HNHacker News
TopNewBestAskShowJobs

carlossouza

488 karma · joined March 22, 2022

submissionscomments
carlossouza··on Ask HN: Has anyone replaced Claude/GPT with a local model for daily coding?
This should be a recurrent question posted every month
carlossouza··on Amazon CEO's talks with U.S. officials triggered crackdown on Anthropic models
I'm just stating facts:

- Amazon's CEO knew what he was doing and the possible consequences

- Anthropic must raise cash, and there are only 2 ways: an IPO or follow-ons

- If the IPO is blocked, existing investors will be able to increase their stake on Anthropic at a very attractive lower valuation

- Amazon has 20% of Anthropic: so, they benefit from it

carlossouza··on Amazon CEO's talks with U.S. officials triggered crackdown on Anthropic models
Of course, Amazon wanted this to happen.

They own 20% of Anthropic.

Anthropic bleeds cash. They have to raise capital.

There are only 2 ways: an IPO or follow-ons from existing investors.

If the IPO gets delayed because of these restrictions, Anthropic will be forced to raise more capital from existing investors.

And existing investors (Amazon) will end up owning more of Anthropic at a cheaper valuation.

carlossouza··on Statement on US government directive to suspend access to Fable 5 and Mythos 5
Good for Anthropic?

Can you think of any case in history where the US government suspended product sales due to national security concerns and that was ultimately beneficial for the company being regulated?

carlossouza··on NSA is using Anthropic's Mythos despite blacklist
“Show me the incentives and I will show you the outcomes.” Charlie Munger
carlossouza··on Code has always been the easy part
What's easy for some might be truly hard for others.
carlossouza··on Changing a mean reversion strategy to deliver 30% annual returns since 1999
The data used is Sharadar Core US Equities Bundle:

https://data.nasdaq.com/databases/SFA

It's a great survivorship-bias-free dataset.

Regarding tools, I use Python. I wrote the backtesting software many, many, many years ago during my Master's degree, and I've been refining it ever since.

It's an event-driven engine (they are slower than vector-based engines, but they are easier to write strategies for, understand, and debug) with all the bells and whistles, similar to the late Zipline. In fact, I tried most of the Python backtest engines that exist, and that's why I prefer to use what I built over the years: I have 100% understanding of what’s happening and 100% control.

I’m thinking about open-sourcing it… anyway, the logic is not that complicated.

carlossouza··on Any algo/quant traders here? Is there a place for learning in public?
Twitter/X and Substack are some options. Reddit doesn't work, indeed.

I just read your posts... good stuff, congrats! I'll follow your journey.

If you want to check some algorithms I have implemented and connect, check it out:

https://quantitativo.substack.com/

Cheers

carlossouza··on Google Earning Q1 2024 [pdf]
The world is much larger than the bubble we live in.
carlossouza··on The man who killed Google Search?
That also sounds a lot like Blockbuster.

Google continues generating profits out of inertia and a lack of a better alternative.

It went for “don’t be evil” to “a necessary evil” (just until something a little better appears).

carlossouza··on US releases sealed Brazil orders to X, shedding light on account suspensions
Negative.

The point is not that he shouldn’t be allowed to unilaterally ban social media accounts.

The point is that he shouldn’t be allowed to do that in secrecy, without providing any public justification, and not respecting the right of the accused to defend themselves.

People are getting silenced without knowing why they are getting silenced, and without proper due process/right to respond.

carlossouza··on Launch HN: CamelQA (YC W24) – AI that tests mobile apps
> most UI tests are pretty easy to write today with very natural DSLs that are close to natural language

Wouldn't it be a better/cheaper/faster solution to use LLMs to write UI/integration tests?

carlossouza··on YouTube now requires to label their realistic-looking videos made using AI
Exactly what I thought.

Let’s see how long it will take them to collect enough data and train a model to distinguish AI-generated from user-generated videos.

carlossouza··on Building Meta's GenAI infrastructure
What do you mean by “they don’t do B2B”? They sell ads to companies, don’t they?
carlossouza··on How far are we from intelligent visual deductive reasoning?
> We observed that all the VLMs tend to be confident while being wrong. Interestingly, we observed that even when the entropy was high, models tried to provide a nonsensical rational, instead of acknowledging their inability to perform the task

It looks like all current models suffer from an incurable case of Dunning–Kruger effect cognitive bias.

All are at the peak of Mount Stupid.

carlossouza··on Jensen Huang, Founder and CEO of Nvidia – Stanford Graduate School of Business
> We find inspiration not from the size of a market, but from the importance of the work. Because the importance of the work is the early indicator of a future market.

> You are probably one ArXiv paper away from figuring this thing out.

