Improve pocket-centroid ranking beyond the proposal ceiling

Improve ranking of the union of pocket proposals from fpocket, P2Rank, Lacuna, and VN-EGNN so that DCC$_{N+2}$ exceeds the current ceiling imposed by the available proposals.

Background

Pooling proposals from multiple pocket detectors produces a high ceiling for pocket-centroid recall, but ranking the union with zPocket does not achieve a DCCN+2_{N+2} value beyond that ceiling. Thus, although zPocket improves ranking for many individual proposal sets, the paper leaves unresolved whether a better ranking strategy can extract additional recall from the union of existing proposals.

References

We note that even though the union of proposals had a higher ceiling, we were not able to improve DCC$_{N+2}$ beyond this through ranking.

— zPocket: Better Pocket Finding with Frozen Co-Folding Features  (2610.17696 - Portnoi et al., 13 Oct 2026) in Section 4.2, subsection “zPocket contributes proposals, not just ranking”