References of "Baldoni, Matteo"
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See detailEthics by Design: Necessity or Curse?
Dignum, Virginia; Baldoni, Matteo; Baroglio, Cristina et al

in Proceedings of the 2018 AAAI/ACM Conference on AI, Ethics, and Society AIES 2018, New Orleans, LA, USA, February 02-03, 2018 (2018)

Ethics by Design concerns the methods, algorithms and tools needed to endow autonomous agents with the capability to reason about the ethical aspects of their decisions, and the methods, tools and ... [more ▼]

Ethics by Design concerns the methods, algorithms and tools needed to endow autonomous agents with the capability to reason about the ethical aspects of their decisions, and the methods, tools and formalisms to guarantee that an agent's behavior remains within given moral bounds. In this context some questions arise: How and to what extent can agents understand the social reality in which they operate, and the other intelligences (AI, animals and humans) with which they co-exist? What are the ethical concerns in the emerging new forms of society, and how do we ensure the human dimension is upheld in interactions and decisions by autonomous agents?. But overall, the central question is: "Can we, and should we, build ethically-aware agents?" This paper presents initial conclusions from the thematic day of the same name held at PRIMA2017, on October 2017. [less ▲]

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See detailHow to Program Organizations and Roles in the JADE Framework
Baldoni, Matteo; Boella, Guido UL; Genovese, Valerio UL et al

in Multiagent System Technologies, 6th German Conference, MATES 2008, Kaiserslautern, Germany, September 23-26, 2008. Proceedings (2008)

The organization metaphor is often used in the design and implementation of multiagent systems. However, few agent programming languages provide facilities to define them. Several frameworks are proposed ... [more ▼]

The organization metaphor is often used in the design and implementation of multiagent systems. However, few agent programming languages provide facilities to define them. Several frameworks are proposed to coordinate MAS with organizations, but they are not programmable with general purpose languages. In this paper we extend the JADE framework with primitives to program in Java organizations structured in roles, and to enable agents to play roles in organizations. Roles facilitate the coordination of agents inside an organization and offer new abilities (powers) in the context of organizations to the agents which satisfy the requirements necessary to play the roles. To program organizations and roles, we provide primitives which enable an agent to enact a new role in an organization to invoke powers. [less ▲]

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See detailAdding Organizations and Roles as Primitives to JADE Framework
Genovese, Valerio UL; Grenna, Roberto; van der Torre, Leon UL et al

in Proceedings of the 3rd International Workshop on Normative Multiagent Systems, NorMAS'08 (2008)

The organization metaphor is often used in the design and implementation of multiagent systems. However, few agent programming languages provide facilities to define them. Several frameworks are proposed ... [more ▼]

The organization metaphor is often used in the design and implementation of multiagent systems. However, few agent programming languages provide facilities to define them. Several frameworks are proposed to coordinate MAS with organizations, but they are not programmable with general purpose languages. In this paper we extend the JADE framework with primitives to program in Java organizations structured in roles and to enable agents to play roles in organizations. Roles facilitate the coordination of agents inside an organization and give new abilities in the context of organizations, called powers, to the agents which satisfy the requirements necessary to play the roles. As primitives to program organizations and roles we provide classes and protocols which enable an agent to enact a new role in an organization and to interact with the role by invoking the execution of powers, and to receive new goals to be fulfilled. Roles have state and behaviour, thus, they are instances of classes and are strictly connected with the organization offering them. Since roles and organizations can be on a different platform with respect to the role player, the communication with them happens via protocols. Moreover, since, besides using protocols, roles and organizations can have complex behaviours, they are implemented by extending the JADE agent class. [less ▲]

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See detailInteraction among objects via roles: sessions and affordances in powerJava
Baldoni, Matteo; Boella, Guido; van der Torre, Leon UL

in Procs. of Principles and Practice of Programming in Java (PPPJ'06) (2006)

In this paper we present a new vision in object oriented programming languages where the objects' attributes and operations depend on who is interacting with them. This vision is based on a new definition ... [more ▼]

In this paper we present a new vision in object oriented programming languages where the objects' attributes and operations depend on who is interacting with them. This vision is based on a new definition of the notion of role, which is inspired to the concept of affordance as developed in cognitive science. The current vision of objects considers attributes and operations as being objective and independent from the interaction. In contrast, in our model interaction with an object always passes through a role played by another object manipulating it. The advantage is that roles allow to define operations whose behavior changes depending on the role and the requirements it imposes, and to define session aware interaction, where the role maintains the state of the interaction with an object. Finally, we discuss how roles as affordances can be introduced in Java, building on our language powerJava. [less ▲]

