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- Publications
- Influence

NiagaraCQ: a scalable continuous query system for Internet databases

- Jianjun Chen, D. DeWitt, F. Tian, Y. Wang
- Computer Science
- SIGMOD '00
- 16 May 2000

Continuous queries are persistent queries that allow users to receive new results when they become available. While continuous query systems can transform a passive web into an active environment,… Expand

New characterizations of input-to-state stability

- Eduardo Sontag, Y. Wang
- Mathematics
- 1 September 1996

We present new characterizations of the input-to-state stability property. As a consequence of these results, we show the equivalence between the ISS property and several (apparent) variations… Expand

A characterization of integral input-to-state stability

- D. Angeli, Eduardo Sontag, Y. Wang
- Mathematics, Computer Science
- IEEE Trans. Autom. Control.
- 1 June 2000

The notion of input-to-state stability (ISS) is now recognized as a central concept in nonlinear systems analysis. It provides a nonlinear generalization of finite gains with respect to supremum… Expand

Input-to-state stability for discrete-time nonlinear systems

The input-to-state stability property and iss small-gain theorems are introduced as the cornerstone of new stability criteria for discrete-time nonlinear systems.

A Lyapunov formulation of the nonlinear small-gain theorem for interconnected ISS systems

- Z. Jiang, I. Mareels, Y. Wang
- Mathematics, Computer Science
- Autom.
- 1 August 1996

The goal of this paper is to provide a Lyapunov statement and proof of the recent nonlinear small-gain theorem for interconnected input/state-stable (ISS) systems. An ISS-Lyapunov function for the… Expand

X-Diff: an effective change detection algorithm for XML documents

- Y. Wang, D. DeWitt, J. Cai
- Computer Science
- Proceedings 19th International Conference on Data…
- 5 March 2003

XML has become the de facto standard format for Web publishing and data transportation. Since online information changes frequently, being able to quickly detect changes in XML documents is important… Expand

A converse Lyapunov theorem for discrete-time systems with disturbances

This paper presents a converse Lyapunov theorem for discrete-time systems with disturbances taking values in compact sets. Among several new stability results, it is shown that a smooth Lyapunov… Expand

Plasmon-induced transparency in metamaterials.

A plasmonic "molecule" consisting of a radiative element coupled with a subradiant (dark) element is theoretically investigated. The plasmonic molecule shows electromagnetic response that closely… Expand

Stabilization in spite of matched unmodeled dynamics and an equivalent definition of input-to-state stability

We consider nonlinear systems with input-to-output stable (IOS) unmodeled dynamics which are in the “range” of the input. Assuming the nominal system is globally asymptotically stabilizable and a… Expand

Input-Output-to-State Stability

- M. Krichman, Eduardo Sontag, Y. Wang
- Mathematics, Computer Science
- SIAM J. Control. Optim.
- 29 November 1999

This work explores Lyapunov characterizations of the input-output-to-state stability (IOSS) property for nonlinear systems. The notion of IOSS is a natural generalization of the standard… Expand