Papers by Benjamin Sznajder
Financial Event Extraction Using Wikipedia-Based Weak Supervision (D19-51)
Copied to clipboard
Liat Ein-Dor, Ariel Gera, Orith Toledo-Ronen, Alon Halfon, Benjamin Sznajder, Lena Dankin, Yonatan Bilu, Yoav Katz, Noam Slonim
| Challenge: | Existing methods for detecting financial and economic events from text have relied on a knowledge-base of financial events, or corresponding financial figures. |
| Approach: | They propose to use Wikipedia sections to extract weak labels for sentences describing economic events from text. |
| Outcome: | The proposed method can extract weak labels for sentences describing economic events from Wikipedia sentences. |
TWEETSUMM - A Dialog Summarization Dataset for Customer Service (2021.findings-emnlp)
Copied to clipboard
Guy Feigenblat, Chulaka Gunasekara, Benjamin Sznajder, Sachindra Joshi, David Konopnicki, Ranit Aharonov
| Challenge: | a dataset focused on customer care dialog summarization is the first to focus on real-world customer care conversations . it contains extractive and abstractive summaries, and extractive summarizing methods are also introduced . |
| Approach: | They present a customer care dialog summarization dataset with 6500 human annotated summaries . they introduce an unsupervised method for extracting dialog summary data . |
| Outcome: | The proposed method is based on real-world customer support dialogs and includes extractive and abstractive summaries. |
Using Question Answering Rewards to Improve Abstractive Summarization (2021.findings-emnlp)
Copied to clipboard
| Challenge: | Neural abstractive summarization models have seen improvements in recent years, but they still suffer from multiple drawbacks. |
| Approach: | They propose a general framework to train abstractive summarization models to alleviate these issues by question-answering based rewards. |
| Outcome: | The proposed framework is preferred over general abstractive summarization models. |
Argument Invention from First Principles (P19-1)
Copied to clipboard
Yonatan Bilu, Ariel Gera, Daniel Hershcovich, Benjamin Sznajder, Dan Lahav, Guy Moshkowich, Anael Malet, Assaf Gavron, Noam Slonim
| Challenge: | Argument Invention is a task that is often referred to as a natural way of inventing arguments, but has not been formalized in the context of NLP. |
| Approach: | They propose to define a taxonomy of recurring arguments and to automatically identify which of them are relevant to the topic. |
| Outcome: | The proposed taxonomy is coherent, covers the relevant topics and coincides with what debaters actually argue in their speeches, and facilitates automatic argument invention for new topics. |
The Benefits of Bad Advice: Autocontrastive Decoding across Model Layers (2023.acl-long)
Copied to clipboard
Ariel Gera, Roni Friedman, Ofir Arviv, Chulaka Gunasekara, Benjamin Sznajder, Noam Slonim, Eyal Shnarch
| Challenge: | Existing approaches to apply language models to tasks that require intermediate representations are less informative. |
| Approach: | They propose a novel approach that utilizes the contrast between layers to improve text generation outputs. |
| Outcome: | The proposed approach mitigates degenerative behaviors of the model in open-ended generation, significantly improving the quality of generated texts. |
Label-Efficient Model Selection for Text Generation (2024.acl-long)
Copied to clipboard
| Challenge: | Model selection for a given task can entail extensive annotation of the quality of outputs of different models. |
| Approach: | They propose a model-agnostic method to make an informed decision between candidate text generation models based on preference annotations. |
| Outcome: | The proposed method reduces the required number of annotations by up to 75% while maintaining high evaluation reliability. |
Summary Grounded Conversation Generation (2021.findings-acl)
Copied to clipboard
| Challenge: | Existing datasets for conversation summarization are small due to the lack of large-scale datasets. |
| Approach: | They propose three approaches to generate summary grounded conversations, and evaluate the generated conversations using automatic measures and human judgements. |
| Outcome: | The proposed models can generate entire conversations with only a summary of a conversation as the input. |
Learning Concept Abstractness Using Weak Supervision (D18-1)
Copied to clipboard
Ella Rabinovich, Benjamin Sznajder, Artem Spector, Ilya Shnayderman, Ranit Aharonov, David Konopnicki, Noam Slonim
| Challenge: | Existing methods for inferring abstractness of words and expressions without labeled data are limited and limited. |
| Approach: | They propose a weakly supervised approach for inferring the property of abstractness of words and expressions in the absence of labeled data. |
| Outcome: | The proposed approach obtains high correlation with human labels in the absence of labeled data. |