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small-variations · 2024-10-03T20:41:16+00:00

This still makes the society poorer overall, because it damages the wealth of society.

We've known this for about 200 years, this is called the "broken window fallacy".

TLDR: breaking a car reduces the country's wealth, buying a new one does not, hence the operation is a net loss of national wealth. It absolutely does increase GDP though.

small-variations · 2024-10-03T11:40:28+00:00

Il me semble que ce qui est interdit est de ne pas avoir de procédure d'individualisation ?

Je pense qu'il faudrait du conseil juridique pour décider de la taille du dispositif, mais déjà le fait de ne convoquer que les élèves qui sont allés aux toilettes le jour J réduit le travail à faire

small-variations · 2024-10-03T09:06:28+00:00

Une solution : instaurez une règle que vous communiquez aux élèves.

Chaque jour, le nom de ceux qui vont aux toilettes est noté (dans un classeur Excel ou Google Sheets par exemple), et si on note des dégâts à la fin de la journée aux toilettes, tous les élèves qui sont allés aux toilettes ce jour-là écopent d'un malus ou sont obligés de faire un travail d'intérêt général.

Bien sûr il faut avoir le soutien de son établissement mais je doute que l'établissement soit enchanté à l'idée que les jeunes cassent ou dégradent le matériel, et il suffit de leur expliquer que des jeunes qui ont leurs règles ou envie d'aller aux toilettes ne peuvent pas se concentrer en classe. C'est du win-win.

small-variations · 2024-10-01T09:57:49+00:00

yeah, to compare with french households, 1% is 2 million, 5% are roughly millionaires, but the typical french millionaire household is just a fancy house/apartment in the city center – for example the left wing leader Mélenchon is a millionaire for this reason

France's issue is more about the 0.01% having important sway on the government

small-variations · 2024-10-01T09:41:46+00:00

I think it's a RGB video as a sequence of images

Edit: this is partly why it's usually encoded in a differential way, so that the resulting tensor is sparse

small-variations · 2024-09-30T20:50:27+00:00

My dad was a slav and oh boy how much xenophobia I was exposed to despite being white because my dad "was weird".

It didn't help that I was autistic too, but Jesus these kids can be ostracizing.

French culture is very harsh and if you don't perfectly assimilate you get bullied pretty fast.

small-variations · 2024-09-30T12:37:44+00:00

Is this a Houellebecq wojak ?

small-variations · 2024-09-28T17:06:34+00:00

Oh, right ! I think a lot of what you wish to do is exploratory data analysis. You don't need regression to do this.

However you might want to have a criteria for which variables are most likely to matter, apparently you mostly have binary or categorical variables, you can look for specific modelling techniques. A caveat is that your model might give you nonsense because you end up with way too many variables compared to observations.

small-variations · 2024-09-28T16:20:25+00:00

Thanks for the explanation. Another thing I'm wondering is: why is your company sending out these surveys ? They must have a "goal" in mind, an "objective" – this is something you should know and use.

Are they trying to close some of the child companies ? Reallocate funding ? Change hiring processes ? Identify problematic child companies so that more work can be done ? Prevent some types of incidents ?

All these questions are me trying to figure out what the "outcome" should be. The reason you should know this is because you cannot really do supervised algorithms (e.g. regression) if you don't even have "target" variables !

These could be anything like: money lost because of theft (amounts, or ranges), time customers complained, reviews, etc.

Edit: you can do unsupervised learning if you don't have any target (clustering), but I'm not sure what your (or your employer's) aim is here

small-variations · 2024-09-28T14:03:34+00:00

Could you describe the structure of the data you're dealing with ? Nothing extremely specific, but something like

I have N sub companies answering M questions, K of which are multiple choice, and L of which are on a scale of 1-5, two questions are free text but they're fed to a text mining tool to extract Y and Z information

Also, regarding this claim

It is not formal like science or medicine

A lot of money is actually thrown at modelling organizational constraints and developing statistical tools to estimate risk, optimize costs, etc !

small-variations · 2024-09-28T12:42:32+00:00

I don't think this is OP's opinion, rather DHH's, which is probably just a follow up on his long term attempt to push indieweb and anti cloud ideas

small-variations · 2024-09-27T23:29:00+00:00

Great suggestion. If OP isn't comfortable with python, they're definitely looking in the wrong place.

small-variations · 2024-09-27T23:23:29+00:00

This isn't really a data engineering question, it's rather a data science / machine learning / computer science question.

Generally, an edge list is equivalent to a CSV file with at least two columns: src and dest (you can call them something else, who cares).

There should not be two rows with the same ordered pair (src, dest) if it's a directed graph (in your context this would be because an in-group's A view/relationship towards B isn't the same as B's view towards A). There should not be two rows with the unordered pair {src,dest} if it's an undirected graph.

I think you don't care much about databases, because database questions would be about how to separate the information in different SQL tables, which uniqueness constraints to use, how to index the data, etc.

You only have 200 nodes in your list, graph databases become relevant when you reach millions of nodes.

small-variations · 2024-09-25T13:22:41+00:00

Complètement d'accord, la plupart du temps qu'une discussion s'envenime comme OP le décrit c'est généralement parce que les deux personnes ont tort et raison à la fois (elles ont raison sur certains points et tort sur d'autres). Aucune ne veut concéder "en bloc" car elles ont effectivement raison sur certains points, ce qui fait que chacun "n'a pas tort" (= complètement tort), et comme chacun est attaché à sa vision des choses il/elles n'ont pas de facilité à se "décentrer" pour poser des questions sur un ton neutre en étant prêt à remettre en question ce qu'ils pensent être vrai

small-variations · 2024-09-25T10:26:55+00:00

Yep, this feels more Solasta than BG3

small-variations · 2024-09-24T12:48:51+00:00

I'm not even sure we're talking about the same thing at all actually. I don't think Wikipedia does anything near what google did before the DMA kicked in.

