Automated machine learning (AutoML) algorithms have grown in popularity due to their high performance and flexibility to adapt to different problems and data sets. With the increasing number of AutoML algorithms, deciding which would best suit a given problem becomes increasingly more work. Therefore, it is essential to use complex and challenging benchmarks which would be able to differentiate the AutoML algorithms from each other. This paper compares the performance of four different AutoML algorithms: Tree-based Pipeline Optimization Tool (TPOT), Auto-Sklearn, Auto-Sklearn 2, and H2O AutoML. We use the Diverse and Generative ML benchmark (DIGEN), a diverse set of synthetic datasets derived from generative functions designed to highlight the strengths and weaknesses of the performance of common machine learning algorithms. We confirm that AutoML can identify pipelines that perform well on all included datasets. Most AutoML algorithms performed similarly without much room for improvement; however, some were more consistent than others at finding high-performing solutions for some datasets.
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Evaluating new techniques on realistic datasets plays a crucial role in the development of ML research and its broader adoption by practitioners. In recent years, there has been a significant increase of publicly available unstructured data resources for computer vision and NLP tasks. However, tabular data -- which is prevalent in many high-stakes domains -- has been lagging behind. To bridge this gap, we present Bank Account Fraud (BAF), the first publicly available privacy-preserving, large-scale, realistic suite of tabular datasets. The suite was generated by applying state-of-the-art tabular data generation techniques on an anonymized,real-world bank account opening fraud detection dataset. This setting carries a set of challenges that are commonplace in real-world applications, including temporal dynamics and significant class imbalance. Additionally, to allow practitioners to stress test both performance and fairness of ML methods, each dataset variant of BAF contains specific types of data bias. With this resource, we aim to provide the research community with a more realistic, complete, and robust test bed to evaluate novel and existing methods.
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Large language models (LLMs) have been shown to be able to perform new tasks based on a few demonstrations or natural language instructions. While these capabilities have led to widespread adoption, most LLMs are developed by resource-rich organizations and are frequently kept from the public. As a step towards democratizing this powerful technology, we present BLOOM, a 176B-parameter open-access language model designed and built thanks to a collaboration of hundreds of researchers. BLOOM is a decoder-only Transformer language model that was trained on the ROOTS corpus, a dataset comprising hundreds of sources in 46 natural and 13 programming languages (59 in total). We find that BLOOM achieves competitive performance on a wide variety of benchmarks, with stronger results after undergoing multitask prompted finetuning. To facilitate future research and applications using LLMs, we publicly release our models and code under the Responsible AI License.
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能够分析和量化人体或行为特征的系统（称为生物识别系统）正在使用和应用变异性增长。由于其从手工制作的功能和传统的机器学习转变为深度学习和自动特征提取，因此生物识别系统的性能增加到了出色的价值。尽管如此，这种快速进步的成本仍然尚不清楚。由于其不透明度，深层神经网络很难理解和分析，因此，由错误动机动机动机的隐藏能力或决定是潜在的风险。研究人员已经开始将注意力集中在理解深度神经网络及其预测的解释上。在本文中，我们根据47篇论文的研究提供了可解释生物识别技术的当前状态，并全面讨论了该领域的发展方向。
