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Review

Sentiment Analysis of Twitter Data

1
Engineering Research Center of Digital Forensics, Ministry of Education, Nanjing University of Information Science and Technology, Nanjing 210044, China
2
School of Computer Science, Nanjing University of Information Science and Technology, Nanjing 210044, China
3
College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
4
Internet of Things & Smart City Innovation Platform, Zhuhai Fudan Innovation Institute, Zhuhai 519031, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2022, 12(22), 11775; https://doi.org/10.3390/app122211775
Submission received: 27 October 2022 / Revised: 15 November 2022 / Accepted: 15 November 2022 / Published: 19 November 2022
(This article belongs to the Special Issue Advances and Application of Intelligent Video Surveillance System)

Abstract

:
Twitter has become a major social media platform and has attracted considerable interest among researchers in sentiment analysis. Research into Twitter Sentiment Analysis (TSA) is an active subfield of text mining. TSA refers to the use of computers to process the subjective nature of Twitter data, including its opinions and sentiments. In this research, a thorough review of the most recent developments in this area, and a wide range of newly proposed algorithms and applications are explored. Each publication is arranged into a category based on its significance to a particular type of TSA method. The purpose of this survey is to provide a concise, nearly comprehensive overview of TSA techniques and related fields. The primary contributions of the survey are the detailed classifications of numerous recent articles and the depiction of the current direction of research in the field of TSA.

1. Introduction

Due to the recent explosive rise of Social Networking Services (SNS), an enormous amount of user-generated data, such as comments and reviews, is being created consistently [1]. People’s opinions and feelings are expressed in the information, which is mostly based on a common object of interest. These data have become treasure troves of information, giving several chances for analyzing people’s reactions, which is particularly beneficial in forecasting the sales of products [2], trends in the stock market [3], and results of political elections [4]. There are more than 300 million active Twitter users [5], making it one of the most popular micro-blogging services [6]. In light of its significance in the perception of people’s thoughts and attitudes, Twitter-based Sentiment Analysis (TSA) has consequently attracted a great deal of attention [7,8].
The topic of SA has been the subject of a great deal of writing, and more recently, significant attention has been paid to TSA. Obviously, this therefore calls for a survey article that may provide an overview of the current techniques and directions in the field of study. Pang and Lee [9] provided an extensive and in-depth review of SA through experimental works by using different kinds of data. However, the most up-to-date methods were not shown in the article due to the fact that it was released a while ago. In addition, comprehensive coverage of core concepts and topics concerning SA was introduced by Liu et al. [10], in which the examination of application-centric methods was performed to explain the basic ideas of SA. Adwan et al. [11] offered a survey providing a brief introduction to the techniques of TSA. Nevertheless, only a few publications were mentioned. Although there is also a most recent survey related to TSA [12], in which only the machine-learning-based methods were investigated. According to our knowledge, there is a lack of comprehensive studies focusing on TSA. Thus, as a fundamental, a thorough overview of the concepts of SA, and a more concise description of the ideas and terminologies of TSA was illustrated in this survey. Recent advances and discoveries in TSA were also presented. Moreover, tables were used to properly classify the published papers, which allows for a more straightforward comparison among various methods.
The chosen articles in the present survey have a significant impact on TSA research and related topics. Particularly, the state-of-the-art technologies available today have been incorporated to exhibit the most current findings of TSA, while the traditional approaches were selected as a comparative standard. In addition, the central section of the survey is structured with three primary components: machine-learning-based, lexicon-based, and hybrid approaches, all of which are in keeping with the current trends in TSA research. More effort has also been devoted to machine-learning-based solutions since those techniques can produce a better performance of prediction accuracy for TSA tasks. Specifically, TSA is extensively discussed in this survey, and it is broken down into the following subsections: Section 2 introduces the role and the structure of Twitter. Section 3 illustrates the background and basic concept of sentiment analysis. The representation of the feature for TSA is explained in Section 4, and Section 5 shows the different levels of analysis. In Section 6, the approaches and recent achievements in Twitter sentiment analysis are presented. Section 7 presents several survey-related discussions. Finally, the survey is concluded in Section 8. Table 1 displays the abbreviation descriptions mentioned in this paper. To gain a better understanding of the TSA, several research questions are raised as follows.
  • RQ1: What is the major difference between sentiment analysis and opinion mining?
Sentiment Analysis (SA) and Opinion Mining (OM) are two promising fields of study that are both employed to learn about the feelings and opinions of people regarding certain topics. As a result, both SA and OM can be used interchangeably to convey the same concept in many cases. However, other scholars have argued that they are different since they were developed to solve different problems. For instance, Tsytsarau et al. [13] claimed that OM is designed to assess whether or not a given piece of text contains an opinion and is used to address the subjective analysis problem. On the other hand, SA refers to the analysis and prediction of the sentiment polarity of text data [14].
  • RQ2: Why was Twitter selected as the primary target platform for the study of SA?
Twitter has a significant number of active users, and Twitter API makes it simple to collect vast quantities of opinionated text data. In addition, the users come from a variety of backgrounds, including common individuals, celebrities, politicians, etc. In addition, the collected corpus includes a wide range of distinct materials from several domains, which allows easy access to textual information in a variety of languages [15].
  • RQ3: What are the challenges that TSA is facing?
TSA has several significant challenges. Given that a tweet can only be a maximum of 140 characters long, text length is an extremely crucial one. Different from previous research on evaluating the long text of the document, analyzing the sentiment of short length text presents a new challenge for TSA. Topic relevance is another difficulty, which refers to the categorization of tweets into certain topics. This contributes to the efficiency of the fine-grained TSA tasks. In addition, text pre-processing techniques are also essential for TSA. Preprocessing the raw dataset is a prerequisite for model creation, therefore various methods, such as removing punctuation, stop-word removal, stemming, and lemmatization, etc., have been introduced accordingly [14].

