Authors: Nishant Verma, Sumesh Sood, Kritika Kumari, Neha Kumari
Certificate: View Certificate
Sentiment analysis of product reviews has become an important research area in recent years. With the rise of e-commerce platforms, online reviews have become an essential part of the decision-making process for consumers. This paper presents a review of the recent advancements in sentiment analysis techniques for product reviews. The paper covers various aspects of sentiment analysis, such as feature extraction, sentiment classification, and aspect-based sentiment analysis. This paper is to analyse the strengths and weaknesses of different techniques, such as rule-based approaches, machine learning-based approaches, and deep learning-based approaches. The paper also highlights the challenges in sentiment analysis, such as handling negation, sarcasm, and irony in reviews. Furthermore, the paper discusses the future research directions in this field. Finally, this paper conclude with a discussion on the potential applications of sentiment analysis, such as market research, product development, and customer service. Overall, this paper provides an overview of the recent advancements in sentiment analysis techniques for product reviews and serves as a roadmap for future research in this field.
In the era of Web 2.0, many customers rely on internet reviews to make purchasing decisions. People share their subjective experiences and thoughts about various products, making it easier for others to learn about a product before buying. With the proliferation of e-commerce platforms, online product reviews have become a crucial source of information for consumers. The sentiment analysis of product reviews has thus gained significant attention as it can provide insights into customer opinions towards different products and services. Sentiment analysis involves extracting features, classifying the polarity of the review, and analysing the sentiment towards specific aspects of the product or service. The analysis of these sentiments has various potential applications, such as market research, product development, and customer service. However, it can be time-consuming and challenging for customers to find relevant and reliable information. Companies may also struggle to understand customer requirements. Product reviews provide valuable insights into customer sentiment toward a particular product.
Utilising various algorithms and methodologies, sentiment analysis for product reviews involves extracting a feature-by-feature evaluation of a product and analysing it to produce an honest review. Companies can learn about client expectations before a new launch by conducting sentiment research on a certain product. Companies can benefit from this knowledge by using it to create efficient marketing plans. For customers, sentiment analysis can help them make informed purchasing decisions. By conducting comparative analysis of products and brands, customers can select the product that best suits their requirements. By determining the features and their ratings, customers can make well-informed decisions.
In order to categorise opinions based on various product aspects, sentiment analysis on product reviews aims to gather information about a certain brand or product from the vast amount of data that is readily available online. This necessitates locating the pertinent features and training a classifier on them. The classification should be carried out in an effective and accurate manner. This requires the identification and classification of both advantageous and detrimental characteristics. Due to the lack of a single, comprehensive evaluation for a variety of products, sentiment analysis on product reviews is required. Customers often presents a mix of positive and negative opinions, which can be difficult to interpret. By using sentiment analysis, customers can make informed decisions before purchasing a product. Companies can also use this analysis to develop effective marketing strategies and better understand the needs of their customers. Following a product launch, analysis of the product can assist businesses to identify the advantages and disadvantages of the product. In general, sentiment analysis of product reviews can assist businesses and consumers in making wiser decisions and enhancing their offerings. This study will use a systematic literature review to analyse existing research on the impact of sentiment analysis on e-commerce performance in social network communities.
Data from e-commerce websites like Amazon and Flipkart, which provide user reviews on a variety of products, mainly electronic goods like mobile phones, televisions, computers, and cameras, was collected to analyse sentiment from these reviews.
Through web scraping, data is dynamically collected. The polarity of opinions was studied after data collection. Words like "good" and "bad" used to connote positive and negative ideas, respectively. The words used to express the user's opinion can also be used to gauge the strength of an opinion. For instance, "good" and "excellent" indicate different levels of positive sentiment. The classification of reviews is then determined with respect to sentiment classes, such as positive and negative reviews.
II. LITERATURE REVIEW
In recent years, sentiment analysis of product reviews has become an important research area due to the rise of e-commerce platforms and the crucial role of online reviews in consumer decision-making. Various approaches has proposed to classify product reviews as positive, negative, or neutral, as well as to extract the features of the products and the sentiment expressed towards them.
Several studies that make use of machine learning and deep learning techniques have put forth several ways for sentiment analysis of product reviews.
III. COMPARATIVE STUDY
The articles in the below table focus on different methods and techniques to extract sentiment and feature information from online product reviews. In order to provide information to consumers, producers, and merchants to help them make better decisions, they employ a variety of techniques and algorithms to analyse and categorise the sentiment polarity and aspects of the reviews. This table also provide comparative evaluations of the different methods used, highlighting the strengths and weaknesses of each approach.
Sentiment Analysis of Product Reviews Using Various Techniques
The articles compared in this study offer diverse approaches to extracting sentiment and feature information from online product reviews. These methods employ a range of tools and algorithms to analyze and classify the sentiment polarity and features expressed in the reviews. The ultimate goal is to provide valuable insights to customers, manufacturers, and retailers, facilitating informed decision-making processes. Through comparative evaluations, this study sheds light on the various techniques utilized, highlighting their respective strengths, weaknesses, and potential for future development. By exploring these different approaches, researchers and practitioners can gain a deeper understanding of sentiment analysis in the context of product reviews, enabling them to make informed choices and enhance the overall customer experience.
V. FUTURE WORK
In the future, reviews will be aggregated and more reviews will be provided using data from places like Twitter and eBay. From Amazon and Flipkart, data had already been extracted. To evaluate the performance of the classifier, performance metrics like recall and precision will be used. The quality of the words used to express the user's emotion would be taken into consideration to produce accurate results. For example, the words "good" and "excellent" signify various degrees of positive emotion. Any word's strength can be determined by adding intensifiers like "very" before it. In addition, future work will expand to more product review websites and concentrate on more difficult natural language processing problems. In order to produce accurate results, the algorithm will only take into account the keywords that are already present in the dataset and ignore any other words. To improve the accuracy of the outcomes, the latest and best methods and technologies will be used.
In conclusion, we found that Naive Bayes\' classifier is capable of producing excellent outcomes according to appropriate features selected. The results tend to differ for various n-grams, unigrams and bigrams have found to be particularly effective. It has also observed that feature presence is a superior metric for sentiment analysis compared to feature frequency. The effectiveness of different techniques used in sentiment analysis varies depending on the dataset employed. Accuracy can be improved using POS tagging and negation. Aspect level sentiment analysis can also be performed utilising several unsupervised learning approaches, such as POS tagging to identify features and opinions and Word Net to categorise opinions according to their semantic orientation. According to the study, word presence rather than word frequency produces superior outcomes, which is in line with earlier studies. In contrast to sentences that had only features or only opinions, those that contained both produced meaningful results.
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