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Report

Teaser, summary, work performed and final results

Periodic Reporting for period 1 - HPA4CF (Collectiveware: Highly-parallel algorithms for collective intelligence)

Teaser

Summary

In recent years, more and more scenarios pose challenges that require Collective Intelligence solutions based on networks (e.g., knowledge networks, social networks, sensor networks), enabling novel ways of social production, promoting innovation and encouraging the exchange of ideas. New forms of collaborative consumption, collaborative making, collaborative production, all rely on a common and fundamental task, i.e., the formation of collectives. Hence, the computation of policies for Collective Intelligence scenarios plays a crucial role in many real-world applications domains, where groups need to be formed in order to complete tasks and achieve costs reductions, both for individuals and for the entire collective. During my MSCA project I tackled two prominent Collective Intelligence scenarios, namely shared mobility and cooperative learning, developing novel AI optimisation algorithms that can deal with the associated computational challenges, quantify the potential benefits, and, ultimately, help policy makers to take better collective decisions.

Work performed

Computing Sustainable Policies for Online Ridesharing

With the growing popularity of the shared economy, ridesharing services are called to transform urban mobility. Indeed, shared mobility is expected to have major environmental and economic impacts by reducing pollution (e.g., CO2 emissions and noise pollution), traffic congestion, and energy consumption]. Furthermore, ridesharing is said to become even much more attractive in a future world of self-driving cars, and spur a transition from solo driving to mass transit. Along these lines, the growing efforts in research and technology, together with novel incentive policies for shared mobility and efficient market designs will play a crucial role for the exploitation of the full potential of ridesharing, and for the revolution of the current practice in personal transportation. Despite its major potential benefits, ridesharing is nowadays still far from being widely used (according to the US Census Bureau, only around 9.3% of commuters in the US carpooled to work, compared to 76.4% who drove alone). Because of the growing concerns about climate change, congestion, and oil dependency, further research is needed to understand the benefits of ridesharing, while also considering time and privacy requirements of users. One of the reasons of this insufficient engagement by the public is the lack of effective incentive policies by regulatory authorities, who do not possess the necessary computational tools capable of quantifying the costs and the benefits of a given ridesharing adoption policy. During my project I addressed these issues by (i) developing a novel algorithm that makes large-scale, realtime ridesharing technologically feasible; and (ii) exhaustively quantifying the impact of different ridesharing policies in terms of environmental benefits (i.e., reduction of CO2 emissions, noise pollution, and traffic congestion) and quality of service (QoS) for the users. Our analysis on a publicly available real-world dataset shows that major societal benefits are expected from deploying sustainable ridesharing policies, depending on the trade-off between environmental benefits and QoS. Thus, when environmental benefits are prioritised, our approach can yield a 70.78% reduction in CO2 emissions (corresponding to up to 107.18 Tons per day) and a 80.08% reduction in traffic congestion, while achieving full occupancy on shared rides. Notice that our approach also stands as valuable computational tool for policy makers concerned with shared mobility. Our approach provides the means to estimate the expected societal benefits of ridesharing from existing travelling data records. Thus, policy makers can leverage on our approach in order to come up with action plans aimed at achieving target societal impacts within some time frame, which is the common practice in policy making (e.g., refer to the New York State Energy Plan).

Synergistic Team Formation Policies for Cooperative Learning

Similarly, modern educational institutions can implement cooperative and active learning policies that engage students in teams to participate in all learning activities in the classroom. Nonetheless, not all teams facilitate learning. For cooperative learning to be effective, students have to be grouped by carefully taking into account their competencies, personality traits, and gender. Several studies in the literature show a positive correlation between certain personality traits and team composition, and that, in order to increase team performance, team members should be heterogeneous in their individual characteristics. Even though much research in the industrial, organisational, and educational psychology fields investigated what the predictors of team success are, to the best of our knowledge, there are no computational tools that allow to form groups so as to exploit the synergies among members and to ensure that competences are adequately combined to complete a given task. To address this shortcomi

Final results

Our work on online ridesharing opens up several interesting research lines, mainly regarding the design of incentive plans and pricing mechanisms that foster the adoption of ridesharing, increase the adoption rate, and the extension of our approach to incorporate the usersâ€™ preferences as a further optimisation criterion (in addition to environmental benefits and QoS). Furthermore, our research on cooperative learning paves the way for the implementation of cooperative learning policies that help educators and promote diversity and engagement among students.