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** دانشیار مدیریت و حسابداری، دانشگاه علامه طباطبائی
چکیده
نسبتهای مالی همواره یکی از منابع قوی در ارزیابی عملکرد مالی شرکتهای بورس اوراق بهادار تهران است. یکی از روشهای پیشبینی عملکرد استفاده از الگوریتمهای دادهکاوی است. در این پژوهش، چهار مدل درخت تصمیم بهمنظور ارزیابی عملکرد، پیادهسازی و مدلها با معیارهای ارزیابی مقایسه شدند. بدین منظور نمونهای متشکل 21 نسبت در 534 شرکت پذیرفتهشده در بورس اوراق بهادار تهران در فاصله بین سالهای 1390 تا 1393 بهعنوان متغیرهای مستقل و دو نسبت بازده داراییها و بازده حقوق صاحبان سهام بهعنوان متغیرهای وابسته انتخاب شده است. نتایج تحقیق حاکی از آن است که بین دو متغیر بازده داراییها و بازده حقوق صاحبان سهام، بازده حقوق صاحبان سهام از لحاظ ارزیابیهای بهدستآمده از صحت بالاتری برخوردار است و در بین چهار درخت تصمیم سی فایو از بهترین شاخصههای ارزیابی برخوردار بود.
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