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Consumers' purchase decisions are increasingly influenced by user-generated online reviews. Accordingly, there has been growing concern about the potential for posting "deceptive opinion spam" -- fictitious reviews that have been…

社会与信息网络 · 计算机科学 2014-09-17 Myle Ott , Claire Cardie , Jeff Hancock

Data-hungry deep neural networks have established themselves as the standard for many NLP tasks including the traditional sequence tagging ones. Despite their state-of-the-art performance on high-resource languages, they still fall behind…

计算与语言 · 计算机科学 2021-11-19 Gözde Gül Şahin

Despite the potential of Large Language Models (LLMs) in medicine, they may generate responses lacking supporting evidence or based on hallucinated evidence. While Retrieval Augment Generation (RAG) is popular to address this issue, few…

Data augmentation promises to alleviate data scarcity. This is most important in cases where the initial data is in short supply. This is, for existing methods, also where augmenting is the most difficult, as learning the full data…

计算与语言 · 计算机科学 2020-03-24 Guillaume Raille , Sandra Djambazovska , Claudiu Musat

In this era of information explosion, deceivers use different domains or mediums of information to exploit the users, such as News, Emails, and Tweets. Although numerous research has been done to detect deception in all these domains,…

计算与语言 · 计算机科学 2023-05-03 Sadat Shahriar , Arjun Mukherjee , Omprakash Gnawali

Retrieval-augmented language models (RALMs) hold promise to produce language understanding systems that are are factual, efficient, and up-to-date. An important desideratum of RALMs, is that retrieved information helps model performance…

计算与语言 · 计算机科学 2024-05-07 Ori Yoran , Tomer Wolfson , Ori Ram , Jonathan Berant

Contextual ranking models have delivered impressive performance improvements over classical models in the document ranking task. However, these highly over-parameterized models tend to be data-hungry and require large amounts of data even…

信息检索 · 计算机科学 2023-11-28 Abhijit Anand , Jurek Leonhardt , Jaspreet Singh , Koustav Rudra , Avishek Anand

Peer review serves as the gatekeeper of science, yet the surge in submissions and widespread adoption of large language models (LLMs) in scholarly evaluation present unprecedented challenges. While recent work has focused on using LLMs to…

While deep learning techniques have shown promising results in many natural language processing (NLP) tasks, it has not been widely applied to the clinical domain. The lack of large datasets and the pervasive use of domain-specific language…

计算与语言 · 计算机科学 2019-06-20 Jiin Nam , Seunghyun Yoon , Kyomin Jung

As more than 70$\%$ of reviews in the existing opinion summary data set are positive, current opinion summarization approaches are reluctant to generate negative summaries given the input of negative texts. To address such sentiment bias, a…

计算与语言 · 计算机科学 2025-03-04 Yanyue Zhang , Pengfei Li , Yilong Lai , Deyu Zhou , Yulan He

The fluency and creativity of large pre-trained language models (LLMs) have led to their widespread use, sometimes even as a replacement for traditional search engines. Yet language models are prone to making convincing but factually…

计算与语言 · 计算机科学 2023-11-15 Katherine Tian , Eric Mitchell , Huaxiu Yao , Christopher D. Manning , Chelsea Finn

Online shopping stores have grown steadily over the past few years. Due to the massive growth of these businesses, the detection of fake reviews has attracted attention. Fake reviews are seriously trying to mislead customers and thereby…

计算与语言 · 计算机科学 2023-01-10 Abrar Qadir Mir , Furqan Yaqub Khan , Mohammad Ahsan Chishti

Financial sentiment analysis is critical for valuation and investment decision-making. Traditional NLP models, however, are limited by their parameter size and the scope of their training datasets, which hampers their generalization…

计算与语言 · 计算机科学 2023-11-07 Boyu Zhang , Hongyang Yang , Tianyu Zhou , Ali Babar , Xiao-Yang Liu

In this new digital era, accessibility to real-world events is moving towards web-based modules. This is mostly visible on e-commerce websites where there is limited availability of physical verification. With this unforeseen development,…

多媒体 · 计算机科学 2024-01-12 Sankarshan Dasgupta , James Buckley

Deep convolutional neural networks have achieved exceptional results on multiple detection and recognition tasks. However, the performance of such detectors are often evaluated in public benchmarks under constrained and non-realistic…

计算机视觉与模式识别 · 计算机科学 2022-03-23 Yuhang Lu , Touradj Ebrahimi

Malicious crowdsourcing forums are gaining traction as sources of spreading misinformation online, but are limited by the costs of hiring and managing human workers. In this paper, we identify a new class of attacks that leverage deep…

密码学与安全 · 计算机科学 2017-09-11 Yuanshun Yao , Bimal Viswanath , Jenna Cryan , Haitao Zheng , Ben Y. Zhao

Retrieval augmentation, which enhances downstream models by a knowledge retriever and an external corpus instead of by merely increasing the number of model parameters, has been successfully applied to many natural language processing (NLP)…

信息检索 · 计算机科学 2023-09-18 Chenyu Zhao , Yunjiang Jiang , Yiming Qiu , Han Zhang , Wen-Yun Yang

Facial manipulation by deep fake has caused major security risks and raised severe societal concerns. As a countermeasure, a number of deep fake detection methods have been proposed recently. Most of them model deep fake detection as a…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Aakash Varma Nadimpalli , Ajita Rattani

Named Entity Recognition (NER) is a machine learning task that traditionally relies on supervised learning and annotated data. Acquiring such data is often a challenge, particularly in specialized fields like medical, legal, and financial…

The aim of this article is to investigate the fine-tuning potential of natural language inference (NLI) data to improve information retrieval and ranking. We demonstrate this for both English and Polish languages, using data from one of the…

计算与语言 · 计算机科学 2023-08-08 Roman Dušek , Aleksander Wawer , Christopher Galias , Lidia Wojciechowska