Abdullah Almethen

Abdullah Almethen
University of Liverpool | UoL

About

9
Publications
216
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19
Citations

Publications

Publications (9)
Article
We consider a discrete system of n devices lying on a 2-dimensional square grid and forming an initial connected shape SI. Each device is equipped with a linear-strength mechanism which enables it to move a whole line of consecutive devices in a single time-step, called a line move. We study the problem of transforming SI into a given connected tar...
Chapter
We consider a discrete system of n simple indistinguishable devices, called agents, forming a connected shape SI on a two-dimensional square grid. Agents are equipped with a linear-strength mechanism, called a line move, by which an agent can push a whole line of consecutive agents in one of the four directions in a single time-step. We study the p...
Preprint
Full-text available
We consider a discrete system of $n$ simple indistinguishable devices, called \emph{agents}, forming a \emph{connected} shape $S_I$ on a two-dimensional square grid. Agents are equipped with a linear-strength mechanism, called a \emph{line move}, by which an agent can push a whole line of consecutive agents in one of the four directions in a single...
Chapter
We consider a discrete system of n devices lying on a 2-dimensional square grid and forming an initial connected shape . Each device is equipped with a linear-strength mechanism which enables it to move a whole line of consecutive devices in a single time-step. We study the problem of transforming into a given connected target shape of the same num...
Preprint
Full-text available
We consider a discrete system of $n$ devices lying on a 2-dimensional square grid and forming an initial connected shape $S_I$. Each device is equipped with a linear-strength mechanism which enables it to move a whole line of consecutive devices in a single time-step. We study the problem of transforming $S_I$ into a given connected target shape $S...
Article
In this work, we study a discrete system of entities residing on a two-dimensional square grid. Each entity is modelled as a node occupying a distinct cell of the grid. The set of all n nodes forms initially a connected shape A. Entities are equipped with a linear-strength pushing mechanism that can push a whole line of entities in parallel in a si...
Chapter
In this paper, we study a discrete system of entities residing on a two-dimensional square grid. Each entity is modelled as a node occupying a distinct cell of the grid. The set of all n nodes forms initially a connected shape A. Entities are equipped with a linear-strength pushing mechanism that can push a whole line of entities, from 1 to n, in p...
Preprint
Full-text available
In this paper, we study a discrete system of entities residing on a two-dimensional square grid. Each entity is modelled as a node occupying a distinct cell of the grid. The set of all $n$ nodes forms initially a connected shape $A$. Entities are equipped with a linear-strength pushing mechanism that can push a whole line of entities, from 1 to $n$...
Conference Paper
Graph databases have become one of the most attractive areas for researchers, especially in data mining field. Frequent subgraphs are one of the most actively researched in this area. Numerous algorithms have been developed to find the most frequent subgraphs, such as SUBDUE algorithm, which uses a computationally constrained beam. Consequently, it...

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