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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.

169,341 papers · 148 categories

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48 results for generation speedup

New insights explain speedup saturation in distributed learning with large batches and delays.

problem Understanding and optimizing speedup in distributed learning with large batches and delays.
method Theoretical analysis of strongly convex, convex, and non-convex settings, considering data sparsity.
result Identification of a data-dependent parameter explaining speedup saturation in both batch size and gradient staleness.

ProxSkip achieves linear speedup in distributed non-convex optimization.

problem Achieving linear speedup in distributed non-convex optimization.
method Unified convergence analysis for stochastic non-convex, convex, and strongly convex problems.
result ProxSkip achieves linear speedup in the number of nodes under stochastic gradients.

Linear speedup achieved in non-convex optimization for decentralized systems.

problem Achieving optimal performance in decentralized non-convex optimization.
method Examined the dependence of convergence guarantees on spectral properties of combination policies.
result Linear speedup in saddle-point escape time for symmetric combination policies.

Paper analyzes convergence and speedup of asynchronous parallel SGD.

problem Achieving good convergence and linear speedup in asynchronous parallel SGD.
method Second-order convergence analysis of APSGD with consistent read near strictly saddle points.
result Theoretical guarantee for using at most O(K1/3M1/3)O(K^{1/3}M^{-1/3}) workers for good convergence and linear speedup.

Quantum algorithms speed up derivative pricing beyond Black-Scholes models.

problem Quantum speedups for derivative pricing beyond Black-Scholes models.
method Utilizing fast-forwardability and quantum Milstein sampler for non-GBM models, and improved numerical integration for GBM and CIR models.
result Quadratic speedups for derivative pricing in practical models like CIR and Heston's model.

Quantum computing offers a quadratic speedup for estimating non-linear functionals.

problem Estimating non-linear functionals of probability distributions.
method Proposes a quantum-inside-quantum Monte Carlo algorithm for a broad class of non-linear estimation problems.
result Achieves a quadratic speedup for non-linear estimation problems, including nested conditional expectations and stochastic optimization.

Parallelizes LARS for high-dimensional data with speedups and accuracy trade-offs.

problem Fitting linear regression models to high-dimensional data efficiently.
method Two parallel and communication avoiding versions of LARS: bLARS and Tournament-bLARS.
result Speedups up to 4x compared to LARS, with trade-offs in solution quality.

Quantum algorithm speeds up nested expectation estimation by nearly quadratically.

problem Estimating repeatedly nested expectations with quantum computing.
method Proposes a quantum algorithm achieving nearly quadratic speedup over classical methods.
result Achieves nearly quadratic speedup for RNEs, up to logarithmic factors.

Federated Q-Learning achieves linear regret speedup with low communication cost.

problem Achieving linear regret speedup in federated reinforcement learning without high communication costs.
method Proposed two federated Q-Learning algorithms: FedQ-Hoeffding and FedQ-Bernstein, using event-triggered synchronization, novel step size selection, and concentration inequalities.
result Total regrets achieve linear speedup compared to single-agent counterparts with logarithmic communication cost.

Quantum algorithm speeds up MIP solving by a near-quadratic factor.

problem Solving Mixed Integer Programs (MIPs) efficiently.
method Incremental-Quantum-Branch-and-Bound algorithm combining quantum speedup with classical search heuristics.
result Universal near-quadratic speedup over classical Branch-and-Bound algorithms.

WU-UCT parallelizes MCTS with linear speedup and limited performance loss.

problem Challenges in parallelizing Monte Carlo Tree Search (MCTS) due to its sequential nature.
method Introduces unobserved samples to track incomplete simulations and modify UCT tree policy.
result Achieves linear speedup and only limited performance loss with increasing parallel workers.

Optimized parallel RNN training reaches up to 845x speedup.

problem Expensive RNN training through back-propagation through time (BPTT).
method Optimized parallel algorithm \opt based on ELM, leveraging GPU shared memory and QR factorization.
result Up to 845x speedup over sequential training and 20x less time to train.

New algorithm achieves linear speedup in non-i.i.d. federated bilevel learning.

problem Linear speedup in convergence for non-i.i.d. datasets in federated bilevel optimization.
method Proposes FedMBO with a novel client sampling scheme for non-i.i.d. datasets.
result Achieves a convergence rate of O(1/√(nK) + 1/K + √n/K³/²).

