1 files changed, 14 insertions, 0 deletions
diff --git a/core/scoring.go b/core/scoring.go
new file mode 100644
index 0000000..9896c80
--- /dev/null
+++ b/core/scoring.go
@@ -0,0 +1,14 @@
+// Score conversion utilities.
+//
+// ScoreToScale: Maps probability (0-1) to user-friendly 1-10 scale.
+// Why: Users understand "8/10" better than "0.82 probability".
+package core
+
+import "math"
+
+// ScoreToScale turns probability into 1-10 display score
+func ScoreToScale(rawScore, threshold float64) int {
+	k := 10.0
+	adjustedScore := 1.0 / (1.0 + math.Exp(-k*(rawScore-threshold)))
+	return int(math.Round(1.0 + (adjustedScore * 9.0)))
+}