<entry key='geocoder.reuseDistance'>20</entry>
<entry key='filter.enable'>true</entry>
<entry key='filter.duplicate'>true</entry>
<entry key='coordinates.filter'>true</entry>
<entry key='coordinates.minError'>50</entry>
<entry key='filter.distance'>20</entry>

Distance filter should work. You just need to play around with the threshold.
Thank you very much. I will try today
<entry key='geocoder.reuseDistance'>20</entry> <entry key='filter.enable'>true</entry> <entry key='filter.duplicate'>true</entry> <entry key='coordinates.filter'>true</entry> <entry key='coordinates.minError'>50</entry> <entry key='filter.distance'>20</entry>