2. Twitter

Various microblogging platforms like Twitter, Facebook, and Instagram were born out of the emergence of SNS [14]. Twitter is a widely used SNS that allows users to exchange 140-character messages (referred to as “tweet”) [16]. More than 300 million people have signed up to use Twitter, which generates over 500 million updates each day [6,17]. Because of the ease with which it can be shared, Twitter has grown to be one of the most important sources of user-generated data. The following is a list of the most important features of Twitter.
Tweet: A tweet is a 140-character maximum data unit that can be transmitted using Twitter. Its content ranges from how people feel or what they think about certain events, to photos, videos, and links, etc., all of which can be easily shared with the users’ contacts.
Handle: This refers to the behavior of tweet updating or public messaging to other users. It is written as “@username,” and the @ symbol is used to refer to the person or organization with whom the tweets are connected [14].
Hashtag: Hashtag is a kind of metadata tag used in various SNS that allows users to adopt dynamic, user-generated tags to make it easier for others to find the tweets related to a specific topic [18].
Follow: This is an activity of registered users to pursue people, companies, or any organization that they are interested in and to receive updated tweets in real time. Twitter is more than just a tool for staying in touch with friends and sharing one’s own daily activities, its true strength lies in the dissemination of information and the following of others.
Retweet: It is one of the most useful tools for disseminating information on Twitter, in which users are allowed to re-post the tweets they are interested in. Here, the original tweets generally remain unchanged, followed by the abbreviation of the original username of the authors [14].
Search: This powerful feature allows users to search keywords and phrases on Twitter to find updated tweets about their interests in real time [19]. People are more likely to join Twitter because of this search function, which facilitates the discovery and dissemination of relevant content.
Table 2 shows an example of a tweet from the user, BaskFan. It is worth noting that the tweet contains some of the features above. @Strive indicates that the tweet is a reply to the user of Strive, and the user, NBA, has also been mentioned. Meanwhile, the hashtag shows that it is related to the topic of lakers.

