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| <h1>📝 Vietnamese NLP – POS Tagging Benchmarks & Resources</h1> |
| <div class="section"> |
| <h2>1. VLSP 2013 POS Tagging</h2> |
| <div class="note"> |
| <span class="icon">📊</span> |
| <b>Dataset:</b> 27,000+ sentences for training, 870 dev, 2,120 test (from VLSP 2013 Shared Task) |
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| <table> |
| <tr> |
| <th>Model</th> |
| <th>Accuracy</th> |
| <th>Method / Reference</th> |
| <th>Code</th> |
| </tr> |
| <tr> |
| <td>PhoBERT-large</td> |
| <td>96.8</td> |
| <td><a href="https://arxiv.org/abs/2003.00744">Nguyen et al. ArXiv'20</a></td> |
| <td><a href="https://github.com/VinAIResearch/PhoBERT">Official</a></td> |
| </tr> |
| <tr> |
| <td>vELECTRA</td> |
| <td>96.77</td> |
| <td><a href="https://arxiv.org/abs/2006.15994">Bui et al. ArXiv'20</a></td> |
| <td><a href="https://github.com/fpt-corp/viBERT">Official</a></td> |
| </tr> |
| <tr> |
| <td>PhoBERT-base</td> |
| <td>96.7</td> |
| <td><a href="https://arxiv.org/abs/2003.00744">Nguyen et al. ArXiv'20</a></td> |
| <td><a href="https://github.com/VinAIResearch/PhoBERT">Official</a></td> |
| </tr> |
| <tr> |
| <td>VnMarMoT</td> |
| <td>95.88</td> |
| <td><a href="http://aclweb.org/anthology/N18-5012">Nguyen et al. NAACL'18</a></td> |
| <td><a href="https://github.com/vncorenlp/VnCoreNLP">Official</a></td> |
| </tr> |
| <tr> |
| <td>BiLSTM-CRFs + CNN-char</td> |
| <td>95.40</td> |
| <td><a href="http://aclweb.org/anthology/N18-5012">Ma et al. ACL'16</a></td> |
| <td><a href="https://github.com/UKPLab/emnlp2017-bilstm-cnn-crf/">Link</a></td> |
| </tr> |
| <tr> |
| <td>BiLSTM-CRF + LSTM-char</td> |
| <td>95.31</td> |
| <td><a href="http://www.aclweb.org/anthology/N16-1030">Lample et al. NAACL'16</a></td> |
| <td><a href="https://github.com/UKPLab/emnlp2017-bilstm-cnn-crf/">Link</a></td> |
| </tr> |
| <tr> |
| <td>BiLSTM-CRF</td> |
| <td>95.31</td> |
| <td><a href="https://arxiv.org/abs/1508.01991">Huang et al. ArXiv'15</a></td> |
| <td><a href="https://github.com/UKPLab/emnlp2017-bilstm-cnn-crf/">Link</a></td> |
| </tr> |
| <tr> |
| <td>RDRPOSTagger</td> |
| <td>95.11</td> |
| <td><a href="https://www.researchgate.net/publication/279916333_RDRPOSTagger_A_Ripple_Down_Rules-based_Part-Of-Speech_Tagger">Nguyen et al. EACL'14</a></td> |
| <td><a href="https://github.com/datquocnguyen/rdrpostagger">Official</a></td> |
| </tr> |
| <tr> |
| <td>JointWPD</td> |
| <td>94.03</td> |
| <td><a href="https://arxiv.org/pdf/1812.11459.pdf">Nguyen et al. '18</a></td> |
| <td></td> |
| </tr> |
| </table> |
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|
| <div class="section"> |
| <h2>2. VietTreeBank</h2> |
| <div class="note"> |
| <span class="icon">📁</span> |
| <b>Paper:</b> <a href="https://hal.inria.fr/inria-00421103v2/document">VietTreeBank Paper</a> <br> |
| <b>Dataset:</b> train: 7,268 | dev: 1,038 | test: 2,077 sentences |
| </div> |
| <table> |
| <tr> |
| <th>Model</th> |
| <th>Accuracy</th> |
| <th>Method</th> |
| <th>Code</th> |
| <th>Note</th> |
| </tr> |
| <tr> |
| <td>BiLSTM-CRFs</td> |
| <td>93.52</td> |
| <td><a href="https://arxiv.org/pdf/1811.03754.pdf">Nguyen et al. '18</a></td> |
| <td><a href="https://github.com/duongna21/VNsequencelabeling">Official</a></td> |
| <td>10-fold CV</td> |
| </tr> |
| <tr> |
| <td>VNTagger</td> |
| <td>93.40</td> |
| <td><a href="https://hal.inria.fr/inria-00526139/document">Le et al. TALN'10</a></td> |
| <td><a href="http://mim.hus.vnu.edu.vn/dsl/tools/tagger">Official</a></td> |
| <td>10-fold CV</td> |
| </tr> |
| <tr> |
| <td>RDRPOSTagger</td> |
| <td>91.96</td> |
| <td><a href="http://aclweb.org/anthology/I17-3010">Pham et al. IJCNLP'17</a></td> |
| <td><a href="https://github.com/datquocnguyen/RDRPOSTagger">Official</a></td> |
| <td>5-fold CV</td> |
| </tr> |
| <tr> |
| <td>NNVLP</td> |
| <td>91.92</td> |
| <td><a href="http://aclweb.org/anthology/I17-3010">Pham et al. IJCNLP'17</a></td> |
| <td><a href="https://github.com/pth1993/NNVLP">Official</a></td> |
| <td>5-fold CV</td> |
| </tr> |
| <tr> |
