very rapid advancement?

cavedave··on A/Bingo split testing now on App Engine, built for Khan Academy
I do not think you can just stop the test when you find something you think is significant

http://www.evanmiller.org/how-not-to-run-an-ab-test.html 'If instead of deciding ahead of time, “this experiment will collect exactly 1,000 observations,” you say, “we’ll run it until we see a significant difference,” all the reported significance levels become meaningless. '

Reading the stats.py it looks like you might be doing this.

cavedave··on Zen and the Art of the Internet 1992
Brendan Kehoe 1970-2011 http://www.thepost.ie/technology/brendan-kehoe-an-appreciati...
cavedave··on Douglas Adams: Parrots the Universe and Everything. DNA dies ten years ago today
Also great "How to Stop Worrying and Learn to Love the Internet" http://www.douglasadams.com/dna/19990901-00-a.html
cavedave··on A “perfect” voting system
Or they get all the deposits of those who lost their deposits from not getting enough votes?
cavedave··on How to hide Ryanair
Oh god that is head meltingly genius. Could you post that to the blog? Well played sir
cavedave··on How to hide Ryanair
That is a fair point. I would guess it it 10% more of the clicks than 11th place though
cavedave··on How to hide Ryanair
well a google of "cheap flight dublin london" Ryanair comes up third. Which implies they must get a fair amount of traffic from search engines
cavedave··on [dead]
I am pretty sure this isn't him. It is still funny though
cavedave··on [dead]
Sorry I am new to the site. And I am just realising this is not appropriate. Still "What do his leavings tell us?"
cavedave··on The Politically Incorrect Guide To Ending Poverty
"The authors also compare the experiences of separate Pacific islands with eight different colonizers: the United States, Britain, Spain, the Netherlands, Portugal, Japan, Germany, and France.* Their verdict is that the islands that are best off, in terms of income growth, are the ones that were colonized by the United States—as in Guam and Puerto Rico. Next best is time spent as a Dutch, British, or French colony. At the bottom are the countries colonized by the Spanish and especially the Portuguese." http://www.slate.com/id/2151852