Christopher Young

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10ranked-venue papers

6as first author

0since 2021 · last 2019

0000-0002-7441-6944ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 5 · 5 first-authorApplied, interdisciplinary, general and emerging computing · 5 · 5 first-authorGraphics, computer vision, multimedia, augmented reality and games · 4 · 1 first-authorSystems, architecture and hardware · 1Human-computer interaction and ubiquitous computing · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer architecture, parallel and distributed computing, and storage systems 1 paper		High-performance computing · 61% Parallel and multicore computing · 30% Performance modeling and evaluation · 9%
Computer graphics and multimedia 2 papers		Rendering · 72% Virtual and augmented reality · 28%

Topics — the 8 heaviest of 9, each with the papers that count most for it

Topic	Weight	Papers	Last	Evidence papers
High-performance computing application porting	0.4	1	2019	Preparation and optimization of a diverse workload for a large-scale heterogeneous system · SC 2019
Parallel and multicore computing programming models	0.4	1	2019	Preparation and optimization of a diverse workload for a large-scale heterogeneous system · SC 2019
Virtual and augmented reality augmented reality	0.2	2	2011	A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design · IEEE Trans. Vis. Comput. Graph. 2011 Virtual Heliodon: Spatially Augmented Reality for Architectural Daylighting Design · VR 2009
Rendering global illumination	0.2	2	2011	A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design · IEEE Trans. Vis. Comput. Graph. 2011 Virtual Heliodon: Spatially Augmented Reality for Architectural Daylighting Design · VR 2009
Rendering hybrid rendering	0.1	1	2011	A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design · IEEE Trans. Vis. Comput. Graph. 2011
Rendering › global illumination interactive global illumination	0.1	1	2011	A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design · IEEE Trans. Vis. Comput. Graph. 2011
Performance modeling and evaluation benchmarking	0.1	1	2019	Preparation and optimization of a diverse workload for a large-scale heterogeneous system · SC 2019
Rendering › global illumination radiosity	0.1	1	2009	Virtual Heliodon: Spatially Augmented Reality for Architectural Daylighting Design · VR 2009

Methods — techniques the papers use, named apart from their topics

shadow volume · 0.2radiosity · 0.1projector calibration · 0.1camera-based 3d reconstruction · 0.1hybrid rendering · 0.1

