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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.

168,878 papers · 148 categories

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110220330440 · Jun 202019922001200920172026
48 results for motion information

New framework predicts diverse, contextually plausible 3D human motions.

problem Predicting multiple plausible future 3D poses given observed poses.
method Developed a new variational framework that conditions latent variable on past observation to encourage relevant information.
result Our approach generates motions of higher quality and preserves contextual information.

This paper introduces a novel deep learning framework for image animation. Given an input image with a target object and a driving video sequence depicting a moving object, our framework generates a video in which the target object is animated according to the driving sequence. This is achieved through a deep architect…

2018-12-20abs ↗pdf ↗

Paper introduces a new method for generating diverse human motion predictions.

problem Stochastic human motion prediction with limited flexibility.
method Stochastically combines root variations with previous pose information in a recurrent network.
result Model generates more diverse motion sequences than existing techniques.

The paper explores anticipative binary information in financial markets using Brownian motion and Poisson processes.

problem Capturing anticipative information in financial markets with Brownian motion and Poisson processes.
method Using Malliavin calculus and filtration enlargement techniques, the paper computes the semimartingale decomposition of the processes.
result The paper provides the exact value of anticipative information in the pure jump case.

Improved motion prediction for self-driving cars using trajectory sets and auxiliary losses.

problem Accurately predicting future vehicle motion for self-driving cars.
method Classification over trajectory sets with an auxiliary loss for off-road predictions and spatial-temporal relationships.
result Significant improvement in motion prediction performance on small datasets using map information.

Selective relevance method improves motion explainability in 3D activity recognition models.

problem Models do not appropriately factor motion information into their decisions.
method Selective relevance method to adapt 2D explanation techniques for 3D inputs.
result Improves selectivity of motion explanations, revealing model's spatial bias.

Neural network predicts vessel motions with high accuracy.

problem Real-time prediction of heave and surge motions for improved performance and safety.
method Developed an LSTM-based machine learning model trained on measured waves and motion data.
result The model predicts vessel motions up to 46.5 seconds into the future with an average accuracy of 90%.

Accurately predicting the possible behaviors of traffic participants is an essential capability for future autonomous vehicles. The majority of current researches fix the number of driving intentions by considering only a specific scenario. However, distinct driving environments usually contain various possible driving…

2018-04-10abs ↗pdf ↗

Geometric approach improves motion alignment accuracy and efficiency.

problem Temporal alignment of human motion data for various applications.
method Geometric point of view, principal fiber bundle, reparameterization invariant projection, dynamic programming, keyframe correspondences.
result Temporal alignment procedures are more accurate and computationally efficient.

We derive an equation of motion for interest-rate yield curves by applying a minimum Fisher information variational approach to the implied probability density. By construction, solutions to the equation of motion recover observed bond prices. More significantly, the form of the resulting equation explains the success …

2005-07-13abs ↗pdf ↗

Modular method predicts motion in crowded scenes using learned environment models.

problem Predicting motion in dynamic, crowded environments.
method Modular model of spatial and dynamic aspects, unsupervised adaptation to new tasks.
result Comparable performance to state-of-the-art, transferable across tasks.

Study the link between entropy and market efficiency using fractal properties.

problem Determining market efficiency using entropy-based measures and fractal properties.
method Theoretical expression for market information using fractional Brownian motion and Lamperti transform. Multiscale method to interpret entropy and market information.
result A Hurst exponent close to 1/2 can lead to high informativeness of time series due to stationarity.

Lazy, perfectly informed investors trade infrequently due to costs.

problem The paradox of an omniscient yet lazy investor trading infrequently.
method Formalized the paradox using geometric and fractional Brownian motion models, derived closed-form profit functions, and proved existence and uniqueness of the optimal trading frequency.
result The optimal trading frequency can be interpreted through the fractal dimension of the price path.

Motion sensors such as accelerometers and gyroscopes measure the instant acceleration and rotation of a device, in three dimensions. Raw data streams from motion sensors embedded in portable and wearable devices may reveal private information about users without their awareness. For example, motion data might disclose …

2018-10-26abs ↗pdf ↗

A new method exposes motion-related relevance in video frames.

problem Deconstructing relevance in spatio-temporal models for video processing.
method Proposes a discriminative method to separate spatial and temporal relevance.
result Demonstrates effectiveness on UCF-101 action recognition dataset.

New method separates market motion from stock correlations.

problem Understanding the dynamics of stock correlations relative to market motion.
method Cluster reduced-rank correlation matrices by subtracting the largest eigenvalue.
result Extracted market states are quasi-stationary over long periods.

