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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.

168,742 papers · 148 categories

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55109164218 · Jun 202019922001200920172026
48 results for constrained embedding

A new method optimizes slicing directions for SW distances to improve high-dimensional probability measure comparison.

problem Challenging identification of informative slicing directions for SW distances.
method Constrained learning approach to optimize slicing directions, using continuous relaxations and gradient-based primal-dual approach.
result Demonstrated efficacy in learning more informative slicing directions on various high-dimensional data.

The kernel embedding algorithm is an important component for adapting kernel methods to large datasets. Since the algorithm consumes a major computation cost in the testing phase, we propose a novel teacher-learner framework of learning computation-efficient kernel embeddings from specific data. In the framework, the h…

2017-12-07abs ↗pdf ↗

Visual rendering of graphs is a key task in the mapping of complex network data. Although most graph drawing algorithms emphasize aesthetic appeal, certain applications such as travel-time maps place more importance on visualization of structural network properties. The present paper advocates two graph embedding appro…

2014-01-17abs ↗pdf ↗

Detects drifts in data for classification tasks using constrained embeddings.

problem Drifts in data affect model performance; unsupervised methods ignore label information.
method Task-sensitive semi-supervised drift detection with constrained low-dimensional embedding.
result Successfully detects real drifts affecting classification performance.

Dimensionality reduction is a topic of recent interest. In this paper, we present the classification constrained dimensionality reduction (CCDR) algorithm to account for label information. The algorithm can account for multiple classes as well as the semi-supervised setting. We present an out-of-sample expressions for …

2008-02-20abs ↗pdf ↗

Unified Lagrangian-based methods for nonsmooth nonconvex optimization.

problem Minimizing nonsmooth nonconvex functions with constraints.
method Developed a unified framework for Lagrangian-based methods using subgradient updates.
result Global convergence guarantees for the proposed framework under mild conditions.

Visual rendering of graphs is a key task in the mapping of complex network data. Although most graph drawing algorithms emphasize aesthetic appeal, certain applications such as travel-time maps place more importance on visualization of structural network properties. The present paper advocates a graph embedding approac…

2013-02-04abs ↗pdf ↗

CLEANN detects and mitigates neural network Trojans without labeled data.

problem Trojans in embedded neural networks that bypass detection during inference.
method Dictionary learning and sparse approximation for identifying Trojan triggers, lightweight algorithm/hardware co-design.
result Efficient real-time execution on resource-constrained platforms, competitive attack resiliency.

Delaunay tori minimize Willmore energy under isoperimetric constraints.

problem Finding minimizers of the Willmore energy under isoperimetric constraints.
method Constructing Delaunay tori using complete elliptic integrals and analyzing their Willmore energy.
result Existence of smoothly embedded tori minimizing the Willmore functional under isoperimetric constraints.

ALF reduces network parameters and operations by 70% and 61%, respectively, on embedded hardware.

problem Efficient deployment of deep learning models on resource-constrained hardware.
method Autoencoder-based low-rank filter-sharing technique.
result ALF achieves significant compression with minimal accuracy loss.

Graph embedding aims at learning a vector-based representation of vertices that incorporates the structure of the graph. This representation then enables inference of graph properties. Existing graph embedding techniques, however, do not scale well to large graphs. We therefore propose a framework for parallel computat…

2019-09-06abs ↗pdf ↗

Suppose MM is a complete, embedded minimal surface in R3\mathbb{R}^3 with an infinite number of ends, finite genus and compact boundary. We prove that the simple limit ends of MM have properly embedded representatives with compact boundary, genus zero and with constrained geometry. We use this result to show that if …

2018-06-08abs ↗pdf ↗

ClauseLens uses reinforcement learning to price reinsurance treaties transparently and auditably.

problem Opaque and difficult-to-audit reinsurance treaty pricing practices.
method ClauseLens models treaty pricing as a Risk-Aware Constrained Markov Decision Process (RA-CMDP), incorporating legal clauses and generating interpretable explanations.
result ClauseLens reduces solvency violations and improves tail-risk performance, achieving 88.2% accuracy in clause-grounded explanations.

Efficient method for constrained optimization under partial observations with provable convergence.

problem Optimizing under partial and constrained data.
method Improved acquisition functions and Gaussian process embedding for partially observable constraints.
result Empirically validated method outperforms traditional approaches.

Algorithm optimizes constrained reinforcement learning with dual variables.

problem Minimizing convex functional subject to convex constraint in large state spaces.
method VPDPO algorithm using Lagrangian and Fenchel duality.
result Achieves sublinear regret and constraint violation, globally optimal policy.

Enhanced GNN with expanded attention window and partially random embeddings.

problem Limited expressivity of traditional GNNs in distinguishing non-isomorphic graphs.
method Graph attention network with expanding attention window and partially random initial embeddings. Head dropout for regularization.
result Improved ability to differentiate between non-isomorphic graphs.

