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README.md

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+# SPARTA
+Re-Implementation of [SPARTA: Efficient Open-Domain Question Answering via Sparse Transformer Matching Retrieval](https://arxiv.org/abs/2009.13013). It is the re-implementation we used for [BEIR: A Heterogenous Benchmark for Zero-shot Evaluation of Information Retrieval Models](https://arxiv.org/abs/2104.08663).
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+Also have a look at our BEIR repository: https://github.com/UKPLab/beir
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+Have a look at https://github.com/nreimers/beir-sparta for the training and inference code of this SPARTA model