> I used to be a dishwasher. I’ve cleaned a lot of toilets. I’ve cleaned more toilets than all of you combined. And some of them you can’t unsee. That’s life.

Great story and speech. Many lessons.

carlossouza··on What Monks Know about Focus
> But that mistakes what a book is for. A book is a tool. It’s a machine for thinking.

Best quote in the article. Taking the time to read, absorb and apply a book changes us in a way no summary or audiobook could ever change.

carlossouza··on OpenAI board reappoints Altman and adds three other directors
The non-profit-good-for-humanity speech is such a hypocrisy.

All incentives all different stakeholders (employees, leadership, board, investors) have are all aligned with the full for-profit side of the organization. In fact, that’s the only side.

“Show me the incentive and I’ll show you the outcome”. Charlie Munger

carlossouza··on Show HN: Wallstreetlocal – View investments from America's biggest companies
Congrats on the project!

Here’s an idea to monetize it: implement collaborative filtering (example: funds in rows, assets in columns).

Once you do it, you will be able to cluster similar funds. Let’s say X funds have the asset A, but Y funds do not have it, and X and Y belong to the same cluster. Thus, if you recommend asset A to the Y funds, there’s a high probability they’d add it to their portfolio (if property pitched). This is roughly how Netflix recommends movies, Spotify recommends songs, etc.

A lot of players in the industry would pay high $$$ for a recommender system like that. And you already made 80%: it’s only missing the final machine learning part (which is the fun part :))

carlossouza··on Fine tune a 70B language model at home
Answer.ai is truly open AI. :)
carlossouza··on Machine learning and information theory concepts towards an AI Mathematician
Yoshua Bengio, Nikolay Malkin

The current state-of-the-art in artificial intelligence is impressive, especially in terms of mastery of language, but not so much in terms of mathematical reasoning. What could be missing? Can we learn something useful about that gap from how the brains of mathematicians go about their craft? This essay builds on the idea that current deep learning mostly succeeds at system 1 abilities -- which correspond to our intuition and habitual behaviors -- but still lacks something important regarding system 2 abilities -- which include reasoning and robust uncertainty estimation. It takes an information-theoretical posture to ask questions about what constitutes an interesting mathematical statement, which could guide future work in crafting an AI mathematician. The focus is not on proving a given theorem but on discovering new and interesting conjectures. The central hypothesis is that a desirable body of theorems better summarizes the set of all provable statements, for example by having a small description length while at the same time being close (in terms of number of derivation steps) to many provable statements.

carlossouza··on Pg_vectorize: Vector search and RAG on Postgres
Pg_vector is great! I’m using it at scale here:

https://trendingpapers.com/

But it’s Postgres + pg_vector only, no Supabase

carlossouza··on OpenAI and Elon Musk
Their name is as brilliant as

“The Democratic People's Republic of Korea”

(AKA North Korea)

carlossouza··on OpenAI and Elon Musk
> The Open in openAI means that everyone should benefit from the fruits of AI after its built, but it's totally OK to not share the science...

Based on this line of reasoning, ANY company that builds any given technology and intends to share (sell) it to the world, but not divulge how it was done, can call itself OpenWhatever.

They are clearly saying that the word “Open” in their name means nothing.

carlossouza··on Elliptic curve 'murmurations' found with AI
> Sutherland was impressed by the significant dose of luck that had led to the discovery of murmurations.

Talented people + hard work… + LUCK!

> Even then, the murmurations were only found because of Pozdnyakov’s inexperience.

Also, fresh inexperienced eyes to see what experts would dismiss!

What a great read :)

carlossouza··on I'll refrain from providing code that involve concepts as you're under 18
Totally. People tend to forget it's just code.

In fact, these public failures from Google AI provide an important public service: they remind us that there's nothing magical about LLMs. It's just code, and it is hard as hell to debug.

(At some point, someone will have to call it a day, throw everything away, and start from scratch.)

carlossouza··on Ask HN: Did you encounter any leap year bugs today?
On AWS Cost and usage control panel:

> Forecasted month end costs

> There isn't enough historical data to forecast your spend

carlossouza··on I turned my open-source project into a full-time business
> The only regret I have is that I did not start selling my software earlier and only published free, open-source software.

Well… better late than never. Congrats!

carlossouza··on Hallucination is inevitable: An innate limitation of large language models
Someone smart once said:

If it is good, we call it "creativity."

If it is bad, we call it "hallucination."

This isn't a bug (or limitation, as the authors say). It's a feature.

carlossouza··on Launch HN: Danswer (YC W24) – Open-source AI search and chat over private data
Congrats on the launch! Does it search within pdf files?
Page 1 of 4Next →