scml.scml2020.agents.decentralizing

Implements the DecentralizingAgent which creates ony buy and one sell controller for each time-step and relinquishes control of negotiations to buy/sell the required number of items of its input/output product.

Module Contents

Classes

DecentralizingAgent	A negotiation manager that controls a controller and another for selling for every timestep
MarketAwareDecentralizingAgent	Predicts an amount based on publicly available market information. Falls
DecentralizingAgentWithLogging	A negotiation manager that controls a controller and another for selling for every timestep
IndDecentralizingAgent	A negotiation manager that manages independent negotiators that do not share any information once created
MarketAwareIndDecentralizingAgent	Signs all contracts that have good prices

class scml.scml2020.agents.decentralizing.DecentralizingAgent(*args, negotiator_type: negmas.SAONegotiator | str = AspirationNegotiator, negotiator_params: Dict[str, Any] | None = None, **kwargs)

Bases: _NegotiationCallbacks, scml.scml2020.components.StepNegotiationManager, scml.scml2020.components.trading.PredictionBasedTradingStrategy, scml.scml2020.components.SupplyDrivenProductionStrategy, scml.scml2020.world.SCML2020Agent

A negotiation manager that controls a controller and another for selling for every timestep

Parameters:

• negotiator_type – The negotiator type to use to manage all negotiations

• negotiator_params – Paramters of the negotiator

Provides:

• all_negotiations_concluded

Requires:

• acceptable_unit_price

• target_quantity

• OPTIONALLY target_quantities

Hooks Into:

• init

• respond_to_negotiation_request

Remarks:

• Attributes section describes the attributes that can be used to construct the component (passed to its __init__ method).

• Provides section describes the attributes (methods, properties, data-members) made available by this component directly. Note that everything provided by the bases of this components are also available to the agent (Check the Bases section above for all the bases of this component).

• Requires section describes any requirements from the agent using this component. It defines a set of methods or properties/data-members that must exist in the agent that uses this component. These requirement are usually implemented as abstract methods in the component

• Abstract section describes abstract methods that MUST be implemented by any descendant of this component.

• Hooks Into section describes the methods this component overrides calling super () which allows other components to hook into the same method (by overriding it). Usually callbacks starting with on_ are hooked into this way.

• Overrides section describes the methods this component overrides without calling super effectively disallowing any other components after it in the MRO to call this method. Usually methods that do some action (i.e. not starting with on_) are overridden this way.

class scml.scml2020.agents.decentralizing.MarketAwareDecentralizingAgent(*args, buying_margin=None, selling_margin=None, min_price_margin=0.5, max_price_margin=0.5, **kwargs)

Bases: scml.scml2020.components.prediction.MarketAwareTradePredictionStrategy, _NegotiationCallbacks, scml.scml2020.components.MovingRangeNegotiationManager, scml.scml2020.components.trading.PredictionBasedTradingStrategy, scml.scml2020.components.signing.KeepOnlyGoodPrices, scml.scml2020.components.SupplyDrivenProductionStrategy, scml.scml2020.world.SCML2020Agent

Predicts an amount based on publicly available market information. Falls back to fixed prediction if no information is available

Hooks Into:

• internal_state

• on_contracts_finalized

Remarks:

• Attributes section describes the attributes that can be used to construct the component (passed to its __init__ method).

• Provides section describes the attributes (methods, properties, data-members) made available by this component directly. Note that everything provided by the bases of this components are also available to the agent (Check the Bases section above for all the bases of this component).

• Requires section describes any requirements from the agent using this component. It defines a set of methods or properties/data-members that must exist in the agent that uses this component. These requirement are usually implemented as abstract methods in the component

• Abstract section describes abstract methods that MUST be implemented by any descendant of this component.

• Hooks Into section describes the methods this component overrides calling super () which allows other components to hook into the same method (by overriding it). Usually callbacks starting with on_ are hooked into this way.

• Overrides section describes the methods this component overrides without calling super effectively disallowing any other components after it in the MRO to call this method. Usually methods that do some action (i.e. not starting with on_) are overridden this way.

class scml.scml2020.agents.decentralizing.DecentralizingAgentWithLogging(*args, **kwargs)

Bases: _NegotiationCallbacks, scml.scml2020.components.StepNegotiationManager, scml.scml2020.components.trading.PredictionBasedTradingStrategy, scml.scml2020.components.SupplyDrivenProductionStrategy, scml.scml2020.world.SCML2020Agent

A negotiation manager that controls a controller and another for selling for every timestep

Parameters:

• negotiator_type – The negotiator type to use to manage all negotiations

• negotiator_params – Paramters of the negotiator

Provides:

• all_negotiations_concluded

Requires:

• acceptable_unit_price

• target_quantity

• OPTIONALLY target_quantities

Hooks Into:

• init

• respond_to_negotiation_request

Remarks:

• Attributes section describes the attributes that can be used to construct the component (passed to its __init__ method).

