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Reading The Idea FactoryJon Gertner

Studying Probabilistic record linkage Robin Linacre's write-up. The clearest account of Fellegi-Sunter I have found, and it is free. Apache Ossie The semantic interchange spec, formerly OSI. A common format for what a metric actually means, across tools.

Fact of the month

Entities do not exist in the information system. They exist in the real world. Information systems store references to entities, never the entities themselves. Sep 2026 · Something I keep coming back to. · all marginalia

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Similarity is not transitive 5 September 2026

Paradox of the month The ship of Theseus Replace every plank of a ship, one at a time, and you have a ship made of entirely new material. Is it the same ship? Now rebuild the original from … all paradoxes

Question · maths Similarity is not transitive. So how does anything ever get grouped? Aug 2026

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Everything here is mine and written in a personal capacity. My views are my own and do not represent my employer, past or present.