Detection of instances of design patterns is useful for the software maintenance. This paper proposes a new framework for the automated detection of instances of design patterns. The framework uses a reengineering tool to analyze C++ source codes. Prolog is used to induce instances of design patterns, the elemental design patterns are also used as a intermediate results for the final target (de...

We present a scheme for joint source-channel coding for transmission of sources compressed by embedded source coders over a memoryless noisy channel. We nd an exact solution to the problem of optimal channel code allocation. Then we investigate the properties of the solution which allow us to transmit the source progressively while retaining the optimality at intermediate and nal transmission r...

In this paper, we propose a partial interferencecancellation (PIC) group decoding strategy/scheme for linear dis-persive space-time block codes (STBC) and a design criterion forthe codes to achieve full diversity when the PIC group decoding isused at the receiver. A PIC group decoding decodes the symbolsembedded in an STBC by dividing them into several groupsand decoding...

Cyclic orbit codes are a family of constant dimension codes used for random network coding. We investigate the Plücker embedding of these codes and show how to efficiently compute the Grassmann coordinates of the code words. 1. Introduction. In network coding one is looking at the transmission of information through a directed graph with possibly several senders and several receivers [1]. One c...

In this paper, we introduce and study  a mapping from the collection of all  intermediate rings of $C(X)$ to the collection of all  realcompactifications of $X$ contained in $beta X$. By establishing the relations between this mapping and its converse,  we give a different approach to the main statements of De et. al. Using these, we provide different answers to the   four basic questions...

Abstract In 2022 September, the DART spacecraft (NASA’s contribution to Asteroid Impact & Deflection Assessment (AIDA) collaboration) will impact asteroid Dimorphos, secondary in Didymos system. The crater formation and material ejection affect orbital period. 2027, Hera (ESA’s AIDA) investigate system, observe caused by DART, characterize Dimorphos. Before Hera’s arrival, target properties...

The binary and ternary codes spanned by the rows of the point by block incidence matrices of some 2-designs and their complementary and orthogonal designs are studied. A new method is also introduced to study optimal codes.