User:7804j

I am the main founder and president of the Open Knowledge Association (OKA), a non-profit granting stipends to full-time Wikipedia translators. The articles we created are listed here. The work I do on Wikipedia and for OKA is during my free-time only, without any link to my full-time activity or to my employer.

My philosophy for life is Effective altruism. I fix what I find when browsing Wikipedia and try to contribute on pages where I feel that it would maximize my Social return on investment. In particular, I tend to focus on the fields of statistics, game theory, computer science and economics. I spend most of my time on the lead section of articles, on simplifying definitions and clarifying the differences between similar terms and topics.

Personal contributions

I keep here a list of my main Wikipedia contributions (outside of the work on OKA), mostly to keep a personal history but also for transparency. Note that I am not an expert on any of those topics, but that I only make changes when I have reached a high level of confidence in the accuracy of what I wrote.

Law

Created:

Other:

Rewrote lead: Allianz SpA v West Tankers, Approved Publication Arrangement, Arsenal Football Club v Reed, Ash v. Childs Dining Hall Co., ASF17 v Commonwealth of Australia, Unincorporated association, Back-bond
Euthanasia in Switzerland: Added section "Death investigation and costs".
Added infobox, standardized format and clarified names: Swiss nationality law, Federal Act on Banks and Savings Banks

Public policy

Created:

Government institutions

Created:

Added infobox, standardized format and clarified names:Swiss Federal Institute of Intellectual Property, Federal Patent Court (Switzerland)

Updated organigrams: Federal administration of Switzerland, Federal Department of Justice and Police, Federal Department of Home Affairs, Federal Department of Defence, Civil Protection and Sport, Federal Department of Finance

Statistics and Mathematics

Markov chain, Markov process, Memorylessness, Examples of Markov Chains: clarified the definitions and relationships between the terms; rewrote most of the lead section, merged Markov Chain and Markov Process, restructured the whole article of Markov chain.
Cohort study, longitudinal study, panel study, cohort (statistics), panel data, longitudinal data: clarified the definitions and relationship between the terms (incl. page redirections and significant changes on the lead section).
Centrality, Closeness centrality, Eigenvector centrality, Katz centrality, Closeness centrality, Random walk closeness centrality: clarified the definitions and relationship between the terms (incl. page redirections, creation of new articles and significant changes on the lead section).
Autocorrelation and Serial dependence: merged the two pages, and rewrote lead.
Unit root test, Moving-average model, Autoregressive model, Dickey–Fuller test, Correlation and dependence, Association (statistics), Rank correlation, Ordinal association, Augmented Dickey–Fuller test, Breusch–Godfrey test, Autoregressive integrated moving average, Exponential smoothing, Ljung–Box test, Durbin–Watson statistic : less important changes to lead sections to help distinguish between the terms and clarify definitions
Kendall rank correlation coefficient and Spearman's rank correlation coefficient: large change to the lead to help understand and distinguish between the two coefficients.
Simple matching coefficient and Jaccard index: wrote the section distinguishing between the two measures.
Silhouette (clustering): large addition in lead section to include interpretation of the measure
Roulette (curve): Added trochoids to the list, and created the page category: Roulettes.
Price's law, Neyman-Scott process: created the page
Unit root, Trend stationary, KPSS test, Alternating conditional expectations: entirely rewrote or made significant changes to the lead section.
Abstract structure, Ackermann's formula, Analysis of variance, F-test, Statistical coupling analysis, ANOVA–simultaneous component analysis, Factorial experiment, Fractional factorial design, Max-flow min-cut theorem, Approximate max-flow min-cut theorem, Applicability domain, Stationary process, Asymmetric cointegration, Cointegration, Time domain, Autologistic actor attribute models, Exponential family random graph models, Auxiliary particle filter, State-space representation, Mutual coherence (linear algebra), Babel function, B-spline, Bayesian interpretation of kernel regularization, Timed automaton, Formalism (philosophy of mathematics), Radiodrome, Rough path, Graph continuous function, Yates's correction for continuity, Ky Fan inequality: rewrote the lead

Computer science

Online analytical processing and Online transaction processing: clarified the difference between the two terms in the lead.
Cloudera Impala, Interpolation search, Imperative programming, Kruskal's algorithm, Minimum spanning tree, Turing machine, Data mart, Structure mining, Cloud computing, Association rule learning, Column-Oriented DBMS: changes to lead or clarifications of some aspects.
Edit distance and Damerau–Levenshtein distance: clarified the differences between the various types of edit distance, standardized and simplified the leads
Elbow method (clustering), Differential privacy composition theorems: created the page
CAP theorem, PACELC theorem, NoSQL, Polkadot, Unbounded nondeterminism, Backus–Naur form: rewrote/restructured most of the page
Embedding (machine learning): created the page
Optimistic knowledge gradient, Additive noise differential privacy mechanisms, Anisotropic filtering, Ancilla bit, Reversible computing, Articulated body pose estimation, Array Based Queuing Locks, Zero-overhead looping, UltraRAM, Attack tolerance, Automatic basis function construction, Unbiased rendering, Batch normalization, Zachman Framework, Treasury Enterprise Architecture Framework, NX bit, Executable-space protection, Software framework, Model-based systems engineering, Best node search, Neural differential equation, Algebraic semantics (computer science), YANG, XQuery, XML Information Set, XML Literals, XARA: rewrote lead

