## WESTCHESTER MATH AND PHYSICS

### Tutoring for all high school and college students in Westchester County

### 914-236-4268 sid@westchestermath.com

### Curriculum Vitae

__Contact Information__

- Office:
**914.236.4268** - Fax: 914.861.5119
- Mobile: 914.325.1111
- Email:
**sid@westchestermath.com** - Website:
**Westchester Math and Physics**

__Education__

- The University of Michigan, Ann Arbor, MI
- PhD, Mathematics, Rackham Graduate School, August, 1974
- MS, Mathematics, Rackham Graduate School, May 1970
- BS, Mathematics, Honors College, May 1969
- High Distinction and Highest Honors in Mathematics

__Academic Honors__

- National Science Foundation Graduate Fellowship
- James B. Angell scholar (3 times)
- Branstrom Freshman Award
- Junior and Senior Honors
- University of Michigan Regents Scholarship
- Michigan Higher Education Association Scholarship

__Memberships__

__Research Experience__

- Westchester Math and Physics, 2009-present
- Founder and owner

- IBM TJ Watson Research Center, Yorktown Heights, NY, 1973-2009
- Manager, Stochastic Analysis Department, 2000-2009
- Assistant to the Vice President of Systems, 1992-2000
- Manager, Communications Network Analysis Department, 1980-1992
- Program Manager, Corporate Recruiting Systems, 1979-1980
- Manager, Corporate PhD Program, 1976-1979
- Research Staff Member, Computer Sciences Department, 1973-1976

__Teaching Experience __

- SUNY College at Purchase, Purchase, NY
- Adjunct Professor of Mathematics, Winter, 1981, Summer, Fall 2009, Spring, Summer, Fall 2010, Spring 2011, Summer 2012

- Iona College, New Rochelle, NY
- Adjunct Professor of Mathematics, Fall 2009

- Fordham University, Harrison, NY
- Adjunct Professor of Mathematics, Fall 2008

- Polytechnic University, Hawthorne, NY
- Adjunct Professor of Computer Science and Electrical Engineering, Fall 1996, Winter 1997, Winter 1998, Winter 1999, Winter 2002, Winter 2003

- Pace University, Pleasantville, NY
- Adjunct Professor of Mathematics, Winter 1978, Fall 1979

- The University of Michigan, Ann Arbor, MI
- Teaching Fellow, Department of Mathematics, 1969-1971
- Research Assistant, Mental Health Research Institute, 1967-1969

__IBM Awards __

- Second Patent Plateau, June, 2007
- Corporate Technical Recognition Event, May, 2005
- Supplemental OIAA, Creation and Distribution of DataCase, November, 2003
- Outstanding Innovation Award, Creation and Distribution of DataCase, March, 2001
- First Patent Plateau, October, 2000
- Outstanding Technical Achievement Award, Commercialization of NetDA, December, 1998
- Outstanding Innovation Award, Multiserver Queueing Analysis, November, 1998
- Outstanding Innovation Award, Network Design and Analysis, January, 1986
- Research Division Outstanding Contribution Award, Applicant Tracking System, September, 1981

