The Depth First Search (DF.S.) algori.thm i§. one of the basic techniques which is used in a very large variety of graph algorithms. Every -application' of the DFS involves, beside traversing the graph, cOnstructing a special structured tree, called a DFS tree. In this paper, we give a complete characterization of all the graphs in which every spanning tree is ~ 'DFS tree. These graphs are call...

In this paper, we present a new heuristic for orthogonal graph drawings, which creates drawings by performing a depth-first search and placing the nodes in the order they are encountered. This DFS-heuristic works for graphs with arbitrarily high degrees, and particularly well for graphs with maximum degree 3. It yields drawings with at most one bend per edge, and a total number of m−n+1 bends f...

This paper proposes the use of subdiffraction-limit (SDL) pixels in a new solidstate imaging paradigm – the emulation of the silver halide emulsion film process. The SDL pixels can be used in a binary mode to create a gigapixel digital film sensor (DFS). It is hoped that this paper may inspire revealing research into the potential of this paradigm shift.

Amplification of the fibroblast growth factor receptor 1 (FGFR1) is believed to predict response to FGFR inhibitors. The aim of this study was to investigate the frequency and the prognostic impact of FGFR1 amplification in patients with resected esophageal squamous cell carcinoma (ESCC) by using fluorescent in situ hybridization. Microarrayed paraffin embedded blocks were constructed, and the ...

Global warming delays the autumn date of foliar senescence (DFS) in recent decades, with positive implications for growing season length and therefore global carbon storage. However, warming-associated drought, leading to water limitation, may conversely stimulate earlier DFS. Using ground observations since 1940s 34 years satellite greenness data (1982‒2015) over Northern Hemisphere (>30° N), ...

Several distributed constraint reasoning algorithms employ Depth First Search (DFS) trees on the constraint graph that spans involved agents. In this article we show that it is possible to dynamically detect a minimal DFS tree, compatible with the current order on agents, during the distributed constraint reasoning process of the ADOPT algorithm. This also allows for shorter DFS trees during th...

L; U Lower and upper cluster size bounds k Number of clusters Output: P k Restricted k-way partitioning solution Vars: k 0 Index denoting current partitioning size l + 1 Beginning index of possible new cluster 1. 8i; j with L j ? i + 1 U compute w(C i;j]) using Cluster Costs 2. for k 0 = 2 to k do 3. for j = 1 to n do 4.

Let G = (V,E) be a directed graph on n vertices and m edges. We address the problem of maintaining a depth first search (DFS) tree efficiently under insertion/deletion of edges in G. 1. We present an efficient randomized decremental algorithm for maintaining a DFS tree for a directed acyclic graph. For processing any arbitrary online sequence of edge deletions, this algorithm takes expected O(m...