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botexpert

51 karma · joined October 2, 2016

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botexpert··on How to Avoid a Post-Antibiotic World
It's such a shame we used them all on livestock. We raise around 60 billion land animals every year and probably more than 90% is being given last-line-of-defense antibiotics for faster growth. Perfect pool for some unbelievable evolution of antibiotic resistant bacteria, and yet we want to ban antibacterial soaps and other minor things.

But, at least the stakes and muttons and whatevz can be enjoyed.

botexpert··on Stanford Natural Language Parser
It does. left-to-right linear time parsing is the idea that's about 15 years old and turned out to be most efficient and most performant.
botexpert··on Spaced repetition
I used this to memorize/train problem solving (applied to compsci problems).

I solve a problem at SPOJ [1], Codeforces [2], or project euler [3] or other similar sites. Put it as a card in Anki and revisit it after it appears again.

Solving the problem for the first time requires some research into algorithms and methods (took as much as 4 hours when I was just starting), and solving it again is remembering the tools.

Nice thing is that the evaluator tells me if I'm right or wrong, or if it takes too much time I've obviously forgotten how it's done.

I unfortunately stopped doing it as most problems take more than a minute to solve (each needs about 10-150 lines of code [depends on problem complexity]) and I eventually had to do 10-20 per day. At a particular moment in my life I didn't have time. I'm thinking of starting it again though as I've noticed my coding was much more fluent.

[1]: http://www.spoj.com/

[2]: http://codeforces.com/

[3]: https://projecteuler.net/

botexpert··on How and why did humans domesticate animals?
apologies, hn, shadowbanned me for my reply.

> What animals are fed soy beans, hopefully only pigs and not ruminants (grasses/seeds eaters)?

50% of worlds meat is raised using intensive animal agriculture. liquified soy for the chickens, fishmeal and soymeal for growth and finishing of livestock.

brazilian beef which is practically their biggest export, along with soy, eats it in ridiculous amounts, so long amazon rainforest.

given the amount of energy that is put in the process for producing meat and dairy, it's ridiculously huge compared to what can be done with the land in other way. most efficient production is of chicken flesh and that's already being done on ridiculous scale (about 50 billion of chickens every year in USA - other issues appear then).

IMO raising 60 billion land animals for food, given our current technological, moral and materialistic status is highly irrational, irresponsible, inefficient and ridiculous.

botexpert··on Big Banks Are Putting Rain Forests in Peril
Milk cows carry a baby every year which puts more pressure on metabolism needs. Milk is more energy and water inefficient than meat ( same scale comparison).
botexpert··on Big Banks Are Putting Rain Forests in Peril
I'm vegan but I'd never make stuff up. Notion of food being unhealthy or healthy is borderline orthorexic. Saying that red meat is unhealthy is vague. There's no concept in science that categorizes food as either healthy or unhealthy. There has been no strong evidence that diets containing meat are unhealthy.

As much as I'd like everyone to severely decrease their meat consumption and eventually stop using all animal products I won't scare them with shaky facts.

Would USA population benefit from eating less food, definitely. Are epidemiological studies strong enough evidence for diet related health benefits? No.

HN is full of orthorexic hivemind demonizing ingredients like sugar, cholesterol, fat, meat or whatever.

There are plenty of valid, rational reasons to stop eating meat. If one is in good health then health is not a valid reason.

botexpert··on How and why did humans domesticate animals?
and do so quite inefficiently.

the only thing animals do is save time, when we were naked and running the meadows, other animals collected nutrients for us, stored them in the bodies and saved us extreme amounts of time.

currently, most of the animals we eat are just inefficient in converting edible to edible, soybean to meat. we're filtering food that we grow for them just so that we can eat food.

botexpert··on Elm for the Front End, Right Now
why not flowtype/typescript+js es6+react+redux/mobx?

currently a pretty nice reactive mobx-state-tree is on the frontpage of hn.

botexpert··on Elm for the Front End, Right Now
Haskell, ML langs.
botexpert··on How Quid uses deep learning with small data
why not vowpal wabbit? fast text is practically a ad-hoc version of mathematically proven vowpal wabbit?
botexpert··on Global warming: The state of the climate in 2016
https://www.theguardian.com/world/2016/jun/20/chinas-meat-co...

