Centrala begrepp
Replay buffer selection is crucial in graph continual learning to prevent overfitting and improve model performance.
Sammanfattning
In this paper, the authors investigate the replay buffer in rehearsal-based approaches for graph continual learning (GCL) methods. They propose a GCL model named DSLR, which focuses on diversity enhancement and structure learning to address issues of overfitting and knowledge retention. The study demonstrates the effectiveness and efficiency of DSLR through extensive experimental results. The key highlights include:
- Introduction to the importance of continual learning in efficiently learning from new data.
- Categorization of continual learning approaches into regularization-based, architectural, and rehearsal-based approaches.
- Proposal of DSLR model focusing on coverage-based diversity and graph structure learning.
- Explanation of the coverage-based diversity approach to select replayed nodes.
- Description of the graph structure learning component to connect replayed nodes to informative neighbors.
- Summary of contributions emphasizing the consideration of diversity and the impact of neighbors on model performance.
Statistik
"Extensive experimental results demonstrate the effectiveness and efficiency of DSLR."
"Table 1 shows the homophily ratio of the replayed nodes using MF & CD in Citeseer dataset."
"Figure 2 illustrates forgetting over various homophily ratios of the replayed nodes in Citeseer dataset."
Citat
"We propose a GCL model named DSLR, specifically, we devise a coverage-based diversity (CD) approach to consider both the class representativeness and the diversity within each class of the replayed nodes."
"Extensive experiments show that DSLR outperforms state-of-the-art GCL methods, even with a small replay buffer size."