An empirical study on the properties of random bases for kernel methods

Maximilian Alber, Pieter Jan Kindermans, Kristof T. Schütt, Klaus Robert Müller, Fei Sha

    Research output: Contribution to journalConference articlepeer-review

    6 Citations (Scopus)

    Abstract

    Kernel machines as well as neural networks possess universal function approximation properties. Nevertheless in practice their ways of choosing the appropriate function class differ. Specifically neural networks learn a representation by adapting their basis functions to the data and the task at hand, while kernel methods typically use a basis that is not adapted during training. In this work, we contrast random features of approximated kernel machines with learned features of neural networks. Our analysis reveals how these random and adaptive basis functions affect the quality of learning. Furthermore, we present basis adaptation schemes that allow for a more compact representation, while retaining the generalization properties of kernel machines.

    Original languageEnglish
    Pages (from-to)2764-2775
    Number of pages12
    JournalAdvances in Neural Information Processing Systems
    Volume2017-December
    Publication statusPublished - 2017
    Event31st Annual Conference on Neural Information Processing Systems, NIPS 2017 - Long Beach, United States
    Duration: 2017 Dec 42017 Dec 9

    Bibliographical note

    Funding Information:
    MA, KS, KRM, and FS acknowledge support by the Federal Ministry of Education and Research (BMBF) under 01IS14013A. PJK has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement NO 657679. KRM further acknowledges partial funding by the Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korea government (No. 2017-0-00451), BK21 and by DFG. FS is partially supported by NSF IIS-1065243, 1451412, 1513966/1632803, 1208500, CCF-1139148, a Google Research Award, an Alfred. P. Sloan Research Fellowship and ARO# W911NF-12-1-0241 and W911NF-15-1-0484. This work was supported by NVIDIA with a hardware donation.

    Publisher Copyright:
    © 2017 Neural information processing systems foundation. All rights reserved.

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Information Systems
    • Signal Processing

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