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Xiangang Li

24 accepted papers

2026

DrVoice: Parallel Speech-Text Voice Conversation Model via Dual-Resolution Speech Representations

ICLR 2026poster

Recent studies on end-to-end (E2E) speech generation with large language models (LLMs) have attracted significant community attention, with multiple works extending text-based LLMs to generate discrete speech tokens. Existing E2E approaches primarily fall into two categories: (1) Methods that genera…

Cited by 0SourceScholar
2026

FunCineForge: A Unified Dataset Pipeline and Model for Zero-Shot Movie Dubbing in Diverse Cinematic Scenes

IJCAI 2026

Movie dubbing is the task of synthesizing speech from scripts conditioned on video scenes, requiring accurate lip sync, faithful timbre transfer, and proper modeling of character identity and emotion. However, existing methods face two major limitations: (1) high-quality multimodal dubbing datasets

Cited by 0Scholar
2026

MME-Emotion: A Holistic Evaluation Benchmark for Emotional Intelligence in Multimodal Large Language Models

ICLR 2026poster

Recent advances in multimodal large language models (MLLMs) have catalyzed transformative progress in affective computing, enabling models to exhibit emergent emotional intelligence. Despite substantial methodological progress, current emotional benchmarks remain limited, as it is still unknown: (a)…

Cited by 0SourcecodeScholar
2026

PrismAudio: Decomposed Chain-of-Thought and Multi-dimensional Rewards for Video-to-Audio Generation

ICLR 2026poster

Video-to-Audio (V2A) generation requires balancing four critical perceptual dimensions: semantic consistency, audio-visual temporal synchrony, aesthetic quality, and spatial accuracy; yet existing methods suffer from objective entanglement that conflates competing goals in single loss functions and…

Cited by 0SourcecodeScholar
2026

STAR-VAE: Structured Topology-Aware Regularization for Audio Reconstruction and Generation

ICML 2026poster

Continuous Variational Autoencoders (VAEs) serve as the fundamental continuous tokenizer for modern neural audio generation systems, enabling high-fidelity reconstruction while providing a compact, smooth latent space for downstream generative priors. However, continuous VAEs face a fundamental conf…

Cited by 0SourcecodeScholar
2025

Memorizing is Not Enough: Deep Knowledge Injection Through Reasoning

ACL 2025long

Although large language models (LLMs) excel in knowledge recall and reasoning, their static nature leads to outdated information as the real world evolves or when adapting to domain-specific knowledge, highlighting the need for effective knowledge injection. However, current research on knowledge in…

2024

OpenChat: Advancing Open-source Language Models with Mixed-Quality Data

ICLR 2024poster

Nowadays, open-source large language models like LLaMA have emerged. Recent developments have incorporated supervised fine-tuning (SFT) and reinforcement learning fine-tuning (RLFT) to align these models with human goals. However, SFT methods treat all training data with mixed quality equally, while…

2023

Domain-Adapted Dependency Parsing for Cross-Domain Named Entity Recognition

AAAI 2023technical

In recent years, many researchers have leveraged structural information from dependency trees to improve Named Entity Recognition (NER). Most of their methods take dependency-tree labels as input features for NER model training. However, such dependency information is not inherently provided in most…

2022

Audio Deepfake Detection System with Neural Stitching for ADD 2022

ICASSP 2022accepted

This paper describes our best system and methodology for ADD 2022: The First Audio Deep Synthesis Detection Challenge[1]. The very same system was used for both two rounds of evaluation in Track 3.2 with similar training methodology. The first round of Track 3.2 data is generated from Text-to-Speech…

Cited by 0SourceScholar
2022

Audio-Visual Wake Word Spotting System for MISP Challenge 2021

ICASSP 2022accepted

This paper presents the details of our system designed for the Task 1 of Multimodal Information Based Speech Processing (MISP) Challenge 2021. The purpose of Task 1 is to leverage both audio and video information to improve the environmental robustness of far-field wake word spotting. In the propose…

Cited by 0SourceScholar
2022

Time Domain Adversarial Voice Conversion for ADD 2022

ICASSP 2022accepted

In this paper, we describe our speech generation system for the first Audio Deep Synthesis Detection Challenge (ADD 2022). Firstly, we build an any-to-many voice conversion (VC) system to convert source speech with arbitrary language content into target speaker’s fake speech. Then the converted spee…

Cited by 0SourceScholar
2022

To Answer or Not To Answer? Improving Machine Reading Comprehension Model with Span-based Contrastive Learning

NAACL 2022findings

Machine Reading Comprehension with Unanswerable Questions is a difficult NLP task, challenged by the questions which can not be answered from passages. It is observed that subtle literal changes often make an answerable question unanswerable, however, most MRC models fail to recognize such changes.…

2021

A Further Study of Unsupervised Pretraining for Transformer Based Speech Recognition

ICASSP 2021accepted

The construction of an effective good speech recognition system typically requires large amounts of transcribed data, which is expensive to collect. To overcome this problem, many unsupervised pretraining methods have been proposed. Among these methods, Masked Predictive Coding achieved significant…

Cited by 0SourceScholar
2021

Didispeech: A Large Scale Mandarin Speech Corpus

ICASSP 2021accepted

This paper introduces a new open-sourced Mandarin speech corpus, called DiDiSpeech. It consists of about 800 hours of speech data at 48kHz sampling rate from 6000 speakers and the corresponding texts. All speech data in the corpus is recorded in quiet environment and is suitable for various speech p…

Cited by 0SourceScholar
2021

KeSpeech: An Open Source Speech Dataset of Mandarin and Its Eight Subdialects

NeurIPS 2021poster

This paper introduces an open source speech dataset, KeSpeech, which involves 1,542 hours of speech signals recorded by 27,237 speakers in 34 cities in China, and the pronunciation includes standard Mandarin and its 8 subdialects. The new dataset possesses several properties. Firstly, the dataset pr…

Cited by 41SourceScholar
2021

Transformer Based Unsupervised Pre-Training for Acoustic Representation Learning

ICASSP 2021accepted

Recently, a variety of acoustic tasks and related applications arised. For many acoustic tasks, the labeled data size may be limited. To handle this problem, we propose an unsupervised pre-training method using Transformer based encoder to learn a general and robust high-level representation for all…

Cited by 0SourceScholar
2020

DNN-based Mask Estimation Integrating Spectral and Spatial Features for Robust Beamforming

ICASSP 2020accepted

Spectral mask based beamforming has showed competitive performance on multi-channel speech enhancement in recent years. However, such methods apply mask estimation on each channel and ensemble the masks from multiple channels into one for speech and noise covariance estimation. Spectral-spatial mask…

Cited by 0SourceScholar
2020

Selective Attention Encoders by Syntactic Graph Convolutional Networks for Document Summarization

ICASSP 2020accepted

Abstractive text summarization is a challenging task, and one need to design a mechanism to effectively extract salient information from the source text and then generate a summary. A parsing process of the source text contains critical syntactic or semantic structures, which is useful to generate m…

Cited by 0SourceScholar
2019

Replay Attack Detection Using Magnitude and Phase Information with Attention-based Adaptive Filters

ICASSP 2019accepted

Automatic Speech Verification (ASV) systems are highly vulnerable to spoofing attacks, and replay attack poses the greatest threat among various spoofing attacks. In this paper, we propose a novel multi-channel feature extraction method with attention-based adaptive filters (AAF). Original phase inf…

Cited by 0SourceScholar
2017

Gram-CTC: Automatic Unit Selection and Target Decomposition for Sequence Labelling

ICML 2017poster

Most existing sequence labelling models rely on a fixed decomposition of a target sequence into a sequence of basic units. These methods suffer from two major drawbacks: $1$) the set of basic units is fixed, such as the set of words, characters or phonemes in speech recognition, and $2$) the decompo…

Cited by 65SourcePDFScholar
2016

Deep Speech 2 : End-to-End Speech Recognition in English and Mandarin

ICML 2016poster

We show that an end-to-end deep learning approach can be used to recognize either English or Mandarin Chinese speech–two vastly different languages. Because it replaces entire pipelines of hand-engineered components with neural networks, end-to-end learning allows us to handle a diverse variety of s…

2015

Constructing long short-term memory based deep recurrent neural networks for large vocabulary speech recognition

ICASSP 2015accepted

Long short-term memory (LSTM) based acoustic modeling methods have recently been shown to give state-of-the-art performance on some speech recognition tasks. To achieve a further performance improvement, in this research, deep extensions on LSTM are investigated considering that deep hierarchical mo…

Cited by 0SourceScholar
2015

Improving long short-term memory networks using maxout units for large vocabulary speech recognition

ICASSP 2015accepted

Long short-tem memory (LSTM) recurrent neural networks have been shown to give state-of-the-art performance on many speech recognition tasks. To achieve a further performance improvement, in this paper, maxout units are proposed to be integrated with the LSTM cells, considering those units have brou…

Cited by 0SourceScholar