Year	Publication	Venue	Position
2019	Preparation and optimization of a diverse workload for a large-scale heterogeneous system abstract Productivity from day one on supercomputers that leverage new technologies requires significant preparation. An institution that procures a novel system architecture often lacks sufficient institutional knowledge and skills to prepare for it. Thus, the "Center of Excellence" (CoE) concept has emerged to prepare for systems such as Summit and Sierra, currently the top two systems in the Top 500. This paper documents CoE experiences that prepared a workload of diverse applications and math libraries for a heterogeneous system. We describe our approach to this preparation, including our management and execution strategies, and detail our experiences with and reasons for using different programming approaches. Our early science and performance results show that the project enabled significant early seismic science with up to a l4X throughput increase over Cori. In addition to our successes, we discuss our challenges and failures so others may benefit from our experience. Ian Karlin, Yoonho Park, Bronis R. de Supinski, Bert Still, D. A. Beckingsale, Robert Blake, Tong Chen 0001, Guojing Cong, Carlos H. A. Costa, Johann Dahm, Giacomo Domeniconi, Thomas Epperly, Aaron Fisher, Sara Kokkila Schumacher, Steve H. Langer, Hai Le, Naoya Maruyama, Xinyu Que, David F. Richards, Björn Sjögreen, Jonathan Wong, Carol S. Woodward, Ulrike Meier Yang, Bob Anderson, David Appelhans, Levi Barnes, Peter D. Barnes Jr., Sorin Bastea, David Böhme, Jamie A. Bramwell, James M. Brase, José R. Brunheroto, Barry Chen, Charway R. Cooper, Tony Degroot, Robert D. Falgout, Todd Gamblin, David J. Gardner, James N. Glosli, John A. Gunnels, Max P. Katz, Tzanio V. Kolev, I-Feng W. Kuo, Matthew P. LeGendre, Pei-Hung Lin, Shelby Lockhart, Kathleen McCandless, Claudia Misale, Jaime H. Moreno, Rob Neely, Jarom Nelson, Rao Nimmakayala, Kathryn M. O'Brien, Kevin O'Brien, Ramesh Pankajakshan, Roger A. Pearce, Slaven Peles, Phil Regier, Steven C. Rennich, Martin Schulz 0001, Howard Scott, James C. Sexton, Kathleen Shoga, Shiv Sundram, Guillaume Thomas-Collignon, Brian Van Essen, Alexey Voronin, Bob Walkup, Chris Ward, Hui-Fang Wen, Daniel A. White, Christopher Young, Cyril Zeller, Edward Zywicz	SC	77
2018	Toward Always-On Mobile Object Detection: Energy Versus Performance Tradeoffs for Embedded HOG Feature Extraction abstract This paper studies the effects of front-end imager parameters on object detection performance and energy consumption. A custom version of histograms of oriented gradient (HOG) features based on 2-b pixel ratios is presented and shown to achieve superior object detection performance for the same estimated energy compared with conventional HOG features. A front-end hardware implementation capable of extracting these features at multiple scales is proposed, and a system-level energy analysis is performed. This energy analysis suggests a potential 19× reduction in I/O energy and a 3.3× reduction in back-end detection energy compared with conventional object detection pipelines. Alex Omid-Zohoor, Christopher Young, David Ta, Boris Murmann	IEEE Trans. Circuits Syst. Video Technol.	2
2017	Children's Reasoning about Geometric Footprints Christopher Young, Alana Dulaney-Foley, Susan C. Levine	CogSci	1
2017	The Structure of Young Children's Numerical and Spatial Abilities Christopher Young, Stephen Raudenbush, Brittney Fraumeni, Susan C. Levine	CogSci	1
2014	Gesture and Speech Input are Interlocking Pieces: The Development of Children's Jigsaw Puzzle Assembly Ability Christopher Young, Erica A. Cartmill, Susan C. Levine, Susan Goldin-Meadow	CogSci	1
2014	Linear Estimation and Mental Rotation Predict Children's Early Math Abilities Christopher Young, Susan C. Levine, Kelly S. Mix	CogSci	1
2011	Linear Numerical Magnitude Representations Aid Memory for Single Numbers Christopher Young, Francesca Marciani, John Opfer	CogSci	1
2011	A Spatially Augmented Reality Sketching Interface for Architectural Daylighting Design abstract We present an application of interactive global illumination and spatially augmented reality to architectural daylight modeling that allows designers to explore alternative designs and new technologies for improving the sustainability of their buildings. Images of a model in the real world, captured by a camera above the scene, are processed to construct a virtual 3D model. To achieve interactive rendering rates, we use a hybrid rendering technique, leveraging radiosity to simulate the interreflectance between diffuse patches and shadow volumes to generate per-pixel direct illumination. The rendered images are then projected on the real model by four calibrated projectors to help users study the daylighting illumination. The virtual heliodon is a physical design environment in which multiple designers, a designer and a client, or a teacher and students can gather to experience animated visualizations of the natural illumination within a proposed design by controlling the time of day, season, and climate. Furthermore, participants may interactively redesign the geometry and materials of the space by manipulating physical design elements and see the updated lighting simulation. Yu Sheng, Theodore C. Yapo, Christopher Young, Barbara Cutler	IEEE Trans. Vis. Comput. Graph.	3
2009	Virtual Heliodon: Spatially Augmented Reality for Architectural Daylighting Design abstract We present an application of interactive global illumination and spatially augmented reality to architectural daylight modeling that allows designers to explore alternative designs and new technologies for improving the sustainability of their buildings. Images of a model in the real world, captured by a camera above the scene, are processed to construct a virtual 3D model. To achieve interactive rendering rates, we use a hybrid rendering technique, leveraging radiosity to simulate the inter-reflectance between diffuse patches and shadow volumes to generate per-pixel direct illumination. The rendered images are then projected on the real model by four calibrated projectors to help users study the daylighting illumination. The virtual heliodon is a physical design environment in which multiple designers, a designer and a client, or a teacher and students can gather to experience animated visualizations of the natural illumination within a proposed design by controlling the time of day, season, and climate. Furthermore, participants may interactively redesign the geometry and materials of the space by manipulating physical design elements and see the updated lighting simulation. Yu Sheng, Theodore C. Yapo, Christopher Young, Barbara Cutler	VR	3
1992	Improvement in finite wordlength FIR digital filter design by cascading abstract The design of finite/wordlength finite impulse response, (FIR) digital filters is of much interest and importance in practical digital systems. In fixed-point implementations of digital filters, the designer is allowed only a finite number of bits for each coefficient. In general, the best choice for the finite wordlength coefficients is neither the truncated nor rounded infinite-precision values. A new method for quantizing cascaded subfilters to produce an overall filter that improves upon or compares favorably with the optimal quantized direct-form implementation is introduced. In particular, this method enhances performance in designs requiring deep stopband suppression, which is very common in applications. By cascading subfilters, it is possible to improve the stopband suppression. A difficulty with designing cascaded subfilters is the nonlinearity of the problem. A Taylor series approximation is used to develop a linear integer program for the optimal cascaded coefficients, improving the stopband suppression with no additional loss in the passband deviation.> Christopher Young, Douglas L. Jones	ICASSP	1