sdü vizyoner dergisi Süleyman Demirel Üniversitesi Vizyoner Dergisi 1308-9552 Süleyman Demirel Üniversitesi 10.21076/vizyoner.1208355 Business Administration İşletme Restoran Müşterilerinin Geri Bildirimleri Üzerinde Hedef Kategorinin Tespiti ve Hedef Tabanlı Duygu Analizi Detection of Aspect Category and Aspect-Based Sentiment Analysis on Restaurant Customers' Feedbacks https://orcid.org/0000-0002-8634-8643 Tuna Murat Fatih SİVAS CUMHURİYET ÜNİVERSİTESİ https://orcid.org/0000-0002-7503-2977 Polatgil Mesut SİVAS CUMHURİYET ÜNİVERSİTESİ https://orcid.org/0000-0003-2387-4053 Kaynar Oğuz SİVAS CUMHURİYET ÜNİVERSİTESİ 11 25 2023 14 40 1205 1221 11 22 2022 09 20 2023 Copyright © 2009, Süleyman Demirel Üniversitesi Vizyoner Dergisi 2009 Süleyman Demirel Üniversitesi Vizyoner Dergisi

Günümüzde tüketicilerin ürün ve hizmetler konusunda fikir paylaşabilecekleri birçok mecra bulunmaktadır. Bu fikirler, geri bildirimin yapısı itibariyle genellikle metin formatındadır. Duygu analizi, metin tabanlı bilgi kaynaklarında son yıllarda önem kazanan bir konudur. Daha hassas bir duygu analiz türü olan Hedef Tabanlı Duygu Analizi bir cümle içerisinde hedef terim, hedef kategori ve duygu sınıfının belirlenmesi işidir. Bu çalışmada Semeval ABSA yarışmasında yarışmacılara sunulan restoran müşterilerine ait yorumlardan oluşan bir veri seti kullanılmıştır. Word2vec, Glove, Fastext ve Bert yöntemleri kullanılarak veri seti üzerinde hedef terim, hedef kategori ve duygu sınıfının belirlenmesi işlemi gerçekleştirilmiştir. Kelimeyi vektörü ile cümle vektörünün birleştirilmesi ABSA için sınıflandırma başarısını artırıp artıramayacağı hipotezi test edilmiştir. Dört farklı vektör yöntemi ile yapılan sınıflandırmada hedef terim için 0,78 F1 skoru ile Fasttext yöntemi, hedef kategori için 0,57 F1 skoru ile Fasttext ve duygu sınıfı için 0,76 F1 skoru ile Bert yöntemi en başarılı sonuçları vermiştir. Bu sonuçlar literatürde farklı veri setleri ve farklı diller için yapılan çalışmalarla kıyaslanmıştır. Sonuç olarak Fasttext ve Bert temsil yöntemlerinin hedef tabanlı Türkçe dilindeki metinlerin duygu analizinde başarılı sonuçlar verdiği tespit edilmiştir.

Today, there are many channels where consumers can share their ideas about products and services. These opinions are usually in text format due to the nature of the feedback. Sentiment analysis is a topic that has gained importance in recent years, especially in text-based information sources. Aspect-based Sentiment Analysis, which is a more sensitive sentiment analysis technique, is the task of determining the aspect term, aspect category and sentiment class in a sentence. A data set consisting of the comments of restaurant customers presented to the competitors in the Semeval ABSA competition is used in the study. Using Word2vec, Glove, Fastext and Bert methods, the aspect term, aspect category and sentiment class are determined on the data set. The hypothesis is tested whether combining the word vector and the sentence vector can improve classification success for ABSA. In the classification made with four different vector methods, Fasttext method with 0.78 F1 score for the target term, Fasttext with 0.57 F1 score for the target category, and Bert method with 0.76 F1 score for the sentiment class have the most successful results. These results are compared with studies in the literature for different data sets and different languages. As a result, it is determined that Fasttext and Bert representation methods give successful results in sentiment analysis of target-based Turkish language texts.

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