@HalvarFlake@mastodon.social avatar

HalvarFlake

@HalvarFlake@mastodon.social

I do math. And was once asked by R. Morris Sr. : "For whom?"

Accidental two-time founder. Mathematician by education. Infosec luminary (has-been?).

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HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

Fun paper that shows that gzip-based kNN sentence classification can outperform BERT.

https://aclanthology.org/2023.findings-acl.426/

Understanding that every predictor is a compressor and vice versa was the most important insight I learnt since 2018.

Also: Concat/compress with a SotA compressor is a great way to measure similarity between two pieces of data - an old insight, as Steph Wehner did gzip based malware clustering in the early 2000s...

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

My 4 year old hit 30km/h in his bike going downhill, and I am terrified and wonder how to slow down his bike.

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

After doing a NGL-style AMA on Twitter, and really disliking the platform, I am almost tempted to write an app that allows such stuff for Mastodon.

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

"While corporate Europe obsesses about export markets, the recent successes of others flow from prioritising demand at home. The power of US president Joe Biden’s Inflation Reduction Act comes not from discriminating against imports, but from its success in making everyone expect an imminent, huge and profitable market for green technologies in the US, in which they would like to have a share."

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

TIL: "Although it may sound childish and comical, the word 'goof' is considered perhaps the worst insult" in the Canadian underworld,"

bert_hubert, to random
@bert_hubert@fosstodon.org avatar

I would also like a pony. EU requirements for detecting child sexual abuse material or the solicitation of children. Article 10 of https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=COM%3A2022%3A209%3AFIN&qid=1652451192472

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@bert_hubert so i am pretty sure I know how you can build a privacy-preserving approximate nearest neighbor search, which would cover known CSAM material... For unknown, would an in-device NN that creates an embedding work?

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

It is with a very heavy heart that we shut down the http://run.prodfiler.com and http://try.prodfiler.com infrastructure today. Sniff. It served us well, and it is something the entire team was proud of. It provided the best continuous profiling experience in the industry for the past 24 months, and kept on humming along from November 2021 without complaining while we were busy porting things to the "Elastic Stack".

It was good infra, a good product, and I am proud of the team and what we built.

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@ljrk :-)))

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@ljrk yeah, we are going to release profiling as GA, likely in 8.10.

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@ljrk so the first step is Profiling as standard feature for any commercial ES deployment. Then integration between APM, Logs, and profiling. Then profiling of other-than-CPU events (iops, page faults etc).

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

I think this is very relevant to a lot of issues regarding child-rearing.

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@ljrk good stuff!

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

In an industry where stimulant use is rampant, I sometimes quipped "my experience with working with people on stimulants is that they revert to being 20 year old: attacking the wrong problem with immense energy, often missing the forest for the trees".

This paper seems to confirm my quip:

https://www.science.org/doi/10.1126/sciadv.add4165

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

Given the speed and volume of AI reaearch, it almost seems prudent to wait & see until things calm down a bit.

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@dave_aitel why lol? :)

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

Dear performane Fediverse,

is PREFETCH as an instruction honored or ignored on modern CPUs?

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

Non-actionable life advice: Try to spread out major life events - kids, death of parents, major career events, relationship stuff, pandemics - over large amounts of time-area.

Resilience means the ability to deal with a given quantity/intensity of adverse events over a given timeframe. Highly concentrated impact is much harder to deal with than evenly distributed impact.

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

Food chemistry folks: When mixing oil / vinegar with a few strawberries in a blender, the strawberries seem to act like an emulsifier/ stabilizer, similar to a dash of mayo (egg lecithin).

What's going on here, chemically?

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

https://www.theguardian.com/commentisfree/2023/may/26/jeff-bezos-money-lauren-sanchez-europe is a funny read, not least for the neologism fauxlantropy.

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

If the current inflation is not based on a wage-price spiral, and interest rate hikes normally reduce inflation by weakening economic activity to reduce labor bargaining power ...

... how are interest rate hikes going to stop inflation that is caused by companies realizing they can hike prices to obtain fatter margins?

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

This is a very good read: https://media.defense.gov/2023/May/09/2003218554/-1/-1/1/JOINT_CSA_HUNTING_RU_INTEL_SNAKE_MALWARE_20230509.PDF

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

I am personally fascinated by "adjoint optimization in CFD", e.g. people using autodiff on entire physical simulations to improve shapes of objects.

At the same time, it seems comparatively rarely used in industry, e.g. most design processes only perform forward simulation.

Does anyone here have an idea why that is? Boost for reach please...

freddy, to random
@freddy@security.plumbing avatar

@HalvarFlake do I remember correctly that you tried an app (subscription?) for a thing that tried to combine multiple messengers like WhatsApp, Signal etc. - did it work? Can you remind me of the name?

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@freddy I haven't tried any meta-messenger in earnest since meebo, tbh...

HalvarFlake, to random
@HalvarFlake@mastodon.social avatar

There's a lot of microservices hate, but there are also terrible balls of yarn. It reminds me that many orgs are not good at engineering.

A few rules that have served me well:

  1. architect your software, have a diagram.
  2. centralize responsibilities in the diagram.
  3. not every box in that diagram needs to be a service, some boxes should be shared libraries
  4. conversely, not every box should be a shared library
    ...
HalvarFlake,
@HalvarFlake@mastodon.social avatar

...
5) There are two primary reasons to make a box a service: you need parallelism for a box that one machine cannot do, or the box is used by many other boxes and manages state. (Plz reply if you know other good reasons, my list is incomplete)
6) if you do your work right, making a library into a service and vice versa isn't a huge endeavor.
7) the reason monoliths get a bad rap is because people throw sensible abstraction layers away and get a terrible balls of yarn
...

HalvarFlake,
@HalvarFlake@mastodon.social avatar

@adrianco @PlaneSailingGames @stilkov so I forgot to read that book, and will fix that :-) thanks!!

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