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oplav

465 karma · joined December 29, 2014

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oplav··on Show HN: Algoviz, Interactive a* Pathfinding Visualization
Nice job!

For others who want to play with visualizing different search algorithms, this is another cool tool:

https://qiao.github.io/PathFinding.js/visual/

oplav··on No, that dot in the domain name of the URL is not a mistake (2004)
Why is that disturbing? For me, the name doesn't resolve (http://pn/).

Assuming you are using your parents' ISP's default DNS servers, isn't it a safe, though less-than-desirable, result for the ISP to forward you to a search page when resolution fails?

oplav··on Oxide Computer Company: Initial boot sequence
I was under the impression that potential investors usually don't sign NDAs.
oplav··on Playball: Watch MLB games from the comfort of your own terminal
MLB API documentation should be very similar. Both were built by MLB Advanced Media.
oplav··on Playball: Watch MLB games from the comfort of your own terminal
For those out of the loop, the Houston Astros have been accused of stealing signs between the pitcher and catcher by banging on a trash can in the dugout using a camera placed in center field.

https://www.sbnation.com/platform/amp/mlb/2019/11/12/2096191...

oplav··on Disney+ hit by technical glitches on launch day
When BAM was part of MLB Advanced Media, it was pretty heavily involved with AWS, so unless things changed, I would guess there.
oplav··on Play Pong for Hong Kong (https://www.pong4hongkong.com)
I would look into a different ad provider. I'm getting redirected to sites that are deemed potentially malicious by Chrome.
oplav··on Show HN: Avoid editing while writing your first draft
This is cool, will give it a try.

Just FYI, in "typewriter" mode, you can still delete if you use Ctrl + Delete or Option + Delete on a Mac. And then if you delete everything in "typewriter" mode using either of those key modifiers, using the other modifier on the empty text input crashes the app.

oplav··on AirPods Pro Page Performance
NYT also created a similar experience using video where video.currentTime was tied to scroll location: https://www.nytimes.com/interactive/2019/10/30/world/middlee...

I think there are some restrictions on video encoding parameters in order to make scrolling feel smooth which will increase the video size.

oplav··on AirPods Pro Page Performance
Even at high bandwidth connections, I think they are always using images to power the animations. At lower bandwidth's, they might just be limiting how many frames come down.

For example, here are 3 frames of the hair flip:

https://www.apple.com/105/media/us/airpods-pro/2019/1299e2f5...

https://www.apple.com/105/media/us/airpods-pro/2019/1299e2f5...

https://www.apple.com/105/media/us/airpods-pro/2019/1299e2f5...

NYT did a similar scrolly article recently, but they used a video that was synced to scroll position: https://www.nytimes.com/interactive/2019/10/30/world/middlee...

oplav··on Why Do Instagram Playgrounds Keep Calling Themselves Museums?
This reminds me of this Vox video that talked about how "Instagram museums" are changing how traditional museums operate: https://www.youtube.com/watch?v=Qx_r-dP22Ps
oplav··on Show HN: Interactive visual solver for the traveling salesman problem
Very cool! FYI, double clicking the map is throwing an error for me and crashes the app to a white screen.
oplav··on Ask HN: How often do you vote on posts in the “new” tab?
They do this, but it shows up on the bottom of the front page and it isn’t random.

https://news.ycombinator.com/item?id=11662380

oplav··on A Lidar-Validated Trajectory for a Long Home Run
Exit velocity, launch angle, and spray direction are currently tracked automatically using a TrackMan radar [1].

Next season, those will be tracked using a Hawk-Eye system [2].

[1] http://m.mlb.com/glossary/statcast

[2] https://www.sporttechie.com/mlb-ball-tracking-technology-sta...

oplav··on Schwab Removes U.S. Stock, ETF and Options Commissions
E*Trade and Ameritrade followed suit:

https://techcrunch.com/2019/10/02/robinhood-e-trade-schwab-a...

oplav··on Unexpected cracking found on critical Boeing 737 Next Generation part
>> Another source tells us Boeing quickly reported the issue with the single plane to the FAA last week, and now more planes with similar cracking have been found.

