Yuan Wang

A Nonlinear Small-Gain Theorem for Large-Scale Time Delay Systems (2009)

Tiwari, Shanaz, Wang, Yuan, Jiang, Zhong-Ping

This paper extends the nonlinear ISS small-gain theorem to a large-scale time delay system composed of three or more subsystems. En route to proving this small-gain theorem for systems of...

Uniformly Universal Inputs (2009)

Eduardo D. Sontag, Yuan Wang

Dedicated to Alberto Isidori on his 65th birthday Summary. A result is presented showing the existence of inputs universal for observability, uniformly with respect to the class of all...

Input Classes for Identifiability of Bilinear Systems (2009)

Eduardo D. Sontag, Yuan Wang, Re Megretski

Abstract — This paper asks what classes of input signals are sufficient in order to completely identify the input/output behavior of generic bilinear systems. The main results are that step inputs...

Input Classes for Identification of Bilinear Systems (2009)

Eduardo D. Sontag, Yuan Wang, Alexandre Megretski

This paper asks what classes of input signals are sufficient in order to completely identify the input/output behavior of generic bilinear systems. The main results are that step inputs are not...

Ethyl 5-formyl-3,4-dimethyl-1H-pyrrole-2-carboxylate (2009)

Wei-Na Wu, Yuan Wang, Qiu-Fen Wang

The molecule of the title compound, C10H13NO3, is approximately planar (maximum deviation 0.1424 Å). In the crystal, molecules are linked into inversion dimers by pairs of N—H...O...

Ethyl 5-[(2,3-dimethyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-4-yl)iminomethyl]-3,4-dimethyl-1H-pyrrole-2-carboxylate (2009)

Yuan Wang, Wei-Na Wu, Qiu-Fen Wang

In the title compound, C21H24N4O3, the molecule has an E configuration about the imine C=N double bond. Intermolecular N—H...O hydrogen bonds assemble molecules into centrosymmetric dimers.

Design and Implementation of Control System for 4MeV LIA (2008)

Xing-lin Yang, Jian Pan, Yuan Wang

A monitoring and control system for 4MeV electron linear induction accelerator capable of producing beams in burst mode is presented. The system is a distributed one based on local network using...

y (2008)

Brian P. Ingalls, Eduardo D. Sontag, Yuan Wang

Abstract The fundamental Filippov-Wa^zwski Relaxation Theorem states that the solution set of a initial value problem for a locally Lipschitz inclusion is dense in the solution set of the same...

Suspect Vehicle Identification for Border Safety with Modified Mutual Information (2008)

Siddharth Kaza, Yuan Wang, Hsinchun Chen

monitors vehicles entering and leaving the country at land ports of entry. Some vehicles are targeted to search for drugs and other contraband. Customs and Border Protection agents believe that...

and (2008)

Eduardo Sontag, Yuan Wang

Abstract. This paper deals with a notion of “input to output stability ” (ios), which formalizes the idea that outputs depend in an “aymptotically stable ” manner on inputs, while internal...

FACE RECOGNITION BASED ON KERNEL RADIAL BASIS FUNCTION NETWORKS (2008)

Yuan Wang, Yunde Jia

Linear subspace analysis has been extensively applied to face recognition. However, a linear subspace can not describe the nonlinear variations of face images. Alternatively, a kernel feature space...

Abstract (2008)

Eduardo Sontag, Yuan Wang

This paper presents necessary and sufficient characterizations of several notions of input to output stability. Similar Lyapunov characterizations have been found to play a key role in the analysis...

and State Space Dimensions (2008)

Yuan Wang

This paper deals with the orders of input�output equations satis�ed by nonlinear systems. Such equations represent di�erential �or di�erence, in the discrete-time case � relations between...

A Comparative Study on Marketing Mix Models for Digital Products ⋆ (2008)

Kanliang Wang, Yuan Wang, Jingtao Yao

Abstract. The rise of the Internet and electronic commerce provide a huge marketspace and unique transaction process for digital products. It is significant to discuss whether established marketing...

PathCase: pathways database system (2008)

Elliott, Brendan, Kirac, Mustafa, Cakmak, Ali, Yavas, Gokhan, Mayes, Stephen, Cheng, En, ...

