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Tag Archives: mathematical modelling
1. Use mathematics as a shorthand language rather than as an engine of inquiry 2. Keep to them [your models/problems] till you have them done 3. Translate to english 4. Illustrate with examples important to real life 5. Burn the … Continue reading
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Tagged Alfred Marshall, economics, math, mathematical modelling, mathematics, maths, reasoning, theory, theory production
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The seeds of my dissent from economic orthodoxy were pretty much sown for me by my 1st professor on the 1st day of my 1st economics class. This prof had gone to a great personal trouble to begin our exposure to … Continue reading
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Tagged assumptions, behaviour, belief, choice, choices, Coase, Coasean, decision theory, economics, efficiency, efficient frontier, efficient markets hypothesis, EMH, free will, gains from trade, inequality, knowledge, libertarians, mathematical modelling, mutually beneficial, Pareto optimality, production possibility frontier, psychology, Robinson Crusoe economy, science, symbiosis, theory, trade, welfare theorem, zero transactions costs
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There is a growing body of evidence, at least in text processing, that of … data, features, [and] algorithms … data probably matters the most. Superficial word-level features coupled with simple models in most cases trump sophisticated models over deeper … Continue reading
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Tagged big data, Hadoop, MapReduce, mathematical modeling, mathematical modelling, text analysis
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Distance between Words
Which pair is more different? keyboard | keyb`ard keyboard | keybpard keyboard | keebored Of course in mathematics we get to decide among many definitions of size and there is no “correct” answer. Just what suits the application. I can … Continue reading
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Tagged Bayesian, big data, computer, distance, letters, machine learning, Markov property, math, mathematical modelling, mathematics, maths, privacy, text mining, typing, words
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Infinite Data
Since people liked my last opinion piece on #big data, here’s another one. Imagine there was a technology that allowed me to record the position of every atom in a small room, thereby generating some ridiculous amount of data (Avogadro’s … Continue reading
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Tagged 3-D, behavioural economics, big data, computers, data, Hadoop, map-reduce, mathematical modelling, mathematical models, modelling, models, projection, psychoetrics, psychology, resolution
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As nice as it is to be able to assume normality, … there are problems. The most obvious problem is that we could be wrong. One … very nice thing … is that, in many situations, … [being wrong] won’t … Continue reading
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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05:30 You don’t ask is a model good or bad. You ask is it good for a particular question. (For example, What effect will school vouchers have on inequality? or Why do politicians “race to the center” in a two-party system but not … Continue reading
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Tagged accuracy, economic modelling, economics, heroes, markets, mathematical modelling, modelling, models, ontology, philosophy, real world, relativism, theory
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The theory of universal algebras was well-developed in the twentieth century. [It] provides a basis for model theory, and [provides] an abstract understanding of familiar principles of induction, recursion, and freeness. The theory of coalgebras is considerably [less] developed. Coalgebras … Continue reading
Human Mathematics 