Tzu-Yu Lu

dblp:358/6362 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2023
0009-0003-3312-0818ORCID · reported

Domains — the database's venue-derived domains; a paper can count in several

Software engineering, systems software and programming languages · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Databases, data mining, and information retrieval
1 paper
Recommender systems · 67% Knowledge graphs · 33%
Artificial intelligence
1 paper
Reinforcement learning · 100%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Recommender systems › interactive recommendation
conversational recommendation
0.712023
Hierarchical Reinforcement Learning for Conversational Recommendation With Knowledge Graph Reasoning and Heterogeneous Questions · IEEE Trans. Serv. Comput. 2023
Knowledge graphs
knowledge graph reasoning
0.712023
Hierarchical Reinforcement Learning for Conversational Recommendation With Knowledge Graph Reasoning and Heterogeneous Questions · IEEE Trans. Serv. Comput. 2023
Recommender systems › interactive recommendation › conversational recommendation
multi-round conversational recommendation
0.712023
Hierarchical Reinforcement Learning for Conversational Recommendation With Knowledge Graph Reasoning and Heterogeneous Questions · IEEE Trans. Serv. Comput. 2023
Machine learning › Reinforcement learning
hierarchical reinforcement learning
0.212023
Hierarchical Reinforcement Learning for Conversational Recommendation With Knowledge Graph Reasoning and Heterogeneous Questions · IEEE Trans. Serv. Comput. 2023

Methods — techniques the papers use, named apart from their topics

knowledge graph reasoning · 1.3hierarchical reinforcement learning · 1.3
YearPublicationVenuePosition
2023 Hierarchical Reinforcement Learning for Conversational Recommendation With Knowledge Graph Reasoning and Heterogeneous Questions
abstract
User interaction history with items is used to infer user preferences in conventional recommendation systems. Among these, conversational recommendation systems (CRSs), which provide effective recommendations based on a framework combining recommendations and conversations with users, have been proposed. However, existing CRS model still have some shortcomings, such as the lack of using dialogue records for recommendations. In this research, a method was proposed to solve multiround conversational recommendations with heterogeneous questions. The model included a hierarchical reinforcement learning framework and introduced methods of effectively incorporating user feedback for online recommender updates. Experiments were conducted on several datasets to verify model effectiveness; the model outperformed the current state-of-the-art method. Finally, the architecture was more realistic than other conversational recommendation scenarios and provided richer explanations.
Yao-Chun Yang, Chiao-Ting Chen, Tzu-Yu Lu, Szu-Hao Huang
IEEE Trans. Serv. Comput.3