2020
DOI: 10.1038/s41598-020-73853-z
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Optimal collective decision making: consensus, accuracy and the effects of limited access to information

Abstract: “Knowledge is power”—holds the popular proverb, because knowledge and information is indeed one of the cornerstones of effective decision making, a requisite all living beings face continually. In fact, effective decision making is a matter of life and death, for individuals and groups alike. Furthermore, in case of group decisions, consensus is also often desirable. This latter one has been studied extensively by means of formal (mathematical) tools (in the field of opinion dynamics), while the first requirem… Show more

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Cited by 8 publications
(5 citation statements)
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“…As a general outlook, although here we have focused on the situation in which navigation is performed by a single agent, it would be definitely worth studying the optimization of collective processes by including interactions among multiple agents 207,208 . In fact, cooperation between agents has already been proved useful to improve the overall performance 209,210 , even in the presence of just a few leaders 211,212 who efficiently manage to guide the group towards the achievement of common tasks.…”
Section: Discussionmentioning
confidence: 99%
“…As a general outlook, although here we have focused on the situation in which navigation is performed by a single agent, it would be definitely worth studying the optimization of collective processes by including interactions among multiple agents 207,208 . In fact, cooperation between agents has already been proved useful to improve the overall performance 209,210 , even in the presence of just a few leaders 211,212 who efficiently manage to guide the group towards the achievement of common tasks.…”
Section: Discussionmentioning
confidence: 99%
“…Another very recent paper (van Veen et al, 2020) studies the impact of overload of information on the accuracy and precision in collective decision-making. Berekméri and Zafeiris (2020) focus their attention to the role of the topology of interactions among agents in a collective decision-making process, finding that a fully connected topology promotes consensus, while a hierarchical structure favor accuracy, more than consensus.…”
Section: Related Workmentioning
confidence: 99%
“…In the latter case, the best-of-n problem reduces itself to a symmetry breaking scenario, whereby in the absence of environmental heterogeneities the swarm converges to a random option rather than to the best one (Valentini et al, 2017). Recently, few studies have pointed to the relevance of the individual ability to evaluate the option quality with respect to the collective decision dynamics (Khaluf et al, 2019;Berekméri and Zafeiris 2020). We referred to this ability as "quality awareness".…”
Section: Introductionmentioning
confidence: 99%
“…This is a good overview of the surprise that the unprecedented connectivity among people—primarily driven by various internet-based social media platforms in the early 21st century—brought us unprecedented factions, dissension and fake news [ 2 , 3 ], instead of agreement and conciliation [ 4 , 5 ]. The reasons behind these phenomena are diverse and manifold and, accordingly, are the subject of the most diverse scientific fields from history [ 6 ] through sociology [ 7 ] to computational social science [ 8 , 9 , 10 ].…”
Section: Introductionmentioning
confidence: 99%