Andrei Ciortea
Title
Prof. Dr.
Last Name
Ciortea
First name
Andrei
Email
andrei.ciortea@unisg.ch
Phone
+41 71 224 27 63
33 results
Now showing 1 - 10 of 33
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Item type:Publication, Signifiers for conveying and exploiting affordances: from human-computer interaction to multi-agent systems(Springer Science and Business Media LLC, 2024-04-17); ; ; The ecological psychologist James J. Gibson defined the notion of affordances to refer to what action possibilities environments offer to animals. In this paper, we show how (artificial) agents can discover and exploit affordances in a Multi-Agent System (MAS) environment to achieve their goals. To indicate to agents what affordances are present in their environment and whether it is likely that these may help the agents to achieve their objectives, the environment may expose signifiers while taking into account the current situation of the environment and of the agent. On this basis, we define a Signifier Exposure Mechanism that is used by the environment to compute which signifiers should be exposed to agents in order to permit agents to only perceive information about affordances that are likely to be relevant to them, and thereby increase their interaction efficiency. If this is successful, agents can interact with partially observable environments more efficiently because the signifiers indicate the affordances they can exploit towards given purposes. Signifiers thereby facilitate the exploration and the exploitation of MAS environments. Implementations of signifiers and of the Signifier Exposure Mechanism are presented within the context of a Hypermedia Multi-Agent System, and the utility of this approach is presented through the development of a scenario.Type:journal articleJournal:Annals of Mathematics and Artificial IntelligenceVolume:92Issue:4Scopus© Citations 5 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Introduction to the Special Issue on Multiagent Systems and Services in the Internet of ThingsType:journal articleJournal:ACM Transactions on Internet TechnologyVolume:22Issue:4DOI:10.1145/3584744 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, The refashion circular design strategy - Changing the way we design and manufacture clothesApproximately 65% of a garment's climate impact stems from fabric production. With 53 M tons of fibre produced every year and 87% ending in landfills, the fashion industry is polluting and wasting precious resources. Therefore, waste prevention and recapturing value become essential. Our research explores the development of a new circular design strategy (CDS)-Refashion, for service innovation through a design thinking process. Grounded in sustainable design strategies and advanced manufacturing technology, the Refashion CDS aims to enable multiple reutilization of fabric before fibre recycling. This is showcased via a proof-of-concept collection launched on the market in 2022, where three pre-designed multifunctional fabric blocks create 11 different garments, accompanied by a diagram showcasing the product-service system's closed-loop material flow.Type:journal articleJournal:Journal of Design StudiesVolume:88Scopus© Citations 18 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A Step Toward Semantic Content Negotiation(2022-09-28); ; Content negotiation aims at enabling a server to provide a client with a representation of a resource that meets its needs. However, client and server might desire to negotiate constraints that go beyond the media type or language of the alternative representation. This is especially true in the Semantic Web, as a resource can be described with a single media type, but with different vocabularies (FOAF, schema.org, etc.), and may match specific patterns. In this paper, we propose an approach to increase the flexibility when negotiating a representation between client and server. Our approach follows the goals of the World Wide Web and uses a set of existing technologies: SHACL and profile-based negotiation. We define the mechanism (in terms of protocol and algorithm) for clients to announce their expectations and for servers to react and respond to them. We then explain, through a use case, how the same approach could be used in Web-based Multi-Agent Systems to help autonomous agents achieve their goals on the Web.Type:journal articleJournal:23rd International Conference on Knowledge Engineering and Knowledge Management - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Machine Capacity of Judgment: An interdisciplinary approach for making machine intelligence transparent to end-usersIntelligent machines surprise us with unexpected behaviors, giving rise to the question of whether such machines exhibit autonomous judgment. With judgment comes (the allocation of) responsibility. While it can be dangerous or misplaced to shift responsibility from humans to intelligent machines, current frameworks to think about responsible and transparent distribution of responsibility between all involved stakeholders are lacking. A more granular understanding of the autonomy exhibited by intelligent machines is needed to promote a more nuanced public discussion and allow laypersons as well as legal experts to think about, categorize, and differentiate among the capacities of artificial agents when distributing responsibility. To tackle this issue, we propose criteria that would support people in assessing the Machine Capacity of Judgment (MCOJ) of artificial agents. We conceive MCOJ drawing from the use of Human Capacity of Judgment (HCOJ) in the legal discourse, where HCOJ criteria are legal abstractions to assess when decision-making and judgment by humans must lead to legally binding actions or inactions under the law. In this article, we show in what way these criteria can be transferred to machines.Type:journal articleJournal:Technology in SocietyVolume:71Scopus© Citations 4 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Improving customer decisions in web-based e-commerce through guerrilla modding(Springer, 2021-12-15); ; Scopus© Citations 8 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Autonomous Search in a Social and Ubiquitous Web(Springer, 2020-06-09); ; Scopus© Citations 6 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Hypermedia to Connect them All - Autonomous Hypermedia Agents and Socio-Technical Interactions(Wiley, 2018-04-13); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Domain-Expert Configuration of Hypermedia Multi-Agent
Systems in Industrial Use Cases; ; Based on the analysis of two real-world use cases for agriculture and manufacturing, we suggest that Hypermedia Multi-Agent Systems (MAS) are a viable option to interconnect and coordinate devices, services, machine-learning systems, and people in industrial scenarios. We propose and implement an architecture based on three components: an infrastructure that manages Web of Things environments and executes Hypermedia MAS, a visual development environment for programming agents, and a goal specification interface for end-users. While the infrastructure manages information flows between the system components and provides an environment for agents, the visual language enables domain experts to configure the behaviour of the system leveraging agent-oriented programming abstractions both at design time and run time, and the goal specification interface permits users to delegate goals to the running Hypermedia MAS while re-using domain vocabulary.Type:conference paper - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Comparing Business Models for Optimizing Turnover in Electric Vehicle Charging Stations(IEEE, 2025-06-16);