Typed Search Spaces

PSPSO 1.0 accepts only explicit domain objects:

from pspso import Choice, FloatRange, IntRange, LogFloatRange, SearchSpace

space = SearchSpace({
    "kernel": Choice(["linear", "rbf"]),
    "max_depth": IntRange(2, 12),
    "subsample": FloatRange(0.7, 1.0, precision=2),
    "learning_rate": LogFloatRange(0.001, 0.3, precision=5),
})

Domain	Use
Choice	Categories, booleans, and explicit alternatives.
IntRange	Inclusive integer values.
FloatRange	Linear continuous values rounded to a precision.
LogFloatRange	Positive values spanning several orders of magnitude.

decode() converts an optimizer position to estimator parameters. encode() performs the reverse conversion. iter_grid() produces decoded combinations, grid_size reports their count, and to_schema() produces the API v1 JSON representation.

List-based declarations are intentionally rejected because their meaning was ambiguous and could silently interpret categories or numeric precision incorrectly.