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Pengfei Wu

8 accepted papers

2024

Efficient Temporal Extrapolation of Multimodal Large Language Models with Temporal Grounding Bridge

EMNLP 2024main

Despite progress in multimodal large language models (MLLMs), the challenge of interpreting long-form videos in response to linguistic queries persists, largely due to the inefficiency in temporal grounding and limited pre-trained context window size. In this work, we introduce Temporal Grounding Br…

2024

Graph-Structured Speculative Decoding

ACL 2024findings

Speculative decoding has emerged as a promising technique to accelerate the inference of Large Language Models (LLMs) by employing a small language model to draft a hypothesis sequence, which is then validated by the LLM. The effectiveness of this approach heavily relies on the balance between perfo…

2024

Momentum Benefits Non-iid Federated Learning Simply and Provably

ICLR 2024poster

Federated learning is a powerful paradigm for large-scale machine learning, but it faces significant challenges due to unreliable network connections, slow commu- nication, and substantial data heterogeneity across clients. FedAvg and SCAFFOLD are two prominent algorithms to address these challenges…

Cited by 26SourcePDFScholar
2024

Temporal Correlation Vision Transformer for Video Person Re-Identification

AAAI 2024technical

Video Person Re-Identification (Re-ID) is a task of retrieving persons from multi-camera surveillance systems. Despite the progress made in leveraging spatio-temporal information in videos, occlusion in dense crowds still hinders further progress. To address this issue, we propose a Temporal Correla…

Cited by 5SourcePDFScholar
2022

A Gaussian Mixture Model for Dialogue Generation with Dynamic Parameter Sharing Strategy

ICASSP 2022accepted

Existing dialog models are trained with data in an encoder-decoder framework with the same parameters, ignoring the multinomial distribution nature in the dataset. In fact, model improvement and development commonly requires fine-grained modeling on individual data subsets. However, collecting a lab…

Cited by 0SourceScholar
2022

FORTAP: Using Formulas for Numerical-Reasoning-Aware Table Pretraining

ACL 2022long

Tables store rich numerical data, but numerical reasoning over tables is still a challenge. In this paper, we find that the spreadsheet formula, a commonly used language to perform computations on numerical values in spreadsheets, is a valuable supervision for numerical reasoning in tables. Consider…

2021

A Chapter-Wise Understanding System for Text-To-Speech in Chinese Novels

ICASSP 2021accepted

In TTS-based audiobook production, multi-role dubbing and emotional expressions can significantly improve the naturalness of audiobooks. However, it requires manual annotation of original novels with explicit speaker and emotion tags in sentence level, which is extremely time-consuming and costly. I…

Cited by 0SourceScholar
2021

Combining Curriculum Learning and Knowledge Distillation for Dialogue Generation

EMNLP 2021finding

Curriculum learning, a machine training strategy that feeds training instances to the model from easy to hard, has been proven to facilitate the dialogue generation task. Meanwhile, knowledge distillation, a knowledge transformation methodology among teachers and students networks can yield signific…

Cited by 33SourcePDFScholar