Search Results for author: Yaochen Hu

Found 12 papers, 3 papers with code

Path-of-Thoughts: Extracting and Following Paths for Robust Relational Reasoning with Large Language Models

no code implementations23 Dec 2024 Ge Zhang, Mohammad Ali Alomrani, Hongjian Gu, Jiaming Zhou, Yaochen Hu, Bin Wang, Qun Liu, Mark Coates, Yingxue Zhang, Jianye Hao

Large language models (LLMs) possess vast semantic knowledge but often struggle with complex reasoning tasks, particularly in relational reasoning problems such as kinship or spatial reasoning.

Relational Reasoning Spatial Reasoning

Enhancing CTR Prediction in Recommendation Domain with Search Query Representation

no code implementations28 Oct 2024 Yuening Wang, Man Chen, Yaochen Hu, Wei Guo, Yingxue Zhang, Huifeng Guo, Yong liu, Mark Coates

Since users and items are often shared between the search and recommendation domains, there is a valuable opportunity to enhance the recommendation domain by leveraging user preferences extracted from the search domain.

Click-Through Rate Prediction Contrastive Learning +1

Sparse Decomposition of Graph Neural Networks

no code implementations25 Oct 2024 Yaochen Hu, Mai Zeng, Ge Zhang, Pavel Rumiantsev, Liheng Ma, Yingxue Zhang, Mark Coates

Graph Neural Networks (GNN) exhibit superior performance in graph representation learning, but their inference cost can be high, due to an aggregation operation that can require a memory fetch for a very large number of nodes.

Graph Neural Network Graph Representation Learning +2

Enhancing Logical Reasoning in Large Language Models through Graph-based Synthetic Data

1 code implementation19 Sep 2024 Jiaming Zhou, Abbas Ghaddar, Ge Zhang, Liheng Ma, Yaochen Hu, Soumyasundar Pal, Mark Coates, Bin Wang, Yingxue Zhang, Jianye Hao

Despite recent advances in training and prompting strategies for Large Language Models (LLMs), these models continue to face challenges with complex logical reasoning tasks that involve long reasoning chains.

Logical Reasoning Spatial Reasoning

Preference and Concurrence Aware Bayesian Graph Neural Networks for Recommender Systems

no code implementations30 Nov 2023 Hongjian Gu, Yaochen Hu, Yingxue Zhang

Graph-based collaborative filtering methods have prevailing performance for recommender systems since they can capture high-order information between users and items, in which the graphs are constructed from the observed user-item interactions that might miss links or contain spurious positive interactions in industrial scenarios.

Collaborative Filtering Graph Neural Network

Towards Automated Negative Sampling in Implicit Recommendation

no code implementations6 Nov 2023 Fuyuan Lyu, Yaochen Hu, Xing Tang, Yingxue Zhang, Ruiming Tang, Xue Liu

Hence, we propose a hypothesis that the negative sampler should align with the capacity of the recommendation models as well as the statistics of the datasets to achieve optimal performance.

AutoML

Compressed Interaction Graph based Framework for Multi-behavior Recommendation

2 code implementations4 Mar 2023 Wei Guo, Chang Meng, Enming Yuan, ZhiCheng He, Huifeng Guo, Yingxue Zhang, Bo Chen, Yaochen Hu, Ruiming Tang, Xiu Li, Rui Zhang

However, it is challenging to explore multi-behavior data due to the unbalanced data distribution and sparse target behavior, which lead to the inadequate modeling of high-order relations when treating multi-behavior data ''as features'' and gradient conflict in multitask learning when treating multi-behavior data ''as labels''.

Multi-Task Learning

A Survey on User Behavior Modeling in Recommender Systems

no code implementations22 Feb 2023 ZhiCheng He, Weiwen Liu, Wei Guo, Jiarui Qin, Yingxue Zhang, Yaochen Hu, Ruiming Tang

Besides, we elaborate on the industrial practices of UBM methods with the hope of providing insights into the application value of existing UBM solutions.

Recommendation Systems Survey

A Framework for Recommending Accurate and Diverse ItemsUsing Bayesian Graph Convolutional Neural Networks

1 code implementation Proceedings of the 26th ACM SIGKDD International Conference on Knowledge Discovery & Data Mining 2020 Jianing Sun, Wei Guo, Dengcheng Zhang, Yingxue Zhang, Florence Regol, Yaochen Hu, Huifeng Guo, Ruiming Tang, Han Yuan, Xiuqiang He, Mark Coates

Because of the multitude of relationships existing in recommender systems, Graph Neural Networks (GNNs) based approaches have been proposed to better characterize the various relationships between a user and items while modeling a user's preferences.

Recommendation Systems

Learning Privately over Distributed Features: An ADMM Sharing Approach

no code implementations17 Jul 2019 Yaochen Hu, Peng Liu, Linglong Kong, Di Niu

Distributed machine learning has been widely studied in order to handle exploding amount of data.

Stochastic Distributed Optimization for Machine Learning from Decentralized Features

no code implementations16 Dec 2018 Yaochen Hu, Di Niu, Jianming Yang, Shengping Zhou

Distributed machine learning has been widely studied in the literature to scale up machine learning model training in the presence of an ever-increasing amount of data.

BIG-bench Machine Learning Distributed Optimization

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