最近的研究利用了先进的生成语言模型来生成自然语言解释(NLE),以了解某个文本可能会令人讨厌。我们提出了一系列解释提示方法,灵感来自思想链研究\ cite {wei2022chain},以生成高质量的nle,以实现隐式仇恨言论。我们基于选定的主流预训练的语言模型(PLM)建立基准,包括GPT-2,GPT-NEO,OPT,T5和BART,以及来自词汇,语义和忠实方面的各种评估指标。为了进一步评估人类感知产生的NLE的质量,我们雇用人类注释者来评估生成的NLE的信息性和清晰度。然后,我们检查哪种自动评估指标可以最好地与人类通知的信息性和清晰度度量分数相关。
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The recent success of large language models for text generation poses a severe threat to academic integrity, as plagiarists can generate realistic paraphrases indistinguishable from original work. However, the role of large autoregressive transformers in generating machine-paraphrased plagiarism and their detection is still developing in the literature. This work explores T5 and GPT-3 for machine-paraphrase generation on scientific articles from arXiv, student theses, and Wikipedia. We evaluate the detection performance of six automated solutions and one commercial plagiarism detection software and perform a human study with 105 participants regarding their detection performance and the quality of generated examples. Our results suggest that large models can rewrite text humans have difficulty identifying as machine-paraphrased (53% mean acc.). Human experts rate the quality of paraphrases generated by GPT-3 as high as original texts (clarity 4.0/5, fluency 4.2/5, coherence 3.8/5). The best-performing detection model (GPT-3) achieves a 66% F1-score in detecting paraphrases.
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在线巨魔增加了社会成本,并对个人造成心理损害。随着自动化帐户利用机器人进行拖钓的扩散,目标个人用户很难在定量和定性上处理这种情况。为了解决这个问题,我们专注于自动化对抗巨魔的方法,因为对战斗巨魔的反应鼓励社区用户在不损害言论自由的情况下保持持续的讨论。为此,我们为自动反响应生成提出了一个新颖的数据集。特别是,我们构建了一个配对数据集,其中包括巨魔评论和使用标记的响应策略的反响应,该策略使我们的数据集中的模型可以通过根据指定策略改变反响应来生成响应。我们执行了三个任务来评估数据集的有效性,并通过自动和人类评估评估结果。在人类评估中,我们证明了数据集中微调的模型显示出策略控制的句子生成的性能有了显着改善。
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An optimal delivery of arguments is key to persuasion in any debate, both for humans and for AI systems. This requires the use of clear and fluent claims relevant to the given debate. Prior work has studied the automatic assessment of argument quality extensively. Yet, no approach actually improves the quality so far. Our work is the first step towards filling this gap. We propose the task of claim optimization: to rewrite argumentative claims to optimize their delivery. As an initial approach, we first generate a candidate set of optimized claims using a sequence-to-sequence model, such as BART, while taking into account contextual information. Our key idea is then to rerank generated candidates with respect to different quality metrics to find the best optimization. In automatic and human evaluation, we outperform different reranking baselines on an English corpus, improving 60% of all claims (worsening 16% only). Follow-up analyses reveal that, beyond copy editing, our approach often specifies claims with details, whereas it adds less evidence than humans do. Moreover, its capabilities generalize well to other domains, such as instructional texts.
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This paper addresses the quality issues in existing Twitter-based paraphrase datasets, and discusses the necessity of using two separate definitions of paraphrase for identification and generation tasks. We present a new Multi-Topic Paraphrase in Twitter (MultiPIT) corpus that consists of a total of 130k sentence pairs with crowdsoursing (MultiPIT_crowd) and expert (MultiPIT_expert) annotations using two different paraphrase definitions for paraphrase identification, in addition to a multi-reference test set (MultiPIT_NMR) and a large automatically constructed training set (MultiPIT_Auto) for paraphrase generation. With improved data annotation quality and task-specific paraphrase definition, the best pre-trained language model fine-tuned on our dataset achieves the state-of-the-art performance of 84.2 F1 for automatic paraphrase identification. Furthermore, our empirical results also demonstrate that the paraphrase generation models trained on MultiPIT_Auto generate more diverse and high-quality paraphrases compared to their counterparts fine-tuned on other corpora such as Quora, MSCOCO, and ParaNMT.
