Search Results for author: Peng Jiang

Found 117 papers, 38 papers with code

PA Ph&Tech at SemEval-2022 Task 11: NER Task with Ensemble Embedding from Reinforcement Learning

no code implementations SemEval (NAACL) 2022 Qizhi Lin, Changyu Hou, Xiaopeng Wang, Jun Wang, Yixuan Qiao, Peng Jiang, Xiandi Jiang, Benqi Wang, Qifeng Xiao

From pretrained contextual embedding to document-level embedding, the selection and construction of embedding have drawn more and more attention in the NER domain in recent research.

NER Zero-Shot Learning

BBQRec: Behavior-Bind Quantization for Multi-Modal Sequential Recommendation

no code implementations9 Apr 2025 Kaiyuan Li, Rui Xiang, Yong Bai, Yongxiang Tang, Yanhua Cheng, Xialong Liu, Peng Jiang, Kun Gai

Multi-modal sequential recommendation systems leverage auxiliary signals (e. g., text, images) to alleviate data sparsity in user-item interactions.

Quantization Sequential Recommendation

Learning Cascade Ranking as One Network

no code implementations12 Mar 2025 Yunli Wang, Zhen Zhang, Zhiqiang Wang, Zixuan Yang, Yu Li, Jian Yang, Shiyang Wen, Peng Jiang, Kun Gai

Recent advances such as RankFlow and FS-LTR have introduced interaction-aware training paradigms but still struggle to 1) align training objectives with the goal of the entire cascade ranking (i. e., end-to-end recall) and 2) learn effective collaboration patterns for different stages.

From Principles to Applications: A Comprehensive Survey of Discrete Tokenizers in Generation, Comprehension, Recommendation, and Information Retrieval

no code implementations18 Feb 2025 Jian Jia, Jingtong Gao, Ben Xue, Junhao Wang, Qingpeng Cai, Quan Chen, Xiangyu Zhao, Peng Jiang, Kun Gai

Discrete tokenizers have emerged as indispensable components in modern machine learning systems, particularly within the context of autoregressive modeling and large language models (LLMs).

Information Retrieval multimodal generation +2

Future-Conditioned Recommendations with Multi-Objective Controllable Decision Transformer

no code implementations13 Jan 2025 Chongming Gao, Kexin Huang, Ziang Fei, Jiaju Chen, Jiawei Chen, Jianshan Sun, Shuchang Liu, Qingpeng Cai, Peng Jiang

Our empirical findings emphasize the controllable recommendation strategy's ability to produce item sequences according to different objectives while maintaining performance that is competitive with current recommendation strategies across various objectives.

Recommendation Systems Reinforcement Learning (RL)

Prompt Tuning for Item Cold-start Recommendation

1 code implementation24 Dec 2024 Yuezihan Jiang, Gaode Chen, Wenhan Zhang, Jingchi Wang, Yinjie Jiang, Qi Zhang, Jingjian Lin, Peng Jiang, Kaigui Bian

However, existing methods typically rely on content-based properties or text descriptions for prompting, which we argue may be suboptimal for cold-start recommendations due to 1) semantic gaps with recommender tasks, 2) model bias caused by warm-up items contribute most of the positive feedback to the model, which is the core of the cold-start problem that hinders the recommender quality on cold-start items.

Recommendation Systems

GAS: Generative Auto-bidding with Post-training Search

no code implementations22 Dec 2024 Yewen Li, Shuai Mao, Jingtong Gao, Nan Jiang, Yunjian Xu, Qingpeng Cai, Fei Pan, Peng Jiang, Bo An

We use weak-to-strong search alignment by training small critics for different preferences and an MCTS-inspired search to refine the model's output.

Computational Efficiency Sequential Decision Making

LLM-Powered User Simulator for Recommender System

1 code implementation22 Dec 2024 Zijian Zhang, Shuchang Liu, Ziru Liu, Rui Zhong, Qingpeng Cai, Xiangyu Zhao, Chunxu Zhang, Qidong Liu, Peng Jiang

User simulators can rapidly generate a large volume of timely user behavior data, providing a testing platform for reinforcement learning-based recommender systems, thus accelerating their iteration and optimization.

Recommendation Systems reinforcement-learning +1

XYScanNet: An Interpretable State Space Model for Perceptual Image Deblurring

no code implementations13 Dec 2024 Hanzhou Liu, Chengkai Liu, Jiacong Xu, Peng Jiang, Mi Lu

Deep state-space models (SSMs), like recent Mamba architectures, are emerging as a promising alternative to CNN and Transformer networks.

Deblurring Image Deblurring +2

Text-Video Multi-Grained Integration for Video Moment Montage

no code implementations12 Dec 2024 Zhihui Yin, Ye Ma, Xipeng Cao, Bo wang, Quan Chen, Peng Jiang

The proliferation of online short video platforms has driven a surge in user demand for short video editing.

Sentence Video Editing

Adaptive$^2$: Adaptive Domain Mining for Fine-grained Domain Adaptation Modeling

no code implementations11 Dec 2024 Wenxuan Sun, Zixuan Yang, Yunli Wang, Zhen Zhang, Zhiqiang Wang, Yu Li, Jian Yang, Yiming Yang, Shiyang Wen, Peng Jiang, Kun Gai

To the best of our knowledge, Adaptive$^2$ is the first approach to automatically learn both domain identification and adaptation in online advertising, opening new research directions for this area.