3. Sentiment Analysis

Opinion mining is a subfield of linguistics and natural language processing that deals with sentiment analysis. It evaluates the degree of polarity of words and phrases to examine and extracts views and feelings from textual data [20,21]. Various studies and advances have been carried out by organizations or individuals that are interested in finding out how people feel about a given issue [20]. The term of sentiment was firstly coined by Das and Chen [22] and Tong [23] in 2001, who evaluated the sentiment of the market by automatic analysis of the text [9]. Turney [24], Pang et al. [25], and Nasukawa and Yi [26] were some of the first to discuss sentiment analysis and the Natural Language Processing (NLP) methods that go along with it in their following publications. In addition, a great deal of work has been carried out on more application-oriented approaches. As an example, Liu et al. [27] proposed a sentiment-based approach to forecast sale patterns. The models presented by McGlohon et al. [28] to estimate product and merchant quality were statistical and heuristic. Chen et al. [29] used sentiment analysis techniques to find hidden relationships between subjects and opinionated phrases in the political realm, where novel opinion scoring models were developed. Yano and Smith [30] sought to identify links between the number of comments and political sentiment using statistical modeling. Furthermore, evaluating Twitter conversation has emerged as a promising area of study. As the conversation offers a wealth of discriminative information relevant to various topics, it can facilitate the understanding of the feelings of people. Optimistic and pessimistic emotions expressed in Twitter conversations were analyzed by using a novel deep learning approach [31]. It integrated emotion detection with conversation reconstruction modules to discover sentiment polarity in social media posts. Tamar Ginossar et al. [32] evaluated the cross-platform spreading of information by analyzing Twitter conversations. Rabindra Lamsal et al. [33] developed forecasting models to predict the prevalence of virus using the workload of Twitter conversations, which employed a latent variables-based searching technique.
Sentiment analysis has also been applied to business and social studies. Companies like Google and Microsoft have recently built their own sentiment analysis systems to assist in their industrial and commercial activities [34]. TSA attempts to address the difficulty of evaluating the hidden meaning of tweets posted on Twitter, which is considered a new subject of sentiment analysis. There exist some challenges to TSA, the most significant of which is the restriction on message size. Due to the fact that a tweet contains no more than 140 characters, it is difficult to glean the sentiment contained within such a little amount of text. Meanwhile, the irregular textual representation on Twitter intensifies the complicatedness. Therefore, several concerns need to be addressed by the suggested TSA procedures [14]. Figure 1 shows the general operation flow of TSA.
A sentiment analysis system often receives data from a variety of sources, such as blogs, comments, reviews, etc., in a variety of forms, such as XML, HTML, and PDF [35]. Techniques like tokenization, steaming, and stop-word removal are used to standardize and transform the data from the corpus into training datasets in text format. In sentiment analysis, selecting a collection of relevant features to train the text classifiers is a critical stage since different combinations of features have a significant impact on the final performance of sentiment analysis tasks. Then, the polarity label of the tested data is determined, relying on a text classifier which is trained and built up by the machine learning technique [14].

4. Representation of Feature

Feature representation is a preprocessing step in sentiment analysis that involves turning text content into a feature vector [9]. The following are the most common ways of expressing the feature in sentiment analysis:
N-gram: It identifies a single feature in a given text or speech corpus as a continuous sequence of n terms. Unigram refers to the n-gram of the size of one, and bigram refers to the size of two. Specifically, the term frequency based unigram is the most often used representation in which a single word is considered as a feature and its occurrence frequency is tallied as the feature value [36].
Part of Speech (POS) tagging: As another essential syntactic feature representation, this method assigns a POS tag (verb, adverb, adjective, etc.) to every word in a text or corpus. The well-known Penn Treebank POS tags are shown in Table 3 [34,37].
Negation: This is an important linguistic feature that greatly influences the polarity of a sentence. The location of the negative words is critical to rapidly establish the breadth of the word’s impact. A statement like, “I like playing basketball but I am tired today”, is impacted by the negative term because of the word following “basketball” [38].

5. Different Levels of Analysis

Classification at the document, sentence, and aspect levels are the three main types of classification for sentiment analysis.

5.1. Document-Level Sentiment Analysis

Negative or positive opinions are typically classified at document-level sentiment analysis. It treats the opinion expressed in a document as a single entity [34,39]. Two primary approaches to sentiment analysis at document level are supervised and unsupervised learning. To determine the polarity of a document, supervised learning divides the documents into certain groups and generates specialized training datasets. Semantic orientation is used by unsupervised learning approaches to detect the polarity of test documents by measuring the degree of particular phrase polarity in the documents. The test document is regarded as positive if the average value of semantic orientation is above the threshold, and it is considered as a negative one if it is not [35].

