تقرير
Tracking linguistic information in transformer-based sentence embeddings through targeted sparsification
| العنوان: | Tracking linguistic information in transformer-based sentence embeddings through targeted sparsification |
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| المؤلفون: | Nastase, Vivi, Merlo, Paola |
| سنة النشر: | 2024 |
| المجموعة: | Computer Science |
| مصطلحات موضوعية: | Computer Science - Computation and Language, 68T50, I.2.7 |
| الوصف: | Analyses of transformer-based models have shown that they encode a variety of linguistic information from their textual input. While these analyses have shed a light on the relation between linguistic information on one side, and internal architecture and parameters on the other, a question remains unanswered: how is this linguistic information reflected in sentence embeddings? Using datasets consisting of sentences with known structure, we test to what degree information about chunks (in particular noun, verb or prepositional phrases), such as grammatical number, or semantic role, can be localized in sentence embeddings. Our results show that such information is not distributed over the entire sentence embedding, but rather it is encoded in specific regions. Understanding how the information from an input text is compressed into sentence embeddings helps understand current transformer models and help build future explainable neural models. Comment: 12 pages, 9 figures, 1 table, published in RepL4NLP 2024 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.18119 |
| رقم الأكسشن: | edsarx.2407.18119 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |