Search Results for author: Dugang Liu

Found 20 papers, 8 papers with code

Augmenting Legal Judgment Prediction with Contrastive Case Relations

1 code implementation COLING 2022 Dugang Liu, Weihao Du, Lei LI, Weike Pan, Zhong Ming

Existing legal judgment prediction methods usually only consider one single case fact description as input, which may not fully utilize the information in the data such as case relations and frequency.

Decoder

Fusion Matters: Learning Fusion in Deep Click-through Rate Prediction Models

1 code implementation24 Nov 2024 Kexin Zhang, Fuyuan Lyu, Xing Tang, Dugang Liu, Chen Ma, Kaize Ding, Xiuqiang He, Xue Liu

To bridge this gap, we introduce OptFusion, a method that automates the learning of fusion, encompassing both the connection learning and the operation selection.

Click-Through Rate Prediction Neural Architecture Search +1

Comprehending Knowledge Graphs with Large Language Models for Recommender Systems

no code implementations16 Oct 2024 Ziqiang Cui, Yunpeng Weng, Xing Tang, Fuyuan Lyu, Dugang Liu, Xiuqiang He, Chen Ma

Furthermore, to utilize the global information of the KG, we construct an item-item graph using these semantic embeddings, which can directly capture higher-order associations between items.

Knowledge-Aware Recommendation Knowledge Graphs +2

End-to-End Cost-Effective Incentive Recommendation under Budget Constraint with Uplift Modeling

no code implementations21 Aug 2024 Zexu Sun, Hao Yang, Dugang Liu, Yunpeng Weng, Xing Tang, Xiuqiang He

(2) An optimality gap between the two stages results in inferior sub-optimal allocation performance due to the loss of the incentive recommendation information for the uplift prediction under the limited budget constraint.

Causal Inference Marketing

OptDist: Learning Optimal Distribution for Customer Lifetime Value Prediction

no code implementations16 Aug 2024 Yunpeng Weng, Xing Tang, Zhenhao Xu, Fuyuan Lyu, Dugang Liu, Zexu Sun, Xiuqiang He

In this paper, we propose a novel optimal distribution selection model OptDist for CLTV prediction, which utilizes an adaptive optimal sub-distribution selection mechanism to improve the accuracy of complex distribution modeling.

Marketing Value prediction

Masked Random Noise for Communication Efficient Federated Learning

1 code implementation6 Aug 2024 Shiwei Li, Yingyi Cheng, Haozhao Wang, Xing Tang, Shijie Xu, Weihong Luo, Yuhua Li, Dugang Liu, Xiuqiang He, Ruixuan Li

For this purpose, we propose Federated Masked Random Noise (FedMRN), a novel framework that enables clients to learn a 1-bit mask for each model parameter and apply masked random noise (i. e., the Hadamard product of random noise and masks) to represent model updates.

Federated Learning

A Practice-Friendly LLM-Enhanced Paradigm with Preference Parsing for Sequential Recommendation

no code implementations1 Jun 2024 Dugang Liu, Shenxian Xian, Xiaolin Lin, Xiaolian Zhang, Hong Zhu, Yuan Fang, Zhen Chen, Zhong Ming

Specifically, in the information reconstruction stage, we design a new user-level SFT task for collaborative information injection with the assistance of a pre-trained SRS model, which is more efficient and compatible with limited text information.

Sequential Recommendation

Touch the Core: Exploring Task Dependence Among Hybrid Targets for Recommendation

1 code implementation26 Mar 2024 Xing Tang, Yang Qiao, Fuyuan Lyu, Dugang Liu, Xiuqiang He

In this paper, we study the MTL problem with hybrid targets for the first time and propose the model named Hybrid Targets Learning Network (HTLNet) to explore task dependence and enhance optimization.

Multi-Task Learning Recommendation Systems

Expected Transaction Value Optimization for Precise Marketing in FinTech Platforms

no code implementations3 Jan 2024 Yunpeng Weng, Xing Tang, Liang Chen, Dugang Liu, Xiuqiang He

In addition to predicting the click-through rate (CTR) or the conversion rate (CVR) as in traditional recommendations, it is essential for FinTech platforms to estimate the customers' purchase amount for each delivered fund and achieve an effective allocation of impressions based on the predicted results to optimize the total expected transaction value (ETV).

Marketing

Towards Hybrid-grained Feature Interaction Selection for Deep Sparse Network

1 code implementation NeurIPS 2023 Fuyuan Lyu, Xing Tang, Dugang Liu, Chen Ma, Weihong Luo, Liang Chen, Xiuqiang He, Xue Liu

In this work, we introduce a hybrid-grained feature interaction selection approach that targets both feature field and feature value for deep sparse networks.

