Search Results for author: Xinyue Chen

Found 13 papers, 6 papers with code

HiQA: A Hierarchical Contextual Augmentation RAG for Massive Documents QA

no code implementations1 Feb 2024 Xinyue Chen, Pengyu Gao, Jiangjiang Song, Xiaoyang Tan

As language model agents leveraging external tools rapidly evolve, significant progress has been made in question-answering(QA) methodologies utilizing supplementary documents and the Retrieval-Augmented Generation (RAG) approach.

Hallucination Language Modelling +2

Federated Deep Multi-View Clustering with Global Self-Supervision

no code implementations24 Sep 2023 Xinyue Chen, Jie Xu, Yazhou Ren, Xiaorong Pu, Ce Zhu, Xiaofeng Zhu, Zhifeng Hao, Lifang He

Second, the storage and usage of data from multiple clients in a distributed environment can lead to incompleteness of multi-view data.

Clustering

Revisiting the Role of Language Priors in Vision-Language Models

1 code implementation2 Jun 2023 Zhiqiu Lin, Xinyue Chen, Deepak Pathak, Pengchuan Zhang, Deva Ramanan

Our first observation is that they can be repurposed for discriminative tasks (such as image-text retrieval) by simply computing the match score of generating a particular text string given an image.

Image-text matching Language Modelling +6

Hybrid Transducer and Attention based Encoder-Decoder Modeling for Speech-to-Text Tasks

no code implementations4 May 2023 Yun Tang, Anna Y. Sun, Hirofumi Inaguma, Xinyue Chen, Ning Dong, Xutai Ma, Paden D. Tomasello, Juan Pino

In order to leverage strengths of both modeling methods, we propose a solution by combining Transducer and Attention based Encoder-Decoder (TAED) for speech-to-text tasks.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +4

Deep Learning and Medical Imaging for COVID-19 Diagnosis: A Comprehensive Survey

no code implementations13 Feb 2023 Song Wu, Yazhou Ren, Aodi Yang, Xinyue Chen, Xiaorong Pu, Jing He, Liqiang Nie, Philip S. Yu

In this survey, we investigate the main contributions of deep learning applications using medical images in fighting against COVID-19 from the aspects of image classification, lesion localization, and severity quantification, and review different deep learning architectures and some image preprocessing techniques for achieving a preciser diagnosis.

COVID-19 Diagnosis Image Classification

Rethinking and Recomputing the Value of ML Models

no code implementations30 Sep 2022 Burcu Sayin, Fabio Casati, Andrea Passerini, Jie Yang, Xinyue Chen

In this paper, we argue that the way we have been training and evaluating ML models has largely forgotten the fact that they are applied in an organization or societal context as they provide value to people.

Aggressive Q-Learning with Ensembles: Achieving Both High Sample Efficiency and High Asymptotic Performance

no code implementations17 Nov 2021 Yanqiu Wu, Xinyue Chen, Che Wang, Yiming Zhang, Keith W. Ross

In particular, Truncated Quantile Critics (TQC) achieves state-of-the-art asymptotic training performance on the MuJoCo benchmark with a distributional representation of critics; and Randomized Ensemble Double Q-Learning (REDQ) achieves high sample efficiency that is competitive with state-of-the-art model-based methods using a high update-to-data ratio and target randomization.

Continuous Control Q-Learning +1

Multi-Frequency Wireless Channel Measurements and Characteristics Analysis in Indoor Corridor Scenarios

no code implementations14 Aug 2021 ZiHao Zhou, Li Zhang, Xinyue Chen, Cheng-Xiang Wang, Jie Huang

In this paper, we conduct wireless channel measurements in indoor corridor scenarios at 2. 4, 5 and 6 GHz bands with bandwidth of 320 MHz.

Randomized Ensembled Double Q-Learning: Learning Fast Without a Model

6 code implementations ICLR 2021 Xinyue Chen, Che Wang, Zijian Zhou, Keith Ross

Using a high Update-To-Data (UTD) ratio, model-based methods have recently achieved much higher sample efficiency than previous model-free methods for continuous-action DRL benchmarks.

Q-Learning

Scalable Multi-Hop Relational Reasoning for Knowledge-Aware Question Answering

2 code implementations EMNLP 2020 Yanlin Feng, Xinyue Chen, Bill Yuchen Lin, Peifeng Wang, Jun Yan, Xiang Ren

Existing work on augmenting question answering (QA) models with external knowledge (e. g., knowledge graphs) either struggle to model multi-hop relations efficiently, or lack transparency into the model's prediction rationale.

Knowledge Graphs Question Answering +2

BAIL: Best-Action Imitation Learning for Batch Deep Reinforcement Learning

1 code implementation NeurIPS 2020 Xinyue Chen, Zijian Zhou, Zheng Wang, Che Wang, Yanqiu Wu, Keith Ross

There has recently been a surge in research in batch Deep Reinforcement Learning (DRL), which aims for learning a high-performing policy from a given dataset without additional interactions with the environment.

Imitation Learning Q-Learning +2

KagNet: Knowledge-Aware Graph Networks for Commonsense Reasoning

2 code implementations IJCNLP 2019 Bill Yuchen Lin, Xinyue Chen, Jamin Chen, Xiang Ren

Commonsense reasoning aims to empower machines with the human ability to make presumptions about ordinary situations in our daily life.

Ranked #29 on Common Sense Reasoning on CommonsenseQA (using extra training data)

Common Sense Reasoning Knowledge Base Question Answering +2

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