Jia Bi

ORCID: 0000-0002-3773-3289
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Research Areas
  • Advanced Neural Network Applications
  • Stochastic Gradient Optimization Techniques
  • Sparse and Compressive Sensing Techniques
  • Machine Learning and ELM
  • Reinforcement Learning in Robotics
  • Brain Tumor Detection and Classification
  • Distributed and Parallel Computing Systems
  • Robotics and Sensor-Based Localization
  • Semantic Web and Ontologies
  • Robot Manipulation and Learning
  • Network Packet Processing and Optimization
  • Topic Modeling
  • Advanced Memory and Neural Computing
  • Natural Language Processing Techniques
  • Machine Learning and Data Classification
  • Ferroelectric and Negative Capacitance Devices
  • Language and cultural evolution
  • Computational Geometry and Mesh Generation
  • Multi-Criteria Decision Making
  • Infrastructure Maintenance and Monitoring
  • Advanced Vision and Imaging
  • Bayesian Modeling and Causal Inference
  • Wireless Signal Modulation Classification
  • Indoor and Outdoor Localization Technologies
  • Domain Adaptation and Few-Shot Learning

Rutherford Appleton Laboratory
2024-2025

Science and Technology Facilities Council
2024

University of Southampton
2018-2022

Hefei University of Technology
2014

Central South University
2013

Hebei University
2010

Institute of Computing Technology
2002-2005

Chinese Academy of Sciences
2002-2005

Mobile and embedded platforms are increasingly required to efficiently execute computationally demanding DNNs across heterogeneous processing elements. At run-time, the available hardware resources can vary considerably due other concurrently running applications. The performance requirements of applications could also change under different scenarios. To achieve desired performance, dynamic have been proposed in which number channels/layers be scaled real time meet varying resource...

10.1109/cvprw53098.2021.00347 article EN 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) 2021-06-01

Recently, there has been growing interest in improving the efficiency and accuracy of Indoor Positioning System (IPS). The Received Signal Strength- (RSS-) based fingerprinting technique is essential for indoor localization. However, it challenging to estimate position on RSS’s measurement under complex environment. This paper evaluates three machine learning approaches Gaussian Process (GP) regression with different kernels get best positioning model. hyperparameter tuning used select...

10.1155/2020/4696198 article EN Mathematical Problems in Engineering 2020-10-24

Motion planning has been used in robotics research to make movement decisions under certain constraints. Deep Reinforcement Learning (DRL) approaches have applied the cases of motion with continuous state representations. However, current DRL suffer from reward sparsity and overestimation issues. It is also challenging train agents deal complex task specifications deep neural network approximations. This paper considers one fragments Linear Temporal Logic (LTL), Generalized Reactivity rank 1...

10.3390/electronics11223716 article EN Electronics 2022-11-13

The Transformer architecture is widely used for machine translation tasks. However, its resource-intensive nature makes it challenging to implement on constrained embedded devices, particularly where available hardware resources can vary at run-time. We propose a dynamic model that scales the based any particular time. proposed approach, 'Dynamic-HAT', uses HAT SuperTransformer as backbone search SubTransformers with different accuracy-latency trade-offs design optimal are sampled from...

10.1109/mlcad52597.2021.9531281 article EN 2021-08-30

An improved dynamic Grid-based potential field method was proposed based on the consideration that goal, robot and obstacles in soccer compete are all dynamic. We combined advantages of grid method, set to represent environment, got function method. used form inspire search algorithm A* which is for adjacent nodes. The meets real-time planning requirements complex environment. And it has received very good results solving local minima problem traditional improving efficiency. It better...

10.4028/www.scientific.net/amr.139-141.1798 article EN Advanced materials research 2010-10-01

The moving sofa problem, introduced by Leo Moser in 1966, seeks to determine the maximal area of a 2D shape that can navigate an L-shaped corridor unit width. Joseph Gerver’s 1992 solution, providing lower bound approximately 2.2195, is best known, though its global optimality remains unproven. This paper leverages neural networks’ approximation power and recent advances invexity optimization explore optimality. We propose two approaches supporting conjecture his unique maximum. first...

