With the growing number of available machine learning models and the emergence of model-sharing platforms, model reuse has become a significant approach to harnessing the power of artificial intelligence. One of the key issues to realizing model reuse resides in efficiently and accurately finding the target models that meet user needs from a model repository. However, the existing popular model-sharing platforms (e.g., Hugging Face) mainly support model retrieval based on model name matching and task filtering. If not familiar with the platform or specific models, users may suffer from low retrieval efficiency and a less user-friendly interaction experience. To address these issues, we have developed ModelGalaxy, a versatile model retrieval platform supporting multiple model retrieval methods, including keyword-based search, dataset-based search, and user-task-centric search. Moreover, ModelGalaxy leverages the power of large language models to provide users with easily retrieving and using models. Our source code is available at https://github.com/zwl906711886/ModelGalaxy.

Modeling feature interactions is of crucial significance to high-quality feature engineering on multifiled sparse data. At present, a series of state-of-the-art methods extract cross features in a rather implicit bitwise fashion and lack enough comprehensive and flexible competence of learning sophisticated interactions among different feature fields. In this article, we propose a new broad attentive graph fusion network (BaGFN) to better model high-order feature interactions in a flexible and explicit manner. On the one hand, we design an attentive graph fusion module to strengthen high-order feature representation under graph structure. The graph-based module develops a new bilinear-cross aggregation function to aggregate the graph node information, employs the self-attention mechanism to learn the impact of neighborhood nodes, and updates the high-order representation of features by multihop fusion steps. On the other hand, we further construct a broad attentive cross module to refine high-order feature interactions at a bitwise level. The optimized module designs a new broad attention mechanism to dynamically learn the importance weights of cross features and efficiently conduct the sophisticated high-order feature interactions at the granularity of feature dimensions. The final experimental results demonstrate the effectiveness of our proposed model.