Looks to be more than just one plane.

oplav··on Facebook is testing hiding like counts to see if that makes people feel better
"We are running a limited test where like, reaction, and video view counts are made private across Facebook. We will gather feedback to understand whether this change will improve people’s experiences"

Stating that you are improving the experience doesn't mean you are admitting the current experience is bad.

oplav··on MoviePass will shut down for good on Sept. 14
A MoviePass recruiter reached out to me a couple months ago. I regret not taking the interview just to see what it was like on the inside.
oplav··on Bring Back the SE
This requires the network I communicate with to move from iMessage, a platform that already works for them, to Telegram or any other app for my sake.
oplav··on Bring Back the SE
Do you use any other Apple products? I feel the same way about paying a premium for a phone I don't like, but iMessage is what is keeping me from switching (back) to Android.

My personal computer is a 2014 MacBook. My work computer is a MacBook. Being able to message freely from my laptop to others on iMessage is a really nice feature.

oplav··on [dead]
Major League Baseball (MLB) | New York City (NYC) | Computer Vision Engineer | Full Time

https://grnh.se/8587dbba1

We’re looking for an expert in Machine Learning and/or Computer Vision to create the code powering baseball experiences . The Baseball Data team is tasked with analyzing data captured on major league fields. With the launch of Statcast in 2015, MLB began capturing ball and player movements for each and every play. This role will involve combining our various data sources with video in near real-time to further our understanding of what is happening on the field. Potential projects involve analyzing limb movements of players, tracking the ball and player as they move across the diamond, detecting fielder shifts, scene detection and combing tracking data with LIDAR scans to validate the system.

Core Responsibilities:

* Develop models for detecting elements in video, image, audio and data

* Brainstorm, discuss, and drive new advanced technology solutions for MLBAM products

* Build scalable deep learning algorithms

* Influence the innovation of products used by millions of users worldwide

* Present and explain complex models to non-technical stakeholders

oplav··on Tell HN: Thank you for not redesigning Hacker News
https://i.imgur.com/9z2VAfa.png

These are my network requests when I vote with JS enabled.

oplav··on Ask HN: What are you learning in 2019?
What would you say are your biggest takeaways from or pieces of advice to learning gstreamer? I just started building dynamic pipelines and it's been quite the new experience.
oplav··on Rachmaninoff – Little Red Riding Hood [video]
Prelude in G Sharp Minor (Op. 32, No. 12) has always been my favorite: https://www.youtube.com/watch?v=13UlKWgwdZI
oplav··on Border Collie Trained to Recognize 1,022 Nouns Dies
NYT started blocking incognito windows: https://news.ycombinator.com/item?id=19275283
oplav··on Ask HN: Who is hiring? (June 2019)
Major League Baseball (MLB) | New York City, San Francisco | Software Engineering | Full Time

Come build cool baseball related technology! Projects range from building and deploying tools that help run baseball, APIs for casual games, and services that reach millions of users.

Tech Stack: Java 8+, Python, React, Docker, Kubernetes, AWS

Principal Software Engineer (NYC): https://grnh.se/2ebff7e21

Senior Software Engineer (NYC): https://grnh.se/45fa6d9f1

Senior Software Engineer (SF): https://grnh.se/0f9db3501

oplav··on Zdog – Pseudo-3D JavaScript engine for Canvas and SVG
I hadn't thought about Dogz in ages. This video brought back some nostalgic memories.

https://www.youtube.com/watch?v=6lKSn_cHw5k

oplav··on Netflix Has 175 Days Left to Pull Off a Miracle
After finding myself browsing through too many evenings in a row, I always cancel until something I know I want returns for a new season, then resubscribe for a month.

I find myself doing this with my Hulu subscription. They have a built-in hold function that pauses your account for up to 12 weeks. Since I typically watch shows in bulk (or binge), only having the subscription active one out of every four months works well.

The next step I'd like to take would be to only have a single streaming service active each month.

oplav··on Ask HN: Who is hiring? (May 2019)
Major League Baseball (MLB) | New York City, San Francisco | Software Engineering | Full Time

Come build cool baseball related technology! Projects range from building and deploying tools that help run baseball, APIs for casual games, and services that reach millions of users.

Tech Stack: Java 8+, Python, React, Docker, Kubernetes, AWS

Software Engineer (NYC): https://grnh.se/2ebff7e21

Senior Software Engineer (NYC): https://grnh.se/45fa6d9f1

Senior Software Engineer (SF): https://grnh.se/0f9db3501

oplav··on Topics in Advanced Data Structures [pdf]
It's not as interesting as some of the structures in the PDF, but we are working on a problem where we have lots of timestamped data and need to quickly and frequently access the nearest data point from a given input timestamp. We ended up using a tree-like structure but that said, we ended up using whatever tree-like structure was available in the language.
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