Update README.md

README.md

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 license: mit
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+This dataset is created by [DeepSim: deep learning code functional similarity](https://dl.acm.org/doi/10.1145/3236024.3236068).
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+I downloaded `googlejam4.tar.gz` from [parasol-aser/deepsim](https://github.com/parasol-aser/deepsim/), fixed encoding of `6/googlejam6.p261.Round1B.java` and `1/googlejam1.p815.MushroomMonster.java`, and re-compressed in `zip`.
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+The `all` split (all 12 problems) is consistent with their paper (I guess...). 
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+The `test` split (problem 5, 6, 7, 8, 12) is used in experiments of [Language Models are Universal Embedders](https://arxiv.org/pdf/2310.08232.pdf).
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+| problem | code num |
+|---------|----------|
+| 1       | 478      |
+| 2       | 88       |
+| 3       | 242      |
+| 4       | 38       |
+| 5       | 2        |
+| 6       | 435      |
+| 7       | 27       |
+| 8       | 245      |
+| 9       | 68       |
+| 10      | 18       |
+| 11      | 20       |
+| 12      | 4        |