added notes

tex_review/review/01_review.txt

@@ -14,6 +14,11 @@ The paper presents a smartphone-based localization system using a particle filte
 -> Thank you very much for pointing this out. Your concerns are valid. This was a misformulation within the introduction of the paper. We have improved the relevant section of the text and made the basic statement clearer. Please refer to line xxx and xxx.
 
 5. The author mention that "Such buildings are often full of nooks and crannies, what makes it hard for dynamical models using any kind of pedestrian dead reckoning (PDR)","the error accumulates not only over time, but also with the number of turns and steps made". So "Thus, this paper presents a robust but realistic movement model using a three-dimensional navigation mesh based on triangles". However, Why does the three-dimensional navigation mesh can deal with the turns and steps error? The author should give the more detail description. The navigation graph uses 30*30 grid-cell, the navigation mesh uses triangles. But I don't find very clear that how does the triangles plan? More triangles can improve the accuracy or not? Why the the ground floor need 320 triangles? This the minimum?
+@Frank besser beschreiben?
+alles wird mit so wenigen 3-ecken wie möglich abgedeckt. hängt von der architektur ab
+leerer raum = 2 3-ecke. je nach hindernissen wird es mehr
+die anzahl der 3-ecke ist NICHT variabel sondern wird vom algorithmus bestimmt
+320 kam halt bei raus
 
 6. The authors emphasize that "The goal of this work is to propose a fast to deploy and low-cost localization solution, that provides reasonable results in a high variety of situations". But for the 2500m2 building they used 42 WiFi beacon. I don't think the number is few. Is the whole 42 beacon necessary? The author should discuss the impact of the number of WiFi beacon. How many are the reference poits? What's the impact of the density of the reference points? If the authors want to emphasizen the fast deploy and low-cost, they should give more detail discussion, also the "high variety".
 -> 2500m2 sind nur die bereiche in denen gelaufen werden kann. ohne den innenhof. die zahl ist also etwas verwirrend...