concepts.dm.pdsketch.crow.crow_planner_v2.CROWRecursiveSearcherV2#

class CROWRecursiveSearcherV2[source]#

Bases: object

Methods

`apply_regression_rule_effect`(state, rule, ...)
`apply_regression_rule_prefix`(node, ...)	Apply the regression rule for a prefix of the subgoal.
`dfs`(node)	The main entrance of the CROW planner.
`main`()
`postprocess_plans`(node, all_possible_plans)
`solve_csp`(csp, max_csp_trials[, actions])

Attributes

`generator_manager`
`search_stat`

__init__(executor, state, goal_expr, *, enable_reordering=False, max_search_depth=10, max_beam_size=20, is_goal_serializable=True, is_goal_refinement_compressible=True, enable_csp=True, max_csp_trials=10, max_global_csp_trials=100, max_csp_branching_factor=5, use_generator_manager=False, store_generator_manager_history=False, enable_simulation=False, simulator=None, enable_dirty_derived_predicates=False, enable_greedy_execution=False, allow_empty_plan_for_optimistic_goal=False, verbose=True)[source]#

Initialize the CROW planner.

Parameters:

executor (PDSketchExecutor) – the executor used to execute the expressions.
state (State) – the current state.
goal_expr (str | ValueOutputExpression) – the goal expression to achieve.
enable_reordering (bool) – whether to enable reordering in regression rule applications.
max_search_depth (int) – the maximum search depth.
max_beam_size (int) – the maximum beam size when trying different refinements of the same goal.
is_goal_serializable (bool) – whether the goal has been serialized.
is_goal_refinement_compressible (bool) – whether the serialized goals are refinement-compressible (i.e., for each goal item, do we need to track all the skeletons?)
enable_csp (bool) – whether to enable CSP solving.
max_csp_trials (int) – the maximum number of CSP trials.
max_global_csp_trials (int) – the maximum number of CSP trials for the global CSP (i.e., the CSP associated with the root node of the search tree.)
max_csp_branching_factor (int) – the maximum branching factor for CSP.
use_generator_manager (bool) – whether to use the generator manager.
store_generator_manager_history (bool) – whether to store the history of the generator calls in the generator manager.
enable_simulation (bool) – whether to enable simulation in CSP solving.
simulator (PDSketchSimulatorInterface | None) – the simulator used for simulation.
enable_dirty_derived_predicates (bool) – whether to enable dirty derived predicates.
enable_greedy_execution (bool) – whether to enable greedy execution.
allow_empty_plan_for_optimistic_goal (bool) – whether to allow empty plan for optimistic goal.
verbose (bool) – whether to print verbose information.