| dbo:abstract |
Log5 is a method of estimating the probability that team A will win a game against team B, based on the odds ratio between the estimated winning probability of Team A and Team B against a larger set of teams. Let and be the average winning probabilities of team A and B and let be the probability of team A winning over team B, then we have the following odds ratio equation One can then solve The name Log5 is due to Bill James but the method of using odds ratios in this way dates back much farther. This is in effect a logistic rating model and is therefore equivalent to the Bradley–Terry model used for paired comparisons, the Elo rating system used in chess and the Rasch model used in the analysis of categorical data. A few notable properties exist: * If , Log5 will always give A a 100% chance of victory. * If , Log5 will always give A a 0% chance of victory. * If , Log5 will always return a 50% chance of victory for either team. * If , Log5 will give A a probability of victory. (en) |
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dbr:Bill_James dbr:Bradley–Terry_model dbc:Baseball_terminology dbr:Elo_rating_system dbr:Rasch_model dbc:Sports_records_and_statistics dbc:Bill_James dbc:Baseball_statistics dbr:Odds_ratio dbr:Paired_comparisons dbr:Logit_model |
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dbt:Reflist dbt:Sports_rating_systems |
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dbc:Baseball_terminology dbc:Sports_records_and_statistics dbc:Bill_James dbc:Baseball_statistics |
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yago:WikicatSportsRecordsAndStatistics yago:Abstraction100002137 yago:Communication100033020 yago:Evidence106643408 yago:Indication106797169 yago:Record106647206 |
| rdfs:comment |
Log5 is a method of estimating the probability that team A will win a game against team B, based on the odds ratio between the estimated winning probability of Team A and Team B against a larger set of teams. Let and be the average winning probabilities of team A and B and let be the probability of team A winning over team B, then we have the following odds ratio equation One can then solve A few notable properties exist: (en) |
| rdfs:label |
Log5 (en) |
| owl:sameAs |
freebase:Log5 yago-res:Log5 wikidata:Log5 https://global.dbpedia.org/id/4qx5T |
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wikipedia-en:Log5?oldid=1093161298&ns=0 |
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wikipedia-en:Log5 |
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dbr:Ken_Pomeroy |
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wikipedia-en:Log5 |