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Controllable Text Generation (CTG) is emerging area in the field of natural language generation (NLG). It is regarded as crucial for the development of advanced text generation technologies that are more natural and better meet the specific constraints in practical applications. In recent years, methods using large-scale pre-trained language models (PLMs), in particular the widely used transformer-based PLMs, have become a new paradigm of NLG, allowing generation of more diverse and fluent text. However, due to the lower level of interpretability of deep neural networks, the controllability of these methods need to be guaranteed. To this end, controllable text generation using transformer-based PLMs has become a rapidly growing yet challenging new research hotspot. A diverse range of approaches have emerged in the recent 3-4 years, targeting different CTG tasks which may require different types of controlled constraints. In this paper, we present a systematic critical review on the common tasks, main approaches and evaluation methods in this area. Finally, we discuss the challenges that the field is facing, and put forward various promising future directions. To the best of our knowledge, this is the first survey paper to summarize CTG techniques from the perspective of PLMs. We hope it can help researchers in related fields to quickly track the academic frontier, providing them with a landscape of the area and a roadmap for future research.
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大型语言模型越来越能够通过相对较少的特定任务的监督产生流畅的出现文本。但这些模型可以准确解释分类决策吗?我们考虑使用少量人写的例子(即,以几滴方式)生成自由文本解释的任务。我们发现(1)创作更高质量的例子,以提示导致更高质量的世代; (2)令人惊讶的是,在头到头比较中,人群公司通常更喜欢GPT-3生成的解释,以众包中包含的人性写入的解释。然而,Crowdworker评级也表明,虽然模型产生了事实,语法和充分的解释,但它们具有改进的空间,例如沿着提供新颖信息和支持标签的轴。我们创建了一种管道,该管道将GPT-3与监督过滤器结合起来,该过滤器通过二进制可接受性判断来包含人类循环。尽管具有重要的主观性内在的判断可接受性,但我们的方法能够始终如一地过滤人类可接受的GPT-3生成的解释。
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As large language models (LLMs) grow larger and more sophisticated, assessing their "reasoning" capabilities in natural language grows more challenging. Recent question answering (QA) benchmarks that attempt to assess reasoning are often limited by a narrow scope of covered situations and subject matters. We introduce WikiWhy, a QA dataset built around a novel auxiliary task: explaining why an answer is true in natural language. WikiWhy contains over 9,000 "why" question-answer-rationale triples, grounded on Wikipedia facts across a diverse set of topics. Each rationale is a set of supporting statements connecting the question to the answer. WikiWhy serves as a benchmark for the reasoning capabilities of LLMs because it demands rigorous explicit rationales for each answer to demonstrate the acquisition of implicit commonsense knowledge, which is unlikely to be easily memorized. GPT-3 baselines achieve only 38.7% human-evaluated correctness in the end-to-end answer & explain condition, leaving significant room for future improvements.
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有毒语言检测系统通常会错误地将包含少数群体群体提及的毒性的错误标记文本,因为这些群体通常是在线仇恨的目标。这种对虚假相关性的过度依赖也导致系统在检测隐式有毒语言方面挣扎。为了帮助缓解这些问题,我们创建了Toxigen,这是一个新的大规模和机器生成的数据集,该数据集是274K有毒和良性陈述,约有13个少数群体。我们开发了一个基于示范的提示框架和一种对抗性分类器的解码方法,以使用大量预处理的语言模型生成微妙的有毒和良性文本。以这种方式控制机器的生成使毒素可以比以前的人写文本的资源更大的规模和大约人口组覆盖隐式有毒文本。我们对毒素的一个充满挑战的子集进行人体评估,发现注释者难以区分机器生成的文本和人类写的语言。我们还发现,94.5%的有毒例子被人类注释者标记为仇恨言论。我们使用三个公开可用的数据集,我们表明,对我们的数据进行毒性分类器的填充可以大大提高其在人体编写数据上的性能。我们还证明,毒素可用于抵抗机器生成的毒性,因为鉴定在我们的评估子集中大大改善了分类器。我们的代码和数据可以在https://github.com/microsoft/toxigen上找到。
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Knowledge about outcomes is critical for complex event understanding but is hard to acquire. We show that by pre-identifying a participant in a complex event, crowd workers are able to (1) infer the collective impact of salient events that make up the situation, (2) annotate the volitional engagement of participants in causing the situation, and (3) ground the outcome of the situation in state changes of the participants. By creating a multi-step interface and a careful quality control strategy, we collect a high quality annotated dataset of 8K short newswire narratives and ROCStories with high inter-annotator agreement (0.74-0.96 weighted Fleiss Kappa). Our dataset, POQue (Participant Outcome Questions), enables the exploration and development of models that address multiple aspects of semantic understanding. Experimentally, we show that current language models lag behind human performance in subtle ways through our task formulations that target abstract and specific comprehension of a complex event, its outcome, and a participant's influence over the event culmination.
