A parametric Colored Petri net model of the switched Ethernet network with the tree-like topology is developed. The model’s structure is the same for any given network and contains fixed number of nodes. The tree-like topology of a definite network is given as the marking of dedicated places. The model represents a network containing workstations, servers, switches, and provides the evaluation ...

The Visual SQL-X system is presented to generate arbitrarily complex XML documents from a graphical query on a relational database. The query describes the structure of the resulting document through a tree-like representation of its structure. The system generates the XML document through the synthesis of a SQL query and a “summarization” algorithm on the resulting table.

This paper presents several distributed and decentralized strategies used for token traversal in spanning forest over DTMs. DTMs or Delay Tolerant Mobile ad hoc networks are characterized by some undesirable behaviors like the disappearance of mobile devices, connection disruptions, network partitioning, etc. Providing efficient communications in DTMs is a very challenging issue. Techniques bas...

Mining for frequent episodes has been an active research area in recent years. Numerous algorithms have been developed to discover different types of episodes, where most of them adopt an a priori-like approach that generates candidates and then recognises these candidates to determine their support. However, such methods are computationally expensive, depending on the size and structure of the...