\begin{thebibliography}{10}
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\bibitem{Boehm81}
B.~Boehm. \emph{Software Engineering Economics}. Prentice Hall, 1981.

\bibitem{Capers98}
T.~Jones, \emph{Estimating Software Costs}.\hskip 1em plus 0.5em minus
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\bibitem{Boehm00b}
B.~Boehm, E.~Horowitz, R.~Madachy, D.~Reifer, B.~K. Clark, B.~Steece, A.~W.
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\bibitem{Witten05}
I.~H. Witten and E.~Frank, \emph{Data mining. 2nd edition}.\hskip 1em plus
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\bibitem{Hall03}
M.~Hall and G.~Holmes, ``Benchmarking attribute selection techniques for
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\bibitem{Chen05}
Z.~Chen, T.~Menzies, D.~Port, and B.~Boehm, ``Feature subset selection can improve software cost estimation accuracy.`` in
  \emph{Proceedings of the 2005 Workshop on Predictor Models in Software Engineering}, ACM Press, New York, NY, May 2005.
  
\bibitem{Menzies05}
T.~Menzies, D.~Port, Zhihao Chen, and J. ~Hihn, ``Validation methods for calibrating software effort models,`` in
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  plus 0.5em minus 0.4em\relax vol., no.pp. 587- 595, 15--21 May 2005.
    
\bibitem{Menzies06}
T.~Menzies and J.~Hihn, ``Evidence-Based Cost Estimation for Better-Quality Software,`` in \emph{IEEE Software}
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\bibitem{Lash04}
G. V. Lashkia and L. Anthony, ``Relevant, irredundant feature selection and noisy example elimination,`` in
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\bibitem{Shepperd97}
M.~Shepperd and C.~Schofield, ``Estimating software project effort using
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\bibitem{Strike01}
K. Strike, K. E. Emam and N. H. Madhavji, ``Software Cost Estimation with Incomplete Data`` in
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\bibitem{Kohavi97}
R.~Kohavi and G.~H. John, ``Wrappers for feature subset selection,`` 
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\bibitem{Brouck03}
R.~Bouckaert, ``Choosing between two learning algorithms based on calibrated
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\end{thebibliography}