Tweets - Week 51
Same issue again. Sine waves would be modeling - too much work
eSpeak sucks. Who wrote this shit?
Cloud Speech! Right.
Why is most tts (text-to-speech) code out there based on Deep Shit now?
Speech at its simplest is 1D data. It can be represented by a sum of sine waves - u could extract those base waves through sinusoidal regression. Save those regression results in a DB per each word (how many are there, like 20-30K?) and for TTS, while reading doc per word look up its waves, sum them up, play, repeat.
đĄđĄđĄđĄđĄđĄđĄđĄđĄđĄđĄđĄ
đŁđŁđŁđŁđŁđŁđŁđ„đ„đ„đ„đ„
"Next time some paid liar in the fossil fuel industry insists fracked gas is helping solve the climate crisis, remind them a single @exxonmobil fracking site 'leaked more methane in 20 days than all but 3 European nations over an entire year"https://t.co/mgCvn7eQay @commondreams
— Mark Z. Jacobson (@mzjacobson) December 18, 2019
(Of course according to Time for Change model, both Clinton and Bam had a major advantage going into their elections -the incumbent was unpopular due to his delivery-, but, at least they didnât lose like Gore)
In the past 30+ yrs weâve seen the opposite (of Corb) from the left leaders - Clinton, Blair, Bama - suave, hipters who can get elected, but cannot deliver left leaving an electoral disaster behind (it is the policy execution that has staying power, not lip biting). Corbyn was stiff who probably could deliver left. Ideally u want both (speak left, be a closer, get elected, then deliver left).
Basically the motto is get elected, somehow, then deliver left, ppl will feel the diff and vote for you. Parties who did not do that have been disappearing - we talk a lot abt US, UK, how Dem equivalents are miserable there, but in Germany too, bcz of âThird Wayâ Schroder SPD cratered. Clinton, Blair hipsterism will only carry you so far.
#ukelection
âTaiwan has massive amount of motorcycles contributing to high level of particulate matter (PM2.5), & air quality continues to deteriorate. #zeroemission scooter to reduce air pollutionâ
The shipping industry is planning its own $5 billion climate fund https://t.co/poC94WXI1f
— Bloomberg Energy (@BloombergNRG) December 18, 2019
Hydrogenious LOHC Technologies spoke at Bundestag, on H2
There is no easy way of fighting inflation.
âVolcker raised rates too high during the 80s, he hurt the economy, hurt working peopleâ.
[geek] Noticed that didnât you. Very good. Yes, it looks like an objective, a target. Even better that is a convex target which have certain guarantees in opt. So now we can calculate the best weights thatâll give the minimum internal correlation.
Hell 1 could use this procedure to filter out unwanted stocks even. Start with many, many symbols and the optimization could zero out some, indicating they are no good, so they are left out [/geek]
â[geek] I noticed the w'H w
from optimization - it looks like a
objective func [/geek]â
đ
â@GroverNorquist
President Trump is right to fight against expanding the electric vehicle tax credit. Taxpayers shouldnât be on the hook for a subsidy for Californiaâs elite. Thank you @realDonaldTrump for defending American taxpayersâ
5700 yrs ago? Thatâs like yesterday. What genius is managing ur science content?
âStone Age chewing gum holds clues to the life of a young girl who lived 5,700 years agoâ â CNN
Big news from @zbMATH! Zentralblatt (the worldâs most comprehensive and longest-running abstracting and reviewing service in pure and applied mathematics) - will be Open Access from 2021!https://t.co/YzYUhNbf99
— European Maths Soc (@EMSnewsletter) December 17, 2019
This hydrogen-powered truck will shrink mining's footprint - and there will be many many more to come âŠ@epirocgroupâ© âŠ@Svemin_miningâ© https://t.co/1QabRtl8Bc
— William Blomstrand (@william_sw) December 17, 2019
âXi suffered another serious blow in November, when The New York Times obtained more than 400 pages of internal Chinese documents concerning the mass incarceration of ethnic minorities â particularly Muslim Uighurs â in the Xinjiang region. Only Chinese government insiders had access to such sensitive materials, suggesting that Xiâs political enemies may have deliberately leaked them to the Western press in order to undermine his international standingâ
MIT prof talking smack on quasi-Newton methods. Dude you are so totally wrong.