Domain Adaptation

SweetTokenizer: Semantic-Aware Spatial-Temporal Tokenizer for Compact Visual Discretization

no code implementations11 Dec 2024 Zhentao Tan, Ben Xue, Jian Jia, Junhao Wang, Wencai Ye, Shaoyun Shi, MingJie Sun, Wenjin Wu, Quan Chen, Peng Jiang

SweetTokenizer achieves comparable video reconstruction fidelity with only \textbf{25\%} of the tokens used in previous state-of-the-art video tokenizers, and boost video generation results by \textbf{32. 9\%} w. r. t gFVD.

Image Reconstruction Representation Learning +2

ACQ: A Unified Framework for Automated Programmatic Creativity in Online Advertising

no code implementations9 Dec 2024 Ruizhi Wang, Kai Liu, Bingjie Li, Yu Rong, Qingpeng Cai, Fei Pan, Peng Jiang

ACQ comprises two components: a prediction module to estimate the cost of a photo under different numbers of ad creatives, and an allocation module to decide the quota for photos considering their estimated costs in the prediction module.

Multiple-choice Multi-Task Learning

Orthus: Autoregressive Interleaved Image-Text Generation with Modality-Specific Heads

no code implementations28 Nov 2024 Siqi Kou, Jiachun Jin, Chang Liu, Ye Ma, Jian Jia, Quan Chen, Peng Jiang, Zhijie Deng

We introduce Orthus, an autoregressive (AR) transformer that excels in generating images given textual prompts, answering questions based on visual inputs, and even crafting lengthy image-text interleaved contents.

Language Modeling Language Modelling +3

LDACP: Long-Delayed Ad Conversions Prediction Model for Bidding Strategy

no code implementations25 Nov 2024 Peng Cui, Yiming Yang, Fusheng Jin, Siyuan Tang, Yunli Wang, Fukang Yang, Yalong Jia, Qingpeng Cai, Fei Pan, Changcheng Li, Peng Jiang

To alleviate the issue of discontinuity in one-hot hard labels, the Bucket Classification Module with label Smoothing method (BCMS) converts one-hot hard labels into non-normalized soft labels, then fits these soft labels by minimizing classification loss and regression loss.

regression

Enhancing Instruction-Following Capability of Visual-Language Models by Reducing Image Redundancy

no code implementations23 Nov 2024 Te Yang, Jian Jia, Xiangyu Zhu, Weisong Zhao, Bo wang, Yanhua Cheng, Yan Li, Shengyuan Liu, Quan Chen, Peng Jiang, Kun Gai, Zhen Lei

In this paper, we propose Visual-Modality Token Compression (VMTC) and Cross-Modality Attention Inhibition (CMAI) strategies to alleviate this gap between MLLMs and LLMs by inhibiting the influence of irrelevant visual tokens during content generation, increasing the instruction-following ability of the MLLMs while retaining their multimodal understanding capacity.

Instruction Following MME +2

Scaling Laws for Online Advertisement Retrieval

no code implementations20 Nov 2024 Yunli Wang, Zixuan Yang, Zhen Zhang, Zhiqiang Wang, Jian Yang, Shiyang Wen, Peng Jiang, Kun Gai

To the best of our knowledge, this is the first work to study the scaling laws for online advertisement retrieval of real-world systems, showing great potential for scaling law in advertising system optimization.

Retrieval

GPR Full-Waveform Inversion through Adaptive Filtering of Model Parameters and Gradients Using CNN

no code implementations11 Oct 2024 Peng Jiang, Kun Wang, Jiaxing Wang, Zeliang Feng, Shengjie Qiao, Runhuai Deng, Fengkai Zhang

GPR full-waveform inversion optimizes the subsurface property model iteratively to match the entire waveform information.

GPR

Performance Analysis of Local Partial MMSE Precoding Based User-Centric Cell-Free Massive MIMO Systems and Deployment Optimization

no code implementations8 Oct 2024 Peng Jiang, Jiafei Fu, Pengcheng Zhu, Yan Wang, Jiangzhou Wang, Xiaohu You

Cell-free massive multiple-input multiple-output (MIMO) systems, leveraging tight cooperation among wireless access points, exhibit remarkable signal enhancement and interference suppression capabilities, demonstrating significant performance advantages over traditional cellular networks.

D&M: Enriching E-commerce Videos with Sound Effects by Key Moment Detection and SFX Matching

no code implementations23 Aug 2024 Jingyu Liu, Minquan Wang, Ye Ma, Bo wang, Aozhu Chen, Quan Chen, Peng Jiang, Xirong Li

Previous studies about adding SFX to videos perform video to SFX matching at a holistic level, lacking the ability of adding SFX to a specific moment.

Highlight Detection Moment Retrieval

Beam Profiling and Beamforming Modeling for mmWave NextG Networks

no code implementations23 Aug 2024 Efat Samir Fathalla, Sahar Zargarzadeh, Chunsheng Xin, Hongyi Wu, Peng Jiang, Joao F. Santos, Jacek Kibilda, Aloizio Pereira da

The datasets we have obtained from the beam profiling and the machine learning model for beamforming are valuable for a broad set of network design problems, such as network topology optimization, user equipment association, power allocation, and beam scheduling, in complex and dynamic mmWave networks.

Scheduling

DLCRec: A Novel Approach for Managing Diversity in LLM-Based Recommender Systems

1 code implementation22 Aug 2024 Jiaju Chen, Chongming Gao, Shuai Yuan, Shuchang Liu, Qingpeng Cai, Peng Jiang

These sub-tasks are trained independently and inferred sequentially according to user-defined control numbers, ensuring more precise control over diversity.

