Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms

This study was conducted to analyze and compare the effectiveness of two algorithms—K-Nearest Neighbor (K-NN) and C4.5—in predicting keyword conversion on the Google Ads platform. With the rapid growth of digital marketing, selecting the right keywords has become crucial for improving conversion rat...

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Main Authors: Muhammad Sya'ban Harahap, Alva Hendi Muhammad
Format: Article
Language:Indonesian
Published: Islamic University of Indragiri 2025-05-01
Series:Sistemasi: Jurnal Sistem Informasi
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Online Access:https://sistemasi.ftik.unisi.ac.id/index.php/stmsi/article/view/5174
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author Muhammad Sya'ban Harahap
Alva Hendi Muhammad
author_facet Muhammad Sya'ban Harahap
Alva Hendi Muhammad
author_sort Muhammad Sya'ban Harahap
collection DOAJ
description This study was conducted to analyze and compare the effectiveness of two algorithms—K-Nearest Neighbor (K-NN) and C4.5—in predicting keyword conversion on the Google Ads platform. With the rapid growth of digital marketing, selecting the right keywords has become crucial for improving conversion rates. The research utilized a dataset of 673 entries with 12 relevant attributes, collected from historical ads and the Google Ads Keyword Planner. A comparative experimental approach was employed, with the data split into training (80%) and testing (20%) sets. The analysis revealed that the C4.5 algorithm achieved higher accuracy (85.41%) compared to K-NN (74.86%). Evaluation was based on metrics such as accuracy, precision, recall, and F1-score, which indicated that C4.5 was more effective in predicting conversions using the given dataset. These findings offer valuable insights for advertisers aiming to optimize their ad campaigns by selecting more effective keywords. However, the study also acknowledges limitations and recommends further research using larger and more diverse datasets to enhance model accuracy.
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institution Kabale University
issn 2302-8149
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language Indonesian
publishDate 2025-05-01
publisher Islamic University of Indragiri
record_format Article
series Sistemasi: Jurnal Sistem Informasi
spelling doaj-art-e8a8ee7b77dd4b4eaf6a6efffc2db8522025-08-26T08:05:47ZindIslamic University of IndragiriSistemasi: Jurnal Sistem Informasi2302-81492540-97192025-05-011431370137710.32520/stmsi.v14i3.51741076Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 AlgorithmsMuhammad Sya'ban Harahap0Alva Hendi Muhammad1Universitas Amikom YogyakartaUniversitas Amikom YogyakartaThis study was conducted to analyze and compare the effectiveness of two algorithms—K-Nearest Neighbor (K-NN) and C4.5—in predicting keyword conversion on the Google Ads platform. With the rapid growth of digital marketing, selecting the right keywords has become crucial for improving conversion rates. The research utilized a dataset of 673 entries with 12 relevant attributes, collected from historical ads and the Google Ads Keyword Planner. A comparative experimental approach was employed, with the data split into training (80%) and testing (20%) sets. The analysis revealed that the C4.5 algorithm achieved higher accuracy (85.41%) compared to K-NN (74.86%). Evaluation was based on metrics such as accuracy, precision, recall, and F1-score, which indicated that C4.5 was more effective in predicting conversions using the given dataset. These findings offer valuable insights for advertisers aiming to optimize their ad campaigns by selecting more effective keywords. However, the study also acknowledges limitations and recommends further research using larger and more diverse datasets to enhance model accuracy.https://sistemasi.ftik.unisi.ac.id/index.php/stmsi/article/view/5174k-nearest neighborc4.5konversigoogle adsdigital marketing
spellingShingle Muhammad Sya'ban Harahap
Alva Hendi Muhammad
Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms
Sistemasi: Jurnal Sistem Informasi
k-nearest neighbor
c4.5
konversi
google ads
digital marketing
title Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms
title_full Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms
title_fullStr Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms
title_full_unstemmed Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms
title_short Conversion Prediction in Google Search Ads Keyword Selection Using the K-Nearest Neighbor and C4.5 Algorithms
title_sort conversion prediction in google search ads keyword selection using the k nearest neighbor and c4 5 algorithms
topic k-nearest neighbor
c4.5
konversi
google ads
digital marketing
url https://sistemasi.ftik.unisi.ac.id/index.php/stmsi/article/view/5174
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