How strange, I thought all of Europe would build electrified roads like Sweden... I guess not... kÀmpa Sverige - vi Àr ensamma mot vÀrlden men vinner sÀkert! @moderaterna @kdriks @VolvoTrucks @ScaniaSverige https://t.co/IEvpe2VKdC
— Niklas Holming (@NHolming) December 17, 2019
What is a low correlation portfolio and why is it good?
Itâs simple - prices form a time series, then low or negative correlation would mean one is down when the other is not, vica versa. So if one instrument took a hit, the others would save you. The âbadâs cancel out, and, if tests show, overall, the portfolio generates returns, we are a-ok.
Correlation between two series is known to many. How about correlation of 3 series or more? For that, there is the correlation matrix. Say we have Apple, IBM, and Exxon,
import pandas as pd, pandas_datareader.data as web, datetime
start=datetime.datetime(2001, 1, 1)
end=datetime.datetime(2019, 11, 1)
insts1 = ['AAPL','IBM','XOM']
df1 = web.DataReader(insts1, 'yahoo', start, end)['Adj Close']
ret = df1.pct_change()
H = ret.corr()
w = np.ones((1,len(insts1))) * 1./len(insts1)
print ('score', np.float(np.dot(np.dot(w,H), w.T)))
score 0.6021293830308531
Correlation matrix of the prices gives H, then w'H w
gives a single
score to judge to portfolio by. w
is the weights, how we allocate /
distribute money to each instrument. For simplicity we picked
equal. 1/3, 1/3, 1/3.
In this example we see intra-correlation is high (1 would be highest). Can we do better? There are two tech stocks in there, AAPL and IBM. How about we replace IBM with a retail-ish tech stock? Say Amazon?
insts2 = ['AAPL','AMZN','XOM']
df2 = web.DataReader(insts2, 'yahoo', start, end)['Adj Close']
ret = df2.pct_change()
H = ret.corr()
print ('score', np.float(np.dot(np.dot(w,H), w.T)))
score 0.548369645733854
The correlation went down. If the overall returns prove (backtest) better, this is the better portfolio.
Ideally u want correlation to be a big fat zero. These were just random symbols off the top of my head
The fight. âLearningâ statistically as in deep nets vs. formulating the problem somehow starting from principles⊠A similar version of this fight actually took place between Chomsky and Norvig (of Google) a while back on natural language processing. Chomsky does not like ML methods. Iâd say he is right on this one.
(Chomsky knows a thing or two about stats u see, hard sciences and experiment, so can speak on such issues with some authority)
A lot of the successes of the recent AI methods (which are great and I applaud) are in the category of weak AI. This is the first level of pattern recognition - especially for to/fro conversion type tasks if you remain in the same domain, e.g. speech sounds to text of those sounds u can do some damage, the âAIâ methods can work. But interpreting that speech, translating its ideas are still far out of reach.
We also talked about clean formulas vs. constants before (which DL ppl call weights or coefficients) in physics context. Basically in that formula vs. weights trade-off, DL chose all weights, all the time. Their âmodelsâ such as they are, can have millions of weights. This is the price you pay for not burning brain cells on formulating, modeling a problem.
Iâve become an expert extracting code from Scipy and flattening it (so everything per feature is in a single, clean file). Any feature, I do it under 1 hour flat.
Sign of incoming trouble - the diff between YoY hiring and wage growth starts to widen. The widening gap is a forward indicator. It makes sense from a macro perspective, in late cycle labor conditions tighten, wages increase, firmsâ profits start to go down, also their hiring starts to decrease, on and on it goes until the pop
#lateCycle
Just realized zombie movies hark back to forager-like conditions too (you try to evade, run, hunt, gather), they create these conditions in a modern albeit in a post apocalyptic backdrop. Instead of wild nature u get broken arch (forage 4 food in abandoned supermarket) and ppl who are now monsters (wild animals).
You see, tech, white-collar world is not only about inbread centrist mamaâs boys. They have a âleftâ too, and it is in the free, open source crowd.
