News for hackers. Stuff that matters.

anton_tarasenko

Maker here. I've put together several custom search engines that helped me fight poor Google search performance on certain queries. The search engines use Google Custom Search Engine configured for selected websites and return succinct results on general queries, especially the queries attracting SEO spammers.

The engines are listed on https://searchcommons.org/engines.html and here are some of them:

— The web minus Alexa top 1000 most visited websites https://searchcommons.org/?e=most-visited-websites-excluded

— Official docs for Python and its libraries https://searchcommons.org/?e=python-docs (feel free to request an engine for your programming language)

— Universities with Nobel Prize, Fields Medal, and Turing Award laureates https://searchcommons.org/?e=universities-with-laureates

The lists of selected websites are public and open to contributions: https://github.com/antontarasenko/searchcommons

The AIP also maintain free access to their oral histories: https://www.aip.org/history-programs/niels-bohr-library/oral...

They interviewed many famous physicists. Mostly autobiographical, but unlike in books, the interviewees don't have time to edit the answer, so the reading experience is generally better.

Ask HN: Products that suck but you still use? (2020)

Fellow user albertgudl asked this question a year ago:[1]"What are products you use frequently but still hate/they suck? What are products you use frequently but think they could be done better?"Does anyone have something to add this year?[1] https://news.ycombinator.com/item?id=19715548

( Read More... | 25 comments | 14 points | on HN )
Subreddit /r/askscience does a good job at explaining science in plain words. I usually google "site:reddit.com/r/askscience/ __QUESTION__".

The StackExchange sites have less coverage and answers tend to be more technical.

University websites return reliable answers, but often neither short nor accessible.

Re:Oversaid – Keeping track of who said what in tech on Tuesday November 19, 2019 @09:14AM (#21572952)
Thank you for going after primary sources.

The sample letter refers to the press. Executives tend to be general with the press. Investors make them talk specifics. That happens during quarterly earning calls. Which would be a good source. Seeking Alpha has the transcripts.

The SEC filings are another liable source. Though not personal quotes, they include perspectives on tech trends.

Re:What costs are exponentially dropping? on Tuesday October 29, 2019 @09:51AM (#21387120)
The Wikipedia page on Moore's law includes similar observations.[1] For example, the DNA sequencing cost.[2]

And another list that features laws, some of which describe exponential processes.[3]

[1] https://en.wikipedia.org/wiki/Moore%27s_law#Other_formulatio...

[2] https://en.wikipedia.org/wiki/Carlson_curve

[3] https://en.wikipedia.org/wiki/List_of_laws#Technology

In terms of depth and breadth, the Princeton companions get close to Feynman.[1][2]

A more formal approach appears in handbooks.[3][4]

[1] Gowers et al., The Princeton Companion to Mathematics. https://press.princeton.edu/books/hardcover/9780691118802/th...

[2] Higham and Dennis, The Princeton Companion to Applied Mathematics. https://press.princeton.edu/books/hardcover/9780691150390/th...

[3] Zwillinger, CRC Standard Mathematical Tables and Formulae. https://www.crcpress.com/CRC-Standard-Mathematical-Tables-an...

[4] Bronshtein, Handbook of Mathematics. https://www.springer.com/gp/book/9783540721222

Re:Hacker News Meetups? on Tuesday February 26, 2019 @12:39PM (#19256464)
I'm collecting HN meetup groups on GitHub: https://github.com/antontarasenko/hacker-news-groups (BTW, thanks to all contributors from HN)

@lainon HN meetups in Germany:

* Berlin http://www.meetup.com/Berlin-Hacker-News-Meetup/

* Munich https://www.meetup.com/Hacker-News-Munich/

Re:Algorithmic Justice Could Clear Convictions in California on Tuesday February 26, 2019 @06:27AM (#19253444)
"Algorithmic justice" reminded me of a study where researchers predicted the risk of a crime better than judges:[1]

> Millions of times each year, judges must decide where defendants will await trial—at home or in jail. By law, this decision hinges on the judge’s prediction of what the defendant would do if released. This is a promising machine learning application because it is a concrete prediction task for which there is a large volume of data available. Yet comparing the algorithm to the judge proves complicated. First, the data are themselves generated by prior judge decisions. We only observe crime outcomes for released defendants, not for those judges detained. This makes it hard to evaluate counterfactual decision rules based on algorithmic predictions. Second, judges may have a broader set of preferences than the single variable that the algorithm focuses on; for instance, judges may care about racial inequities or about specific crimes (such as violent crimes) rather than just overall crime risk. We deal with these problems using different econometric strategies, such as quasi-random assignment of cases to judges. Even accounting for these concerns, our results suggest potentially large welfare gains: a policy simulation shows crime can be reduced by up to 24.8% with no change in jailing rates, or jail populations can be reduced by 42.0% with no increase in crime rates.

[1] https://www.cs.cornell.edu/home/kleinber/w23180.pdf

Milton Friedman on doing this in the 1940s:[1]

> One of my problems was to provide statistical advice to the people who were developing metals to be used in the blades of turbines. I had an enormous amount of data, and I had to construct a regression with five or six different variables having to do with the chemical composition of the metals.

> We estimated that it would take us three months to solve this problem using our desk calculators. In the whole country there was only one calculator—one computer, if you want to call it that—which could do this problem more quickly.

