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Ankur Handa
@ankurhandos 4 years, 5 months ago 522 views

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Some simulation platforms that caught my eye this year 🧵

RoboThor from @allen_ai

https://t.co/Ch6GvWHHgP

ThreeDWorld: A Platform for Interactive Multi-Modal Physical Simulation

https://t.co/vEXqGx1ddA

https://t.co/I6UQKTDf41

SAPIEN: A SimulAted Part-based Interactive ENvironment

https://t.co/khJN7xZifp

https://t.co/pc7BeELFsF

TartanAir: A Dataset to Push the Limits of Visual SLAM

https://t.co/18kPS3xSeX

https://t.co/o6YQVWlTji

Interactive Gibson: A Benchmark for Interactive Navigation in Cluttered Environments

https://t.co/iUMCZK1o8c

virtual home (v2)

https://t.co/cvv4G2MN04

AllenAct: A Framework for Embodied AI Research

https://t.co/7d2C2pJR0W

https://t.co/Ch2blo8VC1

robosuite: A Modular Simulation Framework and Benchmark for Robot Learning

https://t.co/pmp5Au2s5A

NeuralSim: Augmenting Differentiable Simulators with Neural Networks

https://t.co/dQhkE9Kx59

SoftGym: Benchmarking Deep Reinforcement Learning for Deformable Object Manipulation

https://t.co/Y0fsAOVUzr

Flightmare: A Flexible Quadrotor Simulator

https://t.co/p1NfyJrPHm

TriFinger: An Open-Source Robot for Learning Dexterity

https://t.co/yw4wmY5zII

Eldersim: A Synthetic Data Generation Platform For Human Action Recognition In Eldercare Applications

https://t.co/TD43xqMZZu

More from Tech

Caleb Porzio
@calebporzio

🎉🎉 PHP 7.3 is here!

Here are the things I'm excited about.

🚂 Trailing commas in function/method calls!

This will certainly be a required styling choice for me. Same delightful benefits of trailing comma in multi-line PHP arrays, and JavaScript objects.

🧵 Less disgusting heredoc syntax!

Inlining heredoc strings in any way right now is grrrosssss. Now we get sensible capabilities. Everything that was wrong with it is now fixed!

(Ignore the bad syntax highlighting)

☠️ Finally, not-so-silent json_decode error detection!

This really sucked before, now it just sucks a bit less (who wants to pass a 4th param and pass 2 default params first? (helper function anybody?)

📜 Not horrible functions for getting the first and last item (or key) from an array!

Before you either strung a bunch of functions together or messed with internal array pointers. This is a much-needed improvement.

Laurie Voss
@seldo

The 2018 State of JavaScript survey is out. They got 20,000 responses and have some delicious, delicious data. I'mma thread in some highlights:

First up: JavaScript flavors. There's TypeScript at 47% adoption, a tad higher than npm's own survey results (which said 46%). npm's survey is coming up again soon and will ask about TypeScript in a lot more detail.

I really, *really* like SoJ's "would not use again" question, which lets people who've abandoned a tech self-identify. This is noticeable in the graph above with Flow users -- 41% of people who've used Flow say they wouldn't use it again.

Now JavaScript frameworks. It's been a full year since npm's survey, so these numbers differ from ours in the directions I expected:
React 65% (vs. 60%)
Vue 29% (vs. 24%)
Ember 5% (vs 4%, I was expecting a bigger rise)

But there's a shocker in here: Angular.

npm's survey had Angular at 40% last year and SoJ has it at either:
- 58% (if you include those who don't want to use it again)
- 24% (if you count only those who like it)
Since npm's question didn't ask if they intend to *continue* using it I think that might explain this.

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Michael Dearing
@mcgd

An irony of facebook's situation.

Sheryl got her MBA at Harvard. One of the most famous cases (Extra Strength Tylenol) in one of the most famous classes (Business History) she took: in 1982, someone put cyanide in Extra Strength Tylenol capsules and killed 7 people in Chicago.

What do you do when someone turns your product into a weapon? When they use the system you built to harm? James Burke, CEO of J&J, was shockingly open with the public, he pulled the product and made significant packaging changes to make product safer (but not tamper-proof).

He over-shared every step along the way re investigation, redesign, stood up as both CEO and human. The reintroduction of new Extra Strength Tylenol succeeded. Burke saved the brand.

But four years later it happened again. A killer put cyanide in the capsules, this time a woman in Yonkers died. Same CEO, Burke, pulled the product again, completely changed the form factor from capsule to caplet and relaunched *again*. It worked *again*. How'd they do that?

Burke (CEO) tapped J&Js goodwill bank account w/ the public. Two big withdrawals from that bank account in four years + 8 dead bodies! But his honesty, openness, humanity (choked up about the deaths more than once), humility kept the goodwill bank balance positive the whole time.

Aviral Bhatnagar
@aviralbhat

I spent 1.4 lakhs on Zomato alone this year

Once these platforms build a habit, it's hard to leave

Lifetime value of customers is immense, which recover marketing costs and more

These very "loss-making" companies eventually become money-making machines

I love the assumptions people are making here to try to work out how this is possible, but I'll not share the math to just keep this fun.

Few hints: I have excellent cardiovascular fitness, love fine + healthy dining and order with my wife and brother

Guess AOV and order freq

Lea Kissner
@LeaKissner

We're kicking off the Privacy Tech session at #enigma2021 with Mitch Negus speaking about "NO DATA, NO PROBLEM—GIVING NUCLEAR INSPECTORS BETTER TOOLS WITHOUT REVEALING STATE

A nuclear catastrophe hasn't occurred... yet. So we need to stay vigilant. Nuclear inspectors go in according to treaties to check what's going on and check compliance with treaty rules.

