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desharnais.arff
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% This is a PROMISE Software Engineering Repository data set made publicly
% available in order to encourage repeatable, verifiable, refutable, and/or
% improvable predictive models of software engineering.
%
% If you publish material based on PROMISE data sets then, please
% follow the acknowledgment guidelines posted on the PROMISE repository
% web page http://promise.site.uottawa.ca/SERepository .
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@relation desharnais.csv
% Domain: software cost estimation
% Donor: Martin Shepperd <[email protected]
% Notes: 4 incomplete projects (projects 38,44,66,75) so often people use the 77 complete cases.
% The original source is [1].
% Our paper [2] provides a basic overview of the data set.
% References:
% [1] J. M. Desharnais, "Analyse statistique de la
% productivitie des projets informatique a partie de la
% technique des point des foncti\ on," University of Montreal,
% Masters Thesis, 1989.
%
% [2] M. J. Shepperd and C. Schofield, "Estimating software
% project effort using analogies," IEEE Transactions on
% Software Engineering,\ vol. 23, pp. 736-743, 1997.
% Attributes:
@attribute Project numeric % proj if
@attribute TeamExp numeric % measured in years
@attribute ManagerExp numeric % measured in years
@attribute YearEnd numeric
@attribute Length numeric
@attribute Effort numeric % ActualEffort is measured in person-hours
@attribute Transactions numeric % Transactions is a count of basic logical transactions in the system
@attribute Entities numeric % Entities is the number of entities in the systems data model
@attribute PointsAdjust numeric
@attribute Envergure numeric
@attribute PointsNonAjust numeric
@attribute Language {1,2,3}
%
% Sample run (WEKA):
% === Run information ===
%
% Scheme: weka.classifiers.functions.LinearRegression -S 0 -R 1.0E-8
% Relation: martin.csv
% Instances: 81
% Attributes: 12
% Project
% TeamExp
% ManagerExp
% YearEnd
% Length
% Effort
% Transactions
% Entities
% PointsAdjust
% Envergure
% PointsNonAjust
% Langage
% Test mode: 10-fold cross-validation
%
% === Classifier model (full training set) ===
%
% Linear Regression Model
%
% Effort =
% -433.25 * TeamExp +
% 408.8057 * ManagerExp +
% 201.2701 * Length +
% 4.2361 * Transactions +
% 7.9056 * Entities +
% 4.4594 * PointsAdjust +
% 92.1389 * Envergure +
% -1777.4579 * Langage +
% -278.0786
%
% Time taken to build model: 0.02 seconds
%
% === Cross-validation ===
% === Summary ===
%
% Correlation coefficient 0.7303
% Mean absolute error 2082.1182
% Root mean squared error 3007.0504
% Relative absolute error 64.9965 %
% Root relative squared error 67.3788 %
% Total Number of Instances 81
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