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- W2803342275 abstract "A non-vector-based dissimilarity measure is proposed by combining vector-based distance metrics and set operations. This proposed compound dissimilarity measure (CDM) is applicable to quantify similarity of collections of attribute/feature pairs where not all attributes are present in all collections. This is a typical challenge in the context of e.g., fingerprinting-based positioning (FbP). Compared to vector-based distance metrics (e.g., Minkowski), the merits of the proposed CDM are i) the data do not need to be converted to vectors of equal dimension, ii) shared and unshared attributes can be weighted differently within the assessment, and iii) additional degrees of freedom within the measure allow to adapt its properties to application needs in a data-driven way. We indicate the validity of the proposed CDM by demonstrating the improvements of the positioning performance of fingerprinting-based WLAN indoor positioning using four different datasets, three of them publicly available. When processing these datasets using CDM instead of conventional distance metrics the accuracy of identifying buildings and floors improves by about 5% on average. The 2d positioning errors in terms of root mean squared error (RMSE) are reduced by a factor of two, and the percentage of position solutions with less than 2m error improves by over 10%." @default.
- W2803342275 created "2018-06-01" @default.
- W2803342275 creator A5034901004 @default.
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- W2803342275 date "2018-05-16" @default.
- W2803342275 modified "2023-09-24" @default.
- W2803342275 title "CDM: Compound dissimilarity measure and an application to fingerprinting-based positioning" @default.
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- W2803342275 doi "https://doi.org/10.48550/arxiv.1805.06208" @default.
- W2803342275 hasPublicationYear "2018" @default.
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