python3run_classifier.py\--task_name=MRPC\--do_train=true\--do_eval=true\--data_dir=$GLUE_DIR/MRPC\--vocab_file=$BERT_BASE_DIR/vocab.txt\--bert_config_file=$BERT_BASE_DIR/bert_config.json\--init_checkpoint=$BERT_BASE_DIR/bert_model.ckpt\--max_seq_length=128\--train_batch_siz...
但是,如果直接使用原生bert模型来提取句向量,效果十分不理想,甚至不如GloVe提取的句向量。 fine-tune 所以,作者提出一种针对句向量,对bert模型进行微调的方法,包括无监督和监督训练。 fine-tune的三种结构: 1. Classification Objective Function 如图1的分类结构,句子A和句子B输入到同个bert模型(参数绑定),然后使用[...
主要思路感觉还是接着之前的SentenceBert一脉相承的(这部分内容我之前也写过一个小博客《文献阅读:Sentence-BERT:Sentence Embeddings using Siamese BERT-Networks》进行过介绍),主体还是使用的Bert或者Roberta模型,但是不同于sentence bert的截断迁移,这里采用的方式是通过引入对比学习来直接对sentence embedding进行学习,从...
TREC(question-type classification):来自TREC的细粒度问题类型分类,多分类 MRPC:Microsoft Research Paraphrase Corpus from parallel news sources,释义检测。 实验结果显示,SBERT生成的句子向量似乎能够很好捕获情感信息,在MR、CR、SST上都有较大的提升;BERT在之前的STS数据集上表现比较差,但是在SentEval上却有了不错...
Our idea is to reformulate the sentence classification problem as a reading comprehension problem and employ pretrained BERT model to tackle the problem. By the reformulation, we yield state-of-the-art results for scientific abstract classification on two benchmark datasets, i.e., PubMed RCT and...
为了能够 fine-tune BERT/RoBERTa,文章采用了孪生网络和三胞胎网络来更新参数,以达到生成的句子向量更具语义信息。该网络结构取决于具体的训练数据,文中实验了下面几种机构和目标函数 Classification Objective Function 针对分类问题,作者将向量 u,v,|u−v| 三个向量拼接在一起,然后乘以一个权重参数 Wt∈R3n×k...
TREC(question-type classification):来自TREC的细粒度问题类型分类,多分类 MRPC:Microsoft Research Paraphrase Corpus from parallel news sources,释义检测。 实验结果显示,SBERT生成的句子向量似乎能够很好捕获情感信息,在MR、CR、SST上都有较大的提升;B...
为了能够fine-tune BERT/RoBERTa,文章采用了孪生网络和三胞胎网络来更新权重参数,以达到生成的句子向量具有语义意义。该网络结构依赖于具体的训练数据,文中实验了下面几种结构和目标函数: Classification Objective Function: 这里将embedding向量u和v以及它们之间的差向量拼接在一起,组成一个新的向量,乘以权重参数Wt∈R3...
我们首先介绍 BERT,然后讨论最先进的句子嵌入方法。 BERT (Devlin et al., 2018) is a pre-trained transformer network (Vaswani et al., 2017), which set for various NLP tasks new state-of-the-art results, including question answering, sentence classification, and sentence-pair regression. The inpu...
joy i feel it is acceptable to make requests using this name;joy i have a feeling there are a lot of pissed off people in sea org in hollywood where scientology has become the monster that devoured wa wonderfully sleazy bohemian area;anger i feel pained by this;sadness i am reading about...