mit text optimization angefangen. aber nerv am ruecken eingeklemmt. aua.
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@@ -42,6 +42,16 @@ Within all Wi-Fi observations, we only consider the beacons, which are identifie
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Other transmitters like smart TVs or smartphone hotspots are ignored as they might cause estimation errors.
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Fig. compares optimized ap vs real positions for the ground level, thus we only illustrated optimized ap', which are really installed there. red created using the global optimization scheme, blue a optimized only for the rechteckigen ground floor.
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of course, the position alone does not provide sufficient information of the overall perfomance of the optimiziation since they give no information about the other optimized parameters (bla, blub and bliib).
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Nevertheless, fig. \ref{} gives an idea on how optimizing a simplified signal-strength prediction model behaves.
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By only considering ceillings, the attenuation factore... and thus most z coordinates for the ap's are similiar.
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The main message from this is, that wherever the ap's are optimized they are optimized to perfectly fit the underlying signal-strength model.
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thus the optimized parameters provide far better localization results compared to just using the real ones. simply because modelling the realistic incidents is very time consuming.
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difference stockwerk, global
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looking at the optimziation errors, this can be varified... etc pp
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%wie fingerprints aufgenommen, wie viele ...
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\todo{Vom Journal Paper 2017 noch diese rote optimierungsgrafik. fig 5. Das wäre eigentlich auch echt nicht schlecht. und dazu auch die werte "results from the
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