> It was up at Harvard. It wasn’t electronic. It was a whole collection of IBM card sorters. It was in a big, air-conditioned gymnasium, a tremendous collection of sorters all linked by wires. It did our problem for us in forty hours.

As he mentioned elsewhere, it did not work as expected back then.

[1] https://miltonfriedman.hoover.org/friedman_images/Collection...

Re:What is Life? by Erwin Schrödinger (1944) [pdf] on Monday January 14, 2019 @05:24PM (#18907103)
Freeman Dyson reviews and extends "What is Life?" in his "Origins of Life," both a lecture[1] and a book.

[1] http://inspirehep.net/record/1268726/files/978-4-431-77056-5...

Re:So You Want to Learn Physics (2016) on Sunday November 04, 2018 @08:26AM (#18375747)
Also Landau and Lifshitz, Course of Theoretical Physics.[1]

Released to public domain on archive.org: https://www.reddit.com/r/Physics/comments/1dmxq7/our_beloved...

[1] https://en.wikipedia.org/wiki/Course_of_Theoretical_Physics

Re:Hacker News Tokyo Community Meetup on Saturday November 25, 2017 @06:18AM (#15775516)
I've updated your links. Thanks!
Re:Hacker News Tokyo Community Meetup on Saturday November 25, 2017 @04:23AM (#15775182)
I maintain the list of offline Hacker News communities.[1]

I have one Japan group.[2] Is it you guys? Otherwise, I'd like to add your permanent page to the list.

[1] https://github.com/antontarasenko/hacker-news-groups [2] https://www.facebook.com/Tokyo-Hacker-News-Community-1696102...

Re:How the BBC News website has changed over the past 20 years on Saturday November 18, 2017 @04:08PM (#15730706)
Wayback Machine allows browsing website history by year. Press year, instead of arrows:

— The New York Times: http://web.archive.org/web/19961112181513/http://www.nytimes...

— WaPo: http://web.archive.org/web/19961220172326/http://www.washing...

— Financial Times: http://web.archive.org/web/19970607125328/http://www.ft.com:...

Re:Socratic method to teaching by asking on Tuesday October 03, 2017 @12:10PM (#15393443)
The previous thread: https://news.ycombinator.com/item?id=9362252

A cached copy: http://webcache.googleusercontent.com/search?q=cache:v36n9t1...

Most schools follow Socrates, sort of. Tests and textbook exercises are a conveyor version of "teaching by asking". Just like grades, they works in a perverse way until someone patiently explains the child what's the real purpose of the whole affair.

Re:New YC Database, Much More Info Than Others on Wednesday September 27, 2017 @04:44AM (#15345943)
Direct link: https://www.snappr.co/ycdb

Looks relevant since http://yclist.com/ lacks the three latest batches. YCList has fellowships though.

Re:Show HN: JobTweets – Find Real Time Job Tweets on Monday September 25, 2017 @10:11AM (#15330623)
Twitter Search does pretty much the same: "(hiring OR job)"[1]. Easy to get relevant results with right keywords.

Also, Twitter already has filters for location and followers.

[1] https://twitter.com/search?q=(hiring%20OR%20job)

Re:Show HN: ThingsOnReddit – Products linked to on Reddit on Sunday September 24, 2017 @03:10PM (#15326005)
Search docs[1], Reddit Wiki in general and their API docs.

[1] https://www.reddit.com/wiki/search

Re:Show HN: ThingsOnReddit – Products linked to on Reddit on Sunday September 24, 2017 @09:27AM (#15324607)
Reddit can also send RSS:

* https://www.reddit.com/r/shutupandtakemymoney.rss?sort=top&t...

AmazonTopRated is invite-only. Hence, no 403.

Re:Show HN: ThingsOnReddit – Products linked to on Reddit on Sunday September 24, 2017 @05:09AM (#15323998)
Reddit Search can do a similar trick: "subreddit:gadgets site:amazon.com", sorted by "top"[1]

It finds only posts, not comments. That's a good thing. Comment karma accounts for a comment's entire content. What if the comment gets upvotes for something other than an Amazon link inside it? Post karma is a bit better in this respect.

Reddit Search supports any domain. So you can search any shop. Like vat19.com and etsy.com.

Reddit allows browsing by domain. Like https://www.reddit.com/domain/amazon.com/top/

Secondly, some subreddits are specifically devoted to product recommendations:

* https://www.reddit.com/r/shutupandtakemymoney/

* https://www.reddit.com/r/IdBuyThat/

* https://www.reddit.com/r/AmazonTopRated/

And Reddit has a JSON output: https://www.reddit.com/r/shutupandtakemymoney.json?sort=top&...

[1] https://www.reddit.com/search?q=subreddit%3Agadgets+site%3Aa...

I once plotted the TSPDT Top 1000 movies by year. That's an all-time ranking voted by critics. The distribution plot peaks around the 1970s and declines since then. For one, post-war European cinema was really great and influenced the American industry.

Now all major movies originate in the same place. The last fresh blood had come mostly from Latin America, Mexico in particular.

And the place for experiments changed. Now it's TV series. If the concept works, they make another season. Two-hour feature films are reserved for proven concepts. For moviegoers, it turns to be more like a social experience, not an arty one.

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