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Human evaluation is the foundation upon which the evaluation of both summarization systems and automatic metrics rests. However, existing human evaluation protocols and benchmarks for summarization either exhibit low inter-annotator agreement or lack the scale needed to draw statistically significant conclusions, and an in-depth analysis of human evaluation is lacking. In this work, we address the shortcomings of existing summarization evaluation along the following axes: 1) We propose a modified summarization salience protocol, Atomic Content Units (ACUs), which relies on fine-grained semantic units and allows for high inter-annotator agreement. 2) We curate the Robust Summarization Evaluation (RoSE) benchmark, a large human evaluation dataset consisting of over 22k summary-level annotations over state-of-the-art systems on three datasets. 3) We compare our ACU protocol with three other human evaluation protocols, underscoring potential confounding factors in evaluation setups. 4) We evaluate existing automatic metrics using the collected human annotations across evaluation protocols and demonstrate how our benchmark leads to more statistically stable and significant results. Furthermore, our findings have important implications for evaluating large language models (LLMs), as we show that LLMs adjusted by human feedback (e.g., GPT-3.5) may overfit unconstrained human evaluation, which is affected by the annotators' prior, input-agnostic preferences, calling for more robust, targeted evaluation methods.
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Stack Overflow是最受欢迎的编程社区之一,开发人员可以为他们遇到的问题寻求帮助。然而,如果没有经验的开发人员无法清楚地描述他们的问题,那么他们很难吸引足够的关注并获得预期的答案。我们提出了M $ _3 $ NSCT5,这是一种自动从给定代码片段生成多个帖子标题的新颖方法。开发人员可以使用生成的标题查找密切相关的帖子并完成其问题描述。 M $ _3 $ NSCT5使用Codet5骨干,这是一种具有出色语言理解和发电能力的预训练的变压器模型。为了减轻歧义问题,即在不同背景下可以将相同的代码片段与不同的标题保持一致,我们提出了最大的边缘多元核抽样策略,以一次产生多个高质量和不同的标题候选者,以便开发人员选择。我们构建了一个大规模数据集,其中包含890,000个问题帖子,其中涵盖了八种编程语言,以验证M $ _3 $ NSCT5的有效性。 BLEU和胭脂指标的自动评估结果表明,M $ _3 $ NSCT5的优势比六个最先进的基线模型。此外,具有值得信赖结果的人类评估也证明了我们对现实世界应用方法的巨大潜力。
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Large language models show improved downstream task performance when prompted to generate step-by-step reasoning to justify their final answers. These reasoning steps greatly improve model interpretability and verification, but objectively studying their correctness (independent of the final answer) is difficult without reliable methods for automatic evaluation. We simply do not know how often the stated reasoning steps actually support the final end task predictions. In this work, we present ROSCOE, a suite of interpretable, unsupervised automatic scores that improve and extend previous text generation evaluation metrics. To evaluate ROSCOE against baseline metrics, we design a typology of reasoning errors and collect synthetic and human evaluation scores on commonly used reasoning datasets. In contrast with existing metrics, ROSCOE can measure semantic consistency, logicality, informativeness, fluency, and factuality - among other traits - by leveraging properties of step-by-step rationales. We empirically verify the strength of our metrics on five human annotated and six programmatically perturbed diagnostics datasets - covering a diverse set of tasks that require reasoning skills and show that ROSCOE can consistently outperform baseline metrics.
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近年来带来了对自然语言理解领域的勤义代表和推理的重新兴趣。新的致辞知识图表(CSKG)的发展是这些进步的核心,因为他们的不同事实可以通过机器学习模型来解决新的和具有挑战性的任务。与此同时,由于全面地涵盖了一般勤杂朗知识所需的大规模规模,对这些资源的质量和覆盖率仍存在疑问。在这项工作中,我们将手动构建的CSKGS分配在NLP代理商遇到的所有情况下,我们将永远不会实现适用所需的覆盖范围。因此,我们提出了一种新的评估框架,用于测试KGS的效用,基于如何从中学习有效的隐式知识表示。通过这一新目标,我们提出了一个含有知识的全新CSKG的新CSKG,该知识不容易获得预用的语言模型。我们与其他领先的CSKG相比,评估其属性,表现了对勤杂朗语言知识资源的第一个大规模对研究。接下来,我们显示原子2020更适合培训知识模型,可以为新的,看不见的实体和事件产生准确,代表知识。最后,通过人类评估,我们表明,尽管使用超过430倍的参数,但GPT-3(175B参数)的几次射击性能较低,而令人印象深刻,令人印象深刻,令人印象深刻,令人印象深刻,仍然低于原子型2020的巴特的知识模型。
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Knowledge-grounded dialogue systems powered by large language models often generate responses that, while fluent, are not attributable to a relevant source of information. Progress towards models that do not exhibit this issue requires evaluation metrics that can quantify its prevalence. To this end, we introduce the Benchmark for Evaluation of Grounded INteraction (BEGIN), comprised of 12k dialogue turns generated by neural dialogue systems trained on three knowledgegrounded dialogue corpora. We collect human annotations assessing the extent to which the models' responses can be attributed to the given background information. We then use BEGIN to analyze eight evaluation metrics. We find that these metrics rely on spurious correlations, do not reliably distinguish attributable abstractive responses from unattributable ones, and perform substantially worse when the knowledge source is longer. Our findings underscore the need for more sophisticated and robust evaluation metrics for knowledge-grounded dialogue. We make BEGIN publicly available at https://github.com/ google/BEGIN-dataset.
