activity
20192026
most citedMassive Multi-Document Summarization of Product Reviews with Weak Supervision

10 citations · 35 across the 19 of their papers we have counts for

collaborators

20 papers

cs.CL2026

CoWriter: Guiding Methodological and Synergetic Human-LLM Co-Authoring

Shmuel Amar, Benjamin Lieber, Ori Shapira +4

While LLMs have transformed text generation, standard chat-and-canvas interfaces often reduce human authoring to quite passive supervision, causing review fatigue, over-reliance on…

cs.IR2026

The Overlooked Role of Graded Relevance Thresholds in Multilingual Dense Retrieval

Tomer Wullach, Ori Shapira, Amir DN Cohen

Dense retrieval models are typically fine-tuned with contrastive learning objectives that require binary relevance judgments, even though relevance is inherently graded. We analyze…

cs.CL2025

Consensus or Conflict? Fine-Grained Evaluation of Conflicting Answers in Question-Answering

Eviatar Nachshoni, Arie Cattan, Shmuel Amar +2

Large Language Models (LLMs) have demonstrated strong performance in question answering (QA) tasks. However, Multi-Answer Question Answering (MAQA), where a question may have sever…

cs.CL2025

A Unifying Scheme for Extractive Content Selection Tasks

Shmuel Amar, Ori Shapira, Aviv Slobodkin +1

A broad range of NLP tasks involve selecting relevant text spans from given source texts. Despite this shared objective, such \textit{content selection} tasks have traditionally be…

cs.CL2025

Information Types in Product Reviews

Ori Shapira, Yuval Pinter

Information in text is communicated in a way that supports a goal for its reader. Product reviews, for example, contain opinions, tips, product descriptions, and many other types o…

cs.CL2025

Measuring the Effect of Transcription Noise on Downstream Language Understanding Tasks

Ori Shapira, Shlomo E. Chazan, Amir DN Cohen

With the increasing prevalence of recorded human speech, spoken language understanding (SLU) is essential for its efficient processing. In order to process the speech, it is common…

cs.LG2024

Quality Matters: Evaluating Synthetic Data for Tool-Using LLMs

Shadi Iskander, Nachshon Cohen, Zohar Karnin +2

Training large language models (LLMs) for external tool usage is a rapidly expanding field, with recent research focusing on generating synthetic data to address the shortage of av…

cs.CL2024

SEAM: A Stochastic Benchmark for Multi-Document Tasks

Gili Lior, Avi Caciularu, Arie Cattan +3

Various tasks, such as summarization, multi-hop question answering, or coreference resolution, are naturally phrased over collections of real-world documents. Such tasks present a…

cs.CL2024

The Power of Summary-Source Alignments

Ori Ernst, Ori Shapira, Aviv Slobodkin +5

Multi-document summarization (MDS) is a challenging task, often decomposed to subtasks of salience and redundancy detection, followed by text generation. In this context, alignment…

cs.CL2024

Multi-Review Fusion-in-Context

Aviv Slobodkin, Ori Shapira, Ran Levy +1

Grounded text generation, encompassing tasks such as long-form question-answering and summarization, necessitates both content selection and content consolidation. Current end-to-e…

cs.CL2023

OpenAsp: A Benchmark for Multi-document Open Aspect-based Summarization

Shmuel Amar, Liat Schiff, Ori Ernst +3

The performance of automatic summarization models has improved dramatically in recent years. Yet, there is still a gap in meeting specific information needs of users in real-world…

cs.CL2023

SummHelper: Collaborative Human-Computer Summarization

Aviv Slobodkin, Niv Nachum, Shmuel Amar +2

Current approaches for text summarization are predominantly automatic, with rather limited space for human intervention and control over the process. In this paper, we introduce Su…

cs.CL2021★ 2 cited

Proposition-Level Clustering for Multi-Document Summarization

Ori Ernst, Avi Caciularu, Ori Shapira +4

Text clustering methods were traditionally incorporated into multi-document summarization (MDS) as a means for coping with considerable information repetition. Particularly, cluste…

cs.CL2021★ 1 cited

Multi-Document Keyphrase Extraction: Dataset, Baselines and Review

Ori Shapira, Ramakanth Pasunuru, Ido Dagan +1

Keyphrase extraction has been extensively researched within the single-document setting, with an abundance of methods, datasets and applications. In contrast, multi-document keyphr…

cs.CL2021★ 9 cited

iFacetSum: Coreference-based Interactive Faceted Summarization for Multi-Document Exploration

Eran Hirsch, Alon Eirew, Ori Shapira +7

We introduce iFacetSum, a web application for exploring topical document sets. iFacetSum integrates interactive summarization together with faceted search, by providing a novel fac…

cs.CL2020★ 1 cited

Evaluating Interactive Summarization: an Expansion-Based Framework

Ori Shapira, Ramakanth Pasunuru, Hadar Ronen +3

Allowing users to interact with multi-document summarizers is a promising direction towards improving and customizing summary results. Different ideas for interactive summarization…

cs.CL2020

Summary-Source Proposition-level Alignment: Task, Datasets and Supervised Baseline

Ori Ernst, Ori Shapira, Ramakanth Pasunuru +4

Aligning sentences in a reference summary with their counterparts in source documents was shown as a useful auxiliary summarization task, notably for generating training data for s…

cs.CL2020★ 10 cited

Massive Multi-Document Summarization of Product Reviews with Weak Supervision

Ori Shapira, Ran Levy

Product reviews summarization is a type of Multi-Document Summarization (MDS) task in which the summarized document sets are often far larger than in traditional MDS (up to tens of…

cs.CL2019★ 8 cited

Better Rewards Yield Better Summaries: Learning to Summarise Without References

Florian Böhm, Yang Gao, Christian M. Meyer +3

Reinforcement Learning (RL) based document summarisation systems yield state-of-the-art performance in terms of ROUGE scores, because they directly use ROUGE as the rewards during…

cs.CL2019★ 4 cited

Crowdsourcing Lightweight Pyramids for Manual Summary Evaluation

Ori Shapira, David Gabay, Yang Gao +5

Conducting a manual evaluation is considered an essential part of summary evaluation methodology. Traditionally, the Pyramid protocol, which exhaustively compares system summaries…