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Element-aware Summarization with Large Language Models: Expert-aligned Evaluation and Chain-of-Thought Method

arXiv.org Artificial Intelligence

Automatic summarization generates concise summaries that contain key ideas of source documents. As the most mainstream datasets for the news sub-domain, CNN/DailyMail and BBC XSum have been widely used for performance benchmarking. However, the reference summaries of those datasets turn out to be noisy, mainly in terms of factual hallucination and information redundancy. To address this challenge, we first annotate new expert-writing Element-aware test sets following the "Lasswell Communication Model" proposed by Lasswell (1948), allowing reference summaries to focus on more fine-grained news elements objectively and comprehensively. Utilizing the new test sets, we observe the surprising zero-shot summary ability of LLMs, which addresses the issue of the inconsistent results between human preference and automatic evaluation metrics of LLMs' zero-shot summaries in prior work. Further, we propose a Summary Chain-of-Thought (SumCoT) technique to elicit LLMs to generate summaries step by step, which helps them integrate more fine-grained details of source documents into the final summaries that correlate with the human writing mindset. Experimental results show our method outperforms state-of-the-art fine-tuned PLMs and zero-shot LLMs by +4.33/+4.77 in ROUGE-L on the two datasets, respectively. Dataset and code are publicly available at https://github.com/Alsace08/SumCoT.


Hedges in Bidirectional Translations of Publicity-Oriented Documents

arXiv.org Artificial Intelligence

Hedges are widely studied across registers and disciplines, yet research on the translation of hedges in political texts is extremely limited. This contrastive study is dedicated to investigating whether there is a diachronic change in the frequencies of hedging devices in the target texts, to what extent the changing frequencies of translated hedges through years are attributed to the source texts, and what translation strategies are adopted to deal with them. For the purposes of this research, two types of official political texts and their translations from China and the United Nations were collected to form three sub-corpora. Results show that hedges tend to appear more frequently in English political texts, be it original English or translated English. In addition, directionality seems to play an important role in influencing both the frequencies and translation strategies regarding the use of hedges. A noticeable diachronic increase of hedging devices is also observed in our corpus.


A first look into the carbon footprint of federated learning

arXiv.org Artificial Intelligence

Despite impressive results, deep learning-based technologies also raise severe privacy and environmental concerns induced by the training procedure often conducted in data centers. In response, alternatives to centralized training such as Federated Learning (FL) have emerged. Perhaps unexpectedly, FL is starting to be deployed at a global scale by companies that must adhere to new legal demands and policies originating from governments and social groups advocating for privacy protection. \textit{However, the potential environmental impact related to FL remains unclear and unexplored. This paper offers the first-ever systematic study of the carbon footprint of FL.} First, we propose a rigorous model to quantify the carbon footprint, hence facilitating the investigation of the relationship between FL design and carbon emissions. Then, we compare the carbon footprint of FL to traditional centralized learning. Our findings show that, depending on the configuration, FL can emit up to two order of magnitude more carbon than centralized machine learning. However, in certain settings, it can be comparable to centralized learning due to the reduced energy consumption of embedded devices. We performed extensive experiments across different types of datasets, settings and various deep learning models with FL. Finally, we highlight and connect the reported results to the future challenges and trends in FL to reduce its environmental impact, including algorithms efficiency, hardware capabilities, and stronger industry transparency.


CEO: Corpus-based Open-Domain Event Ontology Induction

arXiv.org Artificial Intelligence

Existing event-centric NLP models often only apply to the pre-defined ontology, which significantly restricts their generalization capabilities. This paper presents CEO, a novel Corpus-based Event Ontology induction model to relax the restriction imposed by pre-defined event ontologies. Without direct supervision, CEO leverages distant supervision from available summary datasets to detect corpus-wise salient events and exploits external event knowledge to force events within a short distance to have close embeddings. Experiments on three popular event datasets show that the schema induced by CEO has better coverage and higher accuracy than previous methods. Moreover, CEO is the first event ontology induction model that can induce a hierarchical event ontology with meaningful names on eleven open-domain corpora, making the induced schema more trustworthy and easier to be further curated.


REFinD: Relation Extraction Financial Dataset

arXiv.org Artificial Intelligence

A number of datasets for Relation Extraction (RE) have been created The exponential progress of AI across multiple domains can largely to aide downstream tasks such as information retrieval, semantic be attributed to the availability of large datasets coupled with an search, question answering and textual entailment. However, increase in available compute power. Relation extraction (RE) from these datasets fail to capture financial-domain specific challenges text is a fundamental problem in NLP and information retrieval, since most of these datasets are compiled using general knowledge which facilitates various tasks like knowledge graph construction, sources, hindering real-life progress and adoption within the financial question answering and semantic search. It has seen significant world. To address this limitation, we propose REFinD, the progress in recent years, thanks to advanced machine learning techniques first large-scale annotated dataset of relations, with 29K instances and the availability of large-scale relation extraction datasets.


