Abstract
A necessary feature of social networks is a model of interaction which is followed on the network---some structure which coordinates activity between the participants. These interaction models are typically implicit, making it a challenge to both design and communicate the protocols for interaction and coordination. Electronic institution systems are one of the principal ways in which multi-agent systems engineers address this issue of coordination in complex interactions between groups of agents. In electronic institutions, interaction models can be concisely specified as protocols which encode the norms which computational agents follow. However, the formality and the up-front costs of discovering and choosing to engage with these systems has limited their applicability to human interaction. The vast majority of human (and, increasingly, automated) social interaction is now taking place in social media systems where social norms are softer concepts regulated essentially by the people involved. Being able to leverage the power of electronic institutions in these systems would ease the application of computational intelligence in support of social tasks.We describe a method by which electronic institutions can act in synergy with these sorts of social media streams and, in doing so, we define a ``softer'' style of system that, nevertheless, retains connection to precise specifications of coordination. In addition, we question the tacit assumption that participating agents deliberately join appropriate institutions. Although our method is independent of choice of social media stream (given a few standard characteristics of these) we describe an implementation of the method using Twitter as a target media stream.We illustrate the utility of our approach with an example which benefits from computational coordination, but where the use of a traditional EI would have prohibitive up-front costs. As well as a trace of a synthetic version, we demonstrate the functioning of a complete implementation which can run the example, and discuss how minimal the end-user configuration to setup complex examples can be.
Highlights
Our paper describes “shadow institutions”, a mechanism for combining electronic institutions with selforganised online interaction
Any kind of infrastructural engagement is a barrier to entry; users are bound to their convivial networks of friends and habits, and are reluctant to move to new websites for interaction, let alone download and install architectures or even desktop programs
Not all events will be covered by a protocol, so it is not possible to model the entire event stream as a state machine, and it is not possible to strongly constrain user behaviour, but there is some desire for the kind of structured interactions supported by an electronic institution
Summary
Our paper describes “shadow institutions”, a mechanism for combining electronic institutions with selforganised online interaction. Robertson / Human Computation (2015) 2:2 157 having roles which the actors may play, allowing state to be distributed among the actors without a central authority This decentralisation of state is a crucial feature which allows the institution to work without taking complete control of the actions allowable for each participant. Producing matched structures can be used summarise and classify human behaviour, but the institution can contribute to the interaction, nudging the participants, feeding back the results of calculations and importing knowledge from external sources This way of thinking about institutions expands the range of situations in which they can be applied, providing a route to engagement with human communities at scale. Further sections discuss the implications of the proposal and its relation to other work
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