Data Augmentation Diversity +1

ASR-enhanced Multimodal Representation Learning for Cross-Domain Product Retrieval

no code implementations6 Aug 2024 Ruixiang Zhao, Jian Jia, Yan Li, Xuehan Bai, Quan Chen, Han Li, Peng Jiang, Xirong Li

While Automatic Speech Recognition (ASR) text derived from the short or live-stream videos is readily accessible, how to de-noise the excessively noisy text for multimodal representation learning is mostly untouched.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +3

Spatiotemporal Graph Guided Multi-modal Network for Livestreaming Product Retrieval

1 code implementation23 Jul 2024 Xiaowan Hu, Yiyi Chen, Yan Li, Minquan Wang, Haoqian Wang, Quan Chen, Han Li, Peng Jiang

The LPR task encompasses three primary dilemmas in real-world scenarios: 1) the recognition of intended products from distractor products present in the background; 2) the video-image heterogeneity that the appearance of products showcased in live streams often deviates substantially from standardized product images in stores; 3) there are numerous confusing products with subtle visual nuances in the shop.

Retrieval

Towards Robust Recommendation via Decision Boundary-aware Graph Contrastive Learning

no code implementations14 Jul 2024 Jiakai Tang, Sunhao Dai, Zexu Sun, Xu Chen, Jun Xu, Wenhui Yu, Lantao Hu, Peng Jiang, Han Li

In recent years, graph contrastive learning (GCL) has received increasing attention in recommender systems due to its effectiveness in reducing bias caused by data sparsity.

Contrastive Learning Recommendation Systems

Multi-Epoch learning with Data Augmentation for Deep Click-Through Rate Prediction

no code implementations27 Jun 2024 Zhongxiang Fan, Zhaocheng Liu, Jian Liang, Dongying Kong, Han Li, Peng Jiang, Shuang Li, Kun Gai

MEDA minimizes overfitting by reducing the dependency of the embedding layer on subsequent training data or the Multi-Layer Perceptron (MLP) layers, and achieves data augmentation through training the MLP with varied embedding spaces.

Click-Through Rate Prediction Continual Learning +1

IFA: Interaction Fidelity Attention for Entire Lifelong Behaviour Sequence Modeling

no code implementations14 Jun 2024 Wenhui Yu, Chao Feng, Yanze Zhang, Lantao Hu, Peng Jiang, Han Li

The lifelong user behavior sequence provides abundant information of user preference and gains impressive improvement in the recommendation task, however increases computational consumption significantly.

Recommendation Systems

Modeling User Fatigue for Sequential Recommendation

1 code implementation20 May 2024 Nian Li, Xin Ban, Cheng Ling, Chen Gao, Lantao Hu, Peng Jiang, Kun Gai, Yong Li, Qingmin Liao

In this paper, we propose to model user Fatigue in interest learning for sequential Recommendations (FRec).

Contrastive Learning Sequential Recommendation

A Model-based Multi-Agent Personalized Short-Video Recommender System

no code implementations3 May 2024 Peilun Zhou, Xiaoxiao Xu, Lantao Hu, Han Li, Peng Jiang

Recommender selects and presents top-K items to the user at each online request, and a recommendation session consists of several sequential requests.

Recommendation Systems Reinforcement Learning (RL) +1

M3oE: Multi-Domain Multi-Task Mixture-of Experts Recommendation Framework

1 code implementation29 Apr 2024 Zijian Zhang, Shuchang Liu, Jiaao Yu, Qingpeng Cai, Xiangyu Zhao, Chunxu Zhang, Ziru Liu, Qidong Liu, Hongwei Zhao, Lantao Hu, Peng Jiang, Kun Gai

M3oE integrates multi-domain information, maps knowledge across domains and tasks, and optimizes multiple objectives.

AutoML

RecGPT: Generative Personalized Prompts for Sequential Recommendation via ChatGPT Training Paradigm

no code implementations6 Apr 2024 Yabin Zhang, Wenhui Yu, Erhan Zhang, Xu Chen, Lantao Hu, Peng Jiang, Kun Gai

For the model part, we adopt Generative Pre-training Transformer (GPT) as the sequential recommendation model and design a user modular to capture personalized information.

Natural Language Understanding Sequential Recommendation

Sequential Recommendation for Optimizing Both Immediate Feedback and Long-term Retention

1 code implementation4 Apr 2024 Ziru Liu, Shuchang Liu, Zijian Zhang, Qingpeng Cai, Xiangyu Zhao, Kesen Zhao, Lantao Hu, Peng Jiang, Kun Gai

In the landscape of Recommender System (RS) applications, reinforcement learning (RL) has recently emerged as a powerful tool, primarily due to its proficiency in optimizing long-term rewards.

Contrastive Learning Multi-Task Learning +2

Reflectivity Is All You Need!: Advancing LiDAR Semantic Segmentation

1 code implementation19 Mar 2024 Kasi Viswanath, Peng Jiang, Srikanth Saripalli

Building upon our previous work, this paper explores the advantages of employing calibrated intensity (also referred to as reflectivity) within learning-based LiDAR semantic segmentation frameworks.

All Domain Adaptation +3

3DGS-ReLoc: 3D Gaussian Splatting for Map Representation and Visual ReLocalization

no code implementations17 Mar 2024 Peng Jiang, Gaurav Pandey, Srikanth Saripalli

This paper presents a novel system designed for 3D mapping and visual relocalization using 3D Gaussian Splatting.

