Search Results for author: Liping Wang

Found 25 papers, 5 papers with code

Methods for Acquiring and Incorporating Knowledge into Stock Price Prediction: A Survey

no code implementations9 Aug 2023 Liping Wang, Jiawei Li, Lifan Zhao, Zhizhuo Kou, Xiaohan Wang, Xinyi Zhu, Hao Wang, Yanyan Shen, Lei Chen

Predicting stock prices presents a challenging research problem due to the inherent volatility and non-linear nature of the stock market.

Stock Price Prediction

Enhancing Cell Proliferation and Migration by MIR-Carbonyl Vibrational Coupling: Insights from Transcriptome Profiling

no code implementations3 Aug 2023 Xingkun Niu, Feng Gao, Shaojie Hou, Shihao Liu, Xinmin Zhao, Jun Guo, Liping Wang, Feng Zhang

Cell proliferation and migration highly relate to normal tissue self-healing, therefore it is highly significant for artificial controlling.

Unleashing the Potential of Unsupervised Deep Outlier Detection through Automated Training Stopping

1 code implementation26 May 2023 Yihong Huang, Yuang Zhang, Liping Wang, Xuemin Lin

To our knowledge, our approach is the first to enable reliable identification of the optimal training iteration during training without requiring any labels.

Outlier Detection

Application of probabilistic modeling and automated machine learning framework for high-dimensional stress field

no code implementations15 Mar 2023 Lele Luan, Nesar Ramachandra, Sandipp Krishnan Ravi, Anindya Bhaduri, Piyush Pandita, Prasanna Balaprakash, Mihai Anitescu, Changjie Sun, Liping Wang

Modern computational methods, involving highly sophisticated mathematical formulations, enable several tasks like modeling complex physical phenomenon, predicting key properties and design optimization.

Uncertainty Quantification

Unsupervised Graph Outlier Detection: Problem Revisit, New Insight, and Superior Method

1 code implementation24 Oct 2022 Yihong Huang, Liping Wang, Fan Zhang, Xuemin Lin

In addition, we observe that existing algorithms have a performance drop with the mitigated data leakage issue.

Attribute Graph Outlier Detection

A Framework for CSI-Based Indoor Localization with 1D Convolutional Neural Networks

no code implementations17 May 2022 Liping Wang, Sudeep Pasricha

Modern indoor localization techniques are essential to overcome the weak GPS coverage in indoor environments.

Denoising Indoor Localization

Fully Hyperbolic Graph Convolution Network for Recommendation

no code implementations10 Aug 2021 Liping Wang, Fenyu Hu, Shu Wu, Liang Wang

These methods embed users and items in Euclidean space, and perform graph convolution on user-item interaction graphs.

Graph Classification by Mixture of Diverse Experts

no code implementations29 Mar 2021 Fenyu Hu, Liping Wang, Shu Wu, Liang Wang, Tieniu Tan

Graph classification is a challenging research problem in many applications across a broad range of domains.

General Classification Graph Classification

GraphDIVE: Graph Classification by Mixture of Diverse Experts

1 code implementation journal 2021 Fenyu Hu, Liping Wang, Qiang Liu, Shu Wu, Liang Wang, Tieniu Tan

Graph classification is a challenging research problem in many applications across a broad range of domains.

Graph Classification

Discovery of Physics and Characterization of Microstructure from Data with Bayesian Hidden Physics Models

1 code implementation12 Mar 2021 Steven Atkinson, Yiming Zhang, Liping Wang

Remarkably, we find that the physics learned from the first specimen allows us to understand the backscattering observed in the latter sample, a qualitative feature that is wholly absent from the specimen from which the physics were inferred.

Concentration solutions to singularly prescribed Gaussian and geodesic curvatures problem

no code implementations9 Dec 2020 Liping Wang, Chunyi Zhao

We consider the following Liouville-type equation with exponential Neumann boundary condition: $$ -\Delta\tilde u = \varepsilon^2 K(x) e^{2\tilde u}, \quad x\in D, \qquad \frac{\partial \tilde u}{\partial n} + 1 = \varepsilon \kappa(x) e^{\tilde u}, \quad x\in\partial D, $$ where $D\subset \mathbb R^2$ is the unit disc, $\varepsilon^2 K(x)$ and $\varepsilon \kappa(x)$ stand for the prescribed Gaussian curvature and the prescribed geodesic curvature of the boundary, respectively.

Analysis of PDEs

Data-based Discovery of Governing Equations

no code implementations5 Dec 2020 Waad Subber, Piyush Pandita, Sayan Ghosh, Genghis Khan, Liping Wang, Roger Ghanem

Without a prior definition of the model structure, first a free-form of the equation is discovered, and then calibrated and validated against the available data.

Data-Informed Decomposition for Localized Uncertainty Quantification of Dynamical Systems

no code implementations14 Aug 2020 Waad Subber, Sayan Ghosh, Piyush Pandita, Yiming Zhang, Liping Wang

The region of interest can be specified based on the localization features of the solution, user interest, and correlation length of the random material properties.

Bayesian Inference Uncertainty Quantification

Advances in Bayesian Probabilistic Modeling for Industrial Applications

no code implementations26 Mar 2020 Sayan Ghosh, Piyush Pandita, Steven Atkinson, Waad Subber, Yiming Zhang, Natarajan Chennimalai Kumar, Suryarghya Chakrabarti, Liping Wang

The methodology, called GE's Bayesian Hybrid Modeling (GEBHM), is a probabilistic modeling method, based on the Kennedy and O'Hagan framework, that has been continuously scaled-up and industrialized over several years.

Physical Intuition

Bayesian task embedding for few-shot Bayesian optimization

1 code implementation2 Jan 2020 Steven Atkinson, Sayan Ghosh, Natarajan Chennimalai-Kumar, Genghis Khan, Liping Wang

We describe a method for Bayesian optimization by which one may incorporate data from multiple systems whose quantitative interrelationships are unknown a priori.

Bayesian Inference Bayesian Optimization

Data-driven discovery of free-form governing differential equations

no code implementations27 Sep 2019 Steven Atkinson, Waad Subber, Liping Wang, Genghis Khan, Philippe Hawi, Roger Ghanem

We present a method of discovering governing differential equations from data without the need to specify a priori the terms to appear in the equation.

Active Learning

A Strategy for Adaptive Sampling of Multi-fidelity Gaussian Process to Reduce Predictive Uncertainty

no code implementations26 Jul 2019 Sayan Ghosh, Jesper Kristensen, Yiming Zhang, Waad Subber, Liping Wang

Multi-fidelity Gaussian process is a common approach to address the extensive computationally demanding algorithms such as optimization, calibration and uncertainty quantification.

Uncertainty Quantification

Towards Scalable Gaussian Process Modeling

no code implementations25 Jul 2019 Piyush Pandita, Jesper Kristensen, Liping Wang

Accurately estimating these hyperparameters is a key ingredient in developing a reliable and generalizable surrogate model.

Joint Representation Classification for Collective Face Recognition

no code implementations18 May 2015 Liping Wang, Songcan Chen

In this paper, a joint representation classification (JRC) for collective face recognition is proposed.

Classification Face Recognition +2

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