{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T10:49:29Z","timestamp":1782989369164,"version":"3.54.5"},"reference-count":0,"publisher":"IOS Press","isbn-type":[{"value":"9781643686707","type":"electronic"}],"license":[{"start":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T00:00:00Z","timestamp":1782950400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,2]]},"abstract":"<jats:p>There are many debates over what trust means in the context of human-AI interactions. However, this discussion has often lacked formal theories of trust that can provide testable predictions in different domains. To address this, we develop a game-theoretic formalisation of a prominent view that equates trust with reduced monitoring over time, capturing folk psychology intuition of \u201conce I trust you then I don\u2019t have to keep checking what you\u2019re doing\u201d. This provides a behavioural measure of trust \u2013 how often one agent monitors to observe a partner\u2019s action. Using evolutionary game theory, we analyse the effects of trust on the frequency of cooperation between agents in canonical social dilemmas. We show that trust heuristics, which reduce monitoring once frequent cooperation has been observed, facilitate cooperation in two ways. First, when monitoring is costly, trust promotes cooperation in Prisoner\u2019s Dilemmas where the temptation to defect is high. Second, when agents can make errors, trust increases cooperation even in Stag-Hunt coordination interactions. Our results disentangle the effects of trust on cooperation, and provide a trust measure not limited to human-human interactions. We discuss the implications for designing auditing and monitoring systems in human-AI interactions, and for experimentally measuring trust in AI.<\/jats:p>","DOI":"10.3233\/faia260514","type":"book-chapter","created":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T09:57:16Z","timestamp":1782986236000},"source":"Crossref","is-referenced-by-count":0,"title":["Formalising Trust as Reduced Monitoring in Human\u2013AI Interaction"],"prefix":"10.3233","author":[{"given":"Cedric","family":"Perret","sequence":"first","affiliation":[{"name":"University of Lausanne"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"The Anh","family":"Han","sequence":"additional","affiliation":[{"name":"Teesside University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elias","family":"Fern\u00e1ndez Domingos","sequence":"additional","affiliation":[{"name":"Vrije Universiteit Brussel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Theodor","family":"Cimpeanu","sequence":"additional","affiliation":[{"name":"University of Stirling"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon T.","family":"Powers","sequence":"additional","affiliation":[{"name":"University of Stirling"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"7437","container-title":["Frontiers in Artificial Intelligence and Applications","HHAI 2026"],"original-title":[],"link":[{"URL":"https:\/\/ebooks.iospress.nl\/pdf\/doi\/10.3233\/FAIA260514","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T09:57:17Z","timestamp":1782986237000},"score":1,"resource":{"primary":{"URL":"https:\/\/ebooks.iospress.nl\/doi\/10.3233\/FAIA260514"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,2]]},"ISBN":["9781643686707"],"references-count":0,"URL":"https:\/\/doi.org\/10.3233\/faia260514","relation":{},"ISSN":["0922-6389","1879-8314"],"issn-type":[{"value":"0922-6389","type":"print"},{"value":"1879-8314","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,2]]}}}