Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pruning the Index Contents for Memory Efficient Open-Domain QA   This work presents a novel pipeline that demonstrates what is achievable with
a combined effort of state-of-the-art approaches. Specifically, it proposes the
novel R2-D2 (Rank twice, reaD twice) pipeline composed of retriever, passage
reranker, extractive reader, generative reader and a simple way to combine
them. Furthermore, previous work often comes with a massive index of external
documents that scales in the order of tens of GiB. This work presents a simple
approach for pruning the contents of a massive index such that the open-domain
QA system altogether with index, OS, and library components fits into 6GiB
docker image while retaining only 8% of original index contents and losing only
3% EM accuracy.

19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th