eprintid: 2595
rev_number: 11
eprint_status: archive
userid: 17
dir: disk0/00/00/25/95
datestamp: 2017-10-30 08:12:03
lastmod: 2017-12-12 08:21:31
status_changed: 2017-10-30 08:12:03
type: conference_item
metadata_visibility: show
creators_name: Le, Trung Thanh
creators_name: Nguyen, Thi Anh Dao
creators_name: Nguyen, Linh Trung
creators_name: Le, Vu Ha
creators_id: letrungthanhtbt@gmail.com
creators_id: daonta81@gmail.com
creators_id: linhtrung@vnu.edu.vn
creators_id: halv@vnu.edu.vn
title: On the overall ROC of multistage systems
ispublished: pub
subjects: ECE
divisions: fac_fet
abstract: The receiver operating characteristic (ROC) curve is a useful tool to evaluate the performance of classifiers, and is widely used in signal detection, pattern recognition and machine learning. For complex object classification,  multiple single classifiers are often used and they are concatenated into a multistage classification system. Thus, it is necessary to obtain the overal ROC curve, because the ROC curves of the individual classifiers are not useful for the overall system since it has multi-level decision thresholds. In this paper, a systematic approach was introduced for measuring the performance of multistage systems via estimating the overall ROC curve. Two new ROC models sharing the same properties of classical ROC curves were proposed, inspired by the Gaussian and logistic distributions. The models were then experimented on a recently introduced multistage system for epileptic spike classification from electroencephalogram data. Experimental results indicated that the proposed ROC models can be used for multistage classification systems.
date: 2017-10-18
date_type: published
contact_email: linhtrung@vnu.edu.vn
full_text_status: public
pres_type: paper
event_title: 2017 International Conference on Advanced Technologies for Communications (ATC)
event_location: Quy Nhon, Viet Nam
event_dates: 18-20 October 2017
event_type: conference
refereed: TRUE
citation:   Le, Trung Thanh and Nguyen, Thi Anh Dao and Nguyen, Linh Trung and Le, Vu Ha  (2017) On the overall ROC of multistage systems.  In: 2017 International Conference on Advanced Technologies for Communications (ATC), 18-20 October 2017, Quy Nhon, Viet Nam.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2595/1/1570379504.pdf