A quasi-symmetric design (QSD) is a 2-(v, k, λ) design with intersection numbers x and y with x < y. The block graph of such a design is formed on its blocks with two distinct blocks being adjacent if they intersect in y points. It is well known that the block graph of a QSD is a strongly regular graph (SRG) with parameters (b, a, c, d) with smallest eigenvalue −m = −k−x y−x . The classificatio...

Let n 1 be an integer. The hypercube Qn is the graph whose vertex set isf0;1gn, where two n-tuples are adjacent if they differ in precisely one coordinate. This graph has many applications in Computer sciences and other area of sciences. Inthe graph Qn, the layer Lk is the set of vertices with exactly k 1’s, namely, vertices ofweight k, 1 k n. The hyper-star graph B(n;k) is...

This research offers a fundamental new approach to topology optimization. To date, topological synthesis approaches are simply augmentations of existing stochastic optimization techniques. While these algorithms are useful in complex parametric design spaces, they are not designed for all topology problems. This paper describes a generalized scheme for solving topological design problems. The a...

A metagraph is a graph-theoretic construct that has been shown to be a useful basis for graphical visualization and algebraic analysis of DSS resources such as models, data and rules. In this paper, we describe the structure and use of a metagraph-based DSS analysis workbench that can also be used as a front-end to an existing DSS for activities such as database design and model analysis.

We present a CAD system for skeletal age assessment based on Tanner-Whitehouse method. Using digital X-ray left hand images, maturity indicators are searched by means of a interactive process. Results indicate that this approach is useful to speed up the analysis of growth disorders.

Additive Manufacturing (AM) is becoming data-intensive while increasingly generating newly available data. The availability of AM data provides Design for (DfAM) with a newfound opportunity to construct design rules improved understanding AM’s influence on part qualities. To seize the opportunity, this paper proposes novel approach rule construction based machine learning and knowledge graph. F...

Design Patterns are solution to common continual design issues. Design Pattern Detection is most significant activity that will support lots of re-engineering method and so provides significant info to the designer. Information of design pattern exists within the system design improves the program understanding and software system maintenance. Therefore, an automatic and reliable design pattern...

A G-design of order n is a pair (P, B) where P is the vertex set of the complete graph Kn and B is an edge-disjoint decomposition of Kn into isomorphic copies of the simple graph G. Following terminology, we call these copies "blocks". Given a particular the intersection problem asks for which k is it possible to find two (P, Bl) and (P, B 2) of order n, with IBI n B21 = k, that is, with k comm...

Expressions for the Zagreb indices and coindices of the total graph, semi-total point graph and of semi-total line graph of subdivision graphs in terms of the parameters of the parent graph are obtained, thus generalizing earlier existing results.