Game Theory & Decision Theory

Cooperative game theory, Non-cooperative game theory (and the relevant section of Game theory): entirely redefined the terms and rewrote the lead section.
Vickrey–Clarke–Groves auction: wrote the "intuitive description" section and clarified the lead section.
Perfect recall (game theory), Farsigthedness (game theory): created the page
Sequential game, Costly state verification, Consensus dynamics, Complete mixing, Hierarchy of beliefs: rewrote article
Ultimatum game, One-shot deviation principle, Asynchrony (game theory), Replicator equation, Bayesian game, Complete information, Perfect information, Strategyproofness, Incentive compatibility, Revelation principle, Prospect Theory, Algorithmic game theory, Subgame perfect equilibrium, Differential game, Aumann's agreement theorem, Superrationality, Homo economicus, Homo reciprocans, Bertrand–Edgeworth model, Bayesian regret, Coopetition, Confrontation analysis, Competitive regret, Regret (decision theory), Chainstore paradox, Expected value of including uncertainty, Fictitious play, Law of the handicap of a head start, Graphical game theory, Game semantics, Dialogical logic, Interdependence theory, Heresthetic, Authority distribution, Information set (game theory), Max-dominated strategy, Markov strategy, Ky Fan inequality (game theory), Kuhn's theorem: rewrote lead

Economics

Double marginalization, No-reserve auction: created the page
Risk parity: clarification of definition in lead section.
Zero lower bound: Added root cause and solution paragraphs in lead section
Harmonic mean: Clarified and rewrote application in finance; restructured examples section.
Auction ‎and Auction theory: diverse changes to improve consistency.
English auction: added the "Japanese auction" section.
List of Nobel Memorial Prize laureates in Economics: addition of the "Key contributions" column
Rewrote lead: Attitude-toward-the-ad models, The Market for Lemons, Ramsey–Cass–Koopmans model
Rewrote article: Index (economics), Price index

Finance

Rachev ratio, Wrong Way Risk, Excess insurance, Earnings report, Cash-flow-to-debt ratio, Basic Earnings Power, Working Capital Turnover Ratio: created and wrote the page
Exposure at default, Credit risk, Credit Exposure, Probability of default, Potential future exposure, Loss given default: clarified definitions and relationship between terms (incl. page redirections, creation of new articles and significant changes on the lead section).
Tracking error and Active risk: merged the two articles.
Omega ratio, Alpha (finance): clarifications and small changes for consistency between the different ratios.
Information ratio, Sharpe ratio, Cross-listing, Umbrella insurance, Asset-backed commercial paper program, Earnings call, Quarterly financial report, Lombard credit: rewrote lead
Price–sales ratio: rewrote page

Accounting

Net Income and Net Profit, Gross Income, Gross profit and Gross margin: merged and restructured the pages
Quick ratio, Return on Capital: restructured lead and clarified definition
Net Operating Assets: merged invested capital into the page, and rewrote the page
Non-financial asset: created stub

Operations & business management

Vendor-managed inventory, Silver–Meal heuristic: minor changes to lead or clarifications of some aspects.
Kraljic matrix: created and wrote the page and graph.
Work domain analysis, Behavioral strategy: rewrote the page
Hayes-Wheelwright matrix, Benefit dependency network, Overall equipment effectiveness, (Q,r) model, Cognitive engineering, Cognitive systems engineering, Cognitive work analysis: rewrote lead

Psychology

Explicit memory, Declarative memory, Implicit memory, Procedural memory, Autobiographical memory: clarified the definitions and relationship between the terms, incl. the merger of declarative memory into explicit memory.
Miller's law, Peak–end rule, Duration neglect, Base rate fallacy: minor changes to lead, clarification of relationship between the terms.
Halo effect, Anxiety/uncertainty management, Assimilation and contrast effects: rewrote the lead section.
Proportionality bias, Amae: created the page
List of cognitive biases: added the column "Type" and categorized the biases accordingly
Gell-Mann amnesia effect: recreated the page
Attenuation theory, Attentional blink: rewrote lead

Philosophy

Other (philosophy), Alterity, Umwelt, Cartesian theater, Cartesian materialism, Semantics of logic: Rewrote the lead section

Linguistics and Communication

A-not-A question, Agglutinative language, Antisymmetry, X-bar theory, Apocope, Assimilation (phonology): rewrote the lead
Morphological richness, Strategic silence: created the page

Medicine and neurology

Charlson Comorbidity Index (CCI), Comorbidity–polypharmacy score, Elixhauser Comorbidity Index, Representational drift : created the pages
Drug tolerance, Tolerability, Reverse tolerance, Desensitization (medicine) and Tachyphylaxis: re-wrote large sections of the lead and clarified relationship between terms
Amelogenesis, Aniridia, Arden syntax, Uncoupling (neuropsychopharmacology), Compartmental models (epidemiology): rewrote the lead

Anatomy:

Zygomasseteric system: rewrote the lead

Chemistry

Ab initio quantum chemistry methods: rewrote the lead

Physics

Acoustic wave, Adiabatic accessibility, Absorbing set (random dynamical systems), Apparent source width, Atmospheric convection, Atmospheric circulation of exoplanets, Zeldovich spontaneous wave, Axilrod–Teller potential, Azimi Q models, Q models (seismology), Kolsky Q models, Anelastic attenuation factor, Balance of angular momentum, Bandwidth smearing, Bandlimiting, Unit interval (data transmission): rewrote the lead

Engineering

Rewrote the lead: Airspace class, Aircraft Data Network, Area navigation, Zero-stage, Askam Borehole, BCT common controller

Other

Created:

Rewrote lead: Ascended master, Australidelphia, Bahía Mansa Metamorphic Complex, Batrachospermaceae, Mesa

Rewrote page: Banausos, Arlberg technique, Jean-François Bayart

Other: Mausoleum of the First Qin Emperor (created the "discovery" section, translated from French); Restructuring of pages, including Notarial act

As well as minor changes to a variety of other articles.