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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,695 papers · 148 categories

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12233546 · Jun 202019922001200920172026
48 results for line-breaking passes

We analyze oversquashing in topological message-passing using relational structures.

problem Oversquashing in topological message-passing remains understudied.
method A unifying axiomatic framework that bridges graph and topological message-passing.
result Potential to advance topological deep learning.

Message passing is the key to graph neural networks, but new terms are needed to avoid confusion.

problem Current methods of graph neural networks cannot solve all problems over given input graphs.
method Demonstrates that any function of interest can be expressed using pairwise message passing over a modified graph.
result Message passing is the fundamental approach for graph neural networks, and new terms are needed to avoid confusion.

Optimizes reinforcement learning by prioritizing sets of samples over individual ones.

problem Limits exploration and improvement on harder examples due to focusing on isolated samples.
method Proposes Pass@K Policy Optimization (PKPO) to optimize for sets of samples that maximize reward when considered jointly.
result Optimization with novel low variance unbiased estimators for pass@k and its gradient leads to significant pass@k gains.

ADMP-GNN dynamically adjusts message-passing layers for better graph learning performance.

problem Fixed message-passing steps in GNNs do not account for nodes' varying computational needs.
method Proposes ADMP-GNN, which dynamically adjusts the number of message-passing layers for each node.
result Improves performance on node classification tasks compared to baseline GNN models.

Every classical knot is band-pass equivalent to the unknot or the trefoil. The band-pass class of a knot is a concordance invariant. Every ribbon knot, for example, is band-pass equivalent to the unknot. Here we introduce the long virtual knot concordance group VC\mathscr{VC}. It is shown that for every concordance cla…

2016-03-01abs ↗pdf ↗

New MCMC algorithm reduces subset selection passes to 2 for optimal kk-dimensional subspace approximation.

problem Subset selection for kk-dimensional subspace approximation with εε-approximation.
method MCMC sampling algorithm reducing passes to 2 for p=2p=2 case, poly(k/ε) size subset.
result Subset selection of nearly optimal size in 2 passes, (1+ε)(1+ε) approximation.

Factor graphs have recently gained increasing attention as a unified framework for representing and constructing algorithms for signal processing, estimation, and control. One capability that does not seem to be well explored within the factor graph tool kit is the ability to handle deterministic nonlinear transformati…

2019-03-21abs ↗pdf ↗

Study on convergence of graph neural networks on random graphs.

problem Convergence of message passing graph neural networks on large random graphs.
method Extended convergence results to a broad class of aggregation functions using McDiarmid inequality.
result Non-asymptotic bounds for convergence quantified with high probability.

Quantitative analysis of soccer players' passing ability focuses on descriptive statistics without considering the players' real contribution to the passing and ball possession strategy of their team. Which player is able to help the build-up of an attack, or to maintain the possession of the ball? We introduce a novel…

2016-08-08abs ↗pdf ↗

DG improves policy gradient efficiency by selectively backpropagating only valuable samples.

problem Expensive backward passes in policy gradient methods reduce efficiency.
method Introduces 'delight' as a forward-pass signal of learning value and a Kondo gate to selectively backpropagate.
result Selective backpropagation reduces backward pass costs without sacrificing learning quality.

Stochastic Gradient Descent can overfit after just a few passes, contrary to initial expectations.

problem Understanding the out-of-sample performance of multi-pass SGD in stochastic convex optimization.
method Analysis of multi-pass SGD in the stochastic convex optimization model.
result Multi-pass SGD can lead to significant overfitting after just a few passes, contrary to initial expectations.

One-pass algorithm finds small subset for p\ell_p subspace approximation with additive error.

problem Finding a small subset of data points for p\ell_p subspace approximation.
method One-pass subset selection with additive approximation guarantee for p[1,)p \in [1, \infty).
result First one-pass algorithm with additive error for p\ell_p subspace approximation.

We investigate minimal surfaces passing a given curve in R3R^{3}. Using the Frenet frame of a given curve and isothermal parameter, we derive the necessary and sufficient condition for minimal surface. Also we derive the parametric representation of two minimal surface families passing a circle and a helix as examples.

2014-08-16abs ↗pdf ↗

New algorithm reduces memory usage for multi-pass bandit problems.

problem Memory-efficient multi-pass bandit algorithms for large action spaces.
method Develops a BB-pass algorithm with O(1)O(1) memory that achieves optimal regret.
result Sharp memory-regret trade-off: O(1)O(1) memory suffices for Θ(T1/2)Θ(T^{1/2}) regret in BB passes.

