The phrase "are used as input" is grammatically correct and can be used in written English.
For example, "DNA sequences are used as input in genetic analysis."
The judgments are used as input to a Support Vector Machine method that learns an improved ranking function for retrieval.
Measured soil moistures and matric heads are used as input data.
These Pi values are used as input for an electron density N(h) profiler.
The acceleration responses obtained from these simulations are used as input to the OMA.
Results gained from one model are used as input parameters or boundary conditions on other levels.
Those permutations are used as input to a procedure that generates rosters.
These demand patterns are used as input parameter for various production control policies.
Three real earthquake ground motion records are used as input base motion.
The data obtained are used as input for hierarchical conjoint analysis.
Ab initio results obtained using Clementi's minimal basis set are used as input.
These parameters are used as input features to a decision tree classifier for identifying creaky regions.
