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riffer

2,303 karma · joined May 9, 2009

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riffer··on Alpha Geek
http://www.amazon.com/review/RUGSCP3XBNBUV/ref=cm_cr_dp_perm...
riffer··on The stock market is controlled by algorithms that are fighting with each other
PBS documentary on Paul Tudor Jones from 1986:

http://www.tudou.com/programs/view/XH5W4vffBbY

Sorry that the first 10 seconds are shady japanese yogurt commercials, last time I looked the videos were $300 on ebay reportedly because PTJ had gone around buying up all the tapes (maybe the glasses?)

riffer··on Business Class: Freemium for News?
Perhaps that's a good starting point for business class
riffer··on Jack Shares Some Big, Square Numbers: 341,688 Readers Shipped, $137M Total Flow
Good luck Sean
riffer··on Jack Shares Some Big, Square Numbers: 341,688 Readers Shipped, $137M Total Flow
>>> That won't happen

Better take another look at Dodd Frank

riffer··on Jack Shares Some Big, Square Numbers: 341,688 Readers Shipped, $137M Total Flow
What happens to all these payments startups when credit card fees go from 3% => 0.3%?
riffer··on Former Google VP Kai-Fu Lee Got a Nickname, Start-Copy Lee
Exit
riffer··on Facebook open sources its servers and data centers
Now if only there was a company whose non-core competency was Google-style spelling check

http://msdn.microsoft.com/en-us/library/dd251071.aspx

riffer··on AdGrok (YC S10) Raises $470K To Be The TurboTax For Search Engine Marketing
That makes sense, but why don't you just say that you make "[your cateogry] simple" instead of saying "we are the [successful, unrelated product] for [your category]"? The benefit being that you won't have to write two paragraphs to explain it to people.
riffer··on Facebook launches overhauled comment system
And at 30:15 he talks about the potential implications of Facebook entering the comments space. His point is that it validates the market.
riffer··on Facebook launches overhauled comment system
That will be the best thing that's happened to blog comments in 5 or 6 years.
riffer··on ElephantDB: A database specialized in exporting KV data from Hadoop
Yeah, I realize one of the Clustrix guys got a lukewarm reception when he compared to MongoDB a month or so ago, but I am genuinely curious about the advantages of this (ElephantDB) versus Voldemort or other alternatives.
riffer··on Non-intuitive Examples of Compounding Returns
Even assuming dollar cost averaging, the return is negative after taxes and inflation.
riffer··on Why Peter Thiel is wrong about search being a natural monopoly
This video has Thiel's comments:

http://bigthink.com/series/62#!selected_item=4845

He starts at 8 mins in, and although the whole video is 2 hours long, he makes a bunch of major points in the first 3 to 4 minutes of his talk, after which he answers questions for 3 to 5 minutes.

His central point is that there is a lot of potential value in getting the fixed costs of the search business down, and that he would prefer to invest there, rather than in playing the zero sum game of trying to take away make share in the $25 Bln search business.

Also worth noting: anybody who can lower the fixed costs of search by an order of magnitude is also going to be in a position to make money from businesses that have similar cost structures.

riffer··on As Egypt Erupts, Al Jazeera Offers Its News for Free to Other Networks
http://www.brookings.edu/opinions/2011/0128_egypt_riedel.asp...
riffer··on You Dont Need a Good Idea To Start a Great Company
It's true some successful company are the results of serious pivots. But I bet some 80% of them are the result of an initial good idea.

The successful ones that are a result of an initial good idea are a strict subset of the ones that choose a promising market.

riffer··on Eric Schmidt, in Control
Sometimes less is more
riffer··on Wolfram Alpha API now free and open
Beware: The free development account is allowed a maximum of 2,000 calls per month
riffer··on List of YC companies, ordered by response time from EC2
Why would users care how many requests there are per second, or how much data is being served?
riffer··on How to (In)validate Your Startup Idea
http://summarity.com/bookmarklet_front
riffer··on CAPTCHA Arbitrage
The hard part is to insert more "mistakes" on the CAPTCHAs that are supposed to be tougher.
riffer··on Airbnb (YC W09): The Rise of the One-Room Hotel
Surely though the editors don't catch all YC references?

The YC alums are the editors, that's why some things end up dead and others don't

a blend of advertising and ingratiation

HN is YC marketing, it didn't really start out as an alumni magazine either, but once they realized that they could use it to, you know, sell ...

riffer··on We're moving. Goodbye Rackspace.
What is the limiting factor here?

I am curious because it seems like almost any configuration & setup should be able to serve a blog post to the volume of request that come with being at the top of HN.

riffer··on NLP Challenge: Find semantically related terms over a large vocabulary (1M)?
scaling to a corpus of this size ... it's interesting to see how you motivate your approach and if you can scale it to 1M different vocabulary words

It looks like the sparsity of the matrix is going to be a much bigger challenge than the scale.

I understand about the focus being primarily on the approach, that makes sense; how are you intending to evaluate the results files?

riffer··on Andreessen Horowitz Raises $650M Fund, Just Shy Of $1B Under Management
Horowitz says half the people he’s told the news to have asked why the fund was so big and half have asked why the fund was so small.
riffer··on Does Better Technology Guarantee Victory?
Two sentence version: What do you do when you have better technology, but the competition has other advantages? Find a space with photoelectric effect properties. Where 94% performance corresponds to 1, and 86% goes to 0.
riffer··on Ask HN: Have the HN downvoting rules changed recently?
http://news.ycombinator.com/item?id=1853842

http://news.ycombinator.com/item?id=1853529

riffer··on Show HN: Condensr.com, Yelp Snippet Summarization
These papers are good: http://larifari.org/writing/

One of the nice things about them is that they come at the problem from many different angles. Part of the reason summarization has not been particularly productized is because for a long time the standard approach has involved focusing on a narrow domain, training a model, etc. That gets the best results for the local problem, and focus is great for a startup, but that approach is prone to over-fitting, and it is not scalable, or extensible. Ultimately, it has held the whole category back. The solution is probably to take a bunch of concepts from related fields and combine them within the constraint of a scalable framework.

That's why I recommend these papers (beyond the fact that they are relatively approachable): you can almost sense that he's feeling different surfaces of the problem, trying to map texture, and find the right formula for a great general solution.

riffer··on Please tell us what features you'd like in news.ycombinator
Differentiate whether something was killed by flags or mods, instead of saying 'Dead'

It would cut down on the need for comments like this: http://news.ycombinator.com/item?id=1815316

riffer··on The Tax Haven That's Saving Google Billions
http://lab.arc90.com/experiments/readability/

or

http://summarity.com/bookmarklet_front

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