Fact · Speech recognition
1000word vocabulary
A group of scientists recommended in 1971 a five-year program whose target was a system that accepts connected speech from many speakers on a 1000-word task vocabulary.
Checked against its source on October 17, 2026
In the source's own words
“In 1971, a group of scientists recommended the initiation of a five-year research program ... The system was required to accept connected speech from many speakers based on a 1000 word vocabulary task-oriented grammar”
Multi-System Approach to Speech Understanding, Raj Reddy, NASA Technical Reports Server (NTRS), 1993, Introduction.
Open the original- What it measures
- Reddy describes the 1971 goals as a set of specific performance targets for a five-year research program.
- What it does not show
- A later retrospective by a participant, not the 1971 report itself. The vocabulary size is a target, not a measured result.