Removed the GMaps static map api integration đ€ź
Offline mapping done; Open source mapsforge allows reading of reprocessed (also free, open) OSM maps. I interface to their data, dump parts I need through their OSS, the rest is offline Py.
Uâll be asking for these during the zombie apocalypse my friend. I might give them to u in return for some shotgun shells.
âCompany aims to produce worldâs first fossil fuel-free steel
In the small town of Lulea in northern Sweden, SSAB has teamed up with Vattenfall and LKAB to build a pilot plant for the worldâs first fossil fuel free steel-making process, which will replace coking coal with hydrogen, and if successful can reduce Swedenâs total carbon emissions by 10%â
Realist interpretation of physics can be based on âhuman interpretableâ constructs and still be real - meaning stuff that exists wout observer being there. I think the problem with these comments is its use of âcommon senseâ and âeverydayâ. What is the elements, the clay from which these comments are formed? For the non-technical they are springs, pulleys, balls, wind, elasticity, force, movement, stuff rotating around other stuff (atoms, or planets) or simulacra (easily relatable these days thanks to movies).
The âeverydayâ items for STEM ppl are graphs, matrices, DEs, the interplay btw the continuous and the discrete.. Graphs can be directed, non-directed, some algorithms can work on them, in various speeds, like shortest path, minimum spanning tree, etc.
This is important, because you can construct a reality from these structures. Like a game - and the root of the game would be a graph. Or a probability distribution (needs pseudorandomness knowledge which isnt really random), still real, same for everyone.
Iâd say realists vs crackers are divided halfân half these days, among those who matter⊠So the former group is nothing to be dismissed.
âThere is still something so radical in quantum physics that we cannot translate in our spontaneous everyday ontology and I think all these theories try desperately to translate it back in some kind of understandable for our common sense ontologyâ â Zizek
Because #NANO is objectively better. By any measure. Send me 50c in bitcoin. I can send you 50c in #NANO 100 times before your 50c btc even clears. It ain't rocket science. One is better than the other. Peer pressure just prevents you from admitting it đ https://t.co/PVxCb19QRU
— RaiStoneFan (@CryptoKash4) December 16, 2019
Peak start-up
Bruxelles imported Berlin hipster madness! Table next to me talking âinfluencersâ, 1 guy is 1 of 4 full time staff/cofounder of houseplant start up in Berlin... complaining about work/life balance (he works on weekends), they make the world better and he doesnât like plants. #ffs
— Karen Melchior đ đȘđș (@karmel80) December 15, 2019
NYT being a corporate slut. Related.
âNikeâs Fastest Shoes May Give Runners an Even Bigger Advantage Than We Thoughtâ
Trump does the uncouth mixed with (some) style. It is also directed to something, so ppl think âhe is tearing shit down for meâ. Itâs a tough act though. No wonder his popularity is low: -11% net pop according to Gallup.
They are not people. They are representatives.
The system is unnatural 4 sure. Very few people providing leadership to many on diverse topics is weird. This happens because of modernity which itself is unnatural.
But given that system, representative needs to have more. Say JFK - guy was chasing skirt, humping anything that moved. Does it matter? Well, he was fuckin so many bitches an East German agent slipped in there, now you have a national security problem. Cant do that.
âDoes it matter for representatives to be uncouth, crass? They are people after allâ
Emilia Clarke looks good in GoT when she doesnt make too many facial expressions. In real life, the actress, when she starts moving those eyebrows, oh-boi. Keep them still girl.
She looks like a nice, lively person tho, dont mean to nag
Obviously the leader, the representatives ppl elect need to be respected (along, ahem, those SNP seats, 48 was it? đ¶). It all works out in the long run.
#ukelection
FDR didnât win on the beauty of his âideasâ. 1st he almost didnt get the nod but party machine thought he was a loser, easily controllable so they let him. Then he won the general bcz the incumb was obscenely bad. Once in power though, he enacted good policies which ppl felt through their pocketbook, and with a general feeling of gov being on their side and they voted for him, again and again until he died.
