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We seek to augment a geometric network in the Euclidean plane with shortcuts to minimize its continuous diameter, i.e., the largest network distance between any two points on the augmented network. Unlike in the discrete setting where a shortcut connects two vertices and the diameter is measured between vertices, we take all points along the edges of the… (More)

- Prosenjit Bose, Kai Dannies, +5 authors Michiel H. M. Smid
- JoCG
- 2013

Consider the continuum of points along the edges of a network, i.e., an undirected graph with positive edge weights. We measure distance between these points in terms of the shortest path distance along the network, known as the network distance. Within this metric space, we study farthest points. We introduce network farthest-point diagrams, which capture… (More)

Consider the continuum of points on the edges of a network, i.e., a connected, undirected graph with positive edge weights. We measure the distance between these points in terms of the weighted shortest path distance, called the network distance. Within this metric space, we study farthest points and farthest distances. We introduce optimal data structures… (More)

Consider the continuum of points along the edges of a network, an embedded undirected graph with positive edge weights. Distance between these points can be measured as shortest path distance along the edges of the network. We introduce two new concepts to capture farthest-point information in this metric space. The first, eccentricity diagrams, are used to… (More)

6 Consider the continuum of points on the edges of a network, i.e., a connected, undirected graph 7 with positive edge weights. We measure the distance between these points in terms of the weighted 8 shortest path distance, called the network distance. Within this metric space, we study farthest points 9 and farthest distances. We introduce optimal data… (More)

- Jürgen Rehm, Jose Angel Arbesu Prieto, +11 authors Antoni Gual
- BMC family practice
- 2016

BACKGROUND
Even though addressing lifestyle problems is a major recommendation in most guidelines for the treatment of hypertension (HTN), alcohol problems are not routinely addressed in the management of hypertension in primary health care.
METHODS
Internet based survey of 3081 primary care physicians, recruited via the mailing lists of associations for… (More)

We augment a tree T with a shortcut pq to minimize the largest distance between any two points along the resulting augmented tree T + pq. We study this problem in a continuous and geometric setting where T is a geometric tree in the Euclidean plane, where a shortcut is a line segment connecting any two points along the edges of T , and we consider all… (More)

- Carsten Grimm
- WG
- 2015

Consider the continuum of points along the edges of a network, i.e., a connected, undirected graph with positive edge weights. We measure the distance between these points in terms of the weighted shortest path distance, called the network distance. Within this metric space, we study farthest points and farthest distances. We introduce a data structure… (More)

- Carsten Grimm
- ArXiv
- 2015

We seek to perform efficient queries for the predecessor among n values stored in k sorted arrays. Evading the Ω(n log k) lower bound from merging k arrays, we support predecessor queries in O(log n) time after O(n log(k log n)) construction time. By applying Ben-Or's technique, we establish that this is optimal for strict predecessor queries, i.e., every… (More)