Motivation: As the blueprints of cellular actions, biological pathways characterize the roles of genomic entities in various cellular mechanisms, and as such, their availability, manipulation and...

Reversible jump MCMC approach for peak identification for stroke SELDI mass spectrometry using mixture model (2008)

Wang, Yuan, Zhou, Xiaobo, Wang, Honghui, Li, King, Yao, Lixiu, Wong, Stephen T.C.

Mass spectrometry (MS) has shown great potential in detecting disease-related biomarkers for early diagnosis of stroke. To discover potential biomarkers from large volume of noisy MS data, peak...

Proc. 1999 American Control Conf., pp. 1598--1602 1 On integral-input-to-state stabilization (2007)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

This paper continues the investigation of the recently introduced integral version of input-to-state stability (iISS). We study the problem of designing control laws that achieve iISS disturbance...

Pole Shifting For Families Of Linear Systems Depending On At Most Three Parameters (2007)

Eduardo D. Sontag, Yuan Wang

We prove that for any family of n-dimensional controllable linear systems, continuously parameterized by up to three parameters, and for any continuous selection of n eigenvalues (in complex...

A relaxation theorem for differential inclusions with applications to stability properties (2007)

Brian P. Ingalls, Eduardo D. Sontag, Yuan Wang

The fundamental Filippov–Waˇzwski Relaxation Theorem states that the solution set of an initial value problem for a locally Lipschitz inclusion is dense in the solution set of the same initial...

Abstract (2007)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

Lemma 5 in [2] was incorrect. A correction is provided here. The error does not affect the rest of the results in the paper. 1 The Error and the Fix There is an error in the statement and the proof...

A relaxation theorem for differential inclusions with applications to stability properties (2007)

Brian P. Ingalls, Eduardo D. Sontag, Yuan Wang

The fundamental Filippov–Waˇzwski Relaxation Theorem states that the solution set of an initial value problem for a locally Lipschitz inclusion is dense in the solution set of the same initial...

A converse Lyapunov theorem and input-to-state stability properties for discrete-time nonlinear systems (2007)

Zhong-ping Jiang, Yuan Wang

In this work we study the input-to-state stability (ISS) property for discrete-time nonlinear systems. We first establish a converse Lyapunov theorem for robust global asymptotic stability in...

Measurement to error stability: a notion of partial detectability for nonlinear systems (2007)

Brian P. Ingalls, Eduardo D. Sontag, Yuan Wang

In previous work the notion of input to state stability (ISS) has been generalized to systems with outputs, yielding a number of useful concepts. When considering a system whose output is to be kept...

Medin for suggesting use of the Cultural Consensus (2007)

Barbara C. Malt, Steven A. Sloman, Silvia Gennari, Meiyi Shi, Yuan Wang, Barbara Malt, ...

We argue that it is important to distinguish between categorization as object recognition and as naming because the relation between the two may not be as straightforward as has often been assumed....

Environmental Performance Rating and Disclosure: China’s Green-Watch Program (2007)

Hua Wang, Jun Bi, David Wheeler, Jinnan Wang, Dong Cao, Genfa Lu, ...

exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the...

Submitted to Systems and Control Letters 1 Universal construction of feedback laws achieving ISS and integral-ISS disturbance attenuation (2007)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

We study nonlinear systems with both control and disturbance inputs. The main problem addressed in the paper is design of state feedback control laws that render the closed-loop system...

Pole Shifting For Families Of Linear Systems (2007)

Depending On At, Eduardo D. Sontag, Yuan Wang

We prove that for any family of n-dimensional controllable linear systems, continuously parameterized by up to three parameters, and for any continuous selection of n eigenvalues (in complex...

Stabilization in Spite of Matched Unmodelled Dynamics (2007)

And An Equivalent, Laurent Praly, Yuan Wang

We consider nonlinear systems with input-to-output stable (IOS) unmodelled dynamics which are in the "range" of the input. Assuming the nominal system is globally asymptotically...

Direct computation of type-II discrete Hartley transform (2007)

Shu, Huazhong, Wang, Yuan, Senhadji, Lotfi, Luo, Limin

We present in this letter an efficient direct method for the computation of a length-N type-II generalized discrete Hartley transform (GDHT) when given two adjacent length-N/2 GDHT coefficients. The...