10.3390/sym16101388 article EN Symmetry 2024-10-18

The Moving Sofa Problem, formally proposed by Leo Moser in 1966, seeks to determine the largest area of a two-dimensional shape that can navigate through an $L$-shaped corridor with unit width. current best lower bound is about 2.2195, achieved Joseph Gerver 1992, though its global optimality remains unproven. In this paper, we investigate problem leveraging universal approximation strength and computational efficiency neural networks. We report two approaches, both supporting Gerver's...

10.48550/arxiv.2407.11106 preprint EN arXiv (Cornell University) 2024-07-15

Reinforcement learning has been used to solve sequential decision-making problems in intelligent systems. However, current RL approaches suffer from slow convergence and reward sparsity, its mechanism is challenging deal with complex task specifications. As one of the software engineering practices, temporal logic can describe nonMarkovian specifications, synthesized strategy which could be as a priori knowledge train agents interact environment efficiently. This paper considers agent reacts...

10.1109/apsec57359.2022.00015 article EN 2022-12-01

Deep neural networks become more popular as its ability to solve very complex pattern recognition problems. However, deep often need massive computational and memory resources, which is main reason resulting them be difficult efficiently entirely running on embedded platforms. This work addresses this problem by saving the requirements of proposing a variance reduced (VR)-based optimization with regularization techniques compress models within fast training process. It shown theoretically...

10.1142/s0218213020600027 article EN International Journal of Artificial Intelligence Tools 2020-06-01

In BOM product matching, there will be several solutions based on the matching mechanism owing to fuzziness and diversity of customers needs. To select optimal through process, a quantization method, which evaluates according intuitive estimate, is proposed. Customers needs are consisted by many parameters, each parameter has values. First, initialize satisfaction level every value in requirements assessment. Second, as parameter, get difference pairwise comparison. Third, revise got second...

10.4028/www.scientific.net/amr.765-767.3266 article EN Advanced materials research 2013-09-01

Deep learning is becoming more widespread due to its power in solving complex classification problems. However, deep models often require large memory and energy consumption, which may prevent them from being deployed effectively on embedded platforms, limiting their application. This work addresses the problem of requirements by proposing a regularization approach compress footprint models. It shown that sparsity-inducing can be solved using an enhanced stochastic variance reduced gradient...

10.1109/ictai.2018.00016 article EN 2018-11-01

Nowadays, multi-relational classification has become a hotspot for research and application in the field of data mining. Compared to single table with simple structure, tables is more complicated. However, not all information good effects on classification. It may decrease accuracy algorithm when irrelevant relations are added. In this article, we optimized using usefulness backgrounds remove those which have little effect The results show that, method effective.

10.4028/www.scientific.net/amr.1070-1072.2066 article EN Advanced materials research 2014-12-01

A number of optimization approaches have been proposed for optimizing nonconvex objectives (e.g. deep learning models), such as batch gradient descent, stochastic descent and variance reduced descent. Theory shows these methods can converge by using an unbiased estimator. However, in practice biased estimation allow more efficient convergence to the vicinity since approach is computationally expensive. To produce fast there are two trade-offs strategies which between stochastic/batch,...

10.48550/arxiv.1905.05185 preprint EN cc-by arXiv (Cornell University) 2019-01-01

In this paper, we proposed a new technique, {\em variance controlled stochastic gradient} (VCSG), to improve the performance of reduced gradient (SVRG) algorithm. To avoid over-reducing by SVRG, hyper-parameter $\lambda$ is introduced in VCSG that able control SVRG. Theory shows optimization method can converge using an unbiased estimator, but practice, biased estimation allow more efficient convergence vicinity since approach computationally expensive. also has effect balancing trade-off...

10.48550/arxiv.2102.09893 preprint EN other-oa arXiv (Cornell University) 2021-01-01

Mobile and embedded platforms are increasingly required to efficiently execute computationally demanding DNNs across heterogeneous processing elements. At runtime, the available hardware resources can vary considerably due other concurrently running applications. The performance requirements of applications could also change under different scenarios. To achieve desired performance, dynamic have been proposed in which number channels/layers be scaled real time meet varying resource...

10.48550/arxiv.2105.03596 preprint EN cc-by arXiv (Cornell University) 2021-01-01
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