The phrase "an arbitrary reference" is correct and usable in written English.
It can be used when discussing a reference that is chosen without any specific reason or criteria, often in a theoretical or analytical context.
Example: "In this study, we will use an arbitrary reference point to illustrate the concept of relativity."
Alternatives: "a random reference" or "a non-specific reference".
We thus avoided relying on genes present in an arbitrary reference genome for our analysis.
Easton DF, Peto J, Babiker AG (1991) Floating absolute risk: an alternative to relative risk in survival and case-control analysis avoiding an arbitrary reference group.
For that we have to agree on an arbitrary reference direction, and measure the angle between that direction and the ascending node.
The translation theory is developed by introducing "conversion" operators, which enable the representation of the electric and magnetic vector fields via scalar potentials in an arbitrary reference frame.
In fact, it is rather a yearly failure rate that has to be specified and verified and not a failure probability for an arbitrary reference time.
In particular, nonlinear mathematical models in machine variables as well as in an arbitrary reference frame are found in Cauchy's form, and the motion control problem is studied for induction motors from closed-loop perspectives.
Important to this study is therefore not the number of variants with respect to a (arbitrary) reference genome, rather the differences observed between samples collected from the same individual at different times.
Balance equations for total energy, entropy and availability relative to an arbitrary references state are given.
The nomenclature is based on the human reference genome and not any arbitrary reference sequences, resulting in the generation of unique identifiers.
Each layer is represented by a two-by-two traveling pressure wave transfer matrix which relates the forward and reverse pressure waves on one side of the layer to the pressure waves on the opposite face, where each face is assumed to be in contact with a domain of arbitrary reference acoustic impedance.
To determine losses in the TIM an equivalent electrical circuit in arbitrary reference frame is used, which combines a traditional model with the more usual modeling of losses in the stator iron.
