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arXiv 2402.01252cs.LG
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目标归纳方法用于零样本回归

Target inductive methods for zero-shot regression

ArcelorMittal(安赛乐米塔尔);University of Oviedo(奥维耶多大学);Artificial Intelligence Center(人工智能中心)

Miriam Fdez-Díaz, José Ramón Quevedo, Elena Montañés

AI总结:

本文针对气象站污染物预测的零样本回归问题,提出基于相似性聚合和参数学习两种方法,后者通过学习辅助信息与特征模型对应关系,在多个数据集上优于基线。

摘要:

这项研究源于预测气象站空气污染物数量的需求。空气污染取决于站点位置(天气条件和周围活动)。通常,周围信息在学习过程中不被考虑。这些信息在缺乏未观测天气条件的情况下事先已知,并且对于同一站点保持不变。将周围信息视为辅助信息有助于推广到新站点的污染物预测,从而形成零样本回归场景。现有的零样本方法通常偏向分类,且不易扩展到回归。本文提出了两种用于回归的零样本方法。第一种方法是一种基于相似性的方法,从特征中学习模型并使用辅助信息进行聚合。然而,特征模型的潜在知识可能在聚合过程中丢失。第二种方法通过替换聚合过程,转而学习辅助信息与特征诱导模型之间的对应关系,从而克服了这一缺点。两种提议均与基线程序在人工数据集、UCI存储库社区和犯罪数据集以及污染物数据上进行了比较。两种方法均优于基线方法,但参数学习方法显示出其优于基于相似性方法的优越性。

英文摘要:

This research arises from the need to predict the amount of air pollutants in meteorological stations. Air pollution depends on the location of the stations (weather conditions and activities in the surroundings). Frequently, the surrounding information is not considered in the learning process. This information is known beforehand in the absence of unobserved weather conditions and remains constant for the same station. Considering the surrounding information as side information facilitates the generalization for predicting pollutants in new stations, leading to a zero-shot regression scenario. Available methods in zero-shot typically lean towards classification, and are not easily extensible to regression. This paper proposes two zero-shot methods for regression. The first method is a similarity based approach that learns models from features and aggregates them using side information. However, potential knowledge of the feature models may be lost in the aggregation. The second method overcomes this drawback by replacing the aggregation procedure and learning the correspondence between side information and feature-induced models, instead. Both proposals are compared with a baseline procedure using artificial datasets, UCI repository communities and crime datasets, and the pollutants. Both approaches outperform the baseline method, but the parameter learning approach manifests its superiority over the similarity based method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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