Search Results for author: Jiayu Liu

Found 10 papers, 3 papers with code

Bit-mask Robust Contrastive Knowledge Distillation for Unsupervised Semantic Hashing

1 code implementation10 Mar 2024 Liyang He, Zhenya Huang, Jiayu Liu, Enhong Chen, Fei Wang, Jing Sha, Shijin Wang

In this paper, we propose an innovative Bit-mask Robust Contrastive knowledge Distillation (BRCD) method, specifically devised for the distillation of semantic hashing models.

Image Retrieval Knowledge Distillation +1

Towards the Identifiability and Explainability for Personalized Learner Modeling: An Inductive Paradigm

no code implementations1 Sep 2023 Jiatong Li, Qi Liu, Fei Wang, Jiayu Liu, Zhenya Huang, Fangzhou Yao, Linbo Zhu, Yu Su

However, we notice that this paradigm leads to the inevitable non-identifiability and explainability overfitting problem, which is harmful to the quantification of learners' cognitive states and the quality of web learning services.

cognitive diagnosis

Model-Free Market Risk Hedging Using Crowding Networks

no code implementations13 Jun 2023 Vadim Zlotnikov, Jiayu Liu, Igor Halperin, Fei He, Lisa Huang

Crowding is widely regarded as one of the most important risk factors in designing portfolio strategies.

Learning by Applying: A General Framework for Mathematical Reasoning via Enhancing Explicit Knowledge Learning

no code implementations11 Feb 2023 Jiayu Liu, Zhenya Huang, ChengXiang Zhai, Qi Liu

In LeAp, we perform knowledge learning in a novel problem-knowledge-expression paradigm, with a Knowledge Encoder to acquire knowledge from problem data and a Knowledge Decoder to apply knowledge for expression reasoning.

Mathematical Reasoning

A Novel Approach for Auto-Formulation of Optimization Problems

no code implementations9 Feb 2023 Yuting Ning, Jiayu Liu, Longhu Qin, Tong Xiao, Shangzi Xue, Zhenya Huang, Qi Liu, Enhong Chen, Jinze Wu

In the Natural Language for Optimization (NL4Opt) NeurIPS 2022 competition, competitors focus on improving the accessibility and usability of optimization solvers, with the aim of subtask 1: recognizing the semantic entities that correspond to the components of the optimization problem; subtask 2: generating formulations for the optimization problem.

Ensemble Learning named-entity-recognition +2

Monotonic Risk Relationships under Distribution Shifts for Regularized Risk Minimization

1 code implementation20 Oct 2022 Daniel LeJeune, Jiayu Liu, Reinhard Heckel

Machine learning systems are often applied to data that is drawn from a different distribution than the training distribution.

Relation

Test-Time Training Can Close the Natural Distribution Shift Performance Gap in Deep Learning Based Compressed Sensing

1 code implementation14 Apr 2022 Mohammad Zalbagi Darestani, Jiayu Liu, Reinhard Heckel

We show that for four natural distribution shifts, this method essentially closes the distribution shift performance gap for state-of-the-art architectures for accelerated MRI.

Compressive Sensing Domain Adaptation +1

Combining Reinforcement Learning and Inverse Reinforcement Learning for Asset Allocation Recommendations

no code implementations6 Jan 2022 Igor Halperin, Jiayu Liu, Xiao Zhang

We suggest a simple practical method to combine the human and artificial intelligence to both learn best investment practices of fund managers, and provide recommendations to improve them.

reinforcement-learning Reinforcement Learning (RL)

Effective Version Space Reduction for Convolutional Neural Networks

no code implementations22 Jun 2020 Jiayu Liu, Ioannis Chiotellis, Rudolph Triebel, Daniel Cremers

In active learning, sampling bias could pose a serious inconsistency problem and hinder the algorithm from finding the optimal hypothesis.

Active Learning Image Classification

An Iterative Heuristic Method to Determine Radial Topology for Distribution System Restoration

no code implementations11 Dec 2019 Jiayu Liu, Qiqi Zhang, Jiaxu Li, Ying Wang

The case studies indicate that the proposed method can determine radial topology in a few seconds and ensure the restoration capacity.

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