74 problems
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Roverato's conjecture on G-Wishart normalising constants
Roverato's conjecture. For every real number ,
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The Letac–Massam conjecture for Type I and Type II Wishart parameter sets
The Letac–Massam conjecture.
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Cancellation conjecture for alternative gauges on regular-lattice graphical models
Alternative-gauge cancellation conjecture. For some other classes of graphical models, such as those naturally defined on regular lattices, similar cancellations can take place for…
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Conjectured superiority of the improved spectral convergence bound
Consider the sufficient convergence bounds for loopy belief propagation (LBP) in graphical models with discrete variables and nonnegative factors, including Corollary … is stronger…
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The d-separation Markov property beyond additive-noise SDEs
Let a system of causal stochastic differential equations be a class of SDE systems, and suppose that instantaneous cycles are excluded. d-separation Markov-property conjecture. The…
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Cardwell's vertex-regularity conjecture for colored phylogenetic-tree models
Cardwell's conjecture. Every GL-binomial BMT-derived model derived from a phylogenetic tree with colored nodes must be vertex regular.
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The MNIST digit-slant conjecture for diagonal edge asymmetry
The MNIST images are represented on a pixel grid, and the estimated conditional independence graph exhibits more diagonal edges in the upper-right-to-lower-left direc…
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The conjectured consistency probability formula for cycles
Let be the cycle with edges, and let denote its consistency probability. Define … The cycle consistency probability conjecture. The consistency probability of…
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The extremal ML threshold relation for graphical models
Extremal ML threshold relation. For any undirected graph ,
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The extremal ML degree bound for graphical models
Extremal ML degree bound. For any graph ,
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Higher-order trek-polynomial formula for graphical discrete Lyapunov models
Higher-order trek-polynomial conjecture. The polynomial is
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The Erdős–Rényi random graph maximum likelihood threshold conjecture
Let be a random graph generated according to the Erdős–Rényi model , where is a fixed positive real number, and let be the minimum integer such that is…
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Partial-likelihood conjecture for learning process-wide conditional independence graphs
Let CEStGM denote the conditionally specified graphical model for stationary multivariate time series, with parameters and a process-wide conditional independe…
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Compactness conjecture for stationarity of conditionally specified graphical models
Let be the integral operator associated with the interaction kernel defining a conditionally specified stationary multivariate time-series model, and let stationarity mean that…
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The locally tree-like ensemble thermodynamic behavior conjecture
Graphical models on locally tree-like ensembles are expected to have thermodynamic behavior similar to that of graphical models on regular lattices, particularly concerning phase t…
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Non-adjacent-node merging conjecture for BMT-derived graphs
A BMT-derived graph is a graph obtained from the tree model by merging color classes of edges. Two internal nodes are non-adjacent when they are not joined by an edge in the underl…
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Vertex-regularity conjecture for toric BMT-derived Gaussian models
Let be a tree with distinct colors on all internal nodes, and let denote the inverse model associated with it. Leaves have the same color when…
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Conjecture on toric vanishing ideals of complete BMT-derived graphs
A BMT-derived graph is a graph obtained from the construction described in the paper, and its vanishing ideal is the ideal defining the associated model. A graph is toric if this v…
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The conjectured relation between algebraic and nested Markov equivalence
Algebraic–nested Markov equivalence conjecture. Algebraic equivalence can be related to nested Markov equivalence, in a way that would also make the algorithms for deciding algebra…
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Codimension conjecture for Spohn CI varieties of binary-choice games
Let be the undirected graphical model modelling a generic -player game with binary choices in normal form. Let and let…
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Extension of hyperplane gluing beyond clique separators
Hyperplane-gluing conjecture. This extension also works when the gluing set is not a clique.
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Conjecture on stabilised maximum likelihood estimates for star-shaped graphs
Stabilisation conjecture. For star-shaped graphs, the -MLE given any -stabilisation of a sample is a -MLE given if either a -MLE given exi…
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High-probability correctness conjecture for the SCCR2 algorithm
SCCR2 correctness conjecture. For all , there exists such that, with high probability, the SCCR2 algorithm outputs a set satisfying all prope…
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Reachability conjecture for the six-vertex state space
Reachability conjecture. For every , there exist and a directed path in starting at…
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Longest-path optimality conjecture for partially ordered partitions
Longest-path optimality conjecture. Starting from any partially ordered partition, following any longest non-self-intersecting directed path in eventually reaches an…