All Optical Interface for Parallel, Remote, and Spatiotemporal Control of Neuronal Activity (2007)

Sheng Wang, Stephanie Szobota, Yuan Wang, Matthew Volgraf, Zhaowei Liu, Cheng Sun, ...

A key technical barrier to furthering our understanding of complex neural networks has been the lack of tools for the simultaneous spatiotemporal control and detection of activity in a large number...

Direct computation of type-II discrete Hartley transform (2007)

Shu, Huazhong, Wang, Yuan, Senhadji, Lotfi, Luo, Limin

We present in this letter an efficient direct method for the computation of a length-N type-II generalized discrete Hartley transform (GDHT) when given two adjacent length-N/2 GDHT coefficients. The...

[Clinical significance of neuro-reactive autoantibodies in neuro-psychiatric systemic lupus erythematosus] (2006)

Ye, Shuang, Wang, Yuan, Guo, Ling, Chen, Xiao-xiang, Fan, Wei, ...

OBJECTIVE: To investigate the clinical significance of specific/non-specific neuro-reactive autoantibodies in the pathogenesis of neuropsychiatric systemic lupus erythematosus (NPSLE). METHODS:...

Synovial autoreactive T cells in rheumatoid arthritis resist IDO-mediated inhibition (2006)

Ji, Fang, Wang, Yuan, Zhang, Yi, Zhang, Jingwu Z, ...

A hallmark of T cell-mediated autoimmunity is the persistence of autoreactive T cells. However, it remains to elucidate the manner in which synovial T cells are sustained in patients with rheumatoid...

Vessel extraction in coronary X-ray Angiography. (2005)

Wang, Yuan, Toumoulin, Christine, Shu, Huazhong, Zhou, Zhendong, Coatrieux, Jean-Louis

This paper describes a method to extract the vascular centerlines and contours in coronary angiography. The proposed approach associates geometric moments for the estimation of a "cylinder-like...

Non-negative matrix factorization framework for face recognition (2005)

Yuan Wang, Yunde Jia, Changbo Hu, Matthew Turk

Non-negative Matrix Factorization (NMF) is a part-based image representation method which adds a non-negativity constraint to matrix factorization. NMF is compatible with the intuitive notion of...

Vessel extraction in coronary X-ray Angiography. (2005)

Wang, Yuan, Toumoulin, Christine, Shu, Huazhong, Zhou, Zhendong, Coatrieux, Jean-Louis

This paper describes a method to extract the vascular centerlines and contours in coronary angiography. The proposed approach associates geometric moments for the estimation of a "cylinder-like...

Fiduciary Duties of Directors in the Context of Going-private Transactions to the Minority Shareholders under Delaware Law (2004)

Wang, Yuan

This thesis discusses the different fiduciary duties and standards of review imposed by Delaware laws on the directors to the minority shareholders in the going-private transactions structured either...

Towards formal verification of UML diagrams based on graph transformation (2004)

Yu Zhao, Yushun Fan, Xinxin Bai, Yuan Wang, Hong Cai, Wei Ding

In this paper, a meta-level and highly automated technique that could formally transform UML diagrams for verification is presented. Firstly, the meta-model hierarchical structure of UML is reviewed...

Combining Fingerprint and Voiceprint Biometrics for Identity Verification: an Experimental Comparison (2004)

Yuan Wang, Yunhong Wang, Tieniu Tan

Abstract. Combining multiple biometrics may enhance the performance of personal authentication system in accuracy and reliability. In this paper, we compare 13 combination methods in the context of...

Fisher non-negative matrix factorization for learning local features (2004)

Yuan Wang, Yunde Jia

In this paper, we propose a novel subspace method called Fisher non-negative matrix factorization (FNMF) for face recognition. FNMF is based on non-negative matrix factorization (NMF), which is a...

Processing Queries in a Large Peer-to-Peer System (2003)

Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, David J. Dewitt

Abstract. While current search engines seem to easily handle the size of the data available on the Internet, they cannot provide fresh results. The most up-to-date data always resides on the data...

Locating data sources in large distributed systems (2003)

Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, David J. Dewitt

Querying large numbers of data sources is gaining importance due to increasing numbers of independent data providers. One of the key challenges is executing queries on all relevant information...

