With a view to validating the core contribution to???? this research, functional and practical biometric data was collected in a transparent and unconstrained way. The transparent sample collection, however, produced a more variable feature vector, thus complicating that with which bio-cryptography is always struggling to cope. Hmm. Too wordy. Simplify - it just sounds as though you have no idea what you are talking about. In English, we use simple, short sentences to convey complex arguments. It shows erudition to hold back on wordiness.

With a view to validate the core contribution of this research, functional and practical biometric data collected in a transparent and unconstrained way was required. The transparent sample collection, however, will produce a more variable feature vector thus complicating the same problematic issue of which bio-cryptography is always struggling to cope with. The only problem was validating it would not make sense in this case Keep learning!