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这项工作总结了2022年2022年国际生物识别联合会议（IJCB 2022）的IJCB被遮挡的面部识别竞赛（IJCB-OCFR-2022）。OCFR-2022从学术界吸引了总共3支参与的团队。最终，提交了六个有效的意见书，然后由组织者评估。在严重的面部阻塞面前，举行了竞争是为了应对面部识别的挑战。参与者可以自由使用任何培训数据，并且通过使用众所周知的数据集构成面部图像的部分来构建测试数据。提交的解决方案提出了创新，并以所考虑的基线表现出色。这项竞争的主要输出是具有挑战性，现实，多样化且公开可用的遮挡面部识别基准，并具有明确的评估协议。
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该论文描述了铁路数据集，这是葡萄牙波尔图市的城市地铁公共交通服务的预测维护项目的结果。数据是在2020年至2022年之间收集的，旨在开发用于在线异常检测和故障预测的机器学习方法。通过捕获几个类似的传感器信号（压力，温度，电流消耗），数字信号（控制信号，离散信号）和GPS信息（纬度，经度和速度），我们提供了一个框架，可以轻松使用和开发用于该框架新的机器学习方法。我们认为该数据集包含一些有趣的特征，并且可以成为预测维护模型的良好基准。
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癌症是一种复杂的疾病，具有重大的社会和经济影响。高通量分子测定的进步以及进行高质量多摩斯测量的成本降低，通过机器学习促进了见解。先前的研究表明，使用多个OMIC预测生存和分层癌症患者的希望。在本文中，我们开发了一种有监督的自动编码器（SAE）模型，用于基于生存的多摩变集成，该模型在以前的工作中改进，并报告一种具体的监督自动编码器模型（CSAE），该模型（CSAE）也使用功能选择来共同重建输入功能。作为预测生存。我们的实验表明，我们的模型表现优于或与一些最常用的基线相提并论，同时提供更好的生存分离（SAE）或更容易解释（CSAE）。我们还对我们的模型进行了特征选择稳定性分析，并注意到与通常与生存有关的特征存在幂律关系。该项目的代码可在以下网址获得：https：//github.com/phcavelar/coxae
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Semi-parametric models, which augment generation with retrieval, have led to impressive results in language modeling and machine translation, due to their ability to retrieve fine-grained information from a datastore of examples. One of the most prominent approaches, $k$NN-MT, exhibits strong domain adaptation capabilities by retrieving tokens from domain-specific datastores \citep{khandelwal2020nearest}. However, $k$NN-MT requires an expensive retrieval operation for every single generated token, leading to a very low decoding speed (around 8 times slower than a parametric model). In this paper, we introduce a \textit{chunk-based} $k$NN-MT model which retrieves chunks of tokens from the datastore, instead of a single token. We propose several strategies for incorporating the retrieved chunks into the generation process, and for selecting the steps at which the model needs to search for neighbors in the datastore. Experiments on machine translation in two settings, static and ``on-the-fly'' domain adaptation, show that the chunk-based $k$NN-MT model leads to significant speed-ups (up to 4 times) with only a small drop in translation quality.
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压力溃疡在ICU患者中具有很高的患病率，但如果以初始阶段识别，则可预防。在实践中，布拉登规模用于分类高风险患者。本文通过使用MIMIC-III V1.4中可用的数据调查了在电子健康中使用机器学习记录数据的使用。制定了两个主要贡献：评估考虑在住宿期间所有预测的模型的新方法，以及用于机器学习模型的新培训方法。结果与现有技术相比，表现出卓越的性能;此外，所有型号在精密召回曲线中的每个工作点都超过了Braden刻度。 - - les \〜oes por按\〜ao possuem alta preval \ ^ encia em pacientes de Uti e s \〜ao preven \'iveis ao serem endicidificadas em Est \'agios Iniciais。 na pr \'atica materiza-se a escala de braden para classifica \ c {c} \〜ao de pacientes em risco。 Este Artigo Investiga o Uso de Apenizado de M \'Aquina Em Dados de Registros Eletr \ ^ Onicos Para Este Fim，Parir Da Base dados Mimic-III V1.4。 s \〜ao feitas duas contribui \ c {c} \〜oes principais：uma nova abordagem para a avalia \ c {c} \〜ao dos modelos e da escala da escala de braden levando em conta todas作为predi \ c {c} \ 〜oes feitas ao longo das interna \ c {c} \〜oes，euro novo m \'etodo de treinamento para os modelos de aprendizo de m \'aquina。 os结果os overidos superam o estado da arte everifica-se que os modelos superam意义a escala de braden em todos oS pontos de Opera \ c {c} \〜〜ao da curva de precis \〜ao por sensibilidade。
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作为工业机器人的一般趋势，正在开发或重新设计的安全功能越来越多的安全功能，而不是通过安全继电器或互锁电路等物理硬件处理。这一趋势强化了补充基于传统，基于输入的测试和质量手术的重要性，这些测试和质量程序在今天广泛应用于行业，具有正式的验证和模型检查方法。为此，本文侧重于ABB工业涂料机器人中的代表性安全关键系统，即高压静电控制系统（HVC）。 HVC产生的高压的实际收敛性，对于安全操作必不可少，使用新颖的和一般共同验证框架正式验证，其中硬件和软件模型通过平台映射相关。这种方法使得具有高度多样化和专业的工具的务实组合。本文的主要贡献包括有关如何在工具之间传输硬件抽象和验证结果的详细信息，以便验证系统级安全性。值得注意的是，本文中考虑的HVC应用程序具有相当通用的反馈控制器形式。因此，这里报告的共同验证框架和经验对跟踪设定值引用的任何网络物理系统也非常相关。
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