Processing Queries in a Large Peer-to-Peer System (2003)

Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, David J. Dewitt

Abstract. While current search engines seem to easily handle the size of the data available on the Internet, they cannot provide fresh results. The most up-to-date data always resides on the data...

An infinite-time relaxation theorem for differential inclusions (2003)

Brian Ingalls, Eduardo D. Sontag, Yuan Wang

Abstract. The fundamental relaxation result for Lipschitz differential inclusions is the Filippov-Waˇzewski Relaxation Theorem, which provides approximations of trajectories of a relaxed inclusion...

Locating data sources in large distributed systems (2003)

Leonidas Galanis, Yuan Wang, Shawn R. Jeffery, David J. Dewitt

Querying large numbers of data sources is gaining importance due to increasing numbers of independent data providers. One of the key challenges is executing queries on all relevant information...

Mixed mode xml query processing (2003)

Alan Halverson, Josef Burger, Leonidas Galanis, Ameet Kini, Rajasekar Krishnamurthy, Ajith Nagaraja Rao, ...

Querying XML documents typically involves both tree-based navigation and pattern matching similar to that used in structured information retrieval domains. In this paper, we show that for good...

Input-to-State Stability With Respect to Inputs and Their Derivatives (2003)

David Angeli, Eduardo D. Sontag, Y. Wang, Yuan Wang

INTRODUCTION A central question in control theory is how to formulate, for general non-linear systems, notions of robustness and stability with respect to exogenous input disturbances. The linear...

Input-to-state stability for discrete-time nonlinear systems (2001)

Zhong-ping Jiang, Eduardo Sontag, Yuan Wang

Abstract: In this paper the input-to-state stability (iss) property is studied for discrete-time nonlinear systems. We show that many iss results for continuoustime nonlinear systems in earlier...

NiagaraCQ: A Scalable Continuous Query System for Internet Databases (2000)

Jianjun Chen, David J. Dewitt, Feng Tian, Yuan Wang

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,...

On input-to-state stability for time varying nonlinear systems," submitted (2000)

An Lin, Yuan Wang

Abstract. Input-to-state stability was introduced about 10 years ago. This notion is nowadays a central concept in the analysis of nonlinear systems. However, most theoretical developments dealt...

Further equivalences and semiglobal versions of integral input to state stability, Dynam (2000)

David Angeli, Eduardo Sontag, Yuan Wang

This paper continues the study of the integral input-to-state stability (iiss) property. It is shown that the iiss property is equivalent to one which arises from the consideration of mixed norms on...

NiagaraCQ: A Scalable Continuous Query System for Internet Databases (2000)

Jianjun Chen, David J. DeWitt, Feng Tian, Yuan Wang

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,...

Decoupled Value Prediction on Trace Processors (2000)

Yuan Wang, Pen-chung Yew

Value prediction is a technique that breaks true data dependences by predicting the outcome of an instruction, and executes speculatively its data-dependent instructions based on the predicted...

NiagaraCQ: A Scalable Continuous Query System for Internet Databases (2000)

Jianjun Chen, David J. Dewitt, Feng Tian, Yuan Wang

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,...

Input-output-to-state stability (1999)

Mikhail Krichman, Yuan Wang

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

On Integral-Input-to-State Stabilization (1999)

Daniel Liberzon Dept, Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

This paper continues the investigation of the recently introduced integral version of input-to-state stability (iISS). We study the problem of designing control laws that achieve iISS disturbance...

Input-Output-to-State Stability (1999)

Mikhail Krichman, Eduardo D. Sontag, Yuan Wang

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...

Input-To-State Stability For Discrete-Time Nonlinear Systems (1999)

Zhong-ping Jiang, Eduardo Sontag, Yuan Wang

: In this paper the input-to-state stability (iss) property is studied for discrete-time nonlinear systems. We show that many iss results for continuoustime nonlinear systems in earlier papers...

On Integral-Input-to-State Stabilization (1999)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

This paper continues the investigation of the recently introduced integral version of inputto -state stability (iISS). We study the problem of designing control laws that achieve iISS disturbance...

New Characterizations of Input to State Stability (1999)

Eduardo D. Sontag, Yuan Wang

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...

On Integral-Input-to-State Stabilization (1999)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

This paper continues the investigation of the recently introduced integral version of input-to-state stability (iISS). We study the problem of designing control laws that achieve iISS disturbance...

