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An approach to tune fuzzy controllers based on reinforcement learning for autonomous vehicle control

- Xiaohui Dai, Chi-Kwong Li, Ahmad B. Rad
- IEEE Transactions on Intelligent Transportationâ€¦
- 2005

In this paper, we suggest a new approach for tuning parameters of fuzzy controllers based on reinforcement learning. The architecture of the proposed approach is comprised of a Q estimator networkâ€¦ (More)

We propose a definition for geometric mean of k positive (semi) definite matrices. We show that our definition is the only one in the literature that has the properties that one would expect from aâ€¦ (More)

- Chi-Kwong Li, Hans Schneider
- Journal of mathematical biology
- 2002

By the use of Perron-Frobenius theory, simple proofs are given of the Fundamental Theorem of Demography and of a theorem of Cushing and Yicang on the net reproductive rate occurring in matrix modelsâ€¦ (More)

- Kwok-Kwong Yiu, Man-Wai Mak, Chi-Kwong Li
- Neural Computing & Applications
- 1999

Probabilistic Decision-Based Neural Networks (PDBNNs) can be considered as a special form of Gaussian Mixture Models (GMMs) with trainable decision thresholds. This paper provides detailedâ€¦ (More)

- Stephen J. Kirkland, Chi-Kwong Li, Sebastian J. Schreiber
- SIAM Journal of Applied Mathematics
- 2006

To better understand the evolution of dispersal in spatially heterogeneous landscapes, we study difference equation models of populations that reproduce and disperse in a landscape consisting of kâ€¦ (More)

- Victor Cheng, Chun-hung Li, James T. Kwok, Chi-Kwong Li
- Pattern Recognition
- 2004

De.ning a good distance (dissimilarity) measure between patterns is of crucial importance in many classi.cation and clustering algorithms. While a lot of work has been performed on continuousâ€¦ (More)

- Chi-Kwong Li, Stephen Pierce
- The American Mathematical Monthly
- 2001

Linear preserver problems is an active research area in matrix and operator theory. These problems involve certain linear operators on spaces of matrices or operators. We give a general introductionâ€¦ (More)

- Li Qiu, Yanxia Zhang, Chi-Kwong Li
- SIAM J. Matrix Analysis Applications
- 2005

Let Gm,n be the Grassmann space of m-dimensional subspaces of F. Denote by Î¸1(X ,Y), . . . , Î¸m(X ,Y) the canonical angles between subspaces X ,Y âˆˆ Gm,n. It is shown that Î¦(Î¸1(X ,Y), . . . , Î¸m(Xâ€¦ (More)

- Chi-Kwong Li, Roy Mathias
- Numerische Mathematik
- 1999

We use a simple matrix splitting technique to give an elementary new proof of the Lidskii-Mirsky-Wielandt Theorem and to obtain a multiplicative analog of the Lidskii-Mirsky-Wielandt Theorem, whichâ€¦ (More)

- Chi-Kwong Li, Yiu-Tung Poon
- SIAM J. Matrix Analysis Applications
- 2000

We consider linearly independent families of Hermitian matrices {A1, . . . , Am} so that Wk(A) is convex. It is shown that m can reach the upper bound 2k(nâˆ’ k) + 1. A key idea in our study isâ€¦ (More)