Init v0.1.0

1 files changed, 20 insertions, 0 deletions

diff --git a/core/model.go b/core/model.go
new file mode 100644
index 0000000..28f4045
--- /dev/null
+++ b/core/model.go
@@ -0,0 +1,20 @@
+// Model envelope persists trained model to JSON. Contains Vectorizer for IDF values,
+// OrderedVocab for feature ordering, and Weights for logistic regression.
+// To score: recreate TFIDFVectorizer, transform, then PredictScore.
+package core
+
+import (
+	"time"
+)
+
+// ModelEnvelope - complete trained model for scoring articles
+type ModelEnvelope struct {
+	Algorithm    string             `json:"algorithm"`
+	Impl         string             `json:"impl"`
+	Version      string             `json:"version"`
+	CreatedAt    time.Time          `json:"created_at"`
+	Meta         map[string]any     `json:"meta"`
+	Vectorizer   map[string]float64 `json:"vectorizer"`
+	OrderedVocab []string           `json:"ordered_vocab"`
+	Weights      []float64          `json:"weights"`
+}