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fermisea

48 karma · joined February 4, 2023

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fermisea··on Show HN: LLM Scraper – turn any webpage into structured data
I'm working on this problem now. It's possible in some sources - whenever the HTML structure is enough that you map it to the feature of interest - but it could also happen that the information is hidden within the text, which makes it virtually impossible
fermisea··on The Theory That There Is Only One Electron in the Universe
That is true for all physics. We can only claim to build approximate models that have degrees of freedom that only make sense within the context of that model. In a sense, every object that you attach to a physical explanation has an inductive bias because of the mechanisms that you use to interpret the observations surrounding that object..
fermisea··on The Theory That There Is Only One Electron in the Universe
The thing you should know is that in QFT, the concept of a particle is a bit different. A particle is a localized excitation of a quantum field. A quantum field is like a bucket of water, and a a particle is a bit like a propagating wave that you can create that travels "on the field" but it's "made of the field".

A mass of a particle tells you how hard you need to hit the field to create this elementary excitation. And this is where the analogy breaks, since a classical field doesn't have this "quantization" of energy, you can create arbitrarily small waves. Whereas in a quantum field, there's a minimum energy that you need to put to excite it and make an electron show up, and that is the mass. It also acts a bit like the (inverse) width of the wave - the higher the mass the smaller the width and thus the more spacially localized it is.

Technically the statement that all electrons are the same is the "correct" one, because technically there's only one "state of the electron field" which is described by a bunch of excitations here and there. So the total mass (or more precisely, the energy state that the field occupies) is actually a huge mess that happens to be easily factorizeable into a bunch of localized states. This is only possible because interactions are extremely weak and thus we can just "sum the electrons". But if all of a sudden the electron charge were to become massive, to the point where electrons would start interacting at much bigger distances, the concept of individual electrons would start to become complicated and we'd need to think about them in some other way (like what happens with quarks and gluons)

fermisea··on SentenceTransformers: Python framework for sentence, text and image embeddings
Bootstrap a pvalue by creating a set of thousands of random words, calculate the metric for those and either explicitly keep these numbers to compute the rank, or fit some normal distribution and use this mean and std to estimate the probability that it's similar.
fermisea··on Facing reality about the EU is a core requirement for good management
If a worker has Bulgarian nationality, they are free to live and work anywhere in the EU, including France. And a Bulgarian business can also operate anywhere in the EU. It's a single economic market, so it's clear that rules like that are arbitrary and designed to be appease special interests.
fermisea··on Documentation for the JSON Lines text file format
Shopify, for instance, uses this format if you request bulk downloads of records, for this exact reason.
fermisea··on Show HN: Natural Language to SQL "Text-to-SQL" API
Hey man, I'm building something in this area, but focused on building specific functions on an iterative basis, skim through the video here https://v2.connectedflow.app/ , is this something that you'd use? (Mind you, we're 2 weeks into it)
fermisea··on 30% of Portuguese people between the ages of 15 and 39 have left the country
Sorry but we all left during the 2008-2015 era. If anything the recent economic boom that Lx and Porto are seeing are making it appealing to come back.

Having said that, I agree that tourism and the golden visa have completely screwed up the housing market and that needs some fixing. But the fix should come with salaries catching up with the housing bubble and Portugal finally being able to compete H2H with the rest of Europe in terms of attracting talent

fermisea··on Show HN: I scraped 25M Shopify products to build a search engine
Oh nice, you deserve great things in life for this comment!
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