David Stoutamire
david@stoutamire.com dps@kavsports.com (650) 248 2866
Summary
Systems perspective at all levels, from management and architecture down to the nuts and bolts of compilation, runtimes, hardware and materials. I enjoy problems that require vision across disciplines to solve.
KAV Sports
CTO 2018 - present	Hardware and software platform for custom 3d printed helmets, including anatomical metrology, modelling, slicing, manufacturing and testing.
NWT Corporation
Consultant 2017 - 2018	Developed interferometry hardware and software to map nuclear fuel rod corrosion at micron scale under radioactive, underwater, turbulent conditions.
Experience at Google
Senior Staff Engineer 2006 - 2010	Led video and book search teams. Managed engineers, developed metrics, prototyped algorithms, and deployed production code handling billions of clicks per day at high availability.
	Video search including Youtube and integration across Google. Special requirements included DMCA, spam, inappropriate and duplicate content.
	Book search including books.google.com and integration across Google. Special requirements included publisher viewability, copyright, and OCR.
Staff Engineer 2004 - 2006	Applied massively distributed machine learning algorithms to user logs.
Experience at Sun Microsystems
Senior Staff Engineer 2001 - 2004	Lead for Java performance. Designed and implemented parallel garbage collection, resource management, and noninvasive instrumentation. Created performance tracking and analysis tools and methodology. Conference presence.
Engineering Manager 1998 - 2001	Managed just-in-time compiler and performance teams delivering the fastest Java virtual machines across platforms and processors.
Staff Engineer 1997 - 1998	Maintained compiler, virtual machine, libraries and specifications; deployed genericity in Java type system.
	Selected paper: Adding Genericity to the Java Programming Language, G. Bracha, M. Odersky, D. Stoutamire and P. Wadler, Object-Oriented Programming Systems, Languages, and Applications (OOPSLA '98), Oct. 1998.
Educational Experience
International Computer Science Institute Technical Staff 1995	Managed Sather language group, including design, software releases, documentation, web presence and conference representation.
	Selected paper: Iteration Abstraction in Sather, S. Murer, S. Omohundro, D. Stoutamire and C. Szyperski, Transactions on Programming Languages and Systems, Vol. 18, No. 1, Jan 1996 p. 1-15.
University of California at Berkeley Research Assistant 1992 - 1997	Sather language design and specification; wrote compiler, libraries, code generation and runtime. Bayesian and neural net hardware and software. Computational neurobiology.
	PhD thesis on performance of memory hierarchies. Portable, Modular Expression of Locality, D. Stoutamire, University of California at Berkeley, 1997.
Case Western Reserve University Teaching Assistant 1990 - 1992	Graduate numerical methods, VLSI, and hardware systems courses.
	MS thesis on machine learning and game play. Machine Learning, Game Play, and Go, D. Stoutamire, Center for Automation and Intelligent Systems Research TR 91-128, Case Western Reserve University, 1991.
University of Akron Student Assistant, Consultant 1987 - 1990	Code generation for tensor analysis of materials. Taught. Administered mainframes and Sun workstations.
	BS Computer Science, 1989.
Patents at KAV
3D integration of padding, energy management, shell and attachments	US-12004584-B2 Protective headgear with integrally-formed layer
3D printed bicycle helmet with constant force pad system	US-20230119234-A1 Helmet Structures and Methods
Living hinge clip for face cage	US-20220022589-A1 Helmet with Face Cage Push Clip
3D printed hockey helmet with integrated energy management	US-20200138141-A1 Personalized Protective Headgear
Patent at NWT / EPRI
Interferometry and algorithms for measurement of corrosion on nuclear fuel rod surfaces at a distance under water	US-20210389124-A1 Method for measuring surface characteristics in optically distorting media
Patents at Google
Fast convergence of logistic regressions with millions of variables across thousands of machines.	US-7730074-B1 Accelerated large-scale optimization
Algorithms to predict what videos users want to watch, key to YouTube's explosive growth.	US-8972392-B2 User interaction based related digital content items
	US-8838649-B1 Determining reachability
	US-8650203-B1 Iterated related item discovery
	US-9088808-B1 User interaction based related video
	US-9152708-B1 Target-video specific co-watched video clusters
Algorithms for managing spam - the ugly side of explosive growth.	US-8572073-B1 Spam detection for user-generated multimedia items based on appearance in popular queries
	US-9208157-B1 Spam detection for user-generated multimedia items based on concept clustering
	US-8752184-B1 Spam detection for user-generated multimedia items based on keyword stuffing
General techniques for search result quality.	US-8832083-B1 Combining user feedback
	US-8903812-B1 Query independent quality signals
Patents at Sun Microsystems
Java can grow while remaining both binary and API compatible, makes Android possible.	US-6018628-A Method of implementing parameterized types to be compatible with existing unparameterized libraries
Display cache locality using Hilbert curves.	US-6211889-B1 Method and apparatus for visualizing locality within an address space
Optimize most objects won't require synchronization.	US-6487652-B1 Method and apparatus for speculatively locking objects in an object-based system
Improve cache performance by dynamically reordering objects and compressing low entropy fields.	US-6594678-B1 Methods and apparatus for improving locality of reference through memory management
	US-6728852-B1 Methods and apparatus for reducing heap size through adaptive object representation
First parallel garbage collection algorithm using only two passes.	US-7389395-B1 Split-reference, two-pass mark-compaction
References on request.