constitution · epochs · watch · epoch 3
comparison.input
ev_fdbfa9149b91e7de8eb05a259ac158cda39f0532883d65287ca00d697e8b6191
kindcomparison.input
epoch3
recorded_at_ms1784426574015
previous_event_sha256219208e6a7f41bb9db25c169d39818b95b851f73937a2582449421f4d73c7080
schema_version2
links
payload
{
"comparison_id": "cmp_ca9942ca8beb9194f871d54ca1ac5fbdeb7c1b10c9b4f6202a891e336135231d",
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"side_a": {
"commit_id": "c_92734e554a25ee6fc5ae3e252f7f022c6b63602611f0afb59fc35f36924a2eae",
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"contributor": "tommy-mor",
"diff": {
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"encoding": "base64",
"sha256": "f819bfaf69962bb8eeb3e025c8859de61e16d3fb31a18757d99c81aefad624f7",
"text": "[558dfca8] fix"
},
"oid": "sha1:558dfca8e3677b11d426ae4cb365f3855c329bcb"
},
"side_b": {
"commit_id": "c_48aeaf9b52c3f3e9ae1ba289cc91723f9f5e6400543cb66354b342ab4bc49e41",
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"text": "[595b3850] Fix star-topology ranking by using degree-based d_max (#146).\n\nA pure forward star at the default `>` ratio (2:1) produced uniform 1/3\nscores, and the alphabetical-fallback sort placed the unambiguous winner\nlast. Root cause: `compute_scores_from_edges` divided by the max sum of\npairwise-normalized weights, so every node ended up with P_ii = 0 \u2014 a\nbipartite Markov chain whose power iteration oscillated and, after the\nconfigured even iteration count, returned to the uniform initial state.\n\nSwitch the divisor to the unweighted max neighbor degree, matching the\ncanonical Rank Centrality definition in Negahban\u2013Oh\u2013Shah 2012 \u00a73.1\n(arXiv:1209.1688, eq. defP and the d_max definition in \u00a76). This gives\nevery non-saturated node a positive self-loop, makes the chain aperiodic,\nand converges the star to \u03c0_zebra = 1/2, \u03c0_alpha = \u03c0_beta = 1/4.\n\nAdd Rust regression test and a Clojure test that drives the sorterc\nbinary against four .sorter fixtures (star, inverse star, chain, cycle).\n\nCo-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>"
},
"oid": "sha1:595b38509b0d0b3445234d3b9d9759a6d6a471cd"
},
"summary": "Comparing c_92734e554a25ee (tommy-mor) with c_48aeaf9b52c3f3 (tommy-mor)"
}