title: Application of support vector machine to rapid classification of uranium waste drums using low-resolution γ-ray spectra.
abstract: We investigated the feasibility of using support vector machine (SVM), a computer learning method, to classify uranium waste drums as natural uranium or reprocessed uranium based on their origins. The method was trained using 12 training datasets were used and tested on 955 datasets of γ-ray spectra obtained with NaI(Tl) scintillation detectors. The results showed that only 4 out of 955 test datasets were different from the original labels-one of them was mislabeled and the other three were misclassified by SVM. These findings suggest that SVM is an effective method to classify a large quantity of data within a short period of time. Consequently, SVM is a feasible method for supporting the scaling factor method and as a supplemental tool to check original labels.
authors.affiliation: Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan; Graduate School of Natural Science and Technology, Okayama University, 3-1-1, Tsushima-naka kita-ku, Okayama 700-8530, Japan. Electronic address: hata.haruhi@s.okayama-u.ac.jp.
authors.forename: Haruhi
authors.initials: H
authors.lastname: Hata
authors.affiliation: Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan.
authors.forename: Kaoru
authors.initials: K
authors.lastname: Yokoyama
authors.affiliation: Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan.
authors.forename: Yuu
authors.initials: Y
authors.lastname: Ishimori
authors.affiliation: Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Ohara
authors.affiliation: Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Tanaka
authors.affiliation: Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 1550 Kamisaibara, Kagamino-cho, Tomata-gun, Okayama 708-0698, Japan.
authors.forename: Noritake
authors.initials: N
authors.lastname: Sugitsue
keywords: Support vector machine; Uranium waste; Uranium waste management; γ-Ray spectra