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cs.IR2020
Topic Propagation in Conversational Search
I. Mele, C. I. Muntean, F. M. Nardini +3
In a conversational context, a user expresses her multi-faceted information need as a sequence of natural-language questions, i.e., utterances. Starting from a given topic, the con…
cs.IR2020
Topical Result Caching in Web Search Engines
Ida Mele, Nicola Tonellotto, Ophir Frieder +1
Caching search results is employed in information retrieval systems to expedite query processing and reduce back-end server workload. Motivated by the observation that queries belo…