3DGS Visual Localization

Future Impact Decomposition in Request-level Recommendations

1 code implementation29 Jan 2024 Xiaobei Wang, Shuchang Liu, Xueliang Wang, Qingpeng Cai, Lantao Hu, Han Li, Peng Jiang, Kun Gai, Guangming Xie

Furthermore, we show that a reward-based future decomposition strategy can better express the item-wise future impact and improve the recommendation accuracy in the long term.

Recommendation Systems

Off-Road LiDAR Intensity Based Semantic Segmentation

1 code implementation2 Jan 2024 Kasi Viswanath, Peng Jiang, Sujit PB, Srikanth Saripalli

LiDAR is used in autonomous driving to provide 3D spatial information and enable accurate perception in off-road environments, aiding in obstacle detection, mapping, and path planning.

Autonomous Driving LIDAR Semantic Segmentation +2

GPT-4V Takes the Wheel: Promises and Challenges for Pedestrian Behavior Prediction

no code implementations24 Nov 2023 Jia Huang, Peng Jiang, Alvika Gautam, Srikanth Saripalli

To our knowledge, this research is the first to conduct both quantitative and qualitative evaluations of VLMs in the context of pedestrian behavior prediction for autonomous driving.

Autonomous Driving Common Sense Reasoning +3

ROSS: Radar Off-road Semantic Segmentation

no code implementations20 Oct 2023 Peng Jiang, Srikanth Saripalli

As the demand for autonomous navigation in off-road environments increases, the need for effective solutions to understand these surroundings becomes essential.

Autonomous Navigation Segmentation +1

AURO: Reinforcement Learning for Adaptive User Retention Optimization in Recommender Systems

no code implementations6 Oct 2023 Zhenghai Xue, Qingpeng Cai, Bin Yang, Lantao Hu, Peng Jiang, Kun Gai, Bo An

As the policy performance of RL is sensitive to environment drifts, the loss function enables the state abstraction to be reflective of environment changes and notify the recommendation policy to adapt accordingly.

Navigate Reinforcement Learning (RL) +1

KuaiSim: A Comprehensive Simulator for Recommender Systems

1 code implementation NeurIPS 2023 Kesen Zhao, Shuchang Liu, Qingpeng Cai, Xiangyu Zhao, Ziru Liu, Dong Zheng, Peng Jiang, Kun Gai

For each task, KuaiSim also provides evaluation protocols and baseline recommendation algorithms that further serve as benchmarks for future research.

Reinforcement Learning (RL) Sequential Recommendation

Discrete Conditional Diffusion for Reranking in Recommendation

no code implementations14 Aug 2023 Xiao Lin, Xiaokai Chen, Chenyang Wang, Hantao Shu, Linfeng Song, Biao Li, Peng Jiang

To overcome these challenges, we propose a novel Discrete Conditional Diffusion Reranking (DCDR) framework for recommendation.

Recommendation Systems

A Large Language Model Enhanced Conversational Recommender System

no code implementations11 Aug 2023 Yue Feng, Shuchang Liu, Zhenghai Xue, Qingpeng Cai, Lantao Hu, Peng Jiang, Kun Gai, Fei Sun

For response generation, we utilize the generation ability of LLM as a language interface to better interact with users.

Language Modeling Language Modelling +4

Measuring Item Global Residual Value for Fair Recommendation

1 code implementation17 Jul 2023 Jiayin Wang, Weizhi Ma, Chumeng Jiang, Min Zhang, Yuan Zhang, Biao Li, Peng Jiang

In this paper, we call for a shift of attention from modeling user preferences to developing fair exposure mechanisms for items.

Recommendation Systems

Generative Flow Network for Listwise Recommendation

1 code implementation4 Jun 2023 Shuchang Liu, Qingpeng Cai, Zhankui He, Bowen Sun, Julian McAuley, Dong Zheng, Peng Jiang, Kun Gai

In this work, we aim to learn a policy that can generate sufficiently diverse item lists for users while maintaining high recommendation quality.

Diversity Recommendation Systems

Improving Extrinsics between RADAR and LIDAR using Learning

no code implementations17 May 2023 Peng Jiang, Srikanth Saripalli

This paper presents a novel solution for 3D RADAR-LIDAR calibration in autonomous systems.

Autonomous Driving Sensor Fusion

An End-to-End Framework for Marketing Effectiveness Optimization under Budget Constraint

no code implementations9 Feb 2023 Ziang Yan, Shusen Wang, Guorui Zhou, Jingjian Lin, Peng Jiang

Recent advances in this field often address the budget allocation problem using a two-stage paradigm: the first stage estimates the individual-level treatment effects using causal inference algorithms, and the second stage invokes integer programming techniques to find the optimal budget allocation solution.

Causal Inference Marketing

Exploration and Regularization of the Latent Action Space in Recommendation

1 code implementation7 Feb 2023 Shuchang Liu, Qingpeng Cai, Bowen Sun, Yuhao Wang, Ji Jiang, Dong Zheng, Kun Gai, Peng Jiang, Xiangyu Zhao, Yongfeng Zhang

To overcome this challenge, we propose a hyper-actor and critic learning framework where the policy decomposes the item list generation process into a hyper-action inference step and an effect-action selection step.

