Four short links: 4 August 2014

Web Spreadsheet, Correlated Novelty, A/B Ethics, and Replicated Data Structures

  1. EtherCalcopen source web-based spreadsheet.
  2. Dynamics of Correlated Novelties (Nature) — paper on “the adjacent possible”. Here we propose a simple mathematical model that mimics the process of exploring a physical, biological, or conceptual space that enlarges whenever a novelty occurs. The model, a generalization of Polya’s urn, predicts statistical laws for the rate at which novelties happen (Heaps’ law) and for the probability distribution on the space explored (Zipf’s law), as well as signatures of the process by which one novelty sets the stage for another. (via Steven Strogatz)
  3. On The Media Interview with OKCupid CEO — relevant to the debate on ethics of A/B tests. I preferred this to Tim Carmody’s rant.
  4. CRDTs as Alternative to APIswhen using CRDTs to tie your system together, you don’t need to resort to using impoverished representations that simply never come anywhere near the representational power of the data structures you use in your programs at runtime. See also this paper on Convergent and Commutative Replicated Data Types.
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