Search Results for author: Yijie Wang

Found 21 papers, 13 papers with code

YAYI-UIE: A Chat-Enhanced Instruction Tuning Framework for Universal Information Extraction

1 code implementation24 Dec 2023 Xinglin Xiao, Yijie Wang, Nan Xu, Yuqi Wang, Hanxuan Yang, Minzheng Wang, Yin Luo, Lei Wang, Wenji Mao, Daniel Zeng

The difficulty of the information extraction task lies in dealing with the task-specific label schemas and heterogeneous data structures.

UIE

Building explainable graph neural network by sparse learning for the drug-protein binding prediction

1 code implementation27 Aug 2023 Yang Wang, Zanyu Shi, Timothy Richardson, Kun Huang, Pathum Weerawarna, Yijie Wang

Due to the use of the chemical-substructure-based graph, it is guaranteed that any subgraphs in a drug identified by our SLGNN are chemically valid structures.

Sparse Learning valid

Fascinating Supervisory Signals and Where to Find Them: Deep Anomaly Detection with Scale Learning

2 code implementations25 May 2023 Hongzuo Xu, Yijie Wang, Juhui Wei, Songlei Jian, Yizhou Li, Ning Liu

Due to the unsupervised nature of anomaly detection, the key to fueling deep models is finding supervisory signals.

Anomaly Detection

Calibrated One-class Classification for Unsupervised Time Series Anomaly Detection

1 code implementation25 Jul 2022 Hongzuo Xu, Yijie Wang, Songlei Jian, Qing Liao, Yongjun Wang, Guansong Pang

Our one-class classifier is calibrated in two ways: (1) by adaptively penalizing uncertain predictions, which helps eliminate the impact of anomaly contamination while accentuating the predictions that the one-class model is confident in, and (2) by discriminating the normal samples from native anomaly examples that are generated to simulate genuine time series abnormal behaviors on the basis of original data.

One-Class Classification One-class classifier +2

Deep Isolation Forest for Anomaly Detection

2 code implementations14 Jun 2022 Hongzuo Xu, Guansong Pang, Yijie Wang, Yongjun Wang

Isolation forest (iForest) has been emerging as arguably the most popular anomaly detector in recent years due to its general effectiveness across different benchmarks and strong scalability.

Anomaly Detection Time Series +1

RayMVSNet: Learning Ray-based 1D Implicit Fields for Accurate Multi-View Stereo

no code implementations CVPR 2022 Junhua Xi, Yifei Shi, Yijie Wang, Yulan Guo, Kai Xu

In particular, we propose RayMVSNet which learns sequential prediction of a 1D implicit field along each camera ray with the zero-crossing point indicating scene depth.

Multi-Task Learning

Provable Constrained Stochastic Convex Optimization with XOR-Projected Gradient Descent

no code implementations22 Mar 2022 Fan Ding, Yijie Wang, Jianzhu Ma, Yexiang Xue

Here we propose XOR-PGD, a novel algorithm based on Projected Gradient Descent (PGD) coupled with the XOR sampler, which is guaranteed to solve the constrained stochastic convex optimization problem still in linear convergence rate by choosing proper step size.

Management

Resource allocation algorithm for MEC based on Deep Reinforcement Learning

no code implementations IEEE 2022 Yijie Wang, Xin Chen, Ying Chen, Shougang Du

In recent years, driven by the commercialization of the 6th Generation Communication Technology (6G), an increasing number of 6G devices connected to mobile networks produces computation-intensive tasks such as ultra-high-resolution video streaming, inter-active visual reality (VR) gaming, augmented reality (AR).

Edge-computing reinforcement-learning

Fast Projection onto the Capped Simplex with Applications to Sparse Regression in Bioinformatics

no code implementations NeurIPS 2021 Andersen Ang, Jianzhu Ma, Nianjun Liu, Kun Huang, Yijie Wang

We demonstrate that the proposed algorithm can produce a solution of the projection problem with high precision on large scale datasets, and the algorithm is able to significantly outperform the state-of-the-art methods in terms of runtime (about 6-8 times faster than a commercial software with respect to CPU time for input vector with 1 million variables or more).

regression

DRAM Failure Prediction in AIOps: Empirical Evaluation, Challenges and Opportunities

no code implementations30 Apr 2021 Zhiyue Wu, Hongzuo Xu, Guansong Pang, Fengyuan Yu, Yijie Wang, Songlei Jian, Yongjun Wang

DRAM failure prediction is a vital task in AIOps, which is crucial to maintain the reliability and sustainable service of large-scale data centers.

Multi-class Classification Unsupervised Anomaly Detection

Beyond Outlier Detection: Outlier Interpretation by Attention-Guided Triplet Deviation Network

1 code implementation19 Apr 2021 Hongzuo Xu, Yijie Wang, Songlei Jian, Zhenyu Huang, Ning Liu, Yongjun Wang, Fei Li

We obtain an optimal attention-guided embedding space with expanded high-level information and rich semantics, and thus outlying behaviors of the queried outlier can be better unfolded.

Anomaly Detection Outlier Interpretation

Wasserstein Robust Classification with Fairness Constraints

no code implementations11 Mar 2021 Yijie Wang, Viet Anh Nguyen, Grani A. Hanasusanto

We propose a distributionally robust classification model with a fairness constraint that encourages the classifier to be fair in view of the equality of opportunity criterion.

Attribute Classification +2

Physical Distance Between Quantum States

1 code implementation13 Jul 2020 Zhenduo Wang, Yijie Wang, Biao Wu

We propose a physical distance between two quantum states.

Quantum Physics

Outlier Detection Ensemble with Embedded Feature Selection

no code implementations15 Jan 2020 Li Cheng, Yijie Wang, Xinwang Liu, Bin Li

Existing methods usually perform feature selection and outlier scoring separately, which would select feature subsets that may not optimally serve for outlier detection, leading to unsatisfying performance.

feature selection Outlier Detection

HPLFlowNet: Hierarchical Permutohedral Lattice FlowNet for Scene Flow Estimation on Large-scale Point Clouds

2 code implementations CVPR 2019 Xiuye Gu, Yijie Wang, Chongruo wu, Yong-Jae lee, Panqu Wang

We present a novel deep neural network architecture for end-to-end scene flow estimation that directly operates on large-scale 3D point clouds.

Scene Flow Estimation

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