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诸如学术文章和商业报告之类的长期文件一直是详细说明重要问题和需要额外关注的复杂主题的标准格式。自动汇总系统可以有效地将长文档置于简短而简洁的文本中,以封装最重要的信息,从而在帮助读者的理解中很重要。最近,随着神经体系结构的出现,已经做出了重大的研究工作,以推动自动文本摘要系统,以及有关将这些系统扩展到长期文档领域的挑战的大量研究。在这项调查中,我们提供了有关长期文档摘要的研究的全面概述,以及其研究环境的三个主要组成部分的系统评估:基准数据集,汇总模型和评估指标。对于每个组成部分,我们在长期汇总的背景下组织文献,并进行经验分析,以扩大有关当前研究进度的观点。实证分析包括一项研究基准数据集的内在特征,摘要模型的多维分析以及摘要评估指标的综述。根据总体发现,我们通过提出可能在这个快速增长的领域中提出未来探索的方向来得出结论。
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定义生成任务旨在自动在特定上下文中生成一个单词的定义。但是,由于缺乏针对不同复杂性的数据集,模型产生的定义往往会保持相同的复杂度。本文提出了为具有可控复杂性级别的单词生成定义的新任务。相应地,我们介绍了编译,一个数据集给出了有关中国定义的详细信息,并且每个定义都标有其复杂性级别。编译数据集包括74,303个单词和106,882个定义。据我们所知,它是中国定义生成任务的最大数据集。我们选择各种代表性生成方法作为此任务的基准和进行评估,这说明我们的数据集在协助模型生成不同的复杂性级别定义方面发挥了出色的作用。我们认为,编译数据集将使复杂性可控定义生成的进一步研究受益。
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预测任务标签和为其预测生成自由文本阐述的自律化模型可以实现与NLP系统更直观的交互。然而,这些模型目前正在接受大量人为的自由文本解释,每个任务都会阻碍更广泛的使用。我们建议使用少数培训例子研究更现实的自律化建立。我们出示2月 - 一个标准化的四个现有英语数据集和相关指标。我们通过2月份广泛探索自然语言提示来确定正确的提示方法。然后,通过使用此提示并缩放模型大小,我们证明了几次拍摄自合合理化的进展。我们展示了这项任务的完善房间仍然有充足的改进空间:人类注册人评估的生成解释的平均合理性最多为51%,而人类解释的合理性是76%。我们希望2月份与我们的拟议方法一起促使社区承担几次拍摄的自我合理化挑战。
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Explainable AI (XAI) is widely viewed as a sine qua non for ever-expanding AI research. A better understanding of the needs of XAI users, as well as human-centered evaluations of explainable models are both a necessity and a challenge. In this paper, we explore how HCI and AI researchers conduct user studies in XAI applications based on a systematic literature review. After identifying and thoroughly analyzing 85 core papers with human-based XAI evaluations over the past five years, we categorize them along the measured characteristics of explanatory methods, namely trust, understanding, fairness, usability, and human-AI team performance. Our research shows that XAI is spreading more rapidly in certain application domains, such as recommender systems than in others, but that user evaluations are still rather sparse and incorporate hardly any insights from cognitive or social sciences. Based on a comprehensive discussion of best practices, i.e., common models, design choices, and measures in user studies, we propose practical guidelines on designing and conducting user studies for XAI researchers and practitioners. Lastly, this survey also highlights several open research directions, particularly linking psychological science and human-centered XAI.
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随着推荐系统变得越来越复杂和复杂,它们通常会缺乏公平和透明度。为建议提供强大而公正的解释,人们越来越关注,因为它可以帮助解决这些问题并提高推荐系统的信任度和信息性。然而,尽管事实是为人类生成了这种解释,这些人类对具有适当情绪的信息做出更强烈反应,但在为建议解释时,人们缺乏对情绪的考虑。发现当前的解释生成模型可以夸大某些情绪,而无需准确捕获基本的语调或含义。在本文中,我们提出了一种基于多头变压器的新方法,称为“情感感知变压器”,以解释推荐(情感者),以产生更健壮,公平和情感增强的解释。为了衡量产生的解释的语言质量和情感公平性,我们采用自动文本指标和人类的看法进行评估。在具有多个评估指标的三个广泛使用基准数据集上进行的实验表明,情感者在文本质量,解释性和对情感分布的公平性方面始终优于现有的最新解释生成模型。 Emoter的实施将作为开源工具包发布,以支持进一步的研究。
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