跳至主要內容

群眾預測有多準?

每個已結算的市場,都以答案揭曉前的最後價格評分:群眾的最後一筆成交,若無人交易則採開盤價。匯入的市場以 Kalshi 或 Polymarket 的價格開盤,並由標示清楚的市場追蹤器在對方價格變動時跟著調整。玩家進場後追蹤器會逐步退出,有五位以上活躍玩家的市場完全交給群眾,所以冷門市場大致反映真錢價格,熱門市場則反映 Norynta 玩家的判斷。不論結果好不好看,我們都會公布。個別玩家與真錢價格的比較請見 打敗市場.

已評分市場
266
141 個由玩家交易、125 個以開盤價計;最近 365 天
Brier 分數
0.271
越低越好;均等機率為 0.500
相對均等機率的技巧
46%
群眾消除了基準誤差的多少比例

校準

每個點把市場給出相近機率的預測歸為一組。落在對角線上,代表事件發生的頻率剛好等於定價。

0%0%25%25%50%50%75%75%100%100%Priced 4%, happened 2% (89 forecasts)Priced 14%, happened 10% (41 forecasts)Priced 24%, happened 29% (38 forecasts)Priced 35%, happened 28% (32 forecasts)Priced 45%, happened 45% (62 forecasts)Priced 54%, happened 54% (69 forecasts)Priced 65%, happened 72% (32 forecasts)Priced 75%, happened 73% (37 forecasts)Priced 86%, happened 88% (42 forecasts)Priced 96%, happened 98% (90 forecasts)Market probabilityHow often it happened
Calibration table
Priced betweenAverage priceHappenedForecasts
0–10%4%2%89
10–20%14%10%41
20–30%24%29%38
30–40%35%28%32
40–50%45%45%62
50–60%54%54%69
60–70%65%72%32
70–80%75%73%37
80–90%86%88%42
90–100%96%98%90

依類別

類別市場數Brier
體育1620.387
地緣政治490.066
金融480.117
政治70.069

方法與資料

Market price at resolution: the last market-maker trade before it, or the opening price for untraded markets (imported markets open at the Kalshi or Polymarket price). Multi-outcome Brier score (0 is perfect); baseline assigns equal probability to every outcome; voided events excluded.

同樣的數據也以 JSON 提供於 /api/play/v1/accuracy,開放中市場的即時機率則在 /api/play/v1/markets/open。兩者皆可在註明出處下免費使用。遊戲點數不具現金價值。