Search Results - "Santos, Vinicius Fernandes dos"
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Climbing the Hill with ILP to Grow Patterns in Fuzzy Tensors
Published in International journal of computational intelligence systems (01-01-2020)“…Fuzzy tensors encode to what extent n -ary predicates are satisfied. The disjunctive box cluster model is a regression model where sub-tensors are explanatory…”
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On the proper interval completion problem within some chordal subclasses
Published in Discrete mathematics (01-01-2025)“…Given a property (graph class) Π, a graph G, and an integer k, the Π-completion problem consists of deciding whether we can turn G into a graph with the…”
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3
Integer programming formulations for the k$k$‐in‐a‐tree problem in graphs
Published in International transactions in operational research (01-09-2024)“…Chudnovsky and Seymour proposed the Three‐in‐a‐tree algorithm which solves the following problem in polynomial time: given three fixed vertices in a simple…”
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Computational complexity and linear formulations for optimizing the location of shared mobility stations
Published in International transactions in operational research (01-09-2024)“…Properly planned shared mobility services can be attractive even for who owns and drives a private vehicle, but would consider not owning it anymore if a…”
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Connectivity with backbone structures in obstructed wireless networks
Published in Computer networks (Amsterdam, Netherlands : 1999) (09-11-2017)“…In this work we consider a wireless ad-hoc network deployed on a finite street grid, where communication between nodes is disrupted by regularly spaced…”
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Dual Parameterization of Weighted Coloring
Published in Algorithmica (01-08-2020)“…Given a graph G , a proper k - coloring of G is a partition c = ( S i ) i ∈ [ 1 , k ] of V ( G ) into k stable sets S 1 , … , S k . Given a weight function w :…”
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Importance of Clinical and Laboratory Findings in the Diagnosis and Surgical Prognosis of Patients with Constrictive Pericarditis
Published in Arquivos brasileiros de cardiologia (01-11-2017)“…International studies have reported the value of the clinical profile and laboratory findings in the diagnosis of constrictive pericarditis. However, Brazilian…”
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8
An upper bound on the P 3 -Radon number
Published in Discrete mathematics (28-08-2012)Get full text
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Characterization and representation problems for intersection betweennesses
Published in Discrete Applied Mathematics (06-03-2011)“…For a set system M = ( M v ) v ∈ V indexed by the elements of a finite set V , the intersection betweenness B ( M ) induced by M consists of all triples ( u ,…”
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10
Edge deletion to tree-like graph classes
Published in Discrete Applied Mathematics (15-05-2024)“…For a fixed property (graph class) Π, given a graph G and an integer k, the Π-deletion problem consists in deciding if we can turn G into a graph with the…”
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11
On recognition of threshold tolerance graphs and their complements
Published in Discrete Applied Mathematics (10-01-2017)“…A graph G=(V,E) is a threshold tolerance graph if each vertex v∈V can be assigned a weight wv and a tolerance tv such that two vertices x,y∈V are adjacent if…”
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12
On the Carathéodory number of interval and graph convexities
Published in Theoretical computer science (28-10-2013)“…Inspired by a result of Carathéodory [Über den Variabilitätsbereich der Fourierschen Konstanten von positiven harmonischen Funktionen, Rend. Circ. Mat. Palermo…”
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13
Irreversible conversion processes with deadlines
Published in Journal of discrete algorithms (Amsterdam, Netherlands) (01-05-2014)“…Given a graph G, a deadline td(u) and a time-dependent threshold f(u,t) for every vertex u of G, we study sequences C=(c0,c1,…) of 0/1-labelings ci of the…”
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14
Characterization and recognition of Radon-independent sets in split graphs
Published in Information processing letters (31-12-2012)“…Let R be a set of vertices of a split graph G. We characterize when R allows a partition into two disjoint set R1 and R2 such that the convex hulls of R1 and…”
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On subbetweennesses of trees: Hardness, algorithms, and characterizations
Published in Computers & mathematics with applications (1987) (01-12-2011)“…We study so-called betweennesses induced by trees and forests. Algorithmic problems related to betweennesses are typically hard. They have been studied as…”
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On the coloring of generalized Petersen graphs
Published in Discrete mathematics (2016)Get full text
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17
On the equitable total chromatic number of cubic graphs
Published in Discrete Applied Mathematics (20-08-2016)“…A total coloring is equitable if the number of elements colored with each color differs by at most one, and the least integer for which a graph has such a…”
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18
Algorithmic and structural aspects of the -Radon number
Published in Annals of operations research (01-07-2013)“…The generalization of classical results about convex sets in [R.sup.n] to abstract convexity spaces, defined by sets of paths in graphs, leads to many…”
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19
An upper bound on the -Radon number
Published in Discrete mathematics (28-08-2012)“…The generalization of classical results about convex sets in R n to abstract convexity spaces, defined by sets of paths in graphs, leads to many challenging…”
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20
Edge deletion to tree-like graph classes
Published 07-10-2022“…For a fixed property (graph class) ${\Pi}$, given a graph G and an integer k, the ${\Pi}$-deletion problem consists in deciding if we can turn $G$ into a graph…”
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