Your best option right now would be to run a scheduled class that periodically check your batches (AsyncApexJob) for any jobs that meet that certain type of error message, and send a notification about the failures. You'll want to keep track of which notifications you've already sent out, since you can't simply "delete" the failed operations or affect their status in any way. Any time we see an error with a ORA code is an internal bug that somehow floated past the layers of code designed to catch those errors.

Notification from timed-out batch query?
I am using Chebychev window for its narrow main lobe. The problem of chebychev window is that it has discontinuities at the edge, and it seems that Taylor window solves this issue. 

More detail:
http://de.mathworks.com/help/signal/ref/taylorwin.html
http://en.wikipedia.org/wiki/Window_function#Dolph.E2.80.93Chebyshev_window

I've searched around but I can't find any information on how to implement a Taylor window. Any information on taylor window or suggestions on fixing this issue of edge discontinuities would be very appreciated.
