Comments URL: https://news.ycombinator.com/item?id=43717901

Points: 1

# Comments: 0

The first post covers the following topics:

* What is your edge?

* Financial decision-making with ML

* One bet: Expected profits and decision rule

* Multiple bets: The Kelly criterion

* Probability calibration

* Winner’s curse

Link: https://tabacof.github.io/posts/csgo_betting_with_ml_part_1/csgo_betting_with_ml_part_1.html

The second post covers the following topics:

* CS:GO basics

* Data scraping

* Feature engineering

* TrueSkill

* Dataset

* Modelling

* Evaluation

* Backtesting

* Why I lost 1000 euros

Link: https://tabacof.github.io/posts/csgo_betting_with_ml_part_2/csgo_betting_with_ml_part_2.html

I hope they can be useful. All the code and datasets are freely available on Github. Let me know if you have any feedback!

Comments URL: https://news.ycombinator.com/item?id=40955322

Points: 1

# Comments: 0

Comments URL: https://news.ycombinator.com/item?id=38864766

Points: 2

# Comments: 1

Tl;dr: The post shows how to deploy a scikit-learn model pickle using Lambda and how to create a POST endpoint with API gateway.

Any feedback is welcome!

Comments URL: https://news.ycombinator.com/item?id=36198057

Points: 1

# Comments: 1

ChatGPT delivers the best accuracy of them all with no model training, just prompt engineering. It classifies 100k names in 18 minutes for under $5.

We see a lot of ChatGPT chat examples, but here I show how to use its API to solve an actual text classification problem (albeit a simple one).

GPT is transforming tasks that required deep machine learning knowledge into software + prompt engineering problems. As a data scientist, I’m not worried about it taking over my job, as predictive modelling is only a small aspect of what a data scientist does.

Comments URL: https://news.ycombinator.com/item?id=35325048

Points: 1

# Comments: 1

1) https://www.deploir.com

2) https://www.whoworth.com

What a coincidence, huh?

In the beginning I also considered Atlas, but that seemed way too much trouble and expenses for two businesses that may or may not be viable.

In the end, I decided to go with Paddle (https://paddle.com/). The integration was really easy, it is just a button that links to my subscription plans (with webhooks that alert my server when subscriptions are created and paid).

As Brazilians say, we should "exchange stickers".

Can you expand on that?

I have lived most of my life in Brazil, and even though I am very privileged, the following has happened to me: 1) Watch stolen by drug addict with a syringe when I was 12 years old 2) Cellphone stolen by a thug with a glass shard when I was 16 3) Also when I was 16, three thugs tried to steal my cellphone, they said they would blow my brains if I didn't comply and faked having a gun (I didn't). 4) Two thugs invaded my frat house, held us hostages with handguns, and stole all we had (I will never forget the cold metal of the gun touching my head, while I was threatened). 5) My car was jacked right in front of my house. 6) Another cellphone stealing incident that I'd rather not share in details. 7) My spare tire was stolen while I was in a bar for a couple of hours.

This is just what has happened to me in less than 30 years. Stories like those abound. My girlfriend also went through (4) and (7), independently of me. Pretty much everyone I know has had a cellhphone stolen at some point in their lives.

If you want to actually experience the dread that is living in Brazil, search for "brazil" in reddit's /r/watchpeopledie.

In my company, our deployment engineers, who usually are on very remote places with bad and unreliable internet, rely on WhatsApp. I'm not saying this is the best practice, but this is simply the way Brazil works right now. Even the mobile phone companies offer plans with free WhatsApp connection, because that is what most people here care about. Another example: In Brazil, 9 in 10 doctors use WhatsApp to talk to patients (http://www.cityam.com/230372/digital-health-wearables-and-ap...).

To disregard all the people and businesses that rely on WhatsApp for whatever reason is unbelievable. But this is not without precedent, once another Brazilian judge blocked YouTube for a whole day because it refused to take down a celebrity video.

This says a lot about the over-sized, inefficient, and stupid state we have, always meddling and intervening.

For example, the variational auto-encoders are a graphical model with Gaussian latent variables whose mean and variance are determined by (deep) neural networks [1]. There has been work exploring the neural network weights as latent variables themselves [2]. Finally, some new developments such as dropout can be interpreted as some form of deep Gaussian processes [3].

I believe there will be a lot further developments on this area in the near-future.

[1] http://arxiv.org/abs/1312.6114

[2] http://arxiv.org/abs/1505.05424

[3] http://arxiv.org/abs/1506.02142

More involved example using a neural network: http://code.cogbits.com/wiki/doku.php?id=tutorial_cuda