Douglas M. Carmean

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The power dissipation of modern processors has been rapidly increasing along with increasing transistor count and clock frequencies. At the same time, there is a growing disparity between the maximum power consumption of a processor and the “typical” power consumed by that processor; i.e., power consumed while running typical applications. This trend is the(More)
This paper describes the main features and functions of the Pentium® 4 processor microarchitecture. We present the front-end of the machine, including its new form of instruction cache called the trace cache, and describe the out-of-order execution engine, including a low latency double-pumped arithmetic logic unit (ALU) that runs at 4 GHz. We also discuss(More)
Demand for data storage is growing exponentially, but the capacity of existing storage media is not keeping up. Using DNA to archive data is an attractive possibility because it is extremely dense, with a raw limit of 1 exabyte/mm<sup>3</sup> (109 GB/mm<sup>3</sup>), and long-lasting, with observed half-life of over 500 years. This paper presents an(More)
An interactive system, PIXEE, was developed to promote greater emotional expression in image-based social media. Images shared on social media were projected onto a large interactive display at public events. A multimodal interface displayed the sentiment analysis of images and invited viewers to express their emotional responses. Viewers could adjust the(More)
This design research explored ways to support emotional expression in interactive games played in a public, social setting. Affective gaming has incorporated emotional assessment to tailor feedback during gameplay, but as a result, distills complex emotional states into simple inputs. Our research focused not on measuring affect but on designing games to(More)
This paper describes a system, WeLight, that we developed to facilitate communication. It allows individuals to configure the lights in one another's homes as well as their own. We describe this system and its motivation from exploratory interviews with households using existing connected lighting products. To ease inter-household communication, we(More)
......The “digital universe” (all digital data worldwide) is forecast to grow to more than 16 zettabytes in 2017. Alarmingly, this exponential growth rate easily exceeds our ability to store it, even when accounting for forecast improvements in storage technologies such as tape (185 terabytes) and optical media (1 petabyte). Although not all data requires(More)
An interactive system, PIXEE, was developed to promote greater emotional expression in image-based social media. An interdisciplinary team developed this system and has deployed it as a cultural probe around the world to explore ways that technology can foster emotional connectedness. In this system, images that participants share on social media are(More)
A quantum computer consists of quantum bits (qubits) and a control processor that acts as an interface between the programmer and the qubits. As qubits are very sensitive to noise, they rely on continuous error correction to maintain the correct state. Current proposals rely on software-managed error correction and require large instruction bandwidth, which(More)