5.2. Sentiment-Level Sentiment Analysis

A single sentence is evaluated as an independent entity, and its entire tone is examined. The pre-judgment stage is necessary for the sentiment level of sentiment analysis. Only the subjective instances are analyzed further, while the objective ones are often deleted [35].

5.3. Aspect-Level Sentiment Analysis

In contrast to the previous two levels of analysis, a fine-grained analysis is conducted in aspect-level sentiment analysis. It typically comprises three steps: identification, categorization, and aggregation. Here, not only the overall sentiment of an item, but also the sentiments of all its components are examined. The stage of identification identifies the target pairs in the provided content that are relevant to the sentiment, and classification classifies their sentiments based on the predetermined sentiment values. Aggregation is the process of integrating the sentiment values of all components for a comprehensive perspective [40].

6. The Approaches for Twitter Sentiment Analysis

The methodologies for sentiment analysis can be generally divided into three main categories: machine learning-based, lexicon-based, and hybrid-based approaches. The taxonomy of sentiment analysis is shown in Figure 2 [41].

6.1. Machine Learning-Based Approach

The classification stage in sentiment analysis uses a classifier that is trained using machine-learning techniques. This approach can be broadly split into two types: supervised learning and unsupervised learning. An overall publication using machine learning techniques is provided in Table 4. The training dataset and linguistic characteristics are utilized for automatic text categorization in supervised learning, and primary supervised learning methodologies are outlined as follows.

6.1.1. Probabilistic Classifier

Mathematical models are used to predict the categorization based on the input [42]. Probabilistic classifiers such as the Naïve Bayes classifier (NB), Bayesian Network (BN), and Maximum Entropy classifier (ME) are often used in data analysis [43,44]. To determine the best class match, the Bayes theorem-based NB classifier is one of the most extensively used techniques. BN is another probabilistic model that employs Bayesian inference to calculate probability. Directed Acyclic Graph (DAG) is used to depict the variables and their conditional interdependencies [45]. The probability of a feature belonging to a specific category is computed using ME.

6.1.2. Linear Classifier

The linear classifier is generally used to determine which class a feature belongs to. The classification decision is made based on linear predictor functions, which linearly combine feature values. Support Vector Machine (SVM) and Neural Network (NN) are another two widely used implementation methodologies.

6.1.3. Rule-Based Classifier

This is effective to represent the information of the feature space using a set of rules of “IF-THEN” for the classification, and the decision is made to classify the features into predefined classes.

6.1.4. Decision Tree Classifier

This is a non-parametric approach of supervised learning, in which the feature space is continually partitioned into sub-feature spaces for classification and regression. The goal of this approach is to use decision rules to forecast the class label of the feature.
The supervised learning-based method is efficient for sentiment analysis; however, it is difficult to manually prepare labeled data for the classification system. An unsupervised learning-based approach has been developed to solve the problem, which identifies the degree of polarity by subjective indicators generated from the sentiment lexicon [9].

6.2. Lexicon-Based Approach

The lexicon-based method makes use of a sentiment lexicon to gauge the strength of the feelings expressed. To create a sentiment lexicon, a set of preset words is widely used. Dictionary-based and corpus-based methods are the two most common techniques to build a sentiment lexicon. Note that lexicographical information, such as a dictionary, is used in the dictionary-based technique to define sentiment words, whereas the corpus-based method typically employs scenarios of co-occurrence along with already established sentiment terms [69]. Table 5 lists the publications that use the lexicon-based sentiment analysis approach [14,41].

6.3. Hybrid Approach

For this approach, the machine-learning and lexicon-based methods are combined. It has been shown that the hybrid approach improves the performance of classification, and the publications using this approach are summarized in Table 6 [14,80].