Recommendation Systems

Multi-Task Recommendations with Reinforcement Learning

1 code implementation7 Feb 2023 Ziru Liu, Jiejie Tian, Qingpeng Cai, Xiangyu Zhao, Jingtong Gao, Shuchang Liu, Dayou Chen, Tonghao He, Dong Zheng, Peng Jiang, Kun Gai

To be specific, the RMTL structure can address the two aforementioned issues by (i) constructing an MTL environment from session-wise interactions and (ii) training multi-task actor-critic network structure, which is compatible with most existing MTL-based recommendation models, and (iii) optimizing and fine-tuning the MTL loss function using the weights generated by critic networks.

Multi-Task Learning Recommendation Systems +3

Disentangled Causal Embedding With Contrastive Learning For Recommender System

1 code implementation7 Feb 2023 Weiqi Zhao, Dian Tang, Xin Chen, Dawei Lv, Daoli Ou, Biao Li, Peng Jiang, Kun Gai

Most previous studies neglect user's conformity and entangle interest with it, which may cause the recommender systems fail to provide satisfying results.

Contrastive Learning Recommendation Systems

Two-Stage Constrained Actor-Critic for Short Video Recommendation

1 code implementation3 Feb 2023 Qingpeng Cai, Zhenghai Xue, Chi Zhang, Wanqi Xue, Shuchang Liu, Ruohan Zhan, Xueliang Wang, Tianyou Zuo, Wentao Xie, Dong Zheng, Peng Jiang, Kun Gai

One the one hand, the platforms aims at optimizing the users' cumulative watch time (main goal) in long term, which can be effectively optimized by Reinforcement Learning.

Recommendation Systems reinforcement-learning +2

Reinforcing User Retention in a Billion Scale Short Video Recommender System

no code implementations3 Feb 2023 Qingpeng Cai, Shuchang Liu, Xueliang Wang, Tianyou Zuo, Wentao Xie, Bin Yang, Dong Zheng, Peng Jiang, Kun Gai

In this paper, we choose reinforcement learning methods to optimize the retention as they are designed to maximize the long-term performance.

Recommendation Systems reinforcement-learning +2

PrefRec: Recommender Systems with Human Preferences for Reinforcing Long-term User Engagement

1 code implementation6 Dec 2022 Wanqi Xue, Qingpeng Cai, Zhenghai Xue, Shuo Sun, Shuchang Liu, Dong Zheng, Peng Jiang, Kun Gai, Bo An

Though promising, the application of RL heavily relies on well-designed rewards, but designing rewards related to long-term user engagement is quite difficult.

Recommendation Systems Reinforcement Learning (RL)

Exposing and Exploiting Fine-Grained Block Structures for Fast and Accurate Sparse Training

1 code implementation NIPS 2022 Peng Jiang, Lihan Hu, Shihui Song

At higher sparsity, our algorithm can still match the accuracy of nonstructured sparse training in most cases, while reducing the training time by up to 5x due to the fine-grained block structures in the models.

Deeply Supervised Layer Selective Attention Network: Towards Label-Efficient Learning for Medical Image Classification

no code implementations28 Sep 2022 Peng Jiang, Juan Liu, Lang Wang, Zhihui Ynag, Hongyu Dong, Jing Feng

Labeling medical images depends on professional knowledge, making it difficult to acquire large amount of annotated medical images with high quality in a short time.

feature selection Image Classification +1

Real-time Short Video Recommendation on Mobile Devices

no code implementations20 Aug 2022 Xudong Gong, Qinlin Feng, Yuan Zhang, Jiangling Qin, Weijie Ding, Biao Li, Peng Jiang, Kun Gai

However, as users continue to watch videos and feedback, the changing context leads the ranking of the server-side recommendation system inaccurate.

Recommendation Systems Re-Ranking

The Neural-Prediction based Acceleration Algorithm of Column Generation for Graph-Based Set Covering Problems

no code implementations4 Jul 2022 Haofeng Yuan, Peng Jiang, Shiji Song

In this paper, we propose an improved column generation algorithm with neural prediction (CG-P) for solving graph-based set covering problems.

Combinatorial Optimization Graph Neural Network +1

Contrastive Learning of Features between Images and LiDAR

no code implementations24 Jun 2022 Peng Jiang, Srikanth Saripalli

Moreover, we conduct experiments on a real-world dataset to show the effectiveness of our loss function and network structure.

Contrastive Learning

Deconfounding Duration Bias in Watch-time Prediction for Video Recommendation

no code implementations13 Jun 2022 Ruohan Zhan, Changhua Pei, Qiang Su, Jianfeng Wen, Xueliang Wang, Guanyu Mu, Dong Zheng, Peng Jiang

We employ a causal graph illuminating that duration is a confounding factor that concurrently affects video exposure and watch-time prediction -- the first effect on video causes the bias issue and should be eliminated, while the second effect on watch time originates from video intrinsic characteristics and should be preserved.

Prediction

Feature-aware Diversified Re-ranking with Disentangled Representations for Relevant Recommendation

no code implementations10 Jun 2022 Zihan Lin, Hui Wang, Jingshu Mao, Wayne Xin Zhao, Cheng Wang, Peng Jiang, Ji-Rong Wen

Relevant recommendation is a special recommendation scenario which provides relevant items when users express interests on one target item (e. g., click, like and purchase).

