Search Results for author: Junfeng Liu

Found 14 papers, 2 papers with code

Generalization Gap in Data Augmentation: Insights from Illumination

no code implementations11 Apr 2024 Jianqiang Xiao, Weiwen Guo, Junfeng Liu, Mengze Li

In the field of computer vision, data augmentation is widely used to enrich the feature complexity of training datasets with deep learning techniques.

Data Augmentation

Word Order's Impacts: Insights from Reordering and Generation Analysis

no code implementations18 Mar 2024 Qinghua Zhao, Jiaang Li, Lei LI, Zenghui Zhou, Junfeng Liu

Existing works have studied the impacts of the order of words within natural text.

Adaptive Reconvergence-driven AIG Rewriting via Strategy Learning

no code implementations22 Dec 2023 Liwei Ni, Zonglin Yang, Jiaxi Zhang, Junfeng Liu, Huawei Li, Biwei Xie, Xinquan Li

Rewriting is a common procedure in logic synthesis aimed at improving the performance, power, and area (PPA) of circuits.

Context Retrieval via Normalized Contextual Latent Interaction for Conversational Agent

1 code implementation1 Dec 2023 Junfeng Liu, Zhuocheng Mei, Kewen Peng, Ranga Raju Vatsavai

However, existing methods are still not able to effectively and efficiently exploit relevant information from these auxiliary supplements to further unleash the power of the conversational agents and the language models they use.

Language Modelling Retrieval

MATA*: Combining Learnable Node Matching with A* Algorithm for Approximate Graph Edit Distance Computation

no code implementations4 Nov 2023 Junfeng Liu, Min Zhou, Shuai Ma, Lujia Pan

Graph Edit Distance (GED) is a general and domain-agnostic metric to measure graph similarity, widely used in graph search or retrieving tasks.

Graph Similarity

Persona-Coded Poly-Encoder: Persona-Guided Multi-Stream Conversational Sentence Scoring

no code implementations28 Sep 2023 Junfeng Liu, Christopher Symons, Ranga Raju Vatsavai

Recent advances in machine learning and deep learning have led to the widespread use of Conversational AI in many practical applications.

Response Generation Sentence

Persona-Based Conversational AI: State of the Art and Challenges

no code implementations4 Dec 2022 Junfeng Liu, Christopher Symons, Ranga Raju Vatsavai

First, we provide a literature review focusing on the current state-of-the-art methods that utilize persona information.

Response Generation

Contextualized Scene Imagination for Generative Commonsense Reasoning

1 code implementation ICLR 2022 Peifeng Wang, Jonathan Zamora, Junfeng Liu, Filip Ilievski, Muhao Chen, Xiang Ren

In this paper, we propose an Imagine-and-Verbalize (I&V) method, which learns to imagine a relational scene knowledge graph (SKG) with relations between the input concepts, and leverage the SKG as a constraint when generating a plausible scene description.

Common Sense Reasoning Descriptive +2

Empirical Quantitative Analysis of COVID-19 Forecasting Models

no code implementations1 Oct 2021 Yun Zhao, Yuqing Wang, Junfeng Liu, Haotian Xia, Zhenni Xu, Qinghang Hong, Zhiyang Zhou, Linda Petzold

In this paper, we perform quantitative analysis of COVID-19 forecasting of confirmed cases and deaths across different regions in the United States with different forecasting horizons, and evaluate the relative impacts of the following three dimensions on the predictive performance (improvement and variation) through different evaluation metrics: model selection, hyperparameter tuning, and the length of time series required for training.

Model Selection Time Series +1

Intersecting Surface defects and 3d Superconformal indices

no code implementations14 Jan 2021 Junfeng Liu, Yiwen Pan, Hong-Hao Zhang

Finally we propose a q-Virasoro construction for the superconformal indices.

High Energy Physics - Theory

Elastic Bulk Synchronous Parallel Model for Distributed Deep Learning

no code implementations6 Jan 2020 Xing Zhao, Manos Papagelis, Aijun An, Bao Xin Chen, Junfeng Liu, Yonggang Hu

To ameliorate this shortcoming of classic BSP, we propose ELASTICBSP a model that aims to relax its strict synchronization requirement.

Dynamic Graph Embedding via LSTM History Tracking

no code implementations5 Nov 2019 Shima Khoshraftar, Sedigheh Mahdavi, Aijun An, Yonggang Hu, Junfeng Liu

To handle large dynamic networks in downstream applications such as link prediction and anomaly detection, it is essential for such networks to be transferred into a low dimensional space.

Anomaly Detection Dynamic graph embedding +3

Dynamic Stale Synchronous Parallel Distributed Training for Deep Learning

no code implementations16 Aug 2019 Xing Zhao, Aijun An, Junfeng Liu, Bao Xin Chen

In this paper, we present a distributed paradigm on the parameter server framework called Dynamic Stale Synchronous Parallel (DSSP) which improves the state-of-the-art Stale Synchronous Parallel (SSP) paradigm by dynamically determining the staleness threshold at the run time.

Drug Selection via Joint Push and Learning to Rank

no code implementations23 Jan 2018 Yicheng He, Junfeng Liu, Xia Ning

We have developed a new learning-to-rank method, denoted as pLETORg , that predicts drug ranking structures in each cell line via using drug latent vectors and cell line latent vectors.

Learning-To-Rank

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