Navigated 2D multi-slice dynamic Magnetic Resonance (MR) imaging enables high contrast 4D MR imaging during free breathing and provides in-vivo observations for treatment planning and guidance. Navigator slices are vital for retrospective stacking of 2D data slices in this method. However, they also prolong the acquisi…

2018-04-12abs ↗pdf ↗

Generative model improves safety in self-driving simulators and human motion generation.

problem Improving generative models for constrained domains like safety-critical applications.
method Developed Gen-neG, a denoising diffusion model that uses oracle-assisted guidance.
result Empirically validated Gen-neG for collision avoidance and safety-guarded human motion generation.

This paper proposes IMU preintegrated features for efficient deep inertial odometry.

problem Efficient odometry from IMU data is challenging due to sensor imperfections and noise.
method Proposes IMU preintegrated features exploiting IMU motion model's manifold structure.
result Improves odometry performance and reduces computational burdens.

We extend the theory of asymmetric information in mispricing models for stocks following geometric Brownian motion to constant relative risk averse investors. Mispricing follows a continuous mean--reverting Ornstein--Uhlenbeck process. Optimal portfolios and maximum expected log--linear utilities from terminal wealth f…

2011-01-06abs ↗pdf ↗

In a given scenario, simultaneously and accurately predicting every possible interaction of traffic participants is an important capability for autonomous vehicles. The majority of current researches focused on the prediction of an single entity without incorporating the environment information. Although some approache…

2018-10-30abs ↗pdf ↗

New budget quantifies drift in closed-loop learning, improving reproducibility.

problem Characterizing statistical learning under distributional drift in closed-loop settings.
method Introduces an intrinsic drift budget CTC_T quantifying cumulative information-geometric motion of the data distribution.
result Proves a drift-feedback bound of order T1/2+CT/TT^{-1/2}+C_T/T for prequential reproducibility, up to controlled second-order remainder terms.

Motion Code models time series dynamics with sparse approximations.

problem Challenges in time series classification and forecasting on noisy data.
method Motion Code views time series as stochastic processes, assigning unique signatures to distinct dynamics.
result Motion Code outperforms benchmarks in noisy datasets, including real-world Parkinson's disease tracking.

In this paper, we focus on a prediction-based novelty estimation strategy upon the deep reinforcement learning (DRL) framework, and present a flow-based intrinsic curiosity module (FICM) to exploit the prediction errors from optical flow estimation as exploration bonuses. We propose the concept of leveraging motion fea…

2019-05-24abs ↗pdf ↗

Method learns attractive areas from agent motions to represent environments.

problem Representing environments based on moving agents' nonlinear motions.
method Switching model of velocity fields, parametric representation of attractive spots.
result Dynamic map of attractive areas for online learning.

Active learning improves subspace clustering with less labeled data.

problem Efficiently incorporating labeled data to improve subspace clustering models.
method Proposes an active learning framework for subspace clustering that queries informative points and updates the subspace model.
result Demonstrates the advantage of the proposed active strategy over state-of-the-art methods.

Introduces Motion Programs for better video analysis of human motion.

problem Current video analysis focuses on raw pixels or keypoints, missing higher-level motion primitives.
method Introduces Motion Programs as a neuro-symbolic representation of motions as a composition of high-level primitives.
result Motion Programs accurately describe diverse human motions and improve downstream tasks.

New method for predicting paths of unpredictable objects with high confidence.

problem Need for dependable uncertainty estimates in motion planning with diverse unpredictable objects.
method Blend online conformal prediction, multiple time series techniques, and heteroscedasticity addressing.
result Simultaneous forecasting bands that cover entire paths with high probability.

This work compresses sequences by treating them as continuous-time processes, enabling efficient discretization.

problem Efficient compression of sequences, especially with deep learning models that scale with sequence length.
method Treat sequences as continuous-time processes, learn efficient discretization, and decode at different time intervals.
result Automatic bit rate reductions in video and motion capture sequences using learned discretization.

We find a simple expression for the probability density of exp(Bss/2)ds\int \exp (B_s - s/2) ds in terms of its distribution function and the distribution function for the time integral of exp(Bs+s/2)\exp (B_s + s/2). The relation is obtained with a change of measure argument where expectations over events determined by the time integral…

2006-12-01abs ↗pdf ↗

Vortex induced vibrations of bluff bodies occur when the vortex shedding frequency is close to the natural frequency of the structure. Of interest is the prediction of the lift and drag forces on the structure given some limited and scattered information on the velocity field. This is an inverse problem that is not str…

2018-08-26abs ↗pdf ↗