Struct RandomArchSearch 

pub struct RandomArchSearch { /* private fields */ }

Random-search NAS: samples architectures uniformly at random, keeps track of the best seen so far.

Implementations

impl RandomArchSearch

pub fn new(space: ArchSearchSpace, seed: u64) -> Self

Create a new random architecture searcher.

Arguments

• space - Architecture search space to sample from.
• seed - RNG seed for reproducibility.

pub fn ask(&mut self) -> TrainResult<Architecture>

Ask for the next architecture to evaluate.

Always returns a fresh uniformly random architecture independent of previous results.

pub fn tell(&mut self, arch: Architecture, score: f64)

Tell the result of evaluating an architecture.

Updates the running best when score exceeds the current best.

pub fn best(&self) -> Option<&(Architecture, f64)>

Return a reference to the best (architecture, score) pair seen so far, or None if no evaluations have been recorded.

pub fn result(&self) -> Option<NasResult>

Produce a NasResult summarising the current search state.

Returns None if no evaluations have been recorded yet.