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BDD

Bounded Distance Decoding

Decode a target promised to be close to a lattice, with its radius and preprocessing model fixed.

Classical · basis-relative radius

Closest-vector search with distance promised relative to the supplied Gram–Schmidt basis

1 results · 1 papers
ClassicalProvableWorst caseParameterized arithmetic time
#PUBLICATION / AUTHORSDATETIME BOUNDSPACE BOUNDEVIDENCE
—Finding the closest lattice vector when it's unusually closePhilip KleinSODA 2000SourceBibTeX / detailsclassical provable worst case basis relative randomized rounding2000nk2+O(1)Not stated in the cited introductionPublishedSource checked
Comparison definition & assumptions
Regime
Closest-vector search with distance promised relative to the supplied Gram–Schmidt basis
Computation
Classical
Rigor
Provable
Instances
Worst case
Cost scale
Parameterized arithmetic time
Parameter
n
Description
Basis-quality-dependent decoding statements, prior to basis-independent constant-radius BDD bounds.
Comparison rules
Supply a basis B and state the promise using min_i ||b_tilde_i||. Basis construction is excluded unless explicitly included. Do not turn a growing radius parameter into a fixed linear time exponent.
Tags
basis relative, Euclidean