Yasella Dina  Aprilia, Tito Waluyo  Purboyo, Roswan  Latuconsina, 
    Experimental Process of Data Laboratory Recruitment Using C4.5 Algorithm,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 1,
    2019,
    Pages 253-258,
    ISSN 1816-949x,
    jeasci.2019.253.258,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.253.258)
    Abstract: Data processing use C4.5 algorithm with Excel is useful to speed up manual calculations. Use
of MS. Excel to help users to learn in understanding data mining algorithms before using programming
languages like Java, C <sup>++</sup>, R programming, etc. Data train is the data recruitment assistant laboratory. This data
has several stages: file collection interview, written test, coding test internship test, teaching test, a coding test
for 12 h. Based on the phase stage will be done with the calculation C4.5 algorithm. Based on the results of this
experiment will form a decision tree.
    Keywords: experiment;results;calculation;phase stage recruitment;C4.5 algorithm;speed up