Disentanglement Diversity +1

ResAct: Reinforcing Long-term Engagement in Sequential Recommendation with Residual Actor

1 code implementation1 Jun 2022 Wanqi Xue, Qingpeng Cai, Ruohan Zhan, Dong Zheng, Peng Jiang, Kun Gai, Bo An

Meanwhile, reinforcement learning (RL) is widely regarded as a promising framework for optimizing long-term engagement in sequential recommendation.

Reinforcement Learning (RL) Sequential Recommendation

Constrained Reinforcement Learning for Short Video Recommendation

no code implementations26 May 2022 Qingpeng Cai, Ruohan Zhan, Chi Zhang, Jie Zheng, Guangwei Ding, Pinghua Gong, Dong Zheng, Peng Jiang

In this paper, we formulate the problem of short video recommendation as a constrained Markov Decision Process (MDP), where platforms want to optimize the main goal of user watch time in long term, with the constraint of accommodating the auxiliary responses of user interactions such as sharing/downloading videos.

Recommendation Systems reinforcement-learning +2

A SSIM Guided cGAN Architecture For Clinically Driven Generative Image Synthesis of Multiplexed Spatial Proteomics Channels

no code implementations20 May 2022 Jillur Rahman Saurav, Mohammad Sadegh Nasr, Paul Koomey, Michael Robben, Manfred Huber, Jon Weidanz, Bríd Ryan, Eytan Ruppin, Peng Jiang, Jacob M. Luber

We validate these claims by generating a new experimental spatial proteomics data set from human lung adenocarcinoma tissue sections and show that a model trained on HuBMAP can accurately synthesize channels from our new data set.

Ethics Generative Adversarial Network +2

CIRS: Bursting Filter Bubbles by Counterfactual Interactive Recommender System

1 code implementation4 Apr 2022 Chongming Gao, Shiqi Wang, Shijun Li, Jiawei Chen, Xiangnan He, Wenqiang Lei, Biao Li, Yuan Zhang, Peng Jiang

The basic idea is to first learn a causal user model on historical data to capture the overexposure effect of items on user satisfaction.

Causal Inference counterfactual +2

Deep Learning based Intelligent Coin-tap Test for Defect Recognition

1 code implementation20 Mar 2022 Hongyu Li, Peng Jiang, Tiejun Wang

This paper further develops transfer learning strategies for this issue, that is, to transfer the model trained on data of one scenario to another.

Deep Learning Domain Adaptation +2

Local neural operator for solving transient partial differential equations on varied domains

1 code implementation11 Mar 2022 Hongyu Li, Ximeng Ye, Peng Jiang, Guoliang Qin, Tiejun Wang

For demonstration, LNO learns Navier-Stokes equations from randomly generated data samples, and then the pre-trained LNO is used as an explicit numerical time-marching scheme to solve the flow of fluid on unseen domains, e. g., the flow in a lid-driven cavity and the flow across the cascade of airfoils.

KuaiRec: A Fully-observed Dataset and Insights for Evaluating Recommender Systems

3 code implementations22 Feb 2022 Chongming Gao, Shijun Li, Wenqiang Lei, Jiawei Chen, Biao Li, Peng Jiang, Xiangnan He, Jiaxin Mao, Tat-Seng Chua

The progress of recommender systems is hampered mainly by evaluation as it requires real-time interactions between humans and systems, which is too laborious and expensive.

Conversational Recommendation Recommendation Systems +1

Double-Barreled Question Detection at Momentive

no code implementations12 Feb 2022 Peng Jiang, Krishna Sumanth Muppalla, Qing Wei, Chidambara Natarajan Gopal, Chun Wang

We concluded that the word2vec subword embedding with maximum pooling is the optimal word embedding representation in terms of precision and running time in the offline experiments using the survey data at Momentive.

Active Learning BIG-bench Machine Learning +1

LBCF: A Large-Scale Budget-Constrained Causal Forest Algorithm

1 code implementation29 Jan 2022 Meng Ai, Biao Li, Heyang Gong, Qingwei Yu, Shengjie Xue, Yuan Zhang, Yunzhou Zhang, Peng Jiang

The proposed approach is currently serving over hundreds of millions of users on the platform and achieves one of the most tremendous improvements over these months.

Distributed Computing Marketing

C2-CRS: Coarse-to-Fine Contrastive Learning for Conversational Recommender System

1 code implementation4 Jan 2022 Yuanhang Zhou, Kun Zhou, Wayne Xin Zhao, Cheng Wang, Peng Jiang, He Hu

To implement this framework, we design both coarse-grained and fine-grained procedures for modeling user preference, where the former focuses on more general, coarse-grained semantic fusion and the latter focuses on more specific, fine-grained semantic fusion.

Contrastive Learning Recommendation Systems +2

SpSC: A Fast and Provable Algorithm for Sampling-Based GNN Training

no code implementations29 Sep 2021 Shihui Song, Peng Jiang

However, we find that SCO algorithms are impractical for training GNNs on large graphs because they need to store the moving averages of the aggregated features of all nodes in the graph.

SemCal: Semantic LiDAR-Camera Calibration using Neural MutualInformation Estimator

no code implementations21 Sep 2021 Peng Jiang, Philip Osteen, Srikanth Saripalli

This paper proposes SemCal: an automatic, targetless, extrinsic calibration algorithm for a LiDAR and camera system using semantic information.

