Benchmarks & research
Jeva is a decision model architecture that encodes options independently to support order stability, variable candidate sizes, precomputed caching, and distinct detection of absent answers.
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Qi Li and Xinchao Wang’s architecture stores options separately, then updates the question against those memories. This makes option order irrelevant by construction and allows reuse across questions. A separate head estimates whether the answer is absent; it is not a general uncertainty detector. The reported 27.98× median speedup assumes full option reuse over 50 questions. No released code or weights were established.
Borrow the paper’s design when building a service that repeatedly chooses from the same large menu. It stores each option separately so new questions can reuse that work. This is an architecture to implement, not a verified downloadable app; its separate no-match check is different from merely having low confidence.