Advances in Information Retrieval

This two-volume set LNCS 12656 and 12657 constitutes the refereed proceedings of the 43rd European Conference on IR Research, ECIR 2021, held virtually in March/April 2021, due to the COVID-19 pandemic. The 50 full papers presented together with 11 reproducibility papers, 39 short papers, 15 demonstration papers, 12 CLEF lab descriptions papers, 5 doctoral consortium papers, 5 workshop abstracts, and 8 tutorials abstracts were carefully reviewed and selected from 436 submissions.

The accepted contributions cover the state of the art in IR: deep learning-based information retrieval techniques, use of entities and knowledge graphs, recommender systems, retrieval methods, information extraction, question answering, topic and prediction models, multimedia retrieval, and much more.

Inhalt
Information retrieval.- Document representation.- Interactive information retrieval.- Web search engines.- Evaluation of retrieval results.- Multimedia and multimodal information retrieval.- Query processing.- Document ranking.- Recommendation.- Filtering.- Domain-specific search.- Enterprise search.- Artificial intelligence and machine learning for search and retrieval.- Conversational agents.