6.4. Other Approaches

It is worth noting that some methods described in TSA literatures do not fit well into any of the aforementioned categories, part of which could be categorized as “graph-based approaches” [14]. The methodology seeks to build a connected social graph for effective label propagation with the assumption that people are mutually influential. Such approaches were initially developed by Speriosu et al. [90] for TSA, in which various objects (tweets, hashtags, unigrams, etc.) were utilized as nodes to create the graph. Additionally, Cui et al. [91] introduced another label propagation method based on the extraction and analysis of emotion tokens. Recently, a graph-based technique was presented by Cambria et al. [92] where reasoning tasks were performed by developing a morphology-aware concept parser. Since construction of the social graph is time-consuming, and the availability of the graph is greatly dependent on the diversity of the corpus, this area of study requires further investigation.

7. Discussion

In light of the above, it is clear that the machine-learning-based approach to TSA is the most popular. By this method, conventional machine learning algorithms are trained using a subset of available features to predict the sentiment polarity of a given piece of text. It is worth noting that the performance of the combination of multiple classifiers generally yields better experimental results than the use of an individual one. Nonetheless, the approach has its limits. Firstly, the size of the training dataset has a significant impact on the classification performance of TSA. In order to train the models, most machine-learning algorithms need a huge number of manually annotated tweets. However, due to the high cost of human annotation of tweets, creating such data becomes a tedious task. Although research such as distant supervision has looked into techniques to generate a huge number of annotated tweets, annotation in poor quality has a negative impact on the efficiency of TSA. Secondly, domain dependence is another limitation of machine learning-based approaches. Specifically, the prediction accuracy of the TSA task is highly dependent on the classifiers that were taught by the target domain [14].
Lexicon-based approaches relying on sentiment lexicons are introduced to categorize TSA tasks. Its advantage is that it does not require annotated tweets; nevertheless, the words that are not in the lexicon might reduce the performance. Context independence is another drawback of the lexicon-based approaches, which ignores the relationship between the sentiment and context of words. Hybrid approaches are proposed to address the weaknesses of the machine-learning-based and lexicon-based approaches, which produce superior performance in specific domains of the dataset but require a high computational cost [14].

8. Conclusions

In recent years, researchers have become increasingly interested in analyzing tweets based on the sentiments they represent. This interest comes from the fact that a great number of tweets are posted on Twitter, which provides vital information on the sentiments of the public on a variety of subjects. The goal of this survey is to introduce the basic concepts and techniques for sentiment analysis of tweets, and more than 60 publications were evaluated and classified to exhibit the most recent developments in the field. It is also beneficial to learn sentiment analysis by looking at the most recent applications of TSA. It is believed that TSA will be a rapidly developing research field during the next few years. More studies on TSA will be conducted in the future.

Author Contributions

Conceptualization, Y.W.; methodology, C.Y.; software, J.G.; validation, B.L.; formal analysis, C.Y.; investigation, J.G.; data curation, Y.W.; writing—original draft preparation, Y.W.; writing—review and editing, Y.W. All authors have read and agreed to the published version of the manuscript.

Funding

This work was partly supported by the Research Startup Foundation of Nanjing University of Information Science & Technology (Grant No. 2020r014), the National Natural Science Foundation of China (Grant No. 61901191), the Shandong Provincial Natural Science Foundation (Grant No. ZR2020LZH005), and China Postdoctoral Science Foundation (Grant No. 2022M713668).

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Not applicable.

Acknowledgments

We thank Hee Yong Youn (Sungkyunkwan University) for his expertise and assistance throughout the studies and for comments in writing the manuscript. We also appreciate the efforts provided by Qiulin Wu in revising the manuscript.

Conflicts of Interest

The authors declare no conflict of interest.

