Active Learning in the Era of Big Data

Technical Report · Thu Oct 01 04:00:00 UTC 2015

DOI:https://doi.org/10.2172/1225849· OSTI ID:1225849

Jamieson, Kevin ^[1]; Davis, IV, Warren L. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Active learning methods automatically adapt data collection by selecting the most informative samples in order to accelerate machine learning. Because of this, real-world testing and comparing active learning algorithms requires collecting new datasets (adaptively), rather than simply applying algorithms to benchmark datasets, as is the norm in (passive) machine learning research. To facilitate the development, testing and deployment of active learning for real applications, we have built an open-source software system for large-scale active learning research and experimentation. The system, called NEXT, provides a unique platform for realworld, reproducible active learning research. This paper details the challenges of building the system and demonstrates its capabilities with several experiments. The results show how experimentation can help expose strengths and weaknesses of active learning algorithms, in sometimes unexpected and enlightening ways.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1225849
• Report Number(s): SAND2015--9475R; 607873
• Country of Publication: United States
• Language: English