Search Results for author: Jia He

Found 11 papers, 1 papers with code

Fast OMP for Exact Recovery and Sparse Approximation

no code implementations29 Mar 2024 Huiyuan Yu, Jia He, Maggie Cheng

This paper advances OMP in two fronts: it offers a fast algorithm for the orthogonal projection of the input signal at each iteration, and a new selection criterion for making the greedy choice, which reduces the number of iterations it takes to recover the signal.

Securing Large Language Models: Threats, Vulnerabilities and Responsible Practices

no code implementations19 Mar 2024 Sara Abdali, Richard Anarfi, CJ Barberan, Jia He

Large language models (LLMs) have significantly transformed the landscape of Natural Language Processing (NLP).

Management

Decoding the AI Pen: Techniques and Challenges in Detecting AI-Generated Text

no code implementations9 Mar 2024 Sara Abdali, Richard Anarfi, CJ Barberan, Jia He

Large Language Models (LLMs) have revolutionized the field of Natural Language Generation (NLG) by demonstrating an impressive ability to generate human-like text.

Text Generation

UAV Swarm Deployment and Trajectory for 3D Area Coverage via Reinforcement Learning

no code implementations21 Sep 2023 Jia He, Ziye Jia, Chao Dong, Junyu Liu, Qihui Wu, Jingxian Liu

Unmanned aerial vehicles (UAVs) are recognized as promising technologies for area coverage due to the flexibility and adaptability.

Q-Learning

Generating Synergistic Formulaic Alpha Collections via Reinforcement Learning

1 code implementation25 May 2023 Shuo Yu, Hongyan Xue, Xiang Ao, Feiyang Pan, Jia He, Dandan Tu, Qing He

In practice, a set of formulaic alphas is often used together for better modeling precision, so we need to find synergistic formulaic alpha sets that work well together.

reinforcement-learning Reinforcement Learning (RL)

Style Miner: Find Significant and Stable Explanatory Factors in Time Series with Constrained Reinforcement Learning

no code implementations21 Mar 2023 Dapeng Li, Feiyang Pan, Jia He, Zhiwei Xu, Dandan Tu, Guoliang Fan

In high-dimensional time-series analysis, it is essential to have a set of key factors (namely, the style factors) that explain the change of the observed variable.

Time Series Time Series Analysis

Rethinking Pareto Approaches in Constrained Reinforcement Learning

no code implementations29 Sep 2021 Mengda Huang, Feiyang Pan, Jia He, Xiang Ao, Qing He

Constrained Reinforcement Learning (CRL) burgeons broad interest in recent years, which pursues both goals of maximizing long-term returns and constraining costs.

reinforcement-learning Reinforcement Learning (RL)

Efficient and Adaptive Kernelization for Nonlinear Max-margin Multi-view Learning

no code implementations11 Oct 2019 Changying Du, Jia He, Changde Du, Fuzhen Zhuang, Qing He, Guoping Long

Existing multi-view learning methods based on kernel function either require the user to select and tune a single predefined kernel or have to compute and store many Gram matrices to perform multiple kernel learning.

Data Augmentation MULTI-VIEW LEARNING

Learning beyond Predefined Label Space via Bayesian Nonparametric Topic Modelling

no code implementations10 Oct 2019 Changying Du, Fuzhen Zhuang, Jia He, Qing He, Guoping Long

In real world machine learning applications, testing data may contain some meaningful new categories that have not been seen in labeled training data.

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