Method getSegmentNameCounts

src/db/queries.ts:735–745

How many distinct names each segment appears in — the rarity signal that * separates a discriminative word ("checkout") from a ubiquitous one ("state").

(segments: string[])

  /** How many distinct names each segment appears in — the rarity signal that
   *  separates a discriminative word ("checkout") from a ubiquitous one ("state"). */
  getSegmentNameCounts(segments: string[]): Map<string, number> {
    if (segments.length === 0) return new Map();
    const placeholders = segments.map(() => '?').join(', ');
    const rows = this.db
      .prepare(
        `SELECT segment, COUNT(*) AS n FROM name_segment_vocab
         WHERE segment IN (${placeholders}) GROUP BY segment`,
      )
      .all(...segments) as Array<{ segment: string; n: number }>;
    return new Map(rows.map((r) => [r.segment, r.n]));
  }

  /** Names containing the given segment (rare-single-word tier). */
  getNamesForSegment(segment: string, limit: number): string[] {