On Integral-Input-to-State Stabilization (1999)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

This paper continues the investigation of the recently introduced integral version of inputto -state stability (iISS). We study the problem of designing control laws that achieve iISS disturbance...

On Integral-Input-to-State Stabilization (1999)

Daniel Liberzon, Eduardo D. Sontag, Yuan Wang

This paper continues the investigation of the recently introduced integral version of input-to-state stability (iISS). We study the problem of designing control laws that achieve iISS disturbance...

Input-output-to-state stability (1999)

Mikhail Krichman, Eduardo D. Sontag, Yuan Wang

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...

A Characterization of Integral Input to State Stability (1998)

David Angeli, Eduardo D. Sontag, Yuan Wang

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...

A Characterization of Integral Input to State Stability (1998)

David Angeli, E.D. Sontag, Yuan Wang

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...

A Characterization of Integral Input to State Stability (1998)

David Angeli, E. D. Sontag, Yuan Wang

Just as input to state stability (iss) generalizes the idea of finite gains with respect to supremum norms, the new notion of integral input to state stability (iiss) generalizes the concept of...

International Space Station (ISS) Accommodation of a Single U.S. Assured Crew Return Vehicle (ACRV) (1997)

Daniel Mazanek Michelle, Michelle A. Garn, Patrick A. Troutman, Yuan Wang, Renjith R. Kumar, Michael L. Heck

this report, changes in both the ISS and ACRV programs were factored into the analysis with the realization that most of the work performed will eventually need to be repeated once the two programs...

December 1997 NASA/TM-97-206272 (1997)

International Space Station, Daniel D. Mazanek, Michelle A. Garn, Patrick A. Troutman, Yuan Wang, Renjith R. Kumar, ...

this report, changes in both the ISS and ACRV programs were factored into the analysis with the realization that most of the work performed will eventually need to be repeated once the two programs...

Notions of Input to Output Stability (1997)

Eduardo Sontag, Yuan Wang

This paper deals with several related notions of output stability with respect to inputs (which may be thought of as disturbances). The main such notion is called input to output stability (ios), and...

A Notion of Input to Output Stability (1997)

Eduardo D. Sontag, Yuan Wang

. This paper deals with a notion of "input to output stability" (ios), which formalizes the idea that outputs depend in an "aymptotically stable" manner on inputs, while internal...

A Smooth Converse Lyapunov Theorem for Robust Stability (1996)

Yuandan Lin, Eduardo D. Sontag, Yuan Wang

. This paper presents a Converse Lyapunov Function Theorem motivated by robust control analysis and design. Our result is based upon, but generalizes, various aspects of well-known classical...

Generalized Input/Output Equations and Nonlinear Realizability (1996)

Yuan Wang Mathematics, Yuan Wang

This work studies various types of input/output representations for analytic input/output operators. It is shown that if an operator satisfies an integro-differential input/output equation or an...

New Characterizations of Input to State Stability (1996)

Eduardo Sontag Yuan, Yuan Wang

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...

Detectability Of Nonlinear Systems (1996)

Eduardo D. Sontag, Yuan Wang

We propose a definition of detectability for nonlinear systems. This definition generalizes naturally the standard property in the linear case, and is consistent with the "input to state...

Output-to-State Stability and Detectability of Nonlinear Systems (1996)

Eduardo D. Sontag, Yuan Wang

this paper is organized as follows. Section 2 provides the precise definition of

A Lyapunov Formulation of Nonlinear Small Gain Theorem for Interconnected ISS Systems (1996)

Zhong-Ping Jiang, Yuan Wang

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...

A smooth converse Lyapunov theorem for robust stability (1996)

Yuandan Lin, Eduardo D. Sontag, Yuan Wang

Abstract. This paper presents a Converse Lyapunov Function Theorem motivated by robust control analysis and design. Our result is based upon, but generalizes, various aspects of well-known classical...

A Converse Lyapunov Theorem with Applications to ISS-Disturbance Attenuation (1996)

Yuan Wang

This work provides a generalization of a converse Lyapunov theorem for systems that do not have the regularity property on the invariant sets. As an application, we provide Lyapunov-function like...

