Scaling Up Query-Focused Summarization to Meet Open-Domain Question Answering

Query-focused summarization (QFS) requires generating a textual summary given a query using a set of relevant documents. However, in practice, such relevant documents are not readily available but should be first retrieved from a document collection. Therefore, we show how to extend this task to make it more realistic. Thereby the task setup also resembles the settings of the open-domain question answering task, where the answer is a summary of the top-retrieved documents. To address this extended task, we combine passage retrieval with text generation to produce the summary of the retrieved passages given the input query. We demonstrate the first evaluation results on the proposed task and show that a few samples are sufficient to fine-tune a large generative model with retrieved passages.