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Figure 1. The operation flow of Twitter sentiment analysis [14].
Figure 1. The operation flow of Twitter sentiment analysis [14].
Applsci 12 11775 g001
Figure 2. The taxonomy of sentiment analysis.
Figure 2. The taxonomy of sentiment analysis.
Applsci 12 11775 g002
Table 1. The description of abbreviation.
Table 1. The description of abbreviation.
AbbreviationDescription
TSATwitter-based Sentiment Analysis
SNSSocial Networking Service
SASentiment Analysis
OMOpinion Mining
NLPNatural Language Processing
NBNaïve Bayes
SVMSupport Vector Machine
POSPart of Speech
BNBayesian Network
MEMaximum Entropy
DAGDirected Acyclic Graph
NNNeural Network
PSOParticle Swarm Optimization
3NN3-Nearest Neighbors
PCAPolarity Classification Algorithm
Table 2. One example of a tweet including user opinions.
Table 2. One example of a tweet including user opinions.
SourceUsernamePost
TwitterBaskFan@Strive: I LIKE watching basketball @NBA game especially LAKERS GAMES. #lakers
Table 3. Penn treebank POS tags.
Table 3. Penn treebank POS tags.
TagDescriptionTagDescription
CCCoordinating conjunctionPRP$Possessive pronoun
CDCardinal numberRBAdverb
DTDeterminerRBRAdverb, comparative
EXExistential thereRBSAdverb, superlative
FWForeign wordRPParticle
INProposition or subordinating conjunctionSYMSymbol
JJAdjectiveTO
JJRAdjective, comparativeUHInterjection
JJSAdjective, superlativeVBVerb, base form
LSList item markerVBDVerb, past tense
MDModalVBGVerb, gerund, or present participle
NNNoun, singular or massVBNVerb, past participle
NNSNoun, pluralVBPVerb, non-3rd person singular present
NNPProper noun, singularVBZVerb, 3rd person singular present
NNPSProper noun, pluralWDTWh-determiner
PDTPredeterminerWPWh-pronoun
POSPossessive endingWP$Possessive wh-pronoun
PRPPersonal pronounWRBWh-adverb
Table 4. The list of machine learning-based approaches for sentiment analysis.
Table 4. The list of machine learning-based approaches for sentiment analysis.
RefObjective and Algorithm UsedData ScopeDataset
[46]Feature selection, particle swarm optimization (PSO), CRFRestaurants and laptop reviewsSemEval-2014
[47]Feature subset selection, discrete PSO, logistic regression modelFinancial, spambase, Nursery, etc.UCI ML Respository
[48]Feature selection, Binary PSO, CART, NB, SVMHandwritten digitsUCI benchmark datasets
[49]Selecting emotional features, multi-swarm PSO, SVMCourse reviewDatasets from MOOC
[50]Feature weighting, optimization-based weighted voting scheme, NB, SVM, LR, Bayesian logistic regression, linear discriminantCamera, doctor, drug, radio, TV, etc.Datasets extracted from websites
[51]Binary classification, SVMMovie reviewOwn
[52]Feature weighting, adaptative Kullback–Leibler divergence score, SVMMovie review, newspaper article,Polarity dataset, Subjectivity dataset, MPQA dataset
[53]Feature selection and weighting, NB, SVMMovie reviewIMDb
[54]Supervised term weighting, SVM, kNNNewsgroup message, Economic news20 Newsgroups, Reuters-21578, TanCorp
[55]Feature selection, dynamic relevance, and joint mutual information maximization, SVM with RBF kernel, NB, 3-Nearest Neighbors (3NN)Vehicle, Madelon, USPS, etc.UCI Repository
[56]Feature clustering, divisive algorithm, NB, SVMNews message, HTML documents20 Newsgroups, data from open directory project
[57]Discriminatively weighted NB, NB, IWNB, BNB, DNBwide range of domainsUCI datasets
[58]Adaptive feature weighting approaches, MNB, CNB, OVAwide range of domainsDatasets in WEKA
[59]Improved NB text classifier, feature weighting, SVM, MNBEconomic news, Newsgroup messageReuters 21578, 20 Newsgroups
[60]Feature weighting and ranking, SVM, kNN, RBFwide range of domainsUCI ML Respository
[61]Content-based recommendation system, feature weighting,Movie reviewIMDb
[62]Iterative RELIEF for feature weighting, kNNwide range of domainsUCI and Microarray datasets
[63]Effective feature weighting, improved NB, GRFWNB, RFWNB, DTFWNB, CFSFWNB, CFSNB, and DFWNB.wide range of domainsUCI ML Respository
[64]Imbalanced text classification, probability-based term weighting, SVM, NBArchive of engineering technical papers, Newsgroup messageMCV1 and Reuters 21578