Input to State Stabilizability for Parameterized Families of Systems (1995)

Yuandan Lin, Eduardo D. Sontag, Yuan Wang

This paper studies various stability issues for parameterized families of systems, including problems of stabilization with respect to sets. The study of such families is motivated by robust control...

Input to State Stabilizability for Parameterized Families of Systems (1995)

Yuandan Lin, Eduardo D. Sontag, Yuan Wang

This paper studies various stability issues for parameterized families of systems, including problems of stabilization with respect to sets. The study of such families is motivated by robust control...

On Characterizations of the Input-to-State Stability Property (1995)

Eduardo D. Sontag, Yuan Wang

We show that the well-known Lyapunov sufficient condition for "input-to-state stability" is also necessary, settling positively an open question raised by several authors during the past...

On Characterizations of Input-to-State Stability with Respect to Compact Sets (1995)

Eduardo D. Sontag, Yuan Wang

Previous characterizations of iss-stability are shown to generalize without change to the case of stability with respect to sets. Some results on iss-stabilizability are mentioned as well.

Orders of Input/Output Differential Equations (1995)

And State Space, Yuan Wang, Eduardo D. Sontag

This paper deals with the orders of input/output equations satisfied by nonlinear systems. Such equations represent differential (or difference, in the discrete-time case) relations between...

On Characterizations of the Input-to-State Stability Property (1995)

Eduardo D. Sontag, Yuan Wang

We show that the well-known Lyapunov sufficient condition for "input-to-state stability" is also necessary, settling positively an open question raised by several authors during the past...

On characterizations of input-to-state stability with respect to compact sets (1995)

Eduardo D. Sontag, Yuan Wang

Abstract. Previous characterizations of iss-stability are shown to generalize without change to the case of stability with respect to sets. Some results on iss-stabilizability are mentioned as well....

On characterizations of the input-to-state stability property (1995)

Eduardo D. Sontag, Yuan Wang

We show that the well-known Lyapunov sufficient condition for “input-to-state stability ” is also necessary, settling positively an open question raised by several authors during the past few...

Analytic Constraints and Realizability for (1995)

Analytic Input Output, Yuan Wang

For input/ouput (i/o) operators, an equivalence is shown between realizability by state space systems and the existence of analytic constraints on higher order derivatives of i/o signals. This...

Orders of input/output differential equations and state space dimensions (1995)

Yuan Wang, Eduardo D. Sontag

Abstract. This paper deals with the orders of input/output equations satisfied by nonlinear systems. Such equations represent differential (or difference, in the discrete-time case) relations between...

Analytic constraints and realizability for analytic input-output operators (1995)

WANG, YUAN

For input-output (i-o) operators, an equivalence is shown between realizability by state-space systems and the existence of analytic constrainsts on higher-order derivatives of i-o signals. This...

A Smooth Converse Lyapunov Theorem for Robust Stability (1994)

Yuandan Lin, Eduardo D. Sontag, Yuan Wang

. This paper presents a Converse Lyapunov Function Theorem motivated by robust control analysis and design. Our result is based upon, but generalizes, various aspects of well-known classical...

Parallelizing Strassen's Method for Matrix Multiplication on Distributed-Memory MIMD Architectures (1994)

Chung-chiang Chou, Yuefan Deng, Gang Li, Yuan Wang

We present a parallel method for matrix multiplication on distributedmemory MIMD architectures based on Strassen's method. Our timing tests, performed on an Intel Paragon, demonstrate that our...

Orders of Input/Output Differential Equations and State Space Dimensions (1994)

Yuan Wang, Eduardo D. Sontag

This paper deals with the orders of input/output equations satisfied by nonlinear systems. Such equations represent differential (or difference, in the discrete-time case) relations between highorder...

Recent Results on Lyapunov-theoretic Techniques for Nonlinear Stability (1994)

Yuandan Lin, Eduardo D. Sontag, Yuan Wang

This paper presents a Converse Lyapunov Function Theorem motivated by robust control analysis and design. Our result is based upon, but generalizes, various aspects of well-known classical theorems....

Orders of Input/Output Differential Equations and State Space Dimensions (1994)

Yuan Wang, Eduardo D. Sontag

. This paper deals with the orders of input/output equations satisfied by nonlinear systems. Such equations represent differential (or difference, in the discretetime case) relations between...