Robustness-enhanced Uplift Modeling with Adversarial Feature Desensitization

no code implementations7 Oct 2023 Zexu Sun, Bowei He, Ming Ma, Jiakai Tang, Yuchen Wang, Chen Ma, Dugang Liu

Specifically, our RUAD can more effectively alleviate the feature sensitivity of the uplift model through two customized modules, including a feature selection module with joint multi-label modeling to identify a key subset from the input features and an adversarial feature desensitization module using adversarial training and soft interpolation operations to enhance the robustness of the model against this selected subset of features.

feature selection Marketing

Large Language Models for Generative Recommendation: A Survey and Visionary Discussions

no code implementations3 Sep 2023 Lei LI, Yongfeng Zhang, Dugang Liu, Li Chen

Large language models (LLM) not only have revolutionized the field of natural language processing (NLP) but also have the potential to reshape many other fields, e. g., recommender systems (RS).

Recommendation Systems Re-Ranking +1

OptMSM: Optimizing Multi-Scenario Modeling for Click-Through Rate Prediction

no code implementations23 Jun 2023 Xing Tang, Yang Qiao, Yuwen Fu, Fuyuan Lyu, Dugang Liu, Xiuqiang He

Existing approaches for multi-scenario CTR prediction generally consist of two main modules: i) a scenario-aware learning module that learns a set of multi-functional representations with scenario-shared and scenario-specific information from input features, and ii) a scenario-specific prediction module that serves each scenario based on these representations.

Click-Through Rate Prediction Disentanglement

Explicit Feature Interaction-aware Uplift Network for Online Marketing

no code implementations1 Jun 2023 Dugang Liu, Xing Tang, Han Gao, Fuyuan Lyu, Xiuqiang He

Our EFIN includes four customized modules: 1) a feature encoding module encodes not only the user and contextual features, but also the treatment features; 2) a self-interaction module aims to accurately model the user's natural response with all but the treatment features; 3) a treatment-aware interaction module accurately models the degree to which a particular treatment motivates a user through interactions between the treatment features and other features, i. e., ITE; and 4) an intervention constraint module is used to balance the ITE distribution of users between the control and treatment groups so that the model would still achieve a accurate uplift ranking on data collected from a non-random intervention marketing scenario.

Marketing

Bounding System-Induced Biases in Recommender Systems with A Randomized Dataset

no code implementations21 Mar 2023 Dugang Liu, Pengxiang Cheng, Zinan Lin, Xiaolian Zhang, Zhenhua Dong, Rui Zhang, Xiuqiang He, Weike Pan, Zhong Ming

To bridge this gap, we study the debiasing problem from a new perspective and propose to directly minimize the upper bound of an ideal objective function, which facilitates a better potential solution to the system-induced biases.

Recommendation Systems

Self-Sampling Training and Evaluation for the Accuracy-Bias Tradeoff in Recommendation

no code implementations7 Feb 2023 Dugang Liu, Yang Qiao, Xing Tang, Liang Chen, Xiuqiang He, Weike Pan, Zhong Ming

Specifically, SSTE uses a self-sampling module to generate some subsets with different degrees of bias from the original training and validation data.

Management

Optimizing Feature Set for Click-Through Rate Prediction

1 code implementation26 Jan 2023 Fuyuan Lyu, Xing Tang, Dugang Liu, Liang Chen, Xiuqiang He, Xue Liu

Because of the large-scale search space, we develop a learning-by-continuation training scheme to learn such gates.

Click-Through Rate Prediction

DIWIFT: Discovering Instance-wise Influential Features for Tabular Data

1 code implementation6 Jul 2022 Dugang Liu, Pengxiang Cheng, Hong Zhu, Xing Tang, Yanyu Chen, Xiaoting Wang, Weike Pan, Zhong Ming, Xiuqiang He

Tabular data is one of the most common data storage formats behind many real-world web applications such as retail, banking, and e-commerce.

feature selection

FLEN: Leveraging Field for Scalable CTR Prediction

7 code implementations12 Nov 2019 Wenqiang Chen, Lizhang Zhan, Yuanlong Ci, Minghua Yang, Chen Lin, Dugang Liu

By suitably exploiting field information, the field-wise bi-interaction pooling captures both inter-field and intra-field feature conjunctions with a small number of model parameters and an acceptable time complexity for industrial applications.

Click-Through Rate Prediction Recommendation Systems

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