模式分析与应用(Pattern Analysis and Applications)杂志介绍了新模式分析技术以及工业和医学应用的原始研究。它详细介绍了模式识别和分析在应用领域的新技术和方法,包括计算机视觉和图像处理、语音分析、机器人技术、多媒体、文档分析、字符识别、模式识别知识工程、分形分析和智能控制。模式分析与应用(PAA)也检查了高级方法的使用,包括统计技术、神经网络、遗传算法、模糊模式识别、机器学习和硬件实现,这些都与模式分析作为一个研究领域的发展或新的模式分析应用的细节相关。 官网地址:http://dblp.uni-trier.de/db/journals/paa/

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Dimensionality reduction is a critical step in scaling machine learning pipelines. Principal component analysis (PCA) is a standard tool for dimensionality reduction, but performing PCA over a full dataset can be prohibitively expensive. As a result, theoretical work has studied the effectiveness of iterative, stochastic PCA methods that operate over data samples. However, termination conditions for stochastic PCA either execute for a predetermined number of iterations, or until convergence of the solution, frequently sampling too many or too few datapoints for end-to-end runtime improvements. We show how accounting for downstream analytics operations during DR via PCA allows stochastic methods to efficiently terminate after operating over small (e.g., 1%) subsamples of input data, reducing whole workload runtime. Leveraging this, we propose DROP, a DR optimizer that enables speedups of up to 5x over Singular-Value-Decomposition-based PCA techniques, and exceeds conventional approaches like FFT and PAA by up to 16x in end-to-end workloads.

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