First theory still holds - EU and Japan (bcz of their banks / corps) fell into debt deflation territory post 00, w low rates, slow growth.
In US during â08 crisis the FED took the toxic assets off the banksâ balance sheet fixing their debt problem so they started lending. EU / Japan did not follow the same course.
â[Paraphr] There are three theories of recent meager growth [and he thinks he debunked the 1st]â
Will we see the formation of an Anglosphere after Brexit? US + UK + AUS plus maybe Japan? All seafaring nations.
I dont think China will be able to play for the big league. If India turns pro US there wont be many other powers left. EU + RU rubs the Eastern states the wrong way, hard to form.
Global summer temperature in 2019 was record high - and without el Nino. How can #cop25 ignore the fact that changes are coming faster and will leave the young generation with risk of greater climate problems than we to day can imagine. #cop25 looks like a failure. pic.twitter.com/vs7uNxi8nm
— Jesper Theilgaard (@JesperTheilgard) December 15, 2019
Sun Yat-Sen. Why do u never hear of this guy? Itâs always Mao, Mao, Mao. This dude gave some thought to democracy in Chinkstan.
âCity of London, not to be confused with London is like a city-state within the greater city of London, within England, within the United Kingdom, within the Commonwealth. This city acts as a sort of central location to conduct business with all of these British tax havens in a way that is far too complicated to get into [right now]. [For rich people] London [is a place] to park their money in one of the most established and secure financial centres in the world [and] they also get access to a world-class tax offshoring network that they can conveniently control from the City of London. This explains another anomaly with the economy of the UK it is the worldâs seventh largest economy by GDP but it attracts the second highest rate of foreign investment in the worldâ
Tiggers be flailing on IRel - the odd behaviour is partially due to a âlittle Putinâ strategy. Little Putin strategy takes a page out of Putinâs playbook ; you find areas, regions where the other side does not want to be involved completely, so you get involved 100% bcz u know the backlash wont be severe, so u cause some discomfort for the other side. Like Russia invading Georgia, the West doesnt like it, but will not engage militarily, it doesnt worth that much to them, so u look tough. Tigger obviously cannot do this at the scale RU can, thatâs why I call it the âlittle Putin strategyâ.
Itâs a way of looking tough - but in fact, itâs like acting like a little bitch isnât it? Engaging in something when your security isnât truly at stake, against someone who is not a threat, and usually not in the same class. Just to get some headlines?
At least RU can argue it has some strategical reasons to be pursuing their Putin strategy, for TR, already a Western ally, the little Putin strategy makes zero sense.
U could say the dollar is strong. Since 2001 DXY (dollar vs a curr basket) mostly hovered btw 74 and 95, it is now closer to 95.
Ok.. there is some inflation: 2.0% YOY.
Next Labour leader? The psycic says Yvette Cooper.
But I think the psycic really wants a centrist ;)
#ukelection
BJ vs. Corbyn - who was the better oaf?
Exactly.
From the debate - look at those glases on Corb. He looks like the cranky high-school headmaster who has a few dead bodies hidden in the shed. Itâs all about rough perception. Imaging. Remember HW Bush looking at his watch during debate with Clint. Cant do that.
#ukelection
We have yet to see anyone be judged on the repercussions of Brexit. Hopefully that time arrives soon.
#ukelection
If Corbyn was decisive one way or another on Brexit heâd have a chance. They had to be decisive, and scare people - with truth (also offer some way out if Brit culture codes have such a thing). U need to hire expert politico messagers.
#ukelection
I wouldnt make a big deal abt that. If incumbent face plants, econ going bad and a Labour leader who can sell, âcloseâ they will come back.
#ukelection
âWorking-class voters didnât trust or believe Labour. We have to changeâ â The Guardian
âWhat the world needs is a big reset of the system where leveraged firms default, solvent firms pick up the pieces and get to earn excess returns due to their past fiscal sobriety. Since we live in a democracy, that wonât happen, instead we will have extreme fiscal stimulus in order to kick the can further down the roadâ
The Sea Angel - wow.
