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Yukuo Cen

5 accepted papers

2024

LongRAG: A Dual-Perspective Retrieval-Augmented Generation Paradigm for Long-Context Question Answering

EMNLP 2024main

Long-Context Question Answering (LCQA), a challenging task, aims to reason over long-context documents to yield accurate answers to questions. Existing long-context Large Language Models (LLMs) for LCQA often struggle with the “lost in the middle” issue. Retrieval-Augmented Generation (RAG) mitigate…

2023

MTDiag: An Effective Multi-Task Framework for Automatic Diagnosis

AAAI 2023technical

Automatic diagnosis systems aim to probe for symptoms (i.e., symptom checking) and diagnose disease through multi-turn conversations with patients. Most previous works formulate it as a sequential decision process and use reinforcement learning (RL) to decide whether to inquire about symptoms or mak…

Cited by 8SourcePDFScholar
2022

GACT: Activation Compressed Training for Generic Network Architectures

ICML 2022spotlight

Training large neural network (NN) models requires extensive memory resources, and Activation Compression Training (ACT) is a promising approach to reduce training memory footprint. This paper presents GACT, an ACT framework to support a broad range of machine learning tasks for generic NN architect…

2022

Rethinking the Setting of Semi-supervised Learning on Graphs

IJCAI 2022poster

We argue that the present setting of semisupervised learning on graphs may result in unfair comparisons, due to its potential risk of over-tuning hyper-parameters for models. In this paper, we highlight the significant influence of tuning hyper-parameters, which leverages the label information in th…

2021

Graph Robustness Benchmark: Benchmarking the Adversarial Robustness of Graph Machine Learning

NeurIPS 2021poster

Adversarial attacks on graphs have posed a major threat to the robustness of graph machine learning (GML) models. Naturally, there is an ever-escalating arms race between attackers and defenders. However, the strategies behind both sides are often not fairly compared under the same and realistic con…

Cited by 57SourcecodeScholar