Smart tech tips to make summer travel cheaper and less stressful

FOX News

Renowned CIO/CTO Rhonda Vetere weighs in on ChatGPT creator Sam Altman's calls for government regulation of AI on'Fox & Friends.' Delays can stack up as the day goes, so your best bet to make sure you get on the plane is to choose a flight before 3 p.m. Wednesday is one of the cheapest days to fly, so there's your plan: Wednesday before 3. Pro tip: You can check where your plane is to get an idea of whether your upcoming flight will be delayed. The airline you're flying might display this in the app, or you can use Flight Aware. Enter your flight number to get details on the aircraft and its status. Mobile Passport Control is a free U.S. Customs and Border Protection app that lets you get back home faster. Unlike CLEAR or TSA PreCheck, you don't need any pre-approval.


The Horrific Content a Kenyan Worker Had to See While Training ChatGPT

Slate

This article is from Big Technology, a newsletter by Alex Kantrowitz. Richard Mathenge felt he'd landed the perfect role when he started training OpenAI's GPT model in 2021. After years of working in customer service in Nairobi, Kenya, he was finally involved in something that felt meaningful and held a future for him. But the position left him scarred. For nine hours per day, five days a week, Mathenge led a team that taught the A.I. model about explicit content.


Generative Pre-trained Transformer: A Comprehensive Review on Enabling Technologies, Potential Applications, Emerging Challenges, and Future Directions

arXiv.org Artificial Intelligence

The Generative Pre-trained Transformer (GPT) represents a notable breakthrough in the domain of natural language processing, which is propelling us toward the development of machines that can understand and communicate using language in a manner that closely resembles that of humans. GPT is based on the transformer architecture, a deep neural network designed for natural language processing tasks. Due to their impressive performance on natural language processing tasks and ability to effectively converse, GPT have gained significant popularity among researchers and industrial communities, making them one of the most widely used and effective models in natural language processing and related fields, which motivated to conduct this review. This review provides a detailed overview of the GPT, including its architecture, working process, training procedures, enabling technologies, and its impact on various applications. In this review, we also explored the potential challenges and limitations of a GPT. Furthermore, we discuss potential solutions and future directions. Overall, this paper aims to provide a comprehensive understanding of GPT, enabling technologies, their impact on various applications, emerging challenges, and potential solutions.


Sensitive Data Detection with High-Throughput Machine Learning Models in Electrical Health Records

arXiv.org Artificial Intelligence

Kai Zhang, PhD, Xiaoqian Jiang, PhD The University of Texas Health Science Center, McWilliams School of Biomedical Informatics, Houston, TX, USA Abstract: In the era of big data, there is an increasing need for healthcare providers, communities, and researchers to share data and collaborate to improve health outcomes, generate valuable insights, and advance research. The Health Insurance Portability and Accountability Act of 1996 (HIPAA) is a federal law designed to protect sensitive health information by defining regulations for protected health information (PHI). However, it does not provide efficient tools for detecting or removing PHI before data sharing. One of the challenges in this area of research is the heterogeneous nature of PHI fields in data across different parties. This variability makes rule-based sensitive variable identification systems that work on one database fail on another. To address this issue, our paper explores the use of machine learning algorithms to identify sensitive variables in structured data, thus facilitating the de-identification process. We made a key observation that the distributions of metadata of PHI fields and non-PHI fields are very different. Based on this novel finding, we engineered over 30 features from the metadata of the original features and used machine learning to build classification models to automatically identify PHI fields in structured Electronic Health Record (EHR) data. We trained the model on a variety of large EHR databases from different data sources and found that our algorithm achieves 99% accuracy when detecting PHI-related fields for unseen datasets.


Mist: Towards Improved Adversarial Examples for Diffusion Models

arXiv.org Artificial Intelligence

Diffusion Models (DMs) have empowered great success in artificial-intelligence-generated content, especially in artwork creation, yet raising new concerns in intellectual properties and copyright. For example, infringers can make profits by imitating non-authorized human-created paintings with DMs. Recent researches suggest that various adversarial examples for diffusion models can be effective tools against these copyright infringements. However, current adversarial examples show weakness in transferability over different painting-imitating methods and robustness under straightforward adversarial defense, for example, noise purification. We surprisingly find that the transferability of adversarial examples can be significantly enhanced by exploiting a fused and modified adversarial loss term under consistent parameters. In this work, we comprehensively evaluate the cross-method transferability of adversarial examples. The experimental observation shows that our method generates more transferable adversarial examples with even stronger robustness against the simple adversarial defense.