âGoblin Sharks are known as âliving fossilsâ because theyâre the only living species of a lineage that has existed for 125 million yearsâ
â@Jkylebass
Chinaâs Companies Binged on Debt. Now They Canât Pay the BillâŠThis wonât be a problem thanks to the MSCI and Bloomberg Indexes adding China. More suckers being brought into the Chinese scheme of roach motels. Investors will never get their $$ backâ
We live in interesting times. It gives rise to a strange new vocabulary. Like issue-non-issue. Or in finance the good news that is bad news. Watch a finance show u hear them argue all the time âthis was good news, but is good news good news or bad news đ¶ [for the stock market, bcz good news can cause FED to raise rates thatâll lower the laughing gas, causing the market go down]â.
BJ succeeded in painting others as the ones stopping Brexit, âthe will of the ppl (meaning the shit cake he previously sold them on)â and rode that to victory.
Brexit.. What an issue-non-issue. US cons could only dream about something like this. It keeps on giving.
#ukelection
#medicalDebt #cnbc
The fin advice part is really dumb but at least they talked abt the problem
â@PGourevitch
Imagine having a passport that allows you to move freely between, live in and work in 28 countries, including many of the worlds most affluent, with excellent free health care and social services wherever you go & voting to tear that passport up and be stranded on an islandâ
#ukelection
Ladies & gentlemen. What we are seeing today in Norway is the start of a complete revolution of the global shipping industry. The cocoon of infrastructure for compressed as well as liquified #Hydrogen. No other way to decarbonise shipping. Tack @EnovaSF đżâ»ïžđłđŠâŽđŠđąđŠ #IMO2020
— William Blomstrand (@william_sw) December 13, 2019
I am definitely studying this subject irreverently (per Feynman) #optimization
What happens if, in a society, ppl who do not buy into the national narrative, are culturally different and focused in one region? It can happen, see Gellner who wrote the book on nationhood,
People can be categorized as tall and short, as fat and thin, dark and light, and in many other ways. Clearly, there is simply no limit to the number of ways in which people can be classified. Most of the possible classifications will be of no interest whatever. But some of them become socially and politically very important. They are those which I am tempted to call entropy-resistant.
A classification is entropy-resistant if it is based on an attribute which has a marked tendency not to become, even with the passage of time since the initial establishment of an industrial society, evenly dispersed throughout the entire society. In such an entropy-resistant case, those individuals who are characterized by the trait in question tend to be concentrated in one part or on the totality of society. The rest of this argument can now easily be anticipated: entropy-resistant traits constitute a very serious problem for industrial society.
Well, noone should run these ppl over, displace them, or destroy them. Theyâd need their own local governance, Scots, the Irish, or the Uighurs.
We are in 'accelerating investments' phase by Germany into hydrogen, #fuelcells and #powertogas (electrons into H2). #energytwitter needs to get beyond the 'but it's inefficient' thinking. Molecules cut deeper in decarbonization of multiple sectors esp industry + transportation https://t.co/zomDLxZVXH
— Garry Golden (@garrygolden) December 12, 2019
@CodeWisdom
ââŠthe purpose of abstracting is not to be vague, but to create a new semantic level in which one can be absolutely precise.â - Edsger W. Dijkstra
$749 million. Seriously.
â@AppiaPay
ââŠUber paid $749 million in credit card processing fees in 2017.â. Every day #businesses are paying substantial #CardFees to financial gatekeepers and middlemenâ
BREAKING: In a major victory for privacy, a federal court ruled today that the governmentâs suspicionless searches of international travelersâ smartphones and laptops at airports and other U.S. ports of entry violate the Fourth Amendment. pic.twitter.com/SJDIERJdV5
— ACLU (@ACLU) November 12, 2019
#China #FCEV Jan-Nov sales at 1,337, +375.8% YoY.
— Moneyball (@DKurac) December 12, 2019
Production at 1,426, +398.6% YoY.
(CAAM) pic.twitter.com/tUSsRnJ5AA
âIn research published in Nature Communications recently, scientists from UNSW Sydney, Griffith University and Swinburne University of Technology showed that capturing hydrogen by splitting it from oxygen in water can be achieved by using low-cost metals like iron and nickel as catalysts, which speed up this chemical reaction while requiring less energyâ