Efficiently approximates Sparse PCA with significant speedups and minor error.

problem Sparse Principal Component Analysis (Sparse PCA) is NP-hard and computationally expensive.
method Approximates the covariance matrix with block-diagonal form, solves sub-problems in each block, and reconstructs the solution.
result Significant computational speedups with minor additive error.

ECD algorithm speeds up non-convex optimization, offering quantum and stochastic enhancements.

problem Non-convex optimization challenges in machine learning.
method Energy Conserving Descent (ECD) algorithm, stochastic ECD dynamics (sECD), quantum ECD Hamiltonian (qECD).
result ECD and its quantum version achieve exponential speedup over gradient descent.

Unified analysis of Federated Averaging and Nesterov FedAvg for linear speedup.

problem Understanding convergence of FL algorithms under non-i.i.d. data and partial participation.
method Systematic study of convergence guarantees for FedAvg and Nesterov FedAvg under different conditions.
result Unified analysis of linear speedup for FedAvg and Nesterov FedAvg in various settings.

Investigates the impact of batch size on GPU and TPU performance.

problem Optimizing performance of GPUs and TPUs during training and inference phases.
method Investigated the impact of batch size on performance of GPUs and TPUs using standard MNIST and Fashion-MNIST datasets.
result Significant speedup was achieved even with low-scale usage of TPUv2 units, up to 10x for training and 2x for prediction.

We develop parallel and distributed Frank-Wolfe algorithms; the former on shared memory machines with mini-batching, and the latter in a delayed update framework. Whenever possible, we perform computations asynchronously, which helps attain speedups on multicore machines as well as in distributed environments. Moreover…

2014-09-22abs ↗pdf ↗

Quantum algorithm speeds up learning from big data exponentially.

problem Scalable learning from big data with optimized random features.
method Quantum algorithm for sampling optimized random features.
result Exponential speedup in runtime compared to classical algorithms.

RNN operators solve Newton's equations with large timesteps for molecular dynamics.

problem Solving Newton's equations of motion with large timesteps for molecular dynamics simulations.
method Recurrent Neural Networks (RNN) operators to solve Newton's equations using past trajectory data.
result Significant speedup in molecular dynamics simulations with timesteps up to 4000 times larger.

Federated learning algorithm improves with intermittent client availability.

problem Performance degradation in Federated Averaging due to client availability changes.
method Federated Latest Averaging (FedLaAvg) uses latest gradients from all clients, even when unavailable.
result FedLaAvg achieves sublinear speedup compared to classical Federated Averaging.

Paper studies collaboration in multi-armed bandits with limited interaction.

problem Identifying the best arm collaboratively with limited communication.
method Developed techniques to quantify and prove round-speedup tradeoffs.
result Almost tight round-speedup tradeoffs for distributed exploration.

CompactNet optimizes CNN models for resource-limited platforms.

problem Challenges in implementing CNN models on resource-limited platforms.
method Guided by a simulator, CompactNet progressively trims a pre-trained network to achieve target speedup while maintaining accuracy.
result Achieves up to 1.8x kernel computation speedup on embedded platforms.

Paper presents an efficient algorithm for learning minimax risk classifiers with large-scale data.

problem Efficient learning of minimax risk classifiers for large-scale data with multiple classes.
method Combination of constraint and column generation for efficient learning.
result 10x speedup for general large-scale data and 100x speedup with many classes.

CYCLADES speeds up machine learning with conflict-free asynchronous updates.

problem Improving parallel stochastic optimization in shared memory systems.
method Asynchronous parallelization without memory locking, introducing conflict-free updates.
result Consistently outperforms HOGWILD!-type algorithms, achieving up to 5x speedup gains.

Asynchronous parallel implementations of stochastic gradient (SG) have been broadly used in solving deep neural network and received many successes in practice recently. However, existing theories cannot explain their convergence and speedup properties, mainly due to the nonconvexity of most deep learning formulations …

2015-06-27abs ↗pdf ↗

The paper introduces a multi-scale model to speed up sparse approximation problems for visual signals.

problem Efficiently solving sparse approximation problems with large dictionaries.
method Incorporates multi-scale structure onto dictionary-based sparse representations.
result Significant speedups (10-60x) with little loss in accuracy for images, videos, and light fields.

We parallelize backpropagation for deep learning models, achieving significant speedups.

problem Sequential dependency in backpropagation limits scalability on parallel systems.
method Reformulated backpropagation as a scan operation, using Blelloch scan algorithm.
result Up to 2.75x speedup on overall training time and 108x on backward pass.