{HEAD ~ The combination} of independently calculated common view and network based clock offsets can be a weighted average of the two values, involving {TAIL ~ respective weights} based on quality estimates of the latter 
{ HEAD ~ The combination } of independently calculated common view and network based clock offsets can be a weighted average of the two values , involving { TAIL ~ respective weights } based on quality estimates of the latter
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH