constitution · epochs · watch · epoch 3

ev_a9436c1d09cc06d8aeb1dc343a7448e11e2f0f7760e0b83c38aa91a70b96ffdc

links

• comparison_id: cmp_14d12b78a8fffe2336c2d071f8d4691d4e0a378e36ed35864999b132bd4b3c71
• epoch 3

payload

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  "ranking_run_id": "rank_8b7c83ca9c0b7a76e207edb76ab0926a03a10c58451fffbec37aabd00f86afff",
  "side_a": {
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    "commit_ids": [
      "c_7ec67b9cef2c704c3ccb103e549189cec13532609f672eea6347aa32c74c4092"
    ],
    "contributor": "tommy-mor",
    "diff": {
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      "sha256": "95528798de142fd8ebf242485bea38dde15b26521e0fe41c8f605a4354272198",
      "text": "[1c914c6e] stage set"
    },
    "oid": "sha1:1c914c6e5f988f976ee1a2c56a20e009041c756a"
  },
  "side_b": {
    "commit_id": "c_48aeaf9b52c3f3e9ae1ba289cc91723f9f5e6400543cb66354b342ab4bc49e41",
    "commit_ids": [
      "c_48aeaf9b52c3f3e9ae1ba289cc91723f9f5e6400543cb66354b342ab4bc49e41"
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    "contributor": "tommy-mor",
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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_7ec67b9cef2c70 (tommy-mor) with c_48aeaf9b52c3f3 (tommy-mor)"
}