Vince Yuen

Commissioner, San Francisco Commission on the Environment

We identified Yuen’s voice at one meeting.

1 of 5transcribed meetings with their voice identified

2 of 2present at roll calls, from the clerk

Every roll call, and Yuen’s other bodies

Present at 2 of 2 roll calls at the Commission on the Environment

From the clerk’s own record. We don’t compare members on it.

PresentExcusedAbsentOldest first, 1 square per roll call

Absent 0. Jun 22, 2026 to Aug 24, 2026. The clerk’s record covers 2 of the 9 meetings we hold, through Aug 24, 2026.

Official roll call, from the clerk →

Commission on the Environment: talk time not compared. Seated for only 5 meetings in 12 months.

Meetings

Every meeting where we identified Yuen’s voice

One, newest first. The date opens the meeting; the time plays the video at Yuen’s first remark.

Apr 27, 2026Commission on the Environment0.5 min1:20:26

How we identify who is speaking · blind check, pooled across five cities: of 340 commission lines drawn, 260 right, 4 wrong, 1 unclear, 75 couldn’t be judged

A meeting missing here means we couldn’t attribute the voice, not that Yuen was absent. Claude and Gemini each read every transcript with that day’s roster. A voice gets Vince Yuen’s name only when both agree and a code check finds the name said on, or just before, their turn. Voices our transcripts merge with someone else’s are never attributed, so every count here undercounts what Yuen said. For commissions, of 340 lines drawn, 260 were right, 4 wrong and 1 unclear, and the checkers couldn’t judge 75. We have since removed the voices behind 64 of those lines (3 wrong, 0 unclear, the rest we had already held for other reasons). Of the 276 lines we still publish, the checkers could judge 228: 226 right, 1 wrong and 1 unclear (90% lower bound 0.97). They couldn’t judge the other 48. The check is one sample pooled across the five cities, not of Yuen or of San Francisco alone.