论文标题
迈向粗粒和细粒的多段多标签学习
Towards Coarse and Fine-grained Multi-Graph Multi-Label Learning
论文作者
论文摘要
多画像多标签学习(\ textsc {mgml})是一个有监督的学习框架,旨在从一组包含许多图形的标签袋中学习一个多标签分类器。 \ textsc {mgml}上的先前技术是基于将图形传输到实例中的,并专注于仅在袋子级别学习看不见的标签。在本文中,我们提出了一个\ textit {croun}和\ textit {fien-grained}多盖多标签(CFMGML)学习框架,该学习框架直接通过图形构建学习模型,并在\ textit {cooly}(aka aka ag bag)级别和findit级别上表现出标签的预测。特别是,给定一组标记的多毛牌袋,我们在图形和袋子级别上设计了评分功能,以使用特定的图形内核对标签和数据之间的相关性进行建模。同时,我们提出一个阈值排名损失目标函数,以对图形和袋子的标签进行排名,并同时将锤子损坏最小化,该标签一步一步,旨在解决传统的排名降低算法中的错误积累问题。为了解决非凸优化问题,我们进一步开发了一种有效的次级下降算法来处理CFMGML中所需的高维空间计算。各种现实世界数据集的实验证明了CFMGML比最新的ARTS算法实现了出色的性能。
Multi-graph multi-label learning (\textsc{Mgml}) is a supervised learning framework, which aims to learn a multi-label classifier from a set of labeled bags each containing a number of graphs. Prior techniques on the \textsc{Mgml} are developed based on transfering graphs into instances and focus on learning the unseen labels only at the bag level. In this paper, we propose a \textit{coarse} and \textit{fine-grained} Multi-graph Multi-label (cfMGML) learning framework which directly builds the learning model over the graphs and empowers the label prediction at both the \textit{coarse} (aka. bag) level and \textit{fine-grained} (aka. graph in each bag) level. In particular, given a set of labeled multi-graph bags, we design the scoring functions at both graph and bag levels to model the relevance between the label and data using specific graph kernels. Meanwhile, we propose a thresholding rank-loss objective function to rank the labels for the graphs and bags and minimize the hamming-loss simultaneously at one-step, which aims to addresses the error accumulation issue in traditional rank-loss algorithms. To tackle the non-convex optimization problem, we further develop an effective sub-gradient descent algorithm to handle high-dimensional space computation required in cfMGML. Experiments over various real-world datasets demonstrate cfMGML achieves superior performance than the state-of-arts algorithms.