Supporting interoperability frameworks in the UK public sector

This paper describes the design and implementation of a component based software application, which alleviates the problem of software interoperability in the UK public sector. We analyze the current interoperability frameworks across the United Kingdom (UK) and European Union (EU) and propose a software solution that enhances such interoperability initiatives. Our example scenario is placed within a UK local authority, which shares data stored within the Police databases, for making efficient and more accurate operational decisions. The prototype, implemented as a J2EE application and built upon existing databases, proves our concept that it is possible to achieve data and application interoperability without integrating data sources and without using XML formats for data sharing.

Genetic programming for the minimum time swing up and balance control acrobot problem

This work describes how genetic programming is applied to evolving controllers for the minimum time swing up and inverted balance tasks of the continuous state and action: limited torque acrobot. The best swing-up controller is able to swing the acrobot up to a position very close to the inverted ‘handstand’ position in a very short time, shorter than that of Coulom (2004), who applied the same constraints on the applied torque values, and to take only slightly longer than the approach by Lai et al. (2009) where far larger torque values were allowed. The best balance controller is able to balance the acrobot in the inverted position when starting from the balance position for the length of time used in the fitness function in all runs; furthermore, 47 out of 50 of the runs evolve controllers able to maintain the balance position for an extended period, an improvement on the balance controllers generated by Dracopoulos and Nichols (2012), which this paper is extended from. The most successful balance controller is also able to balance the acrobot when starting from a small offset from the balance position for this extended period.