This paper investigates a user model for a system which automatically generates interactive stories. These stories are focused on dilemmas in order to create dramatic tension. The system is provided with knowledge of generic story actions and dilemmas based on those clichés encountered in many of today’s soap operas. These dilemmas and story actions are instantiated for the given storyworld and...

In this work, we present two Key-Policy Attribute-Based Encryption (ABE) schemes for some subclass of circuits based on the Learning with Error (LWE) assumption. Our constructions are selectively secure in the standard model. More specifically, our first construction supports a subclass of circuits with polynomially bounded depth. We call this subclass the OR-restricted circuits which means tha...

We construct an efficient identity based encryption system based on the standard learning with errors (LWE) problem. Our security proof holds in the standard model. The key step in the construction is a family of lattices for which there are two distinct trapdoors for finding short vectors. One trapdoor enables the real system to generate short vectors in all lattices in the family. The other t...

The paper discusses the notion of redesign, and identifies three dilemmas related to post implementation change of information systems. The dilemmas are 1) system development aims at designing stable computer systems for changing environments, 2) the activities requiring most time and effort are based on the weakest planning and organisation, and 3) despite the volume of user initiated system c...

Matrix games like Prisoner’s Dilemma have guided research on social dilemmas for decades. However, they necessarily treat the choice to cooperate or defect as an atomic action. In real-world social dilemmas these choices are temporally extended. Cooperativeness is a property that applies to policies, not elementary actions. We introduce sequential social dilemmas that share the mixed incentive ...

A novel low noise trans-impedance amplifier is proposed using low cost 0.18 µm CMOS technology. A resistive-capacitive feedback is used to extend the bandwidth of the amplifier. As the structure is inductor less, it is suitable for low cost integrated optical interconnects. In this paper Improved Particle Swarm Optimization have applied to determine optimal trans-resistance and noise of propose...

Given the low access rate and high attrition rate of Aboriginal and Torres Strait Islander students at universities across Australia, it is reasonable to consider them as ‘at risk’ students when it comes to higher education. It is imperative that universities find a way of providing learning opportunities that lead to successful completion of the programs studied. This paper explores the risks ...