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See detailBridging Agent Theory and Object Orientation: Importing Social Roles in Object Oriented Languages
Baldoni, Matteo; Boella, Guido; van der Torre, Leon UL

in Programming Multi-Agent Systems, Third International Workshop, ProMAS 2005 (2006)

Social roles structure social institutions like organizations in Multi-Agent Systems (MAS). In this paper we describe how to introduce the notion of social role in programming languages. To avoid the ... [more ▼]

Social roles structure social institutions like organizations in Multi-Agent Systems (MAS). In this paper we describe how to introduce the notion of social role in programming languages. To avoid the commitment to a particular agent model, architecture or language, we decided to extend Java, the most prominent object oriented programming language, by adding social roles. The obtained language allows an easier implementation of MAS’s w.r.t. the Java language. We also show that many important properties of social roles, studied in the MAS field, can be applied to objects. Two are the essential features of social roles according to an analysis reported in the paper: social roles are defined by other entities (called institutions), and when an agent plays a role it is endowed with powers by the institution that defines it. We interpret these two features into the object oriented paradigm as the fact that social roles are objects, which are defined in and exist only inside other objects (corresponding to institutions), and that, through a role, external objects playing the role can access to the object (institution) the role belongs to. [less ▲]

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See detailRoles as a Coordination Construct: Introducing powerJava
Baldoni, Matteo; Boella, Guido; van der Torre, Leon UL

in Electronic Notes in Theoretical Computer Science (2006), 150(1), 929

In this paper we apply the role metaphor to coordination. Roles are used in sociology as a way to structure organizations and to coordinate their behavior. In our model, the features of roles are their ... [more ▼]

In this paper we apply the role metaphor to coordination. Roles are used in sociology as a way to structure organizations and to coordinate their behavior. In our model, the features of roles are their dependence on an institution, and the powers they assign to players of roles. The institution represents an environment where the components interact with each other by using the powers attributed to them by the roles they play, even when they do not know each other. The interaction between a component playing a role and the role is performed via interfaces stating the requirements to play a role, and which powers are attributed by roles. Roles encapsulate their players' capabilities to interact with the institution and with the other roles, thus achieving separation of concerns between computation and coordination. The institution acts as a coordinator which manages the interactions among components by acting on the roles they play, thus achieving a form of exogenous coordination. As an example, we introduce the role construct in the Java programming language, providing a precompiler for it. In order to better explain the proposal, we show how to use the role construct as a coordination means by applying it to a dining philosophers problem extended with dynamic reconfiguration. [less ▲]

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See detailI fondamenti ontologici dei linguaggi di programmazione orientati agli oggetti: i casi delle relazioni e dei ruoli
Baldoni, Matteo; Boella, Guido; van der Torre, Leon UL

in networks : rivista di filosofia dell'intelligenza artificiale e scienze cognitive = a journal of the philosophy of artificial intelligence and cognitive sciences (2006), 6

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See detailpowerJava: ontologically founded roles in object oriented programming language
Baldoni, Matteo; Boella, Guido; van der Torre, Leon UL

in Procs. of ACM Symposium on Applied Computing (SAC'06), Track Object Oriented Programming Languages and Systems (OOPS'06) (2006)

In this paper we introduce a new view on roles in Object Oriented programming languages, based on an ontological analysis of roles. A role is always associated with an object instance playing the role and ... [more ▼]

In this paper we introduce a new view on roles in Object Oriented programming languages, based on an ontological analysis of roles. A role is always associated with an object instance playing the role and also to an object instance (its institution) which represents its context. The definition of a role depends on the definition of the institution. This property allows to endow role-players with powers that can modify the state of the institution and of the other roles defined in it. As an example, we introduce a role construct in Java, where the abolve features are interpreted as follows. Roles are implemented as classes, which can be instantiated only in presence of an instance of the player and of an instance of an institution. The definition of a class implementing a role is included in the class of the institution, the role belongs to. Powers are methods which can access private fields and methods of the institution they belong to, and of the other roles of the same institution [less ▲]

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