  The Indo-US coud\'{e} feed stellar spectral library (CFLIB) made available to
the astronomical community recently by Valdes et al. (2004) contains spectra of
1273 stars in the spectral region 3460 to 9464 \AA at a high resolution of 1
\AA FWHM and a wide range of spectral types. Cross-checking the reliability of
this database is an important and desirable exercise since a number of stars in
this database have no known spectral types and a considerable fraction of stars
has not so complete coverage in the full wavelength region of 3460-9464 \AA
resulting in gaps ranging from a few \AA to several tens of \AA. In this paper,
we use an automated classification scheme based on Artificial Neural Networks
(ANN) to classify all 1273 stars in the database. In addition, principal
component analysis (PCA) is carried out to reduce the dimensionality of the
data set before the spectra are classified by the ANN. Most importantly, we
have successfully demonstrated employment of a variation of the PCA technique
to restore the missing data in a sample of 300 stars out of the CFLIB.
