Jonathan King Tash

November, 2009
Kontiki, Inc.
tash@alumni.caltech.edu
http://www.alumni.caltech.edu/~tash/
3358 N. Camino La Jicarrilla
Tucson AZ 85712
(520) 320-9970

Employment

Principal Engineer
Kontiki
Principal responsibility for core technology of industry leading system
    for highly scalable distributed internet delivery of data and live streams
Designed and implemented:
algorithms for finding data sources that are optimal with respect to
    network topology and system bandwidth constraints
protocols for secure data discovery and delivery
    with dynamic congestion avoidance and NAT traversal
architecture for client and server delivery system components
As part of VeriSign (former owner of Kontiki):
winner of first annual VeriSign CTO Technical Excellence Award
Co-Founder
LandSonar
Designed and implemented algorithms for:
reverse geocoding GPS vehicle path data
detecting driver speeding incidents (SpeedGauge)
prediction and display of road speeds by time and date (LPS)
Patents:
7,356,392 System and method for evaluating vehicle and operator performance
7,610,145 System and method for determining recommended departure time
Algorithms Designer
Geocast Network Systems
Designed and implemented error correction coding scheme to protect data broadcast
Designed and implemented adaptive priority-based broadcast scheduler
Designed content and user aware cache management system
Codesigned transport protocol and DSP algorithms
Patents:
6,560,678 Maintaining information variety in an information receiving system
6,732,325 Error-correction with limited working storage
7,036,138 Method and apparatus for scheduling broadcast information
7,546,622 Method and apparatus for scheduling broadcast information
Artificial Intelligence Consultant
PersonalGenie
Designed algorithms for:
personalized matching of consumers and products
automated learning of matching parameters
Senior Research Scientist
Adaptive Systems Group, Harlequin
Designed and implemented:
adaptive online scheduler for parallel processing in digital printing (EP2000)
data abstraction tool for large database visualization (Watson)
structured text parser for information extraction (PowerIndexing)
geometric perspective module for improving special effects processing (PanOptica)
Consulted on:
simulation model speedup for catastrophic reinsurance industry
decision-theoretic artificial intelligence training for petroleum industry
Graduate Student Researcher for Professor Zadeh, Computer Science Division, University of California at Berkeley
Graduate Student Instructor
Mathematics: Calculus (UCB)
Philosophy: Logic (UCB)
Physics: Quantum Mechanics (Caltech), Astronomy, Sound (UCSB),
Electricity and Magnetism (graduate, UCB and UCSB)
Research Assistant for Professor Hill, University of Arizona
computer modeling of solar physics (to test general relativity)
implementation of statistical regression models

Computer Skills

Professional programming experience in C, C++, Java, Python, Perl, SQL, Common Lisp, Fortran
Operating system experience in Windows, Unix (several flavors), MacOS

Education

Ph.D. 1996 UC Berkeley Logic and the Methodology of Science
Cand.Phil 1991 UC Berkeley Logic and the Methodology of Science (GPA 4.0)
M.A. 1988 UC Santa Barbara Physics (GPA 4.0)
B.S. 1986 California Institute of Technology Physics and Mathematics (Honors)
Graduate Fellowships: NSF Graduate Fellowship
NASA Graduate Student Researchers Program Fellowship
UCB Regents Fellowship
UCSB Special Fellowship
Undergraduate Scholarships: National Merit Scholarship
Achievement Rewards for College Scientists Scholarship

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