[65]ITD and ITS based supervised term weighting, SVMMovie review, product reviewCornell movie review, product reviews from Amazon, Stanford large movie review data set
[66]Comparative study of feature weighting, SVMEconomic newsReuters 21578
[67]Concept-based linguistic methods, Naive Bayes, Neural Network TweetManually annotated dataset
[68]Decision tree, logistic regression, multinomial naive Bayes, support vector machine, random forest, and Bernoulli Naive BayesTweetManually collected dataset
Table 5. The list of lexicon-based approaches proposed for sentiment analysis.
Table 5. The list of lexicon-based approaches proposed for sentiment analysis.
RefObjective and Algorithm UsedData ScopeDataset
[70]Classification of text using fine-grained attitude labels, semantic, lexicon created by ownUser-generated personal story Dataset from Experience Project website
[71]Lexicon-based approach, document discourse structure, sentiment classifier, semantic, lexicon created by ownMovie reviewIMDB
[72]Lexicon-based comments-oriented news sentiment analyzer, NLP, PMI-IR, taxonomy lexiconNews informationN/A
[73]Comparative analysis of emotion detection, supervised and lexical knowledge-based approach, SVMCorpus of emotionsISEAR, Emotinet
[74]Affect-based search, emotion lexicon by crowdsourcingEmails, fairy tales, Novels, etcCorpus of enron email
[75]Unsupervised system of SSA-UO, rule-based classifierUnlabeled Twitter message, SMS messageSemEval
[76]Rule-based pattern matching system, rule-based classifierMessage of Twitter and SMSSemEval
[77]Unsupervised sentiment analysis with emotional signals, sentiment lexiconTweet messageSTS, OMD
[78]Entity and tweet-level sentiment analysis, generic sentiment lexiconTweet messageOMD, HCR, STS-Gold
[79]Detection of connotative polarity, connotation lexiconTweet messageSemEval-2007, Sentiment twitter
Table 6. The list of hybrid-based approaches proposed for sentiment analysis.
Table 6. The list of hybrid-based approaches proposed for sentiment analysis.
RefObjective and Algorithm UsedData ScopeDataset
[81]Neural-network-based hybrid approach, sentiment classifierBlogger comments and product reviewsDatasets collected from LiveJournal, Review Centre
[82]Comparative study of ensemble technique for sentiment analysis, NB, SVM, maximum entropyMovie review, product reviewCornell movie-review corpora
[83]A system for subjectivity and sentiment analysis (SSA), manually created polarity lexiconChat messages, Arabic tweetsmulti-domain sentiment dataset from Amazon
[84]Rule-based multivariate feature selection, linear kernel SVMOnline reviewDAR, TGRD, THR, MONT
[85]Hybrid method combining rule-based classification and machine learning, SVM, SBC, RBC, GIBCMovie review, product review, and MySpace commentEpinions, Edmunds, Movie review [15]
[86]Entity-level sentiment analysis method, opinion lexicon, SVMTweet messagePolarity dataset
[87]Supervised feature reduction using n-grams, Twitter-specific lexicon, SVMTweet messageDataset extracted from Twitter API
[88]Large-scale distributed system for real-time Twitter sentiment analysis, lexicon builder, lexicon-based classifier, adaptive logistics regression Tweet messageDataset extracted from Twitter API
[89]Polarity Classification Algorithm (PCA), EEC, IPC, SWNCTweet messageDataset extracted from Twitter API
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Wang, Y.; Guo, J.; Yuan, C.; Li, B. Sentiment Analysis of Twitter Data. Appl. Sci. 2022, 12, 11775. https://doi.org/10.3390/app122211775

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Wang Y, Guo J, Yuan C, Li B. Sentiment Analysis of Twitter Data. Applied Sciences. 2022; 12(22):11775. https://doi.org/10.3390/app122211775

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Wang, Yili, Jiaxuan Guo, Chengsheng Yuan, and Baozhu Li. 2022. "Sentiment Analysis of Twitter Data" Applied Sciences 12, no. 22: 11775. https://doi.org/10.3390/app122211775

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Wang, Y., Guo, J., Yuan, C., & Li, B. (2022). Sentiment Analysis of Twitter Data. Applied Sciences, 12(22), 11775. https://doi.org/10.3390/app122211775

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