Search Results for author: Jiayi Liu

Found 27 papers, 7 papers with code

Incorporating Casual Analysis into Diversified and Logical Response Generation

no code implementations COLING 2022 Jiayi Liu, Wei Wei, Zhixuan Chu, Xing Gao, Ji Zhang, Tan Yan, Yulin kang

Although the Conditional Variational Auto-Encoder (CVAE) model can generate more diversified responses than the traditional Seq2Seq model, the responses often have low relevance with the input words or are illogical with the question.

Response Generation

Survey on Modeling of Articulated Objects

no code implementations22 Mar 2024 Jiayi Liu, Manolis Savva, Ali Mahdavi-Amiri

3D modeling of articulated objects is a research problem within computer vision, graphics, and robotics.

Object

CliqueParcel: An Approach For Batching LLM Prompts That Jointly Optimizes Efficiency And Faithfulness

no code implementations17 Feb 2024 Jiayi Liu, Tinghan Yang, Jennifer Neville

Our experiments explore the performance of CliqueParcel, including efficiency, faithfulness, and the trade-off between them.

Question Answering Reading Comprehension

CAGE: Controllable Articulation GEneration

no code implementations15 Dec 2023 Jiayi Liu, Hou In Ivan Tam, Ali Mahdavi-Amiri, Manolis Savva

We address the challenge of generating 3D articulated objects in a controllable fashion.

Denoising Object

PARIS: Part-level Reconstruction and Motion Analysis for Articulated Objects

1 code implementation ICCV 2023 Jiayi Liu, Ali Mahdavi-Amiri, Manolis Savva

Our approach improves reconstruction relative to state-of-the-art baselines with a Chamfer-L1 distance reduction of 3. 94 (45. 2%) for objects and 26. 79 (84. 5%) for parts, and achieves 5% error rate for motion estimation across 10 object categories.

Motion Estimation Object

Stationary Algorithmic Balancing For Dynamic Email Re-Ranking Problem

1 code implementation12 Aug 2023 Jiayi Liu, Jennifer Neville

Email platforms need to generate personalized rankings of emails that satisfy user preferences, which may vary over time.

Re-Ranking

CValues: Measuring the Values of Chinese Large Language Models from Safety to Responsibility

1 code implementation19 Jul 2023 Guohai Xu, Jiayi Liu, Ming Yan, Haotian Xu, Jinghui Si, Zhuoran Zhou, Peng Yi, Xing Gao, Jitao Sang, Rong Zhang, Ji Zhang, Chao Peng, Fei Huang, Jingren Zhou

In this paper, we present CValues, the first Chinese human values evaluation benchmark to measure the alignment ability of LLMs in terms of both safety and responsibility criteria.

ChatPLUG: Open-Domain Generative Dialogue System with Internet-Augmented Instruction Tuning for Digital Human

1 code implementation16 Apr 2023 Junfeng Tian, Hehong Chen, Guohai Xu, Ming Yan, Xing Gao, Jianhai Zhang, Chenliang Li, Jiayi Liu, Wenshen Xu, Haiyang Xu, Qi Qian, Wei Wang, Qinghao Ye, Jiejing Zhang, Ji Zhang, Fei Huang, Jingren Zhou

In this paper, we present ChatPLUG, a Chinese open-domain dialogue system for digital human applications that instruction finetunes on a wide range of dialogue tasks in a unified internet-augmented format.

World Knowledge

Joint Spectrum and Power Allocation for V2X Communications with Imperfect CSI

no code implementations21 Feb 2023 Peng Wang, Weihua Wu, Jiayi Liu, Guanhua Chai, Li Feng

More specifically, Bernstein approximations are employed to convert the chance constraint into a calculable constraint, and Bisection search method is proposed to obtain the optimal allocation solution with low complexity.

Self-Learning

Incorporating Causal Analysis into Diversified and Logical Response Generation

no code implementations20 Sep 2022 Jiayi Liu, Wei Wei, Zhixuan Chu, Xing Gao, Ji Zhang, Tan Yan, Yulin kang

Although the Conditional Variational AutoEncoder (CVAE) model can generate more diversified responses than the traditional Seq2Seq model, the responses often have low relevance with the input words or are illogical with the question.

Response Generation

Generating Persuasive Responses to Customer Reviews with Multi-Source Prior Knowledge in E-commerce

no code implementations20 Sep 2022 Bo Chen, Jiayi Liu, Mieradilijiang Maimaiti, Xing Gao, Ji Zhang

A multi-aspect attentive network is proposed to automatically attend to different aspects in a review and ensure most of the issues are tackled.

Response Generation

Improving Personality Consistency in Conversation by Persona Extending

1 code implementation23 Aug 2022 Yifan Liu, Wei Wei, Jiayi Liu, Xianling Mao, Rui Fang, Dangyang Chen

Endowing chatbots with a consistent personality plays a vital role for agents to deliver human-like interactions.

Chatbot Natural Language Inference +1

Exemplar-based Pattern Synthesis with Implicit Periodic Field Network

no code implementations CVPR 2022 Haiwei Chen, Jiayi Liu, Weikai Chen, Shichen Liu, Yajie Zhao

In this paper, we propose an exemplar-based visual pattern synthesis framework that aims to model the inner statistics of visual patterns and generate new, versatile patterns that meet the aforementioned requirements.