I/O Equations for Nonlinear Systems and Observation Spaces (1991)

Eduardo D. Sontag, Yuan Wang

This paper studies various types of input/output representations for nonlinear continuous time systems. The algebraic and analytic i/o equations studied in previous papers by the authors are...

Generating series and nonlinear systems: Analytic aspects, local realizability, and i/o representations (1991)

Yuan Wang Mathematics, Yuan Wang, Eduardo D. Sontag

This paper studies fundamental analytic properties of generating series for nonlinear control systems, and of the operators they define. It then applies the results obtained to the extension of...

Generating series and nonlinear systems: Analytic aspects, local realizability, and i/o representations (1991)

Yuan Wang, Eduardo D. Sontag

This paper studies fundamental analytic properties of generating series for nonlinear control systems, and of the operators they define. It then applies the results obtained to the extension of...

On Two Definitions Of Observation Spaces (1989)

Yuan Wang Eduardo, Yuan Wang, Eduardo D. Sontag

This paper establishes the equality of the observation spaces defined by means of piecewise constant controls with those defined in terms of di#erentiable controls.

On Two Definitions Of Observation Spaces (1989)

Yuan Wang Eduardo, Yuan Wang, Eduardo D. Sontag

This paper establishes the equality of the observation spaces defined by means of piecewise constant controls with those defined in terms of differentiable controls.

The Niagara Internet Query System

Jeffrey Naughton, David DeWitt, David Maier, Jianjun Chen, Leonidas Galanis, Kristin Tufte, ...

: Many projections envision a future in which the Internet is populated with a vast number of Web-accessible XML files---a "World-Wide Database". Recently, there has been a great deal of...

Lyapunov Characterizations of Input to Output Stability

Eduardo Sontag Dept, Eduardo Sontag, Yuan Wang

This paper presents necessary and sufficient characterizations of several notions of input to output stability. Similar Lyapunov characterizations have been found to play a key role in the analysis...

Algebraic Differential Equations And Rational Control Systems

Yuan Wang Mathematics, Yuan Wang, Eduardo D. Sontag

An equivalence is shown between realizability of input/output operators by rational control systems and high order algebraic differential equations for input/output pairs. This generalizes, to...

Algebraic Differential Equations And Rational Control Systems

Yuan Wang, Eduardo D. Sontag

An equivalence is shown between realizability of input/output operators by rational control systems and high order algebraic differential equations for input/output pairs. This generalizes, to...

Lyapunov Characterizations of Input to Output Stability

Eduardo D. Sontag, Yuan Wang

This paper presents necessary and sufficient characterizations of several notions of input to output stability. Similar Lyapunov characterizations have been found to play a key role in the analysis...

Modulation of murine embryonic stem cell–derived CD41+c-kit+ hematopoietic progenitors by ectopic expression of Cdx genes

McKinney-Freeman, Shannon L., Lengerke, Claudia, Jang, Il-Ho, Schmitt, Sabine, Wang, Yuan, Philitas, Marsha, ...

Cdx1, Cdx2, and Cdx4 comprise the caudal-like Cdx gene family in mammals, whose homologues regulate hematopoietic development in zebrafish. Previously, we reported that overexpression of Cdx4...

Credit default swap auctions

Jean Helwege, Samuel Maurer, Asani Sarkar, Yuan Wang

The rapid growth of the credit default swap (CDS) market and the increased number of defaults in recent years have led to major changes in the way CDS contracts are settled when default occurs....

Reversible jump MCMC approach for peak identification for stroke SELDI mass spectrometry using mixture model

Wang, Yuan, Zhou, Xiaobo, Wang, Honghui, Li, King, Yao, Lixiu, Wong, Stephen T.C.

Mass spectrometry (MS) has shown great potential in detecting disease-related biomarkers for early diagnosis of stroke. To discover potential biomarkers from large volume of noisy MS data, peak...

Correlation between expression and differentiation of endocan in colorectal cancer

Zuo, Li, Zhang, Su-Mei, Hu, Ruo-Lei, Zhu, Hua-Qing, Zhou, Qing, Gui, Shu-Yu, ...

AIM: To investigate the expression frequency of endocan in colorectal cancer and analyze the relationship between endocan expression and clinical parameters and to study the role of endocan in...