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Ranit Aharonov

6 accepted papers

2022

Cluster & Tune: Boost Cold Start Performance in Text Classification

ACL 2022long

In real-world scenarios, a text classification task often begins with a cold start, when labeled data is scarce. In such cases, the common practice of fine-tuning pre-trained models, such as BERT, for a target classification task, is prone to produce poor performance. We suggest a method to boost th…

2022

Fortunately, Discourse Markers Can Enhance Language Models for Sentiment Analysis

AAAI 2022technical

In recent years, pretrained language models have revolutionized the NLP world, while achieving state of the art performance in various downstream tasks. However, in many cases, these models do not perform well when labeled data is scarce and the model is expected to perform in the zero or few shot s…

2022

Quality Controlled Paraphrase Generation

ACL 2022long

Paraphrase generation has been widely used in various downstream tasks. Most tasks benefit mainly from high quality paraphrases, namely those that are semantically similar to, yet linguistically diverse from, the original sentence. Generating high-quality paraphrases is challenging as it becomes inc…

2021

TWEETSUMM - A Dialog Summarization Dataset for Customer Service

EMNLP 2021finding

In a typical customer service chat scenario, customers contact a support center to ask for help or raise complaints, and human agents try to solve the issues. In most cases, at the end of the conversation, agents are asked to write a short summary emphasizing the problem and the proposed solution, u…

2021

Using Question Answering Rewards to Improve Abstractive Summarization

EMNLP 2021finding

Neural abstractive summarization models have drastically improved in the recent years. However, the summaries generated by these models generally suffer from issues such as: not capturing the critical facts in source documents, and containing facts that are inconsistent with the source documents. In…

2021

YASO: A Targeted Sentiment Analysis Evaluation Dataset for Open-Domain Reviews

EMNLP 2021main

Current TSA evaluation in a cross-domain setup is restricted to the small set of review domains available in existing datasets. Such an evaluation is limited, and may not reflect true performance on sites like Amazon or Yelp that host diverse reviews from many domains. To address this gap, we presen…