Camera Calibration Image Registration

PASTO: Strategic Parameter Optimization in Recommendation Systems -- Probabilistic is Better than Deterministic

no code implementations20 Aug 2021 Weicong Ding, Hanlin Tang, Jingshuo Feng, Lei Yuan, Sen yang, Guangxu Yang, Jie Zheng, Jing Wang, Qiang Su, Dong Zheng, Xuezhong Qiu, Yongqi Liu, Yuxuan Chen, Yang Liu, Chao Song, Dongying Kong, Kai Ren, Peng Jiang, Qiao Lian, Ji Liu

In this setting with multiple and constrained goals, this paper discovers that a probabilistic strategic parameter regime can achieve better value compared to the standard regime of finding a single deterministic parameter.

Recommendation Systems

Calibrating LiDAR and Camera using Semantic Mutual information

no code implementations24 Apr 2021 Peng Jiang, Philip Osteen, Srikanth Saripalli

We propose an algorithm for automatic, targetless, extrinsic calibration of a LiDAR and camera system using semantic information.

Image Registration

OFFSEG: A Semantic Segmentation Framework For Off-Road Driving

1 code implementation23 Mar 2021 Kasi Viswanath, Kartikeya Singh, Peng Jiang, Sujit P. B., Srikanth Saripalli

Off-road image semantic segmentation is challenging due to the presence of uneven terrains, unstructured class boundaries, irregular features and strong textures.

Scene Understanding Segmentation +1

Extragalactic HI 21-cm absorption line observations with the Five-hundred-meter Aperture Spherical radio Telescope

no code implementations11 Mar 2021 Bo Zhang, Ming Zhu, Zhong-Zu Wu, Qing-Zheng Yu, Peng Jiang, You-Ling Yue, Meng-Lin Huang, Qiao-Li Hao

Our observations successfully confirmed the existence of HI absorption lines in all these systems, including two sources that were marginally detected by ALFALFA.

Astrophysics of Galaxies

Graph Attention Collaborative Similarity Embedding for Recommender System

no code implementations5 Feb 2021 Jinbo Song, Chao Chang, Fei Sun, Zhenyang Chen, Guoyong Hu, Peng Jiang

We present Graph Attention Collaborative Similarity Embedding (GACSE), a new recommendation framework that exploits collaborative information in the user-item bipartite graph for representation learning.

Collaborative Filtering Graph Attention +2

Efficient Mining of Frequent Subgraphs with Two-Vertex Exploration

no code implementations19 Jan 2021 Peng Jiang, Rujia Wang, Bo Wu

Frequent Subgraph Mining (FSM) is the key task in many graph mining and machine learning applications.

Graph Mining Databases Performance

Communication-Efficient Sampling for Distributed Training of Graph Convolutional Networks

no code implementations19 Jan 2021 Peng Jiang, Masuma Akter Rumi

However, we found that the existing neighbor sampling methods do not work well in a distributed setting.

Node Classification

RELLIS-3D Dataset: Data, Benchmarks and Analysis

3 code implementations17 Nov 2020 Peng Jiang, Philip Osteen, Maggie Wigness, Srikanth Saripalli

The data was collected on the Rellis Campus of Texas A\&M University and presents challenges to existing algorithms related to class imbalance and environmental topography.

3D Semantic Segmentation Autonomous Navigation +2

Scribble-Supervised Semantic Segmentation by Random Walk on Neural Representation and Self-Supervision on Neural Eigenspace

no code implementations11 Nov 2020 Zhiyi Pan, Peng Jiang, Changhe Tu

Moreover, given the probabilistic transition matrix, we apply the self-supervision on its eigenspace for consistency in the image's main parts.

Semantic Segmentation

NGAT4Rec: Neighbor-Aware Graph Attention Network For Recommendation

no code implementations23 Oct 2020 Jinbo Song, Chao Chang, Fei Sun, Xinbo Song, Peng Jiang

To modeling the implicit correlations of neighbors in graph embedding aggregating, we propose a Neighbor-Aware Graph Attention Network for recommendation task, termed NGAT4Rec.

Collaborative Filtering Graph Attention +2

Adaptive Periodic Averaging: A Practical Approach to Reducing Communication in Distributed Learning

no code implementations13 Jul 2020 Peng Jiang, Gagan Agrawal

Compared with full-communication SGD, our ADPSGD achieves 1:14x to 1:27x speedups with a 100Gbps connection among computing nodes, and the speedups increase to 1:46x ~ 1:95x with a 10Gbps connection.

Image Classification Quantization

Seamlessly Unifying Attributes and Items: Conversational Recommendation for Cold-Start Users

1 code implementation23 May 2020 Shijun Li, Wenqiang Lei, Qingyun Wu, Xiangnan He, Peng Jiang, Tat-Seng Chua

In this work, we consider the conversational recommendation for cold-start users, where a system can both ask the attributes from and recommend items to a user interactively.

Collaborative Filtering Conversational Recommendation +1

Defect segmentation: Mapping tunnel lining internal defects with ground penetrating radar data using a convolutional neural network

no code implementations29 Mar 2020 Senlin Yang, Zhengfang Wang, Jing Wang, Anthony G. Cohn, Jia-Qi Zhang, Peng Jiang, Qingmei Sui

This research proposes a Ground Penetrating Radar (GPR) data processing method for non-destructive detection of tunnel lining internal defects, called defect segmentation.

GPR

LiDARNet: A Boundary-Aware Domain Adaptation Model for Point Cloud Semantic Segmentation

no code implementations2 Mar 2020 Peng Jiang, Srikanth Saripalli

We present a boundary-aware domain adaptation model for LiDAR scan full-scene semantic segmentation (LiDARNet).