This too, additional to other links. Meat consumption has a huge carbon footprint.

Their government institutions see the problem and invent guidelines. We'll see the same stuff from the USA, most likely never.

botexpert··on Global warming: The state of the climate in 2016
As much as media and schools indoctrinate the idea that papers waste most trees, it's not true.

The biggest percentage of Amazon rainforest deforestation is for the livestock industry. The beef that USA and Europe gladly import, and the soybean that Brazil gladly exports.

Palm oil in Asia also.

Consumers just have to stop voting with their money for oblivious and blind short-sighted products. Politiciancs obviously will never tax beef or Lays chips.

botexpert··on Real-Time Stock Indices Futures
> and now we know 50% of the country is stupid enough to go along with that

this kind of superiority isolationism leads to the problem. it lead to brexit and to the election of many right-wing politicians in european countries.

when a large mass of people is isolated and unrepresented, they will strike.

botexpert··on Donald Trump is the president-elect of the U.S.
Well, it was quite clear that DNC turned against Bernie from the start of the campaign for the primaries.
botexpert··on Soylent Thinks It Found What Was Making People Sick: Algae
There are good quality studies on vegans showing pollutant free omega 3 algal source works extraordinarily well. [1]

Keeping the product vegan is an image choice that many similar companies take.

[1]: http://www.clinicalnutritionjournal.com/article/S0261-5614(1...

botexpert··on Reservoirs are contributing 1.5% of global greenhouse gas emissions
Methane is about 25-100 times more potent than CO2. Nitrous oxide about 300 times than CO2.

Although, the biggest worry is the stored methane. [1]

The amounts stored are equivalent (in CO2) to about 20-35 years of human activity (2014 CO2 output). If that gets quickly released, who knows what will happen.

[1]: https://en.wikipedia.org/wiki/Arctic_methane_emissions

botexpert··on Soylent halts sales of its powder as customers keep getting sick
Never said I consider a Soylent only diet proper. I have no opinion on that.

Milk is in our diet for several thousand years, not millions.

1. There's also a lot of people who ate balanced meals and kept weight. Drinking that much milk has some unwanted stuff in it - like IGF-I - which can cause cancer in those huge amounts.

2. Maybe soy, but that's a side-effect of the dairy that uses it not for the sake of human consumption. But it's highly likely the soy used is the one for human consumption, which would remove the necessary subsidies.

botexpert··on Soylent halts sales of its powder as customers keep getting sick
I've dropped the idea that IGF response is something I need in my life. Milk is ideally formulated to feed babies that need to grow into gigantic beasts.

It is also a very inferior product made with zero genetic engineering. Just silly crossbreeding until the cow has big enough milk gains.

Don't see how it's, from a nutritional or health perspective, superior to Soylent.

Milk is also super cheap because it's heavily subsidized through taxes. I'm not saving idiot entrepreneurs by buying their unsustainable products.

botexpert··on Soylent halts sales of its powder as customers keep getting sick
Ate about 50 bars and 10kg of Soylent, didn't feel a thing.

Five of my family members ate some amount too, and seemed fine.

How are they sure people aren't misattributing this to something else, or just being nocebo about it after the first news reports came?

I did have diarrhea a couple of times during last 5 months but why should I attribute it to Soylent?

edit: downvoters, if you have any information I don't know, please reply so I don't look like an idiot.

botexpert··on Microsoft Cognitive Services
There's not really that much assumption. Given the fact that good and simple linear time algorithms exist for decades it's very unlikely that they use some ridiculous permutation enumeration algorithm.

