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. Author manuscript; available in PMC: 2019 Oct 12.

Published in final edited form as: ACM Trans Knowl Discov Data. 2013 Sep;7(3):10.

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Fig. 10. — (left) Normally the LB_{_Keogh} envelope is built around the query (see also Figure 6(right), and the distance between C and the closer of {U, L}acts as a lower bound (right). However, we can reverse the roles such that the envelope is built around C and the distance between Q and the closer of {U, L} is the lower bound.