Search Results for author: Zhijian Li

Found 11 papers, 3 papers with code

Generating Hard-Negative Out-of-Scope Data with ChatGPT for Intent Classification

1 code implementation8 Mar 2024 Zhijian Li, Stefan Larson, Kevin Leach

Intent classifiers must be able to distinguish when a user's utterance does not belong to any supported intent to avoid producing incorrect and unrelated system responses.

intent-classification Intent Classification

Feature Affinity Assisted Knowledge Distillation and Quantization of Deep Neural Networks on Label-Free Data

no code implementations10 Feb 2023 Zhijian Li, Biao Yang, Penghang Yin, Yingyong Qi, Jack Xin

In this paper, we propose a feature affinity (FA) assisted knowledge distillation (KD) method to improve quantization-aware training of deep neural networks (DNN).

Knowledge Distillation Quantization

Channel Pruning In Quantization-aware Training: An Adaptive Projection-gradient Descent-shrinkage-splitting Method

no code implementations9 Apr 2022 Zhijian Li, Jack Xin

We propose an adaptive projection-gradient descent-shrinkage-splitting method (APGDSSM) to integrate penalty based channel pruning into quantization-aware training (QAT).

Quantization

An integrated recurrent neural network and regression model with spatial and climatic couplings for vector-borne disease dynamics

no code implementations23 Jan 2022 Zhijian Li, Jack Xin, Guofa Zhou

We developed an integrated recurrent neural network and nonlinear regression spatio-temporal model for vector-borne disease evolution.

Recommendation Systems regression

DPVI: A Dynamic-Weight Particle-Based Variational Inference Framework

no code implementations2 Dec 2021 Chao Zhang, Zhijian Li, Hui Qian, Xin Du

We develop a general Dynamic-weight Particle-based Variational Inference (DPVI) framework according to a novel continuous composite flow, which evolves the positions and weights of particles simultaneously.

Variational Inference

A Deep Learning Approach for Macroscopic Energy Consumption Prediction with Microscopic Quality for Electric Vehicles

no code implementations25 Nov 2021 Ayman Moawad, Krishna Murthy Gurumurthy, Omer Verbas, Zhijian Li, Ehsan Islam, Vincent Freyermuth, Aymeric Rousseau

For this work, we leveraged a high-performance, agent-based transportation tool to model trips that occur in the Greater Chicago region under various scenario changes, along with physics-based modeling and simulation tools to provide high-fidelity energy consumption values.

Decision Making Feature Engineering +2

A Spatial-Temporal Graph Based Hybrid Infectious Disease Model with Application to COVID-19

no code implementations18 Oct 2020 Yunling Zheng, Zhijian Li, Jack Xin, Guofa Zhou

For edge feature, we design an RNN model to capture the neighboring effect and regularize the landscape of loss function so that local minima are effective and robust for prediction.

Time Series Time Series Analysis

An Integrated Approach to Produce Robust Models with High Efficiency

1 code implementation31 Aug 2020 Zhijian Li, Bao Wang, Jack Xin

To solve the problems that adversarial training jeopardizes DNNs' accuracy on clean images and the struture of sparsity, we design a trade-off loss function that helps DNNs preserve their natural accuracy and improve the channel sparsity.

Quantization Vocal Bursts Intensity Prediction

A Recurrent Neural Network and Differential Equation Based Spatiotemporal Infectious Disease Model with Application to COVID-19

no code implementations14 Jul 2020 Zhijian Li, Yunling Zheng, Jack Xin, Guofa Zhou

Modeling the trend of infection and real-time forecasting of cases can help decision making and control of the disease spread.

Decision Making

A Study on Graph-Structured Recurrent Neural Networks and Sparsification with Application to Epidemic Forecasting

2 code implementations13 Feb 2019 Zhijian Li, Xiyang Luo, Bao Wang, Andrea L. Bertozzi, Jack Xin

We study epidemic forecasting on real-world health data by a graph-structured recurrent neural network (GSRNN).

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