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Qianhui Liu

12 accepted papers

2026

Otters: An Energy-Efficient Spiking Transformer via Optical Time-to-First-Spike Encoding

ICLR 2026poster

Spiking neural networks (SNNs) promise high energy efficiency, particularly with time-to-first-spike (TTFS) encoding, which maximizes sparsity by emitting at most one spike per neuron. However, such energy advantage is often unrealized because inference requires evaluating a temporal decay function…

Cited by 0SourceScholar
2026

SpikeTrack: High-performance and Energy-efficient Event-Based Object Tracking with Spiking Neural Network

CVPR 2026

Event cameras have attracted considerable attention for object tracking due to their microsecond-level temporal resolution and wide dynamic range, yet effectively harnessing spiking neural networks (SNNs) in this domain remains challenging. In this paper, we introduce SpikeTrack, a purely spike-driv

Cited by 0SourceScholar
2025

Two-Stream Spiking Neural Network for Event-based Action Recognition

ICASSP 2025accepted

Spiking neural networks (SNNs) are increasingly applied to event-based data generated by event cameras due to their asynchronous and sparse properties. Event cameras can inherently respond to the changes in the scene, which is a quite desirable property for action recognition tasks. However, existin…

Cited by 0SourceScholar
2024

LitE-SNN: Designing Lightweight and Efficient Spiking Neural Network through Spatial-Temporal Compressive Network Search and Joint Optimization

IJCAI 2024poster

Spiking Neural Networks (SNNs) mimic the information-processing mechanisms of the human brain and are highly energy-efficient, making them well-suited for low-power edge devices. However, the pursuit of accuracy in current studies leads to large, long-timestep SNNs, conflicting with the resource con…

Cited by 7SourcePDFScholar
2024

SVAD: A Robust, Low-Power, and Light-Weight Voice Activity Detection with Spiking Neural Networks

ICASSP 2024accepted

Speech applications are expected to be low-power and robust under noisy conditions. An effective Voice Activity Detection (VAD) front-end lowers the computational need. Spiking Neural Networks (SNNs) are known to be biologically plausible and power-efficient. However, SNN-based VADs have yet to achi…

Cited by 0SourceScholar
2023

Learnable Surrogate Gradient for Direct Training Spiking Neural Networks

IJCAI 2023poster

Spiking neural networks (SNNs) have increasingly drawn massive research attention due to biological interpretability and efficient computation. Recent achievements are devoted to utilizing the surrogate gradient (SG) method to avoid the dilemma of non-differentiability of spiking activity to directl…

Cited by 32SourcePDFScholar
2022

Event-Based Multimodal Spiking Neural Network with Attention Mechanism

ICASSP 2022accepted

Human brain can effectively integrate visual and auditory information. Dynamic Vision Sensor (DVS) and Dynamic Audio Sensor (DAS) are event-based sensors imitating the mechanism of human retina and cochlea. Since the sensors record the visual and auditory input as asynchronous discrete events, they…

Cited by 0SourceScholar
2022

Multi-Level Firing with Spiking DS-ResNet: Enabling Better and Deeper Directly-Trained Spiking Neural Networks

IJCAI 2022poster

Spiking neural networks (SNNs) are bio-inspired neural networks with asynchronous discrete and sparse characteristics, which have increasingly manifested their superiority in low energy consumption. Recent research is devoted to utilizing spatio-temporal information to directly train SNNs by backpro…

2022

Stage-wise Stylistic Headline Generation: Style Generation and Summarized Content Insertion

IJCAI 2022poster

A quality headline with a high click-rate should not only summarize the content of an article, but also reflect a style that attracts users. Such demand has drawn rising attention to the task of stylistic headline generation (SHG). An intuitive method is to first generate plain headlines leveraged b…

2022

TinyLight: Adaptive Traffic Signal Control on Devices with Extremely Limited Resources

IJCAI 2022poster

Recent advances in deep reinforcement learning (DRL) have largely promoted the performance of adaptive traffic signal control (ATSC). Nevertheless, regarding the implementation, most works are cumbersome in terms of storage and computation. This hinders their deployment on scenarios where resources…

Cited by 13SourcePDFScholar
2021

Event-based Action Recognition Using Motion Information and Spiking Neural Networks

IJCAI 2021poster

Event-based cameras have attracted increasing attention due to their advantages of biologically inspired paradigm and low power consumption. Since event-based cameras record the visual input as asynchronous discrete events, they are inherently suitable to cooperate with the spiking neural network (S…

2021

Learning with Generated Teammates to Achieve Type-Free Ad-Hoc Teamwork

IJCAI 2021poster

In ad-hoc teamwork, an agent is required to cooperate with unknown teammates without prior coordination. To swiftly adapt to an unknown teammate, most works adopt a type-based approach, which pre-trains the agent with a set of pre-prepared teammate types, then associates the unknown teammate with a…