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feat(blasgraph): add ZeckF64 neighborhood search — Heel/Hip/Twig/Leaf…#16

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AdaWorldAPI merged 1 commit intomainfrom
claude/continue-session-0mAVa
Mar 18, 2026
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feat(blasgraph): add ZeckF64 neighborhood search — Heel/Hip/Twig/Leaf…#16
AdaWorldAPI merged 1 commit intomainfrom
claude/continue-session-0mAVa

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… cascade

Implement the primary neighborhood vector search system for lance-graph. ZeckF64 encodes SPO triple distances as progressive 8-byte values (94% precision from byte 0 alone). The 4-stage cascade explores ~200K nodes in 3 hops loading only ~1.2MB from disk.

New modules:

  • zeckf64: 8-byte progressive edge encoding with lattice-legal scent byte
  • neighborhood: scope-based neighborhood vectors (10K nodes/scope)
  • heel_hip_twig_leaf: 4-stage search cascade (Heel→Hip→Twig→Leaf)
  • lance_neighborhood: Arrow schemas for Lance persistence
  • neighborhood_csr: CSR bridge for graph algorithms (secondary path)
  • clam_neighborhood: CLAM ball-tree for Pareto convergence conjecture test

38 new tests, 555 total tests passing, 0 warnings.

https://claude.ai/code/session_01CdqyUTUfjKZuk8YGJzv6LB

… cascade

Implement the primary neighborhood vector search system for lance-graph.
ZeckF64 encodes SPO triple distances as progressive 8-byte values (94%
precision from byte 0 alone). The 4-stage cascade explores ~200K nodes
in 3 hops loading only ~1.2MB from disk.

New modules:
- zeckf64: 8-byte progressive edge encoding with lattice-legal scent byte
- neighborhood: scope-based neighborhood vectors (10K nodes/scope)
- heel_hip_twig_leaf: 4-stage search cascade (Heel→Hip→Twig→Leaf)
- lance_neighborhood: Arrow schemas for Lance persistence
- neighborhood_csr: CSR bridge for graph algorithms (secondary path)
- clam_neighborhood: CLAM ball-tree for Pareto convergence conjecture test

38 new tests, 555 total tests passing, 0 warnings.

https://claude.ai/code/session_01CdqyUTUfjKZuk8YGJzv6LB
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@AdaWorldAPI AdaWorldAPI merged commit a560148 into main Mar 18, 2026
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