Results 131 to 140 of about 617,805 (269)

Identifiability conditions in cognitive diagnosis: Implications for Q‐matrix estimation algorithms

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract The Q‐matrix of a cognitively diagnostic assessment (CDA), documenting the item‐attribute associations, is a key component of any CDA. However, the true Q‐matrix underlying a CDA is never known and must be estimated—typically by content experts.
Hyunjoo Kim   +2 more
wiley   +1 more source

The enumeration of bipartite graphs

open access: yesDiscrete Mathematics, 1979
AbstractThe standard construction of graphs with n connected components is modified here for bicolored graphs by letting Sn × H act on the function space Y∗where X={1,2,…,n}, Y is the set of connected bicolored graphs, and H is the group that interchanges the vertex colors.
openaire   +2 more sources

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich   +4 more
wiley   +1 more source

Bipartite graph search optimization for type II diabetes mellitus Jamu formulation using branch and bound algorithm. [PDF]

open access: yesFront Pharmacol, 2022
Kusuma WA   +6 more
europepmc   +1 more source

Word-representability of co-bipartite graph [PDF]

open access: yes
A graph $G = (V, E)$ is word-representable, if there exists a word $w$ over the alphabet $V$ such that for letters $\{x,y\}\in V$, $x$ and $y$ alternate in $w$ if and only if $xy \in E$.
Das, Biswajit   +1 more
core   +2 more sources

Bipartite Approximation for Graph Wavelet Signal Decomposition

open access: yes, 2017
To compactly represent a graph signal in the frequency domain, critically sampled biorthogonal wavelet filterbanks have been proposed to decompose signals on bipartite graphs.
Jin Zeng   +5 more
core   +1 more source

Quantitative Metrics for Edge Bundling of Network Visualizations

open access: yesComputer Graphics Forum, EarlyView.
Abstract Edge bundling is widely used for reducing visual clutter in large 2D network and trajectory visualizations. Various edge bundling methods have been proposed, each producing qualitatively distinct outputs for the same data; however, few quantitative metrics exist for systematic evaluation. In this paper, we propose a set of quantitative metrics
M. Wallinger   +3 more
wiley   +1 more source

Computing the permanental polynomial of 4k-intercyclic bipartite graphs

open access: yesThe American Journal of Combinatorics
Let \(G\) be a bipartite graph with adjacency matrix \(A(G)\). The characteristic polynomial \(\phi(G,x)=\det(xI-A(G))\) and the permanental polynomial \(\pi(G,x) = \operatorname{per}(xI-A(G))\) are both graph invariants used to distinguish graphs.
Ravindra Bapat   +2 more
doaj   +1 more source

A note on star coloring of central graph of bipartite graph and corona graph of complete graph with path and cycle [PDF]

open access: yesTransactions on Combinatorics, 2012
In this paper, we find the star chromatic number of central graph of complete bipartite graph and corona graph of complete graph with path and cycle.
V. J. Vernold, M. Venkatachalam
doaj  

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