Diversity Domain Adaptation +2

GPRInvNet: Deep Learning-Based Ground Penetrating Radar Data Inversion for Tunnel Lining

no code implementations12 Dec 2019 Bin Liu, Yuxiao Ren, Hanchi Liu, Hui Xu, Zhengfang Wang, Anthony G. Cohn, Peng Jiang

The results have demonstrated that the GPRInvNet is capable of effectively reconstructing complex tunnel lining defects with clear boundaries.

GPR Time Series Analysis

Compositional Network Embedding

no code implementations17 Apr 2019 Tianshu Lyu, Fei Sun, Peng Jiang, Wenwu Ou, Yan Zhang

Node ID is not generalizable and, thus, the existing methods have to pay great effort in cold-start problem.

Attribute Link Prediction +2

Personalized Re-ranking for Recommendation

1 code implementation15 Apr 2019 Changhua Pei, Yi Zhang, Yongfeng Zhang, Fei Sun, Xiao Lin, Hanxiao Sun, Jian Wu, Peng Jiang, Wenwu Ou

Ranking is a core task in recommender systems, which aims at providing an ordered list of items to users.

Recommendation Systems Re-Ranking

BERT4Rec: Sequential Recommendation with Bidirectional Encoder Representations from Transformer

8 code implementations14 Apr 2019 Fei Sun, Jun Liu, Jian Wu, Changhua Pei, Xiao Lin, Wenwu Ou, Peng Jiang

To address this problem, we train the bidirectional model using the Cloze task, predicting the masked items in the sequence by jointly conditioning on their left and right context.

Ranked #3 on Recommendation Systems on MovieLens 1M (HR@10 (full corpus) metric)

Sequential Recommendation

Deep Learning Inversion of Electrical Resistivity Data

no code implementations10 Apr 2019 Bin Liu, Qian Guo, Shucai Li, Benchao Liu, Yuxiao Ren, Yonghao Pang, Xu Guo, Lanbo Liu, Peng Jiang

According to the comprehensive qualitative analysis and quantitative comparison, ERSInvNet with tier feature map, smooth constraints, and depth weighting function together achieve the best performance.

Deep Learning Model Selection

Value-aware Recommendation based on Reinforced Profit Maximization in E-commerce Systems

no code implementations3 Feb 2019 Changhua Pei, Xinru Yang, Qing Cui, Xiao Lin, Fei Sun, Peng Jiang, Wenwu Ou, Yongfeng Zhang

Existing recommendation algorithms mostly focus on optimizing traditional recommendation measures, such as the accuracy of rating prediction in terms of RMSE or the quality of top-$k$ recommendation lists in terms of precision, recall, MAP, etc.

Recommendation Systems reinforcement-learning +2

Deep-Learning Inversion of Seismic Data

no code implementations23 Jan 2019 Shucai Li, Bin Liu, Yuxiao Ren, Yangkang Chen, Senlin Yang, Yunhai Wang, Peng Jiang

We propose a new method to tackle the mapping challenge from time-series data to spatial image in the field of seismic exploration, i. e., reconstructing the velocity model directly from seismic data by deep neural networks (DNNs).

Deep Learning Seismic Inversion +1

A Linear Speedup Analysis of Distributed Deep Learning with Sparse and Quantized Communication

no code implementations NeurIPS 2018 Peng Jiang, Gagan Agrawal

The large communication overhead has imposed a bottleneck on the performance of distributed Stochastic Gradient Descent (SGD) for training deep neural networks.

Quantization

Super Diffusion for Salient Object Detection

no code implementations22 Nov 2018 Peng Jiang, Zhiyi Pan, Nuno Vasconcelos, Baoquan Chen, Jingliang Peng

Following this analysis, we propose super diffusion, a novel inclusive learning-based framework for salient object detection, which makes the optimum and robust performance by integrating a large pool of feature spaces, scales and even features originally computed for non-diffusion-based salient object detection.

Clustering Object +3

Multi-Source Pointer Network for Product Title Summarization

no code implementations21 Aug 2018 Fei Sun, Peng Jiang, Hanxiao Sun, Changhua Pei, Wenwu Ou, Xiaobo Wang

For the second constraint, we restore the key information by copying words from the knowledge encoder with the help of the soft gating mechanism.

Sentence Sentence Summarization

DiDA: Disentangled Synthesis for Domain Adaptation

no code implementations21 May 2018 Jinming Cao, Oren Katzir, Peng Jiang, Dani Lischinski, Danny Cohen-Or, Changhe Tu, Yangyan Li

The key idea is that by learning to separately extract both the common and the domain-specific features, one can synthesize more target domain data with supervision, thereby boosting the domain adaptation performance.

Disentanglement Unsupervised Domain Adaptation

DifNet: Semantic Segmentation by Diffusion Networks

no code implementations NeurIPS 2018 Peng Jiang, Fanglin Gu, Yunhai Wang, Changhe Tu, Baoquan Chen

Deep Neural Networks (DNNs) have recently shown state of the art performance on semantic segmentation tasks, however, they still suffer from problems of poor boundary localization and spatial fragmented predictions.

Segmentation Semantic Segmentation

Generic Promotion of Diffusion-Based Salient Object Detection

no code implementations ICCV 2015 Peng Jiang, Nuno Vasconcelos, Jingliang Peng

In this work, we propose a generic scheme to promote any diffusion-based salient object detection algorithm by original ways to re-synthesize the diffusion matrix and construct the seed vector.

Clustering Object +3

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