Physics-constrained deep learning predicts geophysical dynamics with boundedness.

problem Forecasting geophysical systems with hidden variables and incomplete observations.
method Physics-constrained neural ordinary differential equation (NODE) representations with boundedness constraints.
result The approach generalizes learned dynamics to arbitrary initial conditions.

This work optimizes quantization of linear models to reduce memory usage.

problem Optimizing memory usage for high-dimensional linear models.
method Information-theoretic framework with randomized embedding-based algorithms.
result Matching upper and lower bounds for minimax risk under quantization constraints.

Dual pairs constructed for volume preserving diffeomorphisms using symplectic geometry.

problem Understanding the group of volume preserving diffeomorphisms through symplectic geometry.
method Using cotangent bundles of spaces of smooth embeddings, symplectic reduction, and nonlinear Grassmannians of augmented submanifolds.
result Descriptions of coadjoint orbits of the group of volume preserving diffeomorphisms in terms of submanifolds of augmented spaces.

Study compares constrained and decoupled moduli spaces of manifolds with particles and discs.

problem Comparing constrained and decoupled moduli spaces of manifolds with embedded particles and discs.
method Generalized Bödigheimer--Tillmann's work to higher dimensions and different tangential structures.
result New results for surfaces with different tangential structures and higher dimensional manifolds.

Compressing word embeddings is important for deploying NLP models in memory-constrained settings. However, understanding what makes compressed embeddings perform well on downstream tasks is challenging---existing measures of compression quality often fail to distinguish between embeddings that perform well and those th…

2019-09-03abs ↗pdf ↗

Embeddings are one of the fundamental building blocks for data analysis tasks. Embeddings are already essential tools for large language models and image analysis, and their use is being extended to many other research domains. The generation of these distributed representations is often a data- and computation-expensi…

2019-10-13abs ↗pdf ↗

For every gN0g\in\mathbb{N}_0 and ε>0ε>0, we construct a smooth genus gg surface embedded into the unit ball with area 8π and Willmore energy smaller than 8π+ε8π+ ε. From this we deduce that a minimising sequence for Willmore's energy in the class of genus gg surfaces embedded in the unit ball with area 8π converges …

2016-08-09abs ↗pdf ↗

Near isometric orthogonal embeddings to lower dimensions are a fundamental tool in data science and machine learning. In this paper, we present the construction of such embeddings that minimizes the maximum distortion for a given set of points. We formulate the problem as a non convex constrained optimization problem. …

2017-11-30abs ↗pdf ↗

Graph embedding is a popular algorithmic approach for creating vector representations for individual vertices in networks. Training these algorithms at scale is important for creating embeddings that can be used for classification, ranking, recommendation and other common applications in industry. While industrial syst…

2019-07-03abs ↗pdf ↗

Metric learning methods for dimensionality reduction in combination with k-Nearest Neighbors (kNN) have been extensively deployed in many classification, data embedding, and information retrieval applications. However, most of these approaches involve pairwise training data comparisons, and thus have quadratic computat…

2017-02-21abs ↗pdf ↗

Simple non-convex methods outperform others in ordinal embedding.

problem Finding efficient Euclidean representations of abstract items using triplet comparisons.
method Comprehensive empirical evaluation of existing algorithms and a new neural network approach.
result Simple, non-convex methods consistently outperform other algorithms.

Enhanced PC2^2 improves surrogate modeling for high-dimensional problems.

problem Degrading performance and efficiency of PC2^2 in high-dimensional parameter spaces.
method Integrates SULM solver and D-optimal sampling strategy into PC2^2 framework.
result Enhanced PC2^2 demonstrates better comprehensive capability and efficiency.

The paper uncovers symmetries in large language models through layer-peeled optimization.

problem Understanding geometric structure in large language model weights and context embeddings.
method Constrained layer-peeled optimization program to analyze symmetries in next-token distributions.
result Symmetries in target next-token distributions are transferred to optimal model weights and context embeddings.

We demonstrate that graphs embedded on surfaces are a powerful and practical tool to generate, characterize and simulate networks with a broad range of properties. Remarkably, the study of topologically embedded graphs is non-restrictive because any network can be embedded on a surface with sufficiently high genus. The…

2011-07-18abs ↗pdf ↗

Adaptive regularization prevents overfitting in large-scale sparse feature models.

problem Overfitting in models with large-scale sparse categorical features.
method Adaptive regularization of embedding layers' norm budget.
result Improves model performance within a single epoch and prevents multi-epoch performance degradation.

For every   b>1  \;b>1\; fixed, we explicitly construct 11-dimensional families of embedded constrained Willmore tori parametrized by their conformal class   (a,b)\;(a,b)\; with   ab0+  \; a \sim_b 0^+\; deforming the homogenous torus \;fbf^b of conformal class \;(0,b).(0,b). The variational vector field at fbf^b is hereby given by a non…

2019-02-25abs ↗pdf ↗

Consensus clustering fuses diverse basic partitions (i.e., clustering results obtained from conventional clustering methods) into an integrated one, which has attracted increasing attention in both academic and industrial areas due to its robust and effective performance. Tremendous research efforts have been made to t…

2019-05-31abs ↗pdf ↗