BasePref

class negmas.preferences.BasePref(*args, **kwargs)[source]

Base Protcol for all preferences in NegMAS. All Preferences objects implement this interface

Attributes Summary

`base_type`	Returns the utility_function base type ignoring discounting and similar wrappings.
`type`	Returns the preferences type.

Methods Summary

`is_session_dependent`()	Does the utiltiy of an outcome depend on the `NegotiatorMechanismInterface`?
`is_state_dependent`()	Does the utiltiy of an outcome depend on the negotiation state?
`is_stationary`()	Is the ufun stationary (i.e. utility value of an outcome is a constant)?.
`is_volatile`()	Does the utiltiy of an outcome depend on factors outside the negotiation?

Attributes Documentation

base_type: Returns the utility_function base type ignoring discounting and similar wrappings.

Methods Documentation

abstractmethod is_session_dependent() → bool[source]: Does the utiltiy of an outcome depend on the NegotiatorMechanismInterface?

abstractmethod is_state_dependent() → bool[source]: Does the utiltiy of an outcome depend on the negotiation state?

abstractmethod is_stationary() → bool[source]: Is the ufun stationary (i.e. utility value of an outcome is a constant)?

abstractmethod is_volatile() → bool[source]

Does the utiltiy of an outcome depend on factors outside the negotiation?

Remarks:

A volatile preferences is one that can change even for the same mechanism state due to outside influence