In this paper, we design a multi-objective controller ( ) u t to achieve the following three objectives simultaneously. They are pole placement, H∞ norm constraint and individual error state variance constraint for stochastic model reference systems. By using the invariance property of sliding mode control, the matched model reference input and the plant error term will disappear on the sliding...

In order to improve the quality of image with super-resolution reconstruction, a method based on motion estimation error and edge constraint was proposed. Under the condition of data consistency and amplitude restriction, the motion estimation error was analyzed, with its variance being calculated; meanwhile, in order to suppress the ringing artifacts, edge constraint was adopted and a method b...

While fixing concurrency bugs, program repair algorithms may introduce new concurrency bugs. We present an algorithm that avoids such regressions. The solution space is given by a set of program transformations we consider in for repair process. These include reordering of instructions within a thread and inserting atomic sections. The new algorithm learns a constraint on the space of candidate...

In this paper, we investigate an optimization of threshold level with energy detection to improve the spectrum sensing performance. Determining threshold level to minimize spectrum sensing error both reduces collision probability with primary user and enhances usage level of vacant spectrum, resulting in improving total spectrum efficiency. However, when determining threshold level, spectrum se...

A deterministic annealing algorithm for the design of tiedmixture HMM recognizers is proposed, which reduces the training sensitivity to parameter initialization, automatically smoothes the classification error cost function to allow gradientbased optimization, and seeks better solutions than known techniques. The new approach introduces randomness into the classification rule during the traini...

Compilers for languages with type inference algorithms produce confusing type error messages and give a single error location which is often far away from the real location of the type error. Attempts at solving this problem 1) fail to include the multiple program points which make up the type error, 2) often report tree fragments which do not correspond to any place in the user program, and 3)...

Straightforward solution of discrete ill-posed least-squares problems with errorcontaminated data does not, in general, give meaningful results, because propagated error destroys the computed solution. Error propagation can be reduced by imposing constraints on the computed solution. A commonly used constraint is the discrepancy principle, which bounds the norm of the computed solution when app...

Feedrate has a great influence on contour error in five-axis machining. Accordingly, it is of significance to plan the time-optimal feedrate curve considering constraint achieve high-accuracy and high-efficiency Aiming at improving control accuracy model linearization loss optimizing machining time, PSO-based optimization algorithm for with proposed this paper. Firstly, relationship between par...