{"@context":"https://schema.org","@type":"Dataset","name":"Martial Arts Schools in Port Harcourt, Nigeria: Ranked ordering","description":"Ranked's ordered list of martial arts schools in Port Harcourt, Rivers State, Nigeria, with the composite score behind every position. Ranking is computed from review data and is never for sale.","url":"https://ranked.ng/martial-arts-schools/port-harcourt","license":"https://ranked.ng/terms","creator":{"@type":"Organization","name":"Ranked","url":"https://ranked.ng"},"isAccessibleForFree":true,"distribution":[{"@type":"DataDownload","encodingFormat":"application/json","contentUrl":"https://ranked.ng/dataset/rankings/martial-arts-schools/port-harcourt.json"}],"usage":{"citation":"Ranked (ranked.ng), Nigeria's directory of record","attributionUrl":"https://ranked.ng/martial-arts-schools/port-harcourt","methodology":"https://ranked.ng/how-we-rank","note":"Ranking position is editorial output computed from review data. Paid placement never affects position. The verified flag is granted only on evidence (owner phone-control proof, CAC registry match, or a hand-approved claim) and is never sold."},"spatialCoverage":{"@type":"City","name":"Port Harcourt, Rivers State, Nigeria"},"scoreModel":{"compositeRange":[0,100],"compositeDecimals":3,"breakdownPrecision":"exact","dimensions":["rating","volume","recency","completeness","sentiment","verification"],"weights":{"rating":0.38,"volume":0.24,"recency":0.13,"completeness":0.1,"sentiment":0.1,"verification":0.05},"weightsVersion":"2026-07-16","weightsEffectiveFrom":"2026-07-16","reproduce":"rankedScore = round(sum over `dimensions`, in that order, of scoreBreakdown[d] * weights[d], to `compositeDecimals` decimals). scoreBreakdown values are 0-100 and unrounded, so this reproduces the published rankedScore exactly. 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A weights change is dated here before it is applied, because a change with no dated record would make every previously published score unreproducible with no way to tell that from an error."},"dateModified":"2026-09-06","totalRanked":14,"totalGoogleReviews":694,"returned":14,"reproducibility":{"rows":14,"reproducible":6,"note":"8 of 14 rows were scored before 7 September 2026 and carry a breakdown rounded to 2 decimals; each is flagged with scoreReproducible: false. They close on the next re-rank."},"places":[{"rank":1,"name":"Zen Budo Karate","url":"https://ranked.ng/place/zen-budo-karate-nbtj_0","rankedScore":73.182,"scoreBreakdown":{"rating":95.26,"volume":45.39,"recency":85.31,"completeness":100,"sentiment":50,"verification":0},"scoreComputedAt":"2026-09-04T15:51:06.687Z","scoreInputs":null,"scoreReproducible":false,"scoreNote":"This row was scored before 7 September 2026. 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