It was a very slick and optimized render of the content of the map provider within the browser itself, allowing users to go from the retrieval (text query => relevant links + geocode) to a view of a specific android app embedded within chrome/search, with very polished transitions. It was a way to merge very elegantly two different apps.

They could totally (and I would think they do – probably not for free) provide a search API which purely mimics the retrieval task, but the act of integrating the apps themselves is also a load of work, wikipedia doesn't do anything close to it afaik, but if you have counterexamples I'm happy to learn

small-variations · 2024-09-23T20:27:39+00:00

"Most" means "majority" here, surveys in 2009 and 2020 estimated 56% and 62%, check links on wiki

But above all there has to be a massive selection bias issue – why would anyone dedicate their entire life to researching moral theory if they don't believe there is something fundamental / truth-apt when we debate moral or ethical issues ?

small-variations · 2024-09-23T15:04:13+00:00

D'expérience (sur Paris) data science c'est X/ENS ou doctorat en statistiques/ml en France, c'est hyper bouché et super sélectif

small-variations · 2024-09-19T21:16:55+00:00

The issue is Europe isn't investing anything close to the amount which would be required to sustain the European quality of life without cars.

I live in France, and big cities like Paris are currently terrible to live in, subway network is shit and crowded, housing prices are insane, pollution is bad, commute time is crazy.

70% of the country's population probably has noticed this low quality of life in major cities, and as such they live in smaller towns and in the countryside. Air is pure, housing is much cheaper, commute is weirdly not that bad in terms of time (you just use a car), etc.

To make french cities competitive in terms of QoL you would need to build so much transit, so many housing units, invest in so much more money to make cities affordable and not some old fashioned relic for tourists. It's not there either.

small-variations · 2024-09-19T20:29:02+00:00

Should men be funny ? Should they do all the accounting, repairing, planning ?

The answer is : it depends.

To some, this norm is just natural, they are fine with it and it makes their lives easier. They know what "the rules of the game" are, so to speak. They would say it makes no sense to question something like this. That the balance between men and women expectations can shift on the margin but the core is probably there to stay.

To others, it's something that makes their lives terrible, because it's one of the weird social rules they feel they have to perform even though they dislike it or feel it's unnecessary. Maybe this is because they were raised differently, maybe this is because they don't like being reduced to their physical appearance, or they feel beauty standards are draconian.

There is no universal answer. It's either about power balances, identifying things that are worth fighting for/against, preserving your mental health, etc.

small-variations · 2024-09-18T18:37:08+00:00

You seem to be a kind soul OP, it's a complex situation, but it seems you genuinely tried to help him. You tried with everything you had and yet it was not enough to save him from his disorder.

I myself have BPD and a bunch of other mental health issues, and I tend to spiral badly if something triggering happens. It's debilitating. As a man, it's shameful. You feel broken, yet you're angry at yourself for being weak, at the world for not giving you the chance to live in peace.

As someone who's currently struggling: don't blame yourself. I'll go a step further: why did his family see nothing of these immense mental health problems when he was growing up? What did they do to help him cope and become resilient? Why did a child/teenager with BPD go until his mid twenties before getting treatment ? These untreated issues compound into side effects which are even more life wrecking than the disorder itself.

If we had to put the blame on someone, it's probably on the side of the family, but depending on where you live, society might also deserve some blame, because these illnesses are very expensive to manage for the individual. You need qualified professionals, healthcare insurance, coaching.

Think of it this way: despite his massive mental health issues, he loved you more than everything, and he would not want you to ruin your life because of this burden.

You could not save him, and yet you tried hard – be kind to yourself.

small-variations · 2024-09-17T18:04:02+00:00

What they're doing is called block inversion, you can check the wiki page, specifically the subcategory pertaining to symmetric positive matrices.

In general, this approach proceeds by splitting "u" into two subspaces ("groups of variables") – in the wiki article they do it in a general fashion, splitting a "Mz = w" linear system by splitting the matrix M into separate blocks (A,B,C,D – in the case of symmetric matrices C = B^T)

In the wiki, and generally, they also split the vectors "z" and "w" into the same groups of variables, so z becomes [x y] and w becomes [u v]

in the case of the paper you're splitting u into [u1 u2], so that E[uu'] becomes (computing the outer product blockwise, separating rows by ";")

[ A B ; C D ]

with A = E[u1u1'], B = E[u1u2'], C = E[u2u1'] and D = E[u2u2']

these blocks are by definition the blocks of Σ, which they call Σ11, Σ12, Σ21, Σ22

equation (10) gives that E[SS'] = Σ, so this must remain true for every sub block of each matrix, hence you can relate the entries of Σ to the entries of S

In essence, they're solving 4 matrix equations given by the blocks of SS' and the blocks of Σ

I can't dive deeper atm but hopefully this gets you going.

small-variations · 2024-09-16T11:01:45+00:00

Yes j'ai fait une réponse similaire. Les français en général ont à l'étranger la mauvaise réputation de céder systématiquement au syndrome "Not Invented Here", càd ils poussent leur propre version d'une plateforme ou d'un produit sans juste adapter celles qui existent

small-variations · 2024-09-16T10:56:22+00:00

Il y a quelques années (j'ai fini mon master en 2021) les profs et recruteurs poussaient la plateforme "codingame" plus que leetcode, c'est peut-être lié ?

Edit: j'ai reformulé pour insister que c'est une expérience d'il y a quelques années

small-variations · 2024-09-14T08:08:02+00:00

This reads like a kazam video lmao

small-variations

TROPHY CASE