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---
layout: page
title: NTCIR Math Information Retrieval
---

[NTCIR](http://research.nii.ac.jp/ntcir/index-en.html) 10, 11 and 12 had tasks concerning
mathematical information retrieval.
These tasks primarily focused on keyword search.
The corpus was based on arXiv/arXMLiv and Wikipedia.
A more detailed description of the NTCIR mathematical information retrieval
tasks and the lessons learnt was published at [https://doi.org/10.1007/978-981-15-5554-1_12](https://doi.org/10.1007/978-981-15-5554-1_12).


### Access and Download
Like for the arXMLiv corpus, access is currently restricted to
[SIGMathLing members](/member/) but everyone is welcome to join (after signing the [SIGMathLing Non-Disclosure-Agreement](/nda/)).

If you are a member, you should have access to the two repositories containing the data:
* [https://gl.kwarc.info/SIGMathLing/ntcir10-math-understanding](https://gl.kwarc.info/SIGMathLing/ntcir10-math-understanding)
    for NTCIR-10
* [https://gl.kwarc.info/SIGMathLing/ntcir-11/](https://gl.kwarc.info/SIGMathLing/ntcir-11/)
    for NTCIR-11 and NTCIR-12 (presumably, you will mostly be interested in the contents of `NTCIR/ntcir-math.nii.ac.jp/download`)

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### Citing this resource
```
@online{SML:ntcir:10-12,
  title = {NTCIR math information retrieval task data},
  url = {https://sigmathling.kwarc.info/resources/ntcir/},
  note = {SIGMathLing -- Special Interest Group on Math Linguistics},
  year = 2021}
```