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Tag Archives: functionals
http://video.ted.com/assets/player/swf/EmbedPlayer.swf Thank you, steel manufacturing companies, and thank you, chemical processing companies, for giving us the time to read. —Hans Rosling Totally good point about how the mechanisation of the rich world has allowed us to have so many professors, … Continue reading
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February 19, 2012
Tagged average, carbon emissions, dimensionality, economic inequality, economics, elbow, energy consumption, environment, evolution, functionals, global warming, hotness, industrial revolution, kink, laundry, mechanisation, poverty, progress, sex, sex appeal, sexiness, statistics, sub i sub j, values, variables, washing machine
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Sub i, sub j
I hope I can say this in a way that makes sense. One kind of mathematical symbology your eyes eventually get used to is the “Σum over all individuals” concept: Yes, at first it’s painful, but eventually it looks no … Continue reading
Posted in Uncategorized
Tagged business metrics, chemistry, collapse, corpora, corpuses, functional, functionals, generalise, generalising, generalize, generalizing, geography, homo economicus, imagination, marginalisation, marginalization, mental ecology, operator theory, population, probability distributions, quantum mechanics, racism, sexism, specificity, specifics, statistics, stereotypes, sub i sub j, thinking
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With the the increasing availability of complicated alternative investment strategies to both retail and institutional investors, and the broad availability of financial data, an engaging debate about performance analysis and evaluation is as important as ever. There won’t be one … Continue reading
Measure: Sizing up the Continuum
For those not in the know, here’s what mathematicians mean by the word “measurable”: The problem of measure is to assign a size ≥ 0 to a subset of ℝ. In other words, to answer the question: How big is that? Like, how big … Continue reading
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Tagged axiom of choice, ℝ, ∞, big, continuum, Dedekind cut, functionals, G. H. Meisters, Henri Lebesgue, infinite, infinity, math, mathematics, maths, measure, measure theory, real numbers, Richard Dedekind, set function, set theory, size, the continuum
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A OneLine Viewpoint on Trading
Given a timeseries of one security’s pricetrain P[t], a lowfrequency trader’s job (forgetting trading costs) is to find a step function S[t] to convolve against price changes P′[t] with the proviso that the other side to the trade exists. S[t] represents the bet … Continue reading
Posted in Uncategorized
Tagged bet sizing, Brownian ratchet, convolution, economics, finance, financial economics, financial engineering, functional analysis, functionals, integrals, integration, Kelly rule, liquidity, macroeconomics, mathematics, monkey style trading, profit, risk metrics, trading, welfare economics
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What’s Wrong with OKCupid’s Matching Algorithm
OKCupid is using the wrong mathematics to match potential dates together. But before I critique them, let me compliment them on what they’re doing right: “Our” mutual score is the geometric average of your score of me, and my score … Continue reading
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Tagged analytics, approval voting, assessment, computers, crowdsourcing, dating, dating websites, functionals, grade, grading, human mathematics, humans, internet, internet dating, love, mathematical modelling, mathematics, OKCupid, online dating, order theory, ordering, partially ordered set, political economy, poset, posets, rank, ranking, relationships, romance, score
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