Even a Microsoft Research project has a fairly complex reductions implementation of a POS tagger that is blazingly fast and production ready (learning to search interface). [1]

[1]: https://github.com/JohnLangford/vowpal_wabbit/wiki

botexpert··on Microsoft Cognitive Services
Weird because POS tagging takes linear time in the number of words.
botexpert··on Probabilistic Programming
this stuff existed for decades and it hit a wall.

sampling is slow.

general AI needs structured prediction. yes, graphical models can do that (HMM, CRF etc.) but inference starts to get slow and special case implementations are required for different domains. [1]

I see no way for someone getting automatic inference and training for [1] with a probabilistic programming language.

given the new deepmind paper on discovering shortest path algorithms, it's quite clear that structured predicition assisted by deep networks works quite well (this was demonstrated by a vast array of work) and graphical models represented by probabilistic programming languages are far away from being that successful.

[1]: http://www.philkr.net/home/densecrf

botexpert··on Kodak Ektra
It's animal leather, at least that's what can be concluded from a quick Google search.
botexpert··on Kodak Ektra
I'm a huge fan of customizable camera firmware. Playing with software controlling visual input brings me joy, have bunch of cameras and lack of leather is not a problem at all.
botexpert··on Kodak Ektra
To me it's a huge drawback and makes it a no buy. No way I'm going to vote with my money and award them for using inefficient, unrecycled, inferior material instead of abundant recyclable non-animal sourced material.

Edit: Thanks for the flags and downvotes, hate is so fresh here.

botexpert··on Virus stole poison genes from black widow spider
My claim is a bit of a stretch, 37% may be attributable. Mechanistic cause is still a bit shaky.

G C Buehring, H M Shen, H M Jensen, D L Jin, M Hudes, G Block. Exposure to Bovine Leukemia Virus Is Associated with Breast Cancer: A Case-Control Study. PLoS One. 2015 Sep 2;10(9):e0134304.

G C Buehring, H M Shen, H M Jensen, K Y Choi, D Sun, G Nuovo. Bovine leukemia virus DNA in human breast tissue. Emerg Infect Dis. 2014 May;20(5):772-82.

K Alibek, A Kakpenova, A Mussabekova, M Sypabekova, N Karatayeva. Role of viruses in the development of breast cancer. Infect Agent Cancer. 2013 Sep 2;8:32.

J Akhter, M A Ali Aziz, A Al Ajlan, A Tulbah, M Akhtar. Breast cancer: is there a viral connection? Adv Anat Pathol. 2014 Sep;21(5):373-81.

G C Buehring, S M Philpott, K Y Choi. Humans have antibodies reactive with Bovine leukemia virus. AIDS Res Hum Retroviruses. 2003 Dec;19(12):1105-13.

J S Lawson, B Heng. Viruses and breast cancer. Cancers (Basel). 2010 Apr 30;2(2):752-72.

(Author unknown) Bovine Leukosis Virus (BLV) on U.S. Dairy Operations, 2007.Veterinary ServicesCenters for Epidemiology and Animal Health. APHIS Info Sheet.

J F Ferrer, S J Kenyon, P Gupta. Milk of dairy cows frequently contains a leukemogenic virus. Science. 1981 Aug 28;213(4511):1014-6.

G C Buehring, P M Kramme, R D Schultz. Evidence for bovine leukemia virus in mammary epithelial cells of infected cows. Lab Invest. 1994 Sep;71(3):359-65.

botexpert··on Virus stole poison genes from black widow spider
Similar to bovine leukaemia virus causing around 37% of breast cancer.
botexpert··on Numerai – A hedge fund built by a global community of anonymous data scientists
Knowing what features represent is an advantage but isn't necessary. At least that's what nn research shows. But currently a lot of data of required for good representation learning. Ensembling also works, or can work, and it seems that's what they're doing. Although it doesn't look like datasets are large enough for NNs out that ensembles are large enough for good prediction.
botexpert··on LightGBM – A fast, distributed, gradient boosting framework
10-20 year old methods implemented properly. Amazing.
botexpert··on What has happened down here is the winds have changed
Did it turn out that research in the book is flawed or not reproducible?
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