Media type: E-Article Title: On Single and Multiple Representations in Dense Passage Retrieval Contributor: Macdonald, Craig [VerfasserIn]; Tonellotto, Nicola [VerfasserIn]; Ounis, Iadh [VerfasserIn] imprint: 2021 Published in: Italian Information Retrieval Workshop (11. : 2021 : Bari; Online): IIR 2021: 11th Italian Information Retrieval Workshop 2021 ; 2021 Language: English Origination: Footnote: Access State: Open Access