Generative Adversarial Network Texture Synthesis

Movie Genre Classification by Language Augmentation and Shot Sampling

1 code implementation24 Mar 2022 Zhongping Zhang, Yiwen Gu, Bryan A. Plummer, Xin Miao, Jiayi Liu, Huayan Wang

We evaluate our method on MovieNet and Condensed Movies datasets, achieving approximate 6-9% improvement in mean Average Precision (mAP) over the baselines.

Action Recognition Boundary Detection +6

ImageSubject: A Large-scale Dataset for Subject Detection

no code implementations9 Jan 2022 Xin Miao, Jiayi Liu, Huayan Wang, Jun Fu

We present a new dataset with the goal of training models to understand the layout of the objects and the context of the image then to find the main subjects among them.

object-detection Object Detection +1

Fine-Grained Control of Artistic Styles in Image Generation

no code implementations19 Oct 2021 Xin Miao, Huayan Wang, Jun Fu, Jiayi Liu, Shen Wang, Zhenyu Liao

The style vectors are fed to the generator and discriminator to achieve fine-grained control.

Image Generation

Topologically Consistent Multi-View Face Inference Using Volumetric Sampling

no code implementations ICCV 2021 Tianye Li, Shichen Liu, Timo Bolkart, Jiayi Liu, Hao Li, Yajie Zhao

We propose ToFu, Topologically consistent Face from multi-view, a geometry inference framework that can produce topologically consistent meshes across facial identities and expressions using a volumetric representation instead of an explicit underlying 3DMM.

3D Reconstruction

Emotion-aware Chat Machine: Automatic Emotional Response Generation for Human-like Emotional Interaction

no code implementations6 Jun 2021 Wei Wei, Jiayi Liu, Xianling Mao, Guibing Guo, Feida Zhu, Pan Zhou, Yuchong Hu

The consistency of a response to a given post at semantic-level and emotional-level is essential for a dialogue system to deliver human-like interactions.

Response Generation

Stochastic Whitening Batch Normalization

no code implementations CVPR 2021 Shengdong Zhang, Ehsan Nezhadarya, Homa Fashandi, Jiayi Liu, Darin Graham, Mohak Shah

BN uses scaling and shifting to normalize activations of mini-batches to accelerate convergence and improve generalization.

Image Classification

Target Guided Emotion Aware Chat Machine

no code implementations15 Nov 2020 Wei Wei, Jiayi Liu, Xianling Mao, Guibin Guo, Feida Zhu, Pan Zhou, Yuchong Hu, Shanshan Feng

The consistency of a response to a given post at semantic-level and emotional-level is essential for a dialogue system to deliver human-like interactions.

Pruning Algorithms to Accelerate Convolutional Neural Networks for Edge Applications: A Survey

no code implementations8 May 2020 Jiayi Liu, Samarth Tripathi, Unmesh Kurup, Mohak Shah

With the general trend of increasing Convolutional Neural Network (CNN) model sizes, model compression and acceleration techniques have become critical for the deployment of these models on edge devices.

Model Compression

Auptimizer -- an Extensible, Open-Source Framework for Hyperparameter Tuning

1 code implementation6 Nov 2019 Jiayi Liu, Samarth Tripathi, Unmesh Kurup, Mohak Shah

Tuning machine learning models at scale, especially finding the right hyperparameter values, can be difficult and time-consuming.

BIG-bench Machine Learning Hyperparameter Optimization +2

On-Device Machine Learning: An Algorithms and Learning Theory Perspective

no code implementations2 Nov 2019 Sauptik Dhar, Junyao Guo, Jiayi Liu, Samarth Tripathi, Unmesh Kurup, Mohak Shah

However, on-device learning is an expansive field with connections to a large number of related topics in AI and machine learning (including online learning, model adaptation, one/few-shot learning, etc.).

BIG-bench Machine Learning Few-Shot Learning +1

Improving Model Training by Periodic Sampling over Weight Distributions

no code implementations14 May 2019 Samarth Tripathi, Jiayi Liu, Unmesh Kurup, Mohak Shah, Sauptik Dhar

In this paper, we explore techniques centered around periodic sampling of model weights that provide convergence improvements on gradient update methods (vanilla \acs{SGD}, Momentum, Adam) for a variety of vision problems (classification, detection, segmentation).

Make (Nearly) Every Neural Network Better: Generating Neural Network Ensembles by Weight Parameter Resampling

no code implementations2 Jul 2018 Jiayi Liu, Samarth Tripathi, Unmesh Kurup, Mohak Shah

We perform a variety of analysis using the MNIST dataset and validate the approach with a number of DNN models using pre-trained models on the ImageNet dataset.

Effective Building Block Design for Deep Convolutional Neural Networks using Search

no code implementations25 Jan 2018 Jayanta K. Dutta, Jiayi Liu, Unmesh Kurup, Mohak Shah

We apply this technique to generate models for multiple image datasets and show that these models achieve performance comparable to state-of-the-art (and even surpassing the state-of-the-art in one case).

LADDER: A Human-Level Bidding Agent for Large-Scale Real-Time Online Auctions

no code implementations18 Aug 2017 Yu Wang, Jiayi Liu, Yuxiang Liu, Jun Hao, Yang He, Jinghe Hu, Weipeng P. Yan, Mantian Li

We present LADDER, the first deep reinforcement learning agent that can successfully learn control policies for large-scale real-world problems directly from raw inputs composed of high-level semantic information.

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