Full-batch GD outperforms one-pass SGD in learning a single-index model with quadratic activation.

problem Learning a single-index model with quadratic activation using gradient descent.
method Full-batch gradient descent compared to one-pass stochastic gradient descent (SGD) on a correlation loss.
result Full-batch GD requires only ndn \simeq d samples for strong recovery, while one-pass SGD requires ndlogdn \gtrsim d\log d samples.

This paper analyzes multi-pass SGD for least squares, improving generalization bounds.

problem Improving generalization bounds for multi-pass SGD in the least squares problem.
method Develops an instance-dependent excess risk bound for least squares in the interpolation regime.
result SGD performs worse than GD instance-wise but saves computational time.

Introduces P-tensors for generalized higher-order message passing in graph neural networks.

problem Expanding the expressive power of graph neural networks through higher-order structures.
method Introduces P-tensors to define the most general form of permutation equivariant message passing.
result Achieves state-of-the-art performance on molecular datasets.

MPLP learns neural network weights by treating operations as message-passing agents.

problem Training neural networks using gradient-based methods.
method MPLP abstracts neural network operations as message-passing agents, updating internal states and passing messages.
result MPLP outperforms traditional gradient-based methods on simple feed-forward neural networks.

A pass-move and a $#$-move are local moves on oriented links defined by L.H. Kauffman and H. Murakami respectively. Two links are self pass-equivalent (resp. self $#$-equivalent) if one can be deformed into the other by pass-moves (resp. $#$-moves), where non of them can occur between distinct components of the link. T…

2000-06-06abs ↗pdf ↗

Paper interprets contrastive learning dynamics using message passing.

problem Lack of rigorous understanding of contrastive learning dynamics.
method Casts contrastive objective into message passing scheme on augmentation graph.
result The learning dynamics of contrastive learning can be theoretically characterized.

Agent uses message passing to optimize robot navigation, balancing exploration and exploitation.

problem Optimizing robot navigation in continuous-valued spaces with uncertainty.
method Autoregressive active inference agent using message passing on a factor graph.
result Agent modulates action based on predictive uncertainty, leading to better model of dynamics.

Bayesian online learning algorithm for one-pass data, achieving frequentist validity and uncertainty quantification.

problem Theoretical limitations in Bayesian online learning, especially in the one-pass setting.
method Proposed a new Bayesian online learning algorithm with a warm-start phase for the one-pass regime, establishing convergence rates and valid uncertainty quantification.
result The sequentially updated posterior attains optimal convergence rates and valid uncertainty quantification without diverging mini-batch sample sizes.

Convex message passing algorithms converge to a fixed point.

problem Understanding convergence properties of convex message passing methods.
method Proving convergence of coordinate descent applied to piecewise-affine convex objectives, and showing this applies to various message passing methods.
result The iterates converge to a fixed point of the method, and the algorithm terminates in a known number of iterations.

New algorithms accelerate MAP inference in Markov fields with faster convergence.

problem Finding the most likely configuration in discrete-valued Markov random fields.
method Entropy-regularized linear programming with accelerated gradient methods.
result Accelerated algorithms find optimal solutions faster, especially when the LP is tight.

The paper sets limits for GNNs solving PDEs to avoid under-reaching phenomenon.

problem Under-reaching phenomenon in GNNs solving PDEs.
method Sharp lower bounds for message-passing iterations based on PDE characteristics.
result Proposed lower bounds ensure efficient information propagation in GNNs.

Model trains passing events on a bridge using multilevel Gaussian process.

problem Represent aggregate train-passing events from a bridge monitoring system.
method Formulate a combined model with low-rank approximation hierarchical Gaussian process, incorporating domain expertise as constraints.
result Allow for simulation of previously unobserved train types.

PASS protects private attributes by stochastically substituting data.

problem Protecting private attributes in ML services while maintaining data utility.
method PASS uses stochastic data substitution with a novel loss function derived from information theory.
result PASS effectively protects private attributes across various datasets.

Enhances graph neural networks with structural message-passing for better generalization.

problem Limited representation power and inability to learn basic graph topological properties.
method Proposes a framework that includes a one-hot encoding of nodes and parametrized message and update functions ensuring permutation equivariance.
result Achieves state-of-the-art results on molecular graph regression on the ZINC dataset.