Learn More
Amazon Mechanical Turk (MTurk) is a crowdsourcing system in which tasks are distributed to a population of thousands of anonymous workers for completion. This system is increasingly popular with researchers and developers. Here we extend previous studies of the demographics and usage behaviors of MTurk workers. We describe how the worker population has(More)
The ability to learn is a potentially compelling and important quality for interactive synthetic characters. To that end, we describe a practical approach to real-time learning for synthetic characters. Our implementation is grounded in the techniques of reinforcement learning and informed by insights from animal training. It simplifies the learning task(More)
[Motivation:] Environmental sustainability is an important concern. Information and communication technology (ICT) innovation is ambivalently positioned with regard to our rapid development and shortening innovation cycles. On one hand, information technology facilitates the (excessive) usage of resources. On the other hand, ICT can also help to(More)
There are significant differences between the art of animating for linear media such as film and video and the art of animating for interactive media such as computer and video games. In particular, these differences arise from the shift from linear characters to autonomous interactive characters. This article describes differences between linear animation(More)
We have created an automatic cinematography system for interactive virtual environments. This system controls a virtual camera and lights in a three-dimensional virtual world inhabited by a group of autonomous and user-controlled characters. By dynamically changing the camera and the lights, our system facilitates the interaction of human participants with(More)
Many software systems today control large-scale sociotechnical systems. These systems aren't just entangled with the environment but also with our dwindling resources and mostly unsustainable way of living, while the planet's population continues to grow. Dealing with sustainability requirements and systematically supporting their elicitation, analysis, and(More)
Research in many fields argues that contemporary global industrial civilization will not persist indefinitely in its current form, and may, like many past human societies, eventually collapse. Arguments in environmental studies, anthropology, and other fields indicate that this transformation could begin within the next half-century. While imminent collapse(More)
This paper describes a mobile music player, PersonalSoundtrack, that makes real-time choices of music based on user pace. Standard playlists are non-interactive streams of previously chosen music, insensitive to user context and requiring explicit user input to find suitable songs. The context-aware mobile music player described here works with its owner's(More)
Current software engineering practices have significant effects on the environment. Examples include e-waste from computers made obsolete due to software upgrades, and changes in the power demands of new versions of software. Sustainable software engineering aims to create reliable, long-lasting software that meets the needs of users while reducing(More)