AlephBERT:A Hebrew Large Pre-Trained Language Model to Start-off your Hebrew NLP Application With
About
Large Pre-trained Language Models (PLMs) have become ubiquitous in the development of language understanding technology and lie at the heart of many artificial intelligence advances. While advances reported for English using PLMs are unprecedented, reported advances using PLMs in Hebrew are few and far between. The problem is twofold. First, Hebrew resources available for training NLP models are not at the same order of magnitude as their English counterparts. Second, there are no accepted tasks and benchmarks to evaluate the progress of Hebrew PLMs on. In this work we aim to remedy both aspects. First, we present AlephBERT, a large pre-trained language model for Modern Hebrew, which is trained on larger vocabulary and a larger dataset than any Hebrew PLM before. Second, using AlephBERT we present new state-of-the-art results on multiple Hebrew tasks and benchmarks, including: Segmentation, Part-of-Speech Tagging, full Morphological Tagging, Named-Entity Recognition and Sentiment Analysis. We make our AlephBERT model publicly available, providing a single point of entry for the development of Hebrew NLP applications.
Related benchmarks
| Task | Dataset | Result | Rank | |
|---|---|---|---|---|
| Named Entity Recognition | NEMO Corpus (test) | Aligned MSET F183.94 | 15 | |
| Morphological Segmentation | NEMO Corpus (test) | Aligned mset F1100 | 15 | |
| Named Entity Recognition | Ben-Mordecai Corpora (BMC) | F1 Score91.12 | 13 | |
| Morphological Analysis | SPMRL Corpus mset (test) | POS F194.9 | 5 | |
| Morphological Features Extraction | UD Corpus CoNLL shared task (test) | Morphological Features F192.71 | 5 | |
| Named Entity Recognition | Nemo | F1 Score84.91 | 5 | |
| Part-of-Speech Tagging | UD Corpus Hebrew (test) | POS F196.2 | 5 | |
| Part-of-Speech Tagging | UD Corpus CoNLL shared task (test) | POS F195.84 | 5 | |
| Segmentation | UD Corpus CoNLL shared task (test) | Segmentation F197.7 | 5 | |
| Sentiment Analysis | Facebook Corpus Old leak | Token Accuracy93.15 | 5 |