__Refereed Publications __

- S. L. Hantler, M. Kochen, 1974. ASP: A Program Using Stored Hypotheses to Select Actions Journal of Cybernetics, 3:(1-12).
- S. L. Hantler, 1976. Estimates for the ∂ -Neumann Operator in Weighted Hilbert Spaces, Transactions of the American Mathematical Society, 217:(395-406).
- S. L. Hantler, 1976. Polynomial Approximation in Certain Weighted Hilbert Spaces of Entire Functions, Mathematica Scandinavica, 39:(113-124).
- S. L. Hantler, J. C. King, 1976. An Introduction to Proving the Correctness of Programs. ACM Computing Surveys, 8(3):331(353).
- B. Gavish, S. L. Hantler, 1983. An Algorithm for Optimal Route Selection in SNA Networks, IEEE Transactions on Communications, COM(31, 1154-1161).
- D. Milch,, S. L. Hantler, H. R. Gail, 1986. NetDA: A Design and Analysis Tool for SNA Computer Networks, Proceedings of IEEE Global Telecommunications Conference, 44(3)(1-7).
- H. R. Gail, S. L. Hantler, Taylor B.A., 1988. Analysis of a Preemptive Priority Multiserver Queue, Data Communication Systems and Their Performance, Elsevier Science Publishers B. V. (North-Holland), (327-342).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1988. Analysis of a Non-Preemptive Priority Multiserver Queue, Advances in Applied Probability, 20:(852-879).
- S. L. Hantler, Z. Rosberg, 1989. Optimal Estimation for an M/M/c Queue with Time-Varying Parameters, Communications in Statistics - Stochastic Models, 5(2):295-313),
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1989. Partial Preemption in a System with Two Processors, Performance of Distributed and Parallel Systems, Elsevier Science Publishers B. V. (North-Holland), (209-224).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1992. On a Preemptive Markovian Queue with Multiple Servers and Two Priority Classes, Mathematics of Operations Research, 17(2):(365-391).
- H. R. Gail, G. Grover, R. Guerin, S. L. Hantler, Z. Rosberg, M. Sidi, 1992. Buffer Size Requirements under Longest Queue First, in Performance of Distributed Systems and Integrated Communication Networks, Elsevier Science Publishers B. V. (North-Holland), (413-424).
- S. L. Hantler, D. Milch, 1993. Designing Reliable Networks with Short Paths, Telecommunication Systems, 1:43-50.
- H. R. Gail, G. Grover, R. Guerin, S. L. Hantler, Z. Rosberg, M. Sidi, 1993. Buffer Size Requirements under Longest Queue First, Performance Evaluation, 18:(133-140).
- H. R. Gail, S. L. Hantler, A. G. Konheim, B. A. Taylor, 1994. An Analysis of a Class of Telecommunications Models, Performance Evaluation, 21:(151-161).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1994. Solutions of the Basic Matrix Equation for M/G/1 and G/M/1 Type Markov Chains, Stochastic Models, 10:(1-43).
- A. Birman, H. R. Gail, S. L. Hantler, Z. Rosberg, M. Sidi, 1995. An Optimal Service Policy for Buffer Systems, Journal of the Association for Computing Machinery, 42(3):(641-657).
- H. R. Gail, S. L. Hantler, M. Sidi, B. A. Taylor, 1995. Linear Independence of Root Equations for M/G/1 Type Markov Chains, Queueing Systems, 20:(321-339).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1996. Spectral Analysis of M/G/1 and G/M/1 Type Markov Chains, Advances in Applied Probability, 28:(114-165).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1997. Non-Skip-Free M/G/1 and G/M/1 Type Markov Chains, Advances in Applied Probability, 29:(733-758).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1998. M/G/1 Type Markov Chains with Rational Generating Functions, Advances in Matrix Analytic Methods for Stochastic Models, A. S. Alfa and S. R. Chakravarthy (editors), Notable Publications, (1-16).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 1998. Matrix-Geometric Invariant Measures for G/M/1 Type Markov Chains, Stochastic Models, 14, (537-569).
- H. R. Gail, S. L. Hantler, B. A. Taylor, 2000. Use of Characteristic Roots for Solving in Finite State Markov Chains, Computational Probability, W. K. Grassmann (editor), Kluwer Academic Publishers, (205-255).
- S. L. Hantler, Surrogate Cost Techniques in Countable Classification, 2007, ISDA07.

__Papers in Preparation __

- H. R. Gail, S. L. Hantler, B. A. Taylor, Convergence of the Fixed Point Iteration for M/G/1 Type Markov Chains.
- H. R. Gail, S. L. Hantler, B. A. Taylor, Priority Chains of M/G/1 Type, available on request.
- H. R. Gail, S. L. Hantler, B. A. Taylor, Multidimensional Random Walks with Partially Homogeneous Transitions.

__Research Reports __

- H. R. Gail, S. L. Hantler, B. A. Taylor, 1990. Varieties in a Two Dimensional Polydisk with Univalent Projection at the Boundary, IBM Research Report RC 15848, available on request.
- H. R. Gail, S. L. Hantler,M. Sidi, B. A. Taylor, 1992. The Transform Method for M/G/1 Type Markov Chains, IBM Research Report RC 17891, available on request.
- A. H. Karp, S. L. Hantler, 1994. Bank Conflicts in Cache Tags, HP Laboratories Technical Report HPL-94-102, available on request.
- H. R. Gail, S. L. Hantler, B. A. Taylor, 2000. Extensions of Rouche's Theorem, IBM Research Report RC 21870, available on request.

__United States Patents __

- US Patent 5,257,258,
*The Least Time to Reach Bound Service Policy for Buffer Systems*, October 26, 1993. - US Patent 6,616,704,
*Two Step Method for Correcting Spelling of a Word or Phrase in a Document*, September 9, 2003. - US Patent 7,171,585,
*Diagnosing Faults and Errors from a Data Repository using Directed Graphs*, January 30, 2007. - US Patent 7,831,537,
*System and Method of Adaptive Generation of Problem Determination Procedures*, October 9, 2008. - US Patent 9,465,791,
*Method and apparatus for automatic detection of spelling errors in one or more documents*, October 11, 2016. - US Patent 9,552,349,
*Methods and apparatus for performing spelling corrections using one or more variant hash tables*, January 24, 2017. - YOR920070518US1, Method and apparatus for creating a subject specific repository of documents from a general repository of documents, filed June 13, 2008.
- YOR920090313202, Systems and methods for automated search-based problem determination and resolution for complex systems, filed December 17, 2009.