Keyword: graphical methods

Found 53 papers in total
Sharp Separation and Applications to Exact and Parameterized Algorithms
Sharp Separation and Applications to Exact and Parameterized Algorithms
2012,
Many divide‐and‐conquer algorithms employ the fact that the vertex set...
Counting Hexagonal Patches and Independent Sets in Circle Graphs
Counting Hexagonal Patches and Independent Sets in Circle Graphs
2012,
A hexagonal patch is a plane graph in which inner faces have length 6, inner vertices...
The competition number of a graph with exactly two holes
The competition number of a graph with exactly two holes
2012,
Given an acyclic digraph D , the competition graph C ( D ) of D is the graph with the...
Boundary concentrated finite elements for optimal boundary control problems of elliptic PDEs
Boundary concentrated finite elements for optimal boundary control problems of elliptic PDEs
2012,
We investigate the discretization of optimal boundary control problems for elliptic...
Univariate cubic L 1 interpolating splines based on the first derivative and on 5‐point windows: analysis, algorithm and shape‐preserving properties
Univariate cubic L 1 interpolating splines based on the first derivative and on 5‐point windows: analysis, algorithm and shape‐preserving properties
2012,
In this paper, univariate cubic L 1 interpolating splines based on the first...
The Complexity of König Subgraph Problems and Above‐Guarantee Vertex Cover
The Complexity of König Subgraph Problems and Above‐Guarantee Vertex Cover
2011,
A graph is König‐Egerváry if the size of a minimum vertex cover...
Faster Parameterized Algorithms for Minimum Fill‐in
Faster Parameterized Algorithms for Minimum Fill‐in
2011,
We present two parameterized algorithms for the Minimum Fill‐in problem, also...
Extending Steinitz’s Theorem to Upward Star‐Shaped Polyhedra and Spherical Polyhedra
Extending Steinitz’s Theorem to Upward Star‐Shaped Polyhedra and Spherical Polyhedra
2011,
In 1922, Steinitz’s theorem gave a complete characterization of the topological...
Farrell revisited – Visualizing properties of DEA production frontiers
Farrell revisited – Visualizing properties of DEA production frontiers
2009,
The contributions of the paper are threefold: (i) compare with mathematical rigour the...
Adjusting ordinal and cardinal inconsistencies in decision preferences based on Gower plots
Adjusting ordinal and cardinal inconsistencies in decision preferences based on Gower plots
2006,
Gower plots provide a powerful graphical tool to detect cardinal and ordinal...
Displays for direct comparison of ARIMA models
Displays for direct comparison of ARIMA models
2002,
The series of graphs presented here, based on standard time series diagnostics and...
A visual interface for model-fitting
A visual interface for model-fitting
2001,
We describe a tool which supports the activity of a human being in fitting a...
A visualization tool for exploratory analysis of cyclic multivariate data
A visualization tool for exploratory analysis of cyclic multivariate data
2000,
This paper presents an interactive visualization tool for the qualitative exploration...
Biplots as a tool for identifying outliers in a two level hierarchical linear model
Biplots as a tool for identifying outliers in a two level hierarchical linear model
2000,
This paper presents a general formulation of a two level hierarchical linear model. In...
Co-plot: A graphic display method for geometrical representations of multi-criteria decision models
Co-plot: A graphic display method for geometrical representations of multi-criteria decision models
2000,
A relatively new multivariate analysis method called Co-plot is shown to be highly...
Reliability growth – a new graphical model
Reliability growth – a new graphical model
1999,
A new reliability growth model is presented which is simpler to plot and fits the data...
Experimental evaluation of a graphical display system to visualizing multiple criteria solutions
Experimental evaluation of a graphical display system to visualizing multiple criteria solutions
1999,
One of the major limitations of multiple criteria techniques is the poor set of...
Presenting geographic information: Effects of data aggregation, dispersion, and users' spatial orientation
Presenting geographic information: Effects of data aggregation, dispersion, and users' spatial orientation
1999,
Geographic information systems (GIS) have taken on an increasingly important role...
Solution of 3 × 3 games using graphical methods
Solution of 3 × 3 games using graphical methods
1999,
While graphical solution of 2× n games is described in all OR test books,...
Some remarks on scatter plots generation procedures for facility layout
Some remarks on scatter plots generation procedures for facility layout
1999,
Scatter plots of facilities on the plane are derived from a heuristic procedure...
PROMETHEE and GAIA in a multi-decision maker environment
PROMETHEE and GAIA in a multi-decision maker environment
1996,
PROMETHEE and GAIA are multicriteria decision aidmethods that have been developed a...
Graphical techniques for selecting explanatory variables for time series data
Graphical techniques for selecting explanatory variables for time series data
1997,
Bayesian model building techniques are developed for data with a strong time series...
Data envelopment analysis: Visualizing the results
Data envelopment analysis: Visualizing the results
1995,
Data envelopment analysis (DEA) is a useful technique for assessing the relative...
Handling multiple sources of variation using influence diagrams
Handling multiple sources of variation using influence diagrams
1995,
I argue here that the problem of coding uncertainty in environments with many sources...
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