Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userERNIE-Gram: Pre-Training with Explicitly N-Gram Masked Language Modeling for Natural Language Understanding
Ernie-Gram: ما قبل التدريب مع نمذجة لغة ملمقة N-Gram بشكل صريح لفهم اللغة الطبيعية
403
0 0
0.0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
تسهل المعلومات اللغوية الخشنة، مثل الكيانات أو العبارات المسماة، التعلم التمثيل بشكل كاف في التدريب المسبق. تعمل السابقة بشكل أساسي على توسيع هدف نمذجة لغة بيرت الملثمين (MLM) من إخفاء الرموز الفردية إلى تسلسلات متجاورة من الرموز N. نقول أن هذه الطريقة اخفاء هذه المتخلل تهمل طرازات التبعيات داخل الإتصال والمعلومات المشتركة بين المعلومات اللغوية المحبوبة الخشنة. كديل، نقترح Ernie-Gram، وهي طريقة إخفاء N-Gram بشكل صريح لتعزيز دمج المعلومات المحبوسة الخشنة في ما قبل التدريب. في Ernie-Gram، N-Grams ملثمين وتوقعت مباشرة باستخدام هويات N-Gram واضحة بدلا من تسلسلات متجاورة من الرموز N. علاوة على ذلك، توظف Ernie-Gram نموذج مولد للعينة من هويات N-Gram المعقولة كقنعة اختيارية N-Gram وتوقعها في كل من الأخلاق الخشنة والحبوب الدقيقة لتمكين تنبؤات N-Gram الشاملة ونمذجة العلاقة. نحن نسترجع تدريبات Ernie-Gram على النصوص باللغة الإنجليزية والصينية ونغمة الجميلة في 19 مهام المصب. تظهر النتائج التجريبية أن Ernie-Gram يتفوق على نماذج مسبقة التدريب السابقة مثل XLNet و Roberta بهامش كبير، وتحقق نتائج قابلة للمقارنة مع الطرق الحديثة. تم إصدار رموز المصدر والنماذج المدربة مسبقا في https://github.com/paddlepaddle/ernie.
Coarse-grained linguistic information, such as named entities or phrases, facilitates adequately representation learning in pre-training. Previous works mainly focus on extending the objective of BERT's Masked Language Modeling (MLM) from masking individual tokens to contiguous sequences of n tokens. We argue that such contiguously masking method neglects to model the intra-dependencies and inter-relation of coarse-grained linguistic information. As an alternative, we propose ERNIE-Gram, an explicitly n-gram masking method to enhance the integration of coarse-grained information into pre-training. In ERNIE-Gram, n-grams are masked and predicted directly using explicit n-gram identities rather than contiguous sequences of n tokens. Furthermore, ERNIE-Gram employs a generator model to sample plausible n-gram identities as optional n-gram masks and predict them in both coarse-grained and fine-grained manners to enable comprehensive n-gram prediction and relation modeling. We pre-train ERNIE-Gram on English and Chinese text corpora and fine-tune on 19 downstream tasks. Experimental results show that ERNIE-Gram outperforms previous pre-training models like XLNet and RoBERTa by a large margin, and achieves comparable results with state-of-the-art methods. The source codes and pre-trained models have been released at https://github.com/PaddlePaddle/ERNIE.
References used
https://aclanthology.org/
rate research
Read More
We describe the systems developed by the National Research Council Canada for the Uralic language identification shared task at the 2021 VarDial evaluation campaign. We evaluated two different approaches to this task: a probabilistic classifier explo
iting only character 5-grams as features, and a character-based neural network pre-trained through self-supervision, then fine-tuned on the language identification task. The former method turned out to perform better, which casts doubt on the usefulness of deep learning methods for language identification, where they have yet to convincingly and consistently outperform simpler and less costly classification algorithms exploiting n-gram features.
We present a simple yet effective Targeted Adversarial Training (TAT) algorithm to improve adversarial training for natural language understanding. The key idea is to introspect current mistakes and prioritize adversarial training steps to where the
model errs the most. Experiments show that TAT can significantly improve accuracy over standard adversarial training on GLUE and attain new state-of-the-art zero-shot results on XNLI. Our code will be released upon acceptance of the paper.
Advances in English language representation enabled a more sample-efficient pre-training task by Efficiently Learning an Encoder that Classifies Token Replacements Accurately (ELECTRA). Which, instead of training a model to recover masked tokens, it
trains a discriminator model to distinguish true input tokens from corrupted tokens that were replaced by a generator network. On the other hand, current Arabic language representation approaches rely only on pretraining via masked language modeling. In this paper, we develop an Arabic language representation model, which we name AraELECTRA. Our model is pretrained using the replaced token detection objective on large Arabic text corpora. We evaluate our model on multiple Arabic NLP tasks, including reading comprehension, sentiment analysis, and named-entity recognition and we show that AraELECTRA outperforms current state-of-the-art Arabic language representation models, given the same pretraining data and with even a smaller model size.
A possible explanation for the impressive performance of masked language model (MLM) pre-training is that such models have learned to represent the syntactic structures prevalent in classical NLP pipelines. In this paper, we propose a different expla
nation: MLMs succeed on downstream tasks almost entirely due to their ability to model higher-order word co-occurrence statistics. To demonstrate this, we pre-train MLMs on sentences with randomly shuffled word order, and show that these models still achieve high accuracy after fine-tuning on many downstream tasks---including tasks specifically designed to be challenging for models that ignore word order. Our models perform surprisingly well according to some parametric syntactic probes, indicating possible deficiencies in how we test representations for syntactic information. Overall, our results show that purely distributional information largely explains the success of pre-training, and underscore the importance of curating challenging evaluation datasets that require deeper linguistic knowledge.
Code summarization and generation empower conversion between programming language (PL) and natural language (NL), while code translation avails the migration of legacy code from one PL to another. This paper introduces PLBART, a sequence-to-sequence
model capable of performing a broad spectrum of program and language understanding and generation tasks. PLBART is pre-trained on an extensive collection of Java and Python functions and associated NL text via denoising autoencoding. Experiments on code summarization in the English language, code generation, and code translation in seven programming languages show that PLBART outperforms or rivals state-of-the-art models. Moreover, experiments on discriminative tasks, e.g., program repair, clone detection, and vulnerable code detection, demonstrate PLBART's effectiveness in program understanding. Furthermore, analysis reveals that PLBART learns program syntax, style (e.g., identifier naming convention), logical flow (e.g., if block inside an else block is equivalent to else if block) that are crucial to program semantics and thus excels even with limited annotations.
suggested questions
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
