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Weiwei Lin

11 accepted papers

2026

Are We on the Right Way to Assess Document Retrieval-Augmented Generation?

AAAI 2026technical

Retrieval-Augmented Generation (RAG) systems using Multimodal Large Language Models (MLLMs) show great promise for complex document understanding, yet their development is critically hampered by inadequate evaluation. Current benchmarks often focus on specific part of document RAG system and use syn

Cited by 0SourcePDFScholar
2026

Experiential Fairness: Bridging the Gap Between User Experience and Resource-Centric Fairness in Online LLM Services

AAAI 2026technical

Conventional fairness in multi-tenant Large Language Model (LLM) inference services is typically defined by system-centric metrics such as equitable resource allocation. We argue that this is unilateral and it creates a gap between measured system performance and actual user-perceived quality. We ch

Cited by 0SourcePDFScholar
2026

Surgery: Mitigating Harmful Fine-Tuning for Large Language Models via Attention Sink

ICML 2026spotlight

Harmful fine-tuning can invalidate safety alignment of large language models, exposing significant safety risks. In this paper, we utilize the attention sink mechanism to mitigate harmful fine-tuning. Specifically, we first measure a statistic named *sink divergence* for each attention head and obse…

Cited by 0SourceScholar
2025

Continuous Autoregressive Modeling with Stochastic Monotonic Alignment for Speech Synthesis

ICLR 2025poster

We propose a novel autoregressive modeling approach for speech synthesis, combining a variational autoencoder (VAE) with a multi-modal latent space and an autoregressive model that uses Gaussian Mixture Models (GMM) as the conditional probability distribution. Unlike previous methods that rely on re…

Cited by 0SourcePDFScholar
2025

Temporal Query Network for Efficient Multivariate Time Series Forecasting

ICML 2025poster

Sufficiently modeling the correlations among variables (aka channels) is crucial for achieving accurate multivariate time series forecasting (MTSF). In this paper, we propose a novel technique called Temporal Query (TQ) to more effectively capture multivariate correlations, thereby improving model p…

2024

Asymmetric Clean Segments-Guided Self-Supervised Learning for Robust Speaker Verification

ICASSP 2024accepted

Contrastive self-supervised learning (CSL) for speaker verification (SV) has drawn increasing interest recently due to its ability to exploit unlabeled data. Performing data augmentation on raw waveforms, such as adding noise or reverberation, plays a pivotal role in achieving promising results in S…

Cited by 7SourceScholar
2024

CycleNet: Enhancing Time Series Forecasting through Modeling Periodic Patterns

NeurIPS 2024spotlight

The stable periodic patterns present in time series data serve as the foundation for conducting long-horizon forecasts. In this paper, we pioneer the exploration of explicitly modeling this periodicity to enhance the performance of models in long-term time series forecasting (LTSF) tasks. Specifical…

2024

SparseTSF: Modeling Long-term Time Series Forecasting with *1k* Parameters

ICML 2024oral

This paper introduces SparseTSF, a novel, extremely lightweight model for Long-term Time Series Forecasting (LTSF), designed to address the challenges of modeling complex temporal dependencies over extended horizons with minimal computational resources. At the heart of SparseTSF lies the Cross-Perio…

2023

Self-supervised Neural Factor Analysis for Disentangling Utterance-level Speech Representations

ICML 2023poster

Self-supervised learning (SSL) speech models such as wav2vec and HuBERT have demonstrated state-of-the-art performance on automatic speech recognition (ASR) and proved to be extremely useful in low label-resource settings. However, the success of SSL models has yet to transfer to utterance-level tas…

Cited by 7SourcePDFScholar
2020

Multi-Level Deep Neural Network Adaptation for Speaker Verification Using MMD and Consistency Regularization

ICASSP 2020accepted

Adapting speaker verification (SV) systems to a new environment is a very challenging task. Current adaptation methods in SV mainly focus on the backend, i.e, adaptation is carried out after the speaker embeddings have been created. In this paper, we present a DNN-based adaptation method using maxim…

Cited by 0SourceScholar