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Determine the Number of Unknown Targets in Open World Based on Elbow Method

2020; Institute of Electrical and Electronics Engineers; Volume: 29; Issue: 5 Linguagem: Inglês

10.1109/tfuzz.2020.2966182

1941-0034

Fan Liu, Yong Deng,

Image Processing and 3D Reconstruction

Generalized evidence theory as an extension of Dempster-Shafer evidence theory can deal with uncertain information fusion in the open world. However, one of the open issues is to detect the number of unknown targets. In this article, a new method based on the elbow method is proposed to solve this problem. After the identification of the open world, K-means clustering is used to cluster categories. Then, the elbow method is used to find a correct number of unknown targets. The frame of discernment is reupdated. To test effectiveness of the proposed method, several experiments are conducted. The results illustrate the advantage of the proposed method in the open world.