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This paper proposes a transfer contrast learning method based on model-level data enhancement for cross-domain recommendations. This method first obtains the initial embeddings of the two domains using item-based collaborative filtering, after which it enhances the transformer network with model-level data through contrastive learning to pre-train the source domain data. The pre-trained transformer network parameters are then transferred and fine-tuned before being applied to tasks on the target domain data. The information link from the source domain to the target domain is effectively constructed, and it has been proven to improve the accuracy and effectiveness of the target domain on real datasets.<\/jats:p>","DOI":"10.3233\/idt-240352","type":"journal-article","created":{"date-parts":[[2024,6,18]],"date-time":"2024-06-18T15:19:11Z","timestamp":1718723951000},"page":"717-729","source":"Crossref","is-referenced-by-count":1,"title":["Transfer contrast learning based on model-level data enhancement for cross-domain recommendation"],"prefix":"10.1177","volume":"18","author":[{"given":"Chenyun","family":"Yu","sequence":"first","affiliation":[{"name":"Network Information Center, Liaoning Petrochemical University, Fushun, Liaoning, China"}]},{"given":"Xiwei","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Innovation and Entrepreneurship, Liaoning Petrochemical University, Fushun, Liaoning, 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