Search Results for author: Pengcheng Li

Found 15 papers, 1 papers with code

Medical Speech Symptoms Classification via Disentangled Representation

no code implementations8 Mar 2024 Jianzong Wang, Pengcheng Li, xulong Zhang, Ning Cheng, Jing Xiao

After combining the intent from two domains into a joint representation, the integrated intent representation is fed into a decision layer for classification.

Classification

Exploring General Intelligence of Program Analysis for Multiple Tasks

no code implementations29 Sep 2021 Yixin Guo, Pengcheng Li, Yingwei Luo, Xiaolin Wang, Zhenlin Wang

To this end, we explore a generic program embedding approach that aim at solving multiple program analysis tasks.

Squeezing SGD Parallelization Performance in Distributed Training Using Delayed Averaging

no code implementations29 Sep 2021 Pengcheng Li, Yixin Guo, Yawen Zhang, Qinggang Zhou

Mini-batch Stochastic Gradient Descent (SGD) requires workers to halt forward/backward propagations, to wait for gradients synchronized among all workers before the next batch of tasks.

3D Dental model segmentation with graph attentional convolution network

no code implementations Pattern Recognition Letters 2021 Yue Zhao, Lingming Zhang, Chongshi Yang, Yingyun Tan, Yang Liu, Pengcheng Li, Tianhao Huang, Chenqiang Gao

We have evaluated our network on a real-patient dataset of dental models acquired through 3D intraoral scanners, and experimental results show that our method outperforms state-of-the-art deep learning methods for 3D shape segmentation.

Segmentation

Predicting Daily Trading Volume via Various Hidden States

no code implementations16 Jul 2021 Shaojun Ma, Pengcheng Li

Predicting intraday trading volume plays an important role in trading alpha research.

GRAPHSPY: Fused Program Semantic-Level Embedding via Graph Neural Networks for Dead Store Detection

no code implementations18 Nov 2020 Yixin Guo, Pengcheng Li, Yingwei Luo, Xiaolin Wang, Zhenlin Wang

To this end, we propose a learning-aided approach to identify unnecessary memory operations intelligently with low overhead.

Phoebe: Reuse-Aware Online Caching with Reinforcement Learning for Emerging Storage Models

no code implementations13 Nov 2020 Nan Wu, Pengcheng Li

With data durability, high access speed, low power efficiency and byte addressability, NVMe and SSD, which are acknowledged representatives of emerging storage technologies, have been applied broadly in many areas.

reinforcement-learning Reinforcement Learning (RL)

Learning Forward Reuse Distance

no code implementations31 Jul 2020 Pengcheng Li, Yongbin Gu

Inspired by the high prediction accuracy, we propose a pseudo OPT policy and evaluate it upon 13 real-world storage workloads from Microsoft Research.

Cloud Computing Management

DaSGD: Squeezing SGD Parallelization Performance in Distributed Training Using Delayed Averaging

no code implementations31 May 2020 Qinggang Zhou, Yawen Zhang, Pengcheng Li, Xiaoyong Liu, Jun Yang, Runsheng Wang, Ru Huang

The state-of-the-art deep learning algorithms rely on distributed training systems to tackle the increasing sizes of models and training data sets.

Query-Efficient Black-Box Attack by Active Learning

no code implementations13 Sep 2018 Pengcheng Li, Jin-Feng Yi, Lijun Zhang

To conduct black-box attack, a popular approach aims to train a substitute model based on the information queried from the target DNN.

Active Learning Adversarial Attack

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