Search Results for author: Qi Xu

Found 19 papers, 2 papers with code

Detecting Out-of-distribution Samples via Variational Auto-encoder with Reliable Uncertainty Estimation

no code implementations16 Jul 2020 Xuming Ran, Mingkun Xu, Lingrui Mei, Qi Xu, Quanying Liu

To address this problem, a reliable uncertainty estimation is considered to be critical for in-depth understanding of OOD inputs.

Anomaly Detection

Bigeminal Priors Variational auto-encoder

no code implementations5 Oct 2020 Xuming Ran, Mingkun Xu, Qi Xu, Huihui Zhou, Quanying Liu

The likelihood-based generative models have been reported to be highly robust to the out-of-distribution (OOD) inputs and can be a detector by assuming that the model assigns higher likelihoods to the samples from the in-distribution (ID) dataset than an OOD dataset.

Two Sample Unconditional Quantile Effect

no code implementations20 May 2021 Atsushi Inoue, Tong Li, Qi Xu

This paper proposes a new framework to evaluate unconditional quantile effects (UQE) in a data combination model.

counterfactual Vocal Bursts Valence Prediction

Deep Auto-encoder with Neural Response

no code implementations30 Nov 2021 Xuming Ran, Jie Zhang, Ziyuan Ye, Haiyan Wu, Qi Xu, Huihui Zhou, Quanying Liu

In this study, we propose an integrated framework called Deep Autoencoder with Neural Response (DAE-NR), which incorporates information from ANN and the visual cortex to achieve better image reconstruction performance and higher neural representation similarity between biological and artificial neurons.

Image Reconstruction

Task modules Partitioning, Scheduling and Floorplanning for Partially Dynamically Reconfigurable Systems Based on Modern Heterogeneous FPGAs

no code implementations11 Dec 2022 Bo Ding, Jinglei Huang, Junpeng Wang, Qi Xu, Song Chen, Yi Kang

To better solve the problems in the automation process of FPGA-PDRS and narrow the gap between algorithm and application, in this paper, we propose a complete workflow including three parts, pre-processing to generate the list of task modules candidate shapes according to the resources requirements, exploration process to search the solution of task modules partitioning, scheduling, and floorplanning, and post-optimization to improve the success rate of floorplan.

Scheduling

Constructing Deep Spiking Neural Networks from Artificial Neural Networks with Knowledge Distillation

no code implementations CVPR 2023 Qi Xu, Yaxin Li, Jiangrong Shen, Jian K Liu, Huajin Tang, Gang Pan

Spiking neural networks (SNNs) are well known as the brain-inspired models with high computing efficiency, due to a key component that they utilize spikes as information units, close to the biological neural systems.

Knowledge Distillation

Biologically inspired structure learning with reverse knowledge distillation for spiking neural networks

no code implementations19 Apr 2023 Qi Xu, Yaxin Li, Xuanye Fang, Jiangrong Shen, Jian K. Liu, Huajin Tang, Gang Pan

The proposed method explores a novel dynamical way for structure learning from scratch in SNNs which could build a bridge to close the gap between deep learning and bio-inspired neural dynamics.

Knowledge Distillation

Difference-in-Differences with Compositional Changes

no code implementations27 Apr 2023 Pedro H. C. Sant'Anna, Qi Xu

Additionally, we document a trade-off related to compositional changes: We derive the asymptotic bias of DR DiD estimators that erroneously exclude compositional changes and the efficiency loss when one fails to correctly rule out compositional changes.

NicePIM: Design Space Exploration for Processing-In-Memory DNN Accelerators with 3D-Stacked-DRAM

no code implementations30 May 2023 Junpeng Wang, Mengke Ge, Bo Ding, Qi Xu, Song Chen, Yi Kang

As one of the feasible processing-in-memory(PIM) architectures, 3D-stacked-DRAM-based PIM(DRAM-PIM) architecture enables large-capacity memory and low-cost memory access, which is a promising solution for DNN accelerators with better performance and energy efficiency.

Scheduling

ESL-SNNs: An Evolutionary Structure Learning Strategy for Spiking Neural Networks

no code implementations6 Jun 2023 Jiangrong Shen, Qi Xu, Jian K. Liu, Yueming Wang, Gang Pan, Huajin Tang

To take full advantage of low power consumption and improve the efficiency of these models further, the pruning methods have been explored to find sparse SNNs without redundancy connections after training.

Individualized Dynamic Model for Multi-resolutional Data with Application to Mobile Health

no code implementations21 Nov 2023 Jiuchen Zhang, Fei Xue, Qi Xu, Jung-Ah Lee, Annie Qu

In this paper, we propose an individualized dynamic latent factor model for irregular multi-resolution time series data to interpolate unsampled measurements of time series with low resolution.

Irregular Time Series Time Series

Graph Attention-Based Symmetry Constraint Extraction for Analog Circuits

no code implementations22 Dec 2023 Qi Xu, Lijie Wang, Jing Wang, Song Chen, Lin Cheng, Yi Kang

In recent years, analog circuits have received extensive attention and are widely used in many emerging applications.

Graph Attention

Enhancing Adaptive History Reserving by Spiking Convolutional Block Attention Module in Recurrent Neural Networks

no code implementations NeurIPS 2023 Qi Xu, Yuyuan Gao, Jiangrong Shen, Yaxin Li, Xuming Ran, Huajin Tang, Gang Pan

Spiking neural networks (SNNs) serve as one type of efficient model to process spatio-temporal patterns in time series, such as the Address-Event Representation data collected from Dynamic Vision Sensor (DVS).

Time Series

GroundingGPT:Language Enhanced Multi-modal Grounding Model

2 code implementations11 Jan 2024 Zhaowei Li, Qi Xu, Dong Zhang, Hang Song, Yiqing Cai, Qi Qi, Ran Zhou, Junting Pan, Zefeng Li, Van Tu Vu, Zhida Huang, Tao Wang

Beyond capturing global information like other multi-modal models, our proposed model excels at tasks demanding a detailed understanding of local information within the input.

Language Modelling Large Language Model

Localization of Dummy Data Injection Attacks in Power Systems Considering Incomplete Topological Information: A Spatio-Temporal Graph Wavelet Convolutional Neural Network Approach

no code implementations27 Jan 2024 Zhaoyang Qu, Yunchang Dong, Yang Li, Siqi Song, Tao Jiang, Min Li, Qiming Wang, Lei Wang, Xiaoyong Bo, Jiye Zang, Qi Xu

Unfortunately, this approach tends to overlook the inherent topological correlations within the non-Euclidean spatial attributes of power grid data, consequently leading to diminished accuracy in attack localization.

DragTex: Generative Point-Based Texture Editing on 3D Mesh

no code implementations4 Mar 2024 Yudi Zhang, Qi Xu, Lei Zhang

Creating 3D textured meshes using generative artificial intelligence has garnered significant attention recently.

Texture Synthesis

Tunable Superconducting Magnetic Levitation with Self-Stability

no code implementations28 Mar 2024 Qi Xu, Yi Lin, Yunfei Tan, Jianzhao Geng

For the first time, we experimentally demonstrate a self-stable type II superconducting maglev system which is able to: counteract long term levitation force decay, adjust levitation force and equilibrium position, and establish levitation under zero field cooling condition.

Cannot find the paper you are looking for? You can Submit a new open access paper.