| <td>vTools</td> |
| <td>90.73</td> |
| <td><a href="https://drive.google.com/file/d/1V06YfENrguQk2SRJFbpwWzapxpgPPaPS/view?usp=sharing">Tran et al. VLSP'13</a></td> |
| <td><a href="https://github.com/lupanh/vTools">Official</a></td> |
| <td></td> |
| </tr> |
| <tr> |
| <td>Vitk</td> |
| <td>88.41</td> |
| <td></td> |
| <td><a href="https://github.com/phuonglh/vn.vitk">Official</a></td> |
| <td></td> |
| </tr> |
| </table> |
| </div> |
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| <div class="section"> |
| <h2>3. Social Media POS Tagging</h2> |
| <ul class="papers-list"> |
| <li>📄 <a href="https://www.researchgate.net/publication/309176280_Vietnamese_POS_Tagging_for_Social_Media_Text">Vietnamese POS Tagging for Social Media Text - Ngo et al. 2016</a></li> |
| <li>📄 <a href="https://www.researchgate.net/publication/335361630_A_POS_Tagging_Model_for_Vietnamese_Social_Media_Text_Using_BiLSTM-CRF_with_Rich_Features">A POS Tagging Model for Vietnamese Social Media Text Using BiLSTM-CRF with Rich Features - Ngo et al. 2019</a></li> |
| <li>📄 <a href="https://www.researchgate.net/publication/321940724_An_Empirical_Study_on_POS_Tagging_for_Vietnamese_Social_Media_Text">An Empirical Study on POS Tagging for Vietnamese Social Media Text - Ngo et al. 2017</a></li> |
| </ul> |
| </div> |
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| <div class="section"> |
| <h2>4. Miscellaneous Papers & Datasets</h2> |
| <ul class="papers-list"> |
| <li>📄 <a href="https://drive.google.com/file/d/1V6zFx7p-tLV6ZRiyLhVvbjI12PKyQnmF/view?usp=sharing">Nguyen et al. NICS'18 – Building Vietnamese Linguistic Resources for Social Network Text Analysis</a></li> |
| <li>📄 <a href="https://arxiv.org/pdf/1711.04951.pdf">Nguyen et al. ALTA'17</a></li> |
| <li>📄 <a href="https://arxiv.org/pdf/1412.4021.pdf">Nguyen et al. 2015</a></li> |
| <li>📄 <a href="http://www.aclweb.org/anthology/E14-2005">Nguyen et al. 2014</a></li> |
| <li>📄 <a href="https://link.springer.com/chapter/10.1007/978-3-642-19400-9_15">Nguyen et al. 2011</a></li> |
| <li>📄 <a href="http://ieeexplore.ieee.org/document/6063458/?reload=true">Nguyen et al. 2011</a></li> |
| <li>📄 <a href="http://www.aclweb.org/anthology/I11-1035">Nguyen et al. 2010</a></li> |
| <li>📄 <a href="https://www.researchgate.net/publication/309176280_Vietnamese_POS_Tagging_for_Social_Media_Text">Ngo et al. 2016</a></li> |
| <li>📄 <a href="http://www.jaist.ac.jp/~bao/VLSP-text/ICTrda08/ICT08-VLSP-SP83.pdf">Phan et al. 2008</a></li> |
| <li>📄 <a href="http://www.vnulib.edu.vn:8000/dspace/bitstream/123456789/1801/1/sedev0206-02.pdf">Nguyen et al. 2006</a></li> |
| <li>📄 <a href="http://www.vietlex.com/xu-li-ngon-ngu/50-A_Case_Study_in_POS_Tagging_of_Vietnamese_Texts">Nguyen et al. 2003</a></li> |
| </ul> |
| </div> |
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| <div class="section"> |
| <h2>5. Tools, Demos & Open Source Code</h2> |
| <ul class="tools-list"> |
| <li>🔗 <a href="http://doc.openfpt.vn/#vietnamese-accentizer">OpenFPT: Vietnamese Accentizer</a></li> |
| <li>🔗 <a href="https://github.com/vncorenlp/VnCoreNLP">vncorenlp/VnCoreNLP</a> <code>java</code></li> |
| <li>🔗 <a href="https://github.com/pth1993/NNVLP">pth1993/NNVLP</a> <code>python,bash</code></li> |
| <li>🔗 <a href="https://pypi.python.org/pypi/pyvi">pyvi</a> <code>python</code></li> |
| <li>🔗 <a href="https://github.com/phuonglh/vn.vitk">Vitk</a> <code>java</code></li> |
| <li>🔗 <a href="https://github.com/kanjirz50/viet-morphological-analysis-crf">viet-morphological-analysis-crf</a> <code>python</code> (<a href="http://160.16.58.116/vietnamese/morph_crf">demo</a>)</li> |
| <li>🔗 <a href="https://github.com/lupanh/vTools">lupanh/vTools</a> <code>python</code></li> |
| <li>🔗 <a href="https://github.com/truongdo/vita">truongdo/vita</a> <code>c++</code></li> |
| <li>🔗 <a href="http://rdrpostagger.sourceforge.net/">RDRPOSTagger</a> <code>python</code></li> |
| <li>🔗 <a href="http://vlsp.hpda.vn:8080/demo/?page=resources">vnTagger</a> <code>java</code></li> |
| </ul> |
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