But as sophisticated analytics become more common, states will only want to share the minimum amount of information necessary under the treaty.

But perhaps we can use MPC -- secure multi-party computation

Yao's garbled circuits were first demonstrated on the millionaire's problem -- figuring out who's richer without revealing actual amounts.

Used for other things like cryptocurrency these days.

Can we use this for nuclear inspection?

MPC can be used to compute anything computed by a computer [but it's expensive!]

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Noah Smith
@Noahpinion

Krugman is, of course, right about this. BUT, note that universities can do a lot to revitalize declining and rural regions.

One thing I've been noticing about responses to today's column is that many people still don't get how strong the forces behind regional divergence are, and how hard to reverse 1/ https://t.co/Ft2aH1NcQt
— Paul Krugman (@paulkrugman) November 20, 2018

See this thing that @lymanstoneky wrote:

And see this thing that I wrote:

And see this book that @JamesFallows wrote:

And see this other thing that I wrote:

George Mack
@george__mack

THREAD: 15 of the most useful razors and rules I've found.

Rules of thumb that simplify decisions.

Bezos' Razors:

• If unsure what action to take, let your 80-year-old self make it.

• If unsure who to work with, pick the person that has the best chances of breaking you out of a 3rd world prison.

Skinner's Law:

• If procrastinating on an item, you only have 2 options:

1. Make the pain of not doing it greater than the pain of doing it.

2. Make the pleasure of doing it greater than the pleasure of not doing it.

Luck Razor:

• If stuck with 2 equal options, pick the one that feels like it will produce the most luck later down the line.

I used this razor to go for drinks with a stranger rather than watch Netflix.

In hindsight, it was the highest ROI decision I've ever made.

Bragging Razor:

• If someone brags about their success or happiness, assume it’s half what they claim.

• If someone downplays their success or happiness, assume it’s double what they claim.

The map is not the terrain.

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Kieran Snyder
@KieranSnyder

1 There's a chasm between an NLP technology that works well in the research lab and something that works for applications that real people use. This was eye-opening when I started my career, and every time I talk to an NLP engineer at @textio, it continues to strike me even now.

2 Research conditions are theoretical and/or idealized. A huge problem for so-called NLP or AI startups with highly credentialed academic founders is that they bring limited knowledge of what it takes to build real products outside the lab.

3 A product is ultimately a thing that people pay for - not just cool technology or user experience. But I’m not even talking about knowledge gaps in go-to-market work. I'm talking purely technical gaps: how you go from science project to performant + delightful user experience.

4 Most commoditized NLP packages solve well-understood problems in standard ways that sacrifice either precision or performance. In a research lab, this is not usually a hard trade-off; in general, no one is using what you make, so performance is less important than precision.

5 In software, when you’re making something for real people to use, these tradeoffs are a big deal. Especially if you’re asking those people to pay for what you’ve made (can’t get away from that pesky GTM thinking). They expect quality, which includes precision AND performance.

Mike DiCenzo
@mikedicenzo

"How the Avengers would respond to the Capitol riot" (a thread)

CAPTAIN AMERICA - tells Falcon, "I fought Nazis once before. They're extremely dangerous." They then see the guy scaling the Capitol wall fall into the shrubs. Falcon: "You sure these are the same Nazis?"

IRON MAN - lands by the guy carrying the podium. Says, "Mind if I borrow this?" then tosses it to Hulk, who swings it like a bat at the mob. Guy: "Hey, that's MY podium!" Iron Man: "Actually it's the Speaker's. And technically, it's a lectern." Then punches him through a wall.

BLACK WIDOW - enters hotel room where Jack Dorsey is tied up. Rips duct tape off his mouth. Jack: "I'll do anything you want!" BW: "Disable POTUS's Twitter. NOW!" Jack fumbles with his phone. "Done. Anything else?" BW: "Yeah. Trim your beard for God's sake." *tosses him clippers*

HULK - grabs a selfie stick from one of the guys and beats him over the head with it. Deeming it too small, he grabs another guy's Confederate flag and takes out a whole swath of rioters. He then tosses the flag to Cap, who uses it as a javelin to impale a fleeing Ted Cruz.

HAWKEYE - hears Iron Man in his earpiece say, "Looks like Orange Julius is tweeting from another account." Hawkeye: "On it." He locks in on Trump through the White House window and fires an arrow, knocking the phone out of Trump's hands. Hawkeye: "Damn that felt good."

Sheetal Rijhwani
@RijhwaniSheetal

How you can filter stocks for Intraday trades - 🧵

As a kid, we would do homework before school the next day - you have to do homework here too. A specific sector performs on a particular day and studying things a day before will help you spot that particular sector. (1/11)

To prepare for the next trading day, you got to check the Index charts of all sectors. You got to keep an eye on a specific Index if you see a few factors:

- If any Index closed exactly at the resistance, you can get a trade on either side on the next day. (2/11)

- If it gave a rejection candle at resistance.

- If any Index closed exactly at support, you can get a trade on either side the following day.

- If there was a bullish signal at the support.

- If any Index gave a breakout or breakdown and then gave a good closing. (3/11)

- If any Index has taken support at 50 or 200 EMA.

Once you spot the Index, look at all the stocks in that particular Index. Pick at least 3-4 stocks from that Index and add them to your watchlist for the next day. It's ideal to check both higher and lower timeframes. (4/11)

What you should do next day? (When I am unable to check Indices and stocks a day before, I sometimes directly start with this process.)

- Start with checking the top gainers/losers list. I observe market from 9:15 to 9:45am to check the sectors performing well on that day.(5/11)