• Provides section describes the attributes (methods, properties, data-members) made available by this component directly. Note that everything provided by the bases of this components are also available to the agent (Check the Bases section above for all the bases of this component).

• Requires section describes any requirements from the agent using this component. It defines a set of methods or properties/data-members that must exist in the agent that uses this component. These requirement are usually implemented as abstract methods in the component

• Abstract section describes abstract methods that MUST be implemented by any descendant of this component.

• Hooks Into section describes the methods this component overrides calling super () which allows other components to hook into the same method (by overriding it). Usually callbacks starting with on_ are hooked into this way.

• Overrides section describes the methods this component overrides without calling super effectively disallowing any other components after it in the MRO to call this method. Usually methods that do some action (i.e. not starting with on_) are overridden this way.

class scml.scml2020.agents.decentralizing.IndDecentralizingAgent(*args, negotiator_type: negmas.SAONegotiator | str = AspirationNegotiator, negotiator_params: Dict[str, Any] | None = None, **kwargs)

Bases: _NegotiationCallbacks, scml.scml2020.components.IndependentNegotiationsManager, scml.scml2020.components.trading.PredictionBasedTradingStrategy, scml.scml2020.components.SupplyDrivenProductionStrategy, scml.scml2020.world.SCML2020Agent

A negotiation manager that manages independent negotiators that do not share any information once created

Parameters:

• negotiator_type – The negotiator type to use to manage all negotiations

• negotiator_params – Parameters of the negotiator

Requires:

• create_ufun

• acceptable_unit_price

• target_quantity

• OPTIONALLY target_quantities

Hooks Into:

• respond_to_negotiation_request

Remarks:

• Attributes section describes the attributes that can be used to construct the component (passed to its __init__ method).

• Provides section describes the attributes (methods, properties, data-members) made available by this component directly. Note that everything provided by the bases of this components are also available to the agent (Check the Bases section above for all the bases of this component).

• Requires section describes any requirements from the agent using this component. It defines a set of methods or properties/data-members that must exist in the agent that uses this component. These requirement are usually implemented as abstract methods in the component

• Abstract section describes abstract methods that MUST be implemented by any descendant of this component.

• Hooks Into section describes the methods this component overrides calling super () which allows other components to hook into the same method (by overriding it). Usually callbacks starting with on_ are hooked into this way.

• Overrides section describes the methods this component overrides without calling super effectively disallowing any other components after it in the MRO to call this method. Usually methods that do some action (i.e. not starting with on_) are overridden this way.

create_ufun(is_seller: bool, issues=None, outcomes=None)

Creates a utility function

class scml.scml2020.agents.decentralizing.MarketAwareIndDecentralizingAgent(*args, buying_margin=None, selling_margin=None, min_price_margin=0.5, max_price_margin=0.5, **kwargs)

Bases: scml.scml2020.components.signing.KeepOnlyGoodPrices, scml.scml2020.components.prediction.MarketAwareTradePredictionStrategy, IndDecentralizingAgent

Signs all contracts that have good prices

Overrides:

• sign_all_contracts

- buying_margin

The margin from the catalog price to allow for buying. The agent will never buy at a price higher than the catalog price by more than this margin (relative to catalog price).

- selling_margin

The margin from the catalog price to allow for selling. The agent will never sell at a price lower than the catalog price by more than this margin (relative to catalog price).

Remarks:

• Attributes section describes the attributes that can be used to construct the component (passed to its __init__ method).

• Provides section describes the attributes (methods, properties, data-members) made available by this component directly. Note that everything provided by the bases of this components are also available to the agent (Check the Bases section above for all the bases of this component).

• Requires section describes any requirements from the agent using this component. It defines a set of methods or properties/data-members that must exist in the agent that uses this component. These requirement are usually implemented as abstract methods in the component

• Abstract section describes abstract methods that MUST be implemented by any descendant of this component.

• Hooks Into section describes the methods this component overrides calling super () which allows other components to hook into the same method (by overriding it). Usually callbacks starting with on_ are hooked into this way.

• Overrides section describes the methods this component overrides without calling super effectively disallowing any other components after it in the MRO to call this method. Usually methods that do some action (i.e. not starting with on_) are overridden this way.