User profiles on social media platforms serve as a virtual introduction of the users. People often maintain their online profile space to reflect their likes and values. Further, how users maintain their profile helps them develop relationship with coveted audience BIBREF0. A user profile on Twitter is composed of several attributes with some of the most prominent ones being the profile name, screen name, profile image, location, description, followers count, and friend count. While the screen name, display name, profile image, and description identify the user, the follower and friend counts represent the user's social connectivity. Profile changes might represent identity choice at a small level. However, previous studies have shown that on a broader level, profile changes may be an indication of a rise in a social movement BIBREF1, BIBREF2.In this work, we conduct a large-scale study of the profile change behavior of users on Twitter during the 2019 general elections in India. These elections are of interest from the perspective of social media analysis for many reasons. Firstly, the general elections in India were held in 7 phases from 11th April, 2019 to 19th May, 2019. Thus, the elections serve as a rich source of data for social movements and changing political alignments throughout the two months. Secondly, the increase in the Internet user-base and wider adoption of smartphones has made social media outreach an essential part of the broader election campaign. Thus, there exists a considerable volume of political discourse data that can be mined to gain interesting insights. Twitter was widely used for political discourse even during the 2014 general elections BIBREF3 and the number was bound to increase this year. A piece of evidence in favor of this argument is the enormous 49 million followers that Narendra Modi, the Prime Minister of India has on Twitter.We believe profile attributes have significant potential to understand how social media played a vital role in the election campaign by political parties as well as the supporters during the #LokSabhaElections2019. A prominent example of the use of profile changes for political campaigning is the #MainBhiChowkidar campaign launched by the Bhartiya Janta Party (BJP) during the #LokSabhaElections2019. In Figure FIGREF2, we show the first occurrence of #MainBhiChowkidar campaign on Twitter which was launched in response to an opposition campaign called “Chowkidar chor hai” (The watchman is a thief). On 17th March 2019, the Indian Prime Minister Narendra Modi stepped up this campaign and added Chowkidar (Watchman) to his display name. This spurred off a social movement on Twitter with users from across the nation and political spectrum updating their profiles on Twitter by prefixing “Chowkidar” to their display name BIBREF4. We are thus interested in studying the different facets of this campaign, in particular, the name changes in the display name of accounts, verified, and others.In Figure FIGREF3, we compare the Twitter profiles of the two leaders of national parties during Lok Sabha Election, 2019. The top profile belongs to @narendramodi (Narendra Modi), PM of India and member of the ruling party Bharatiya Janata Party (BJP), while the bottom profile belongs to @RahulGandhi (Rahul Gandhi), president of Indian National Congress (INC). Figure FIGREF3 shows a snapshot of both leaders before, during, and after the Lok Sabha Elections in 2019. The ruling leader showed brevity in the use of his profile information for political campaigning and changed his profile information during and after the elections, which was not the case with opposition.Intending to understand the political discourse from the lens of profile attributes on social media, we address the following questions.To analyze the importance of user-profiles in elections, we need to distinguish between the profile change behavior of political accounts and follower accounts. This brings us to the first research question:RQ1 [Comparison]: How often do political accounts and common user accounts change their profile information and which profile attributes are changed the most.The political inclination of Twitter users can be classified based on the content of their past tweets and community detection methods BIBREF5. However, the same analysis has not been extended to the study of user-profiles in detail. We thus, study the following:RQ2 [Political Inclination]: Do users reveal their political inclination on Twitter directly/indirectly using their user profiles only?Behavior contagion is a phenomenon where individuals adopt a behavior if one of their opinion leaders adopts it BIBREF6. We analyze the profile change behavior of accounts based on the “Chowkidar” movement with the intent to find behavior contagion of an opinion leader. Thus, our third research question is:RQ3 [Behavior Contagion]: Can profile change behavior be catered to behavior contagion effect where followers tend to adopt an opinion as their opinion leader adopts it?We are interested in knowing the common attributes of the people who took part in the chowkidar movement. To characterize these users, we need to analyze the major topic patterns that these users engage in. Thus, we ask the question:RQ4 [Topic Modelling]: What are the most discussed topics amongst the users that were part of the Chowkidar campaign?In summary, our main contributions are:We collect daily and weekly profile snapshots of $1,293$ political handles on Twitter and over 55 million of their followers respectively over a period of two months during and after the #LokSabhaElections2019. We will make the data and code available on our website.We analyze the political and follower handles for profile changes over the snapshots and show that the political handles engage in more profile change behavior. We also show that certain profile attributes are changed more frequently than others with subtle differences in the behavior of political and follower accounts.We show users display support for a political party on Twitter through both organic means like party name mentions on their profile, and inorganic means such as showing support for a movement like #MainBhiChowkidar. We analyze the Chowkidar movement in detail and demonstrate that it illustrates a contagion behavior.We perform topic modelling of the users who took part in the Chowkidar movement and show that they were most likely Narendra Modi supporters and mostly discussed political topics on Twitter.Our data collection process is divided into two stages. We first manually curate a set of political accounts on Twitter. We use this set of users as a seed set and then collect the profile information of all the followers of these handles.Seed set: To answer the RQ1, we first manually curate a set of $2,577$ Twitter handles of politicians and official/unofficial party handles involved in Lok Sabha Elections 2019. Let this set of users be called $\mathbf {U}$. Of the $2,577$ curated handles, only $1,293$ were verified at the beginning of April. Let this set of verified handles be called $\mathbf {P}$. We collect a snapshot of the profile information of $\mathbf {P}$ daily for two months from 5th April - 5th June 2019.Tracked set: We use the set $P$ of verified Twitter handles as a seed set and collect the profile information of all their followers. We hypothesize that the users who follow one or more political handles are more likely to express their political orientation on Twitter. Thus, we consider only the followers of all the political handles in our work. The total number of followers of all the handles in set $\mathbf {P}$ are 600 million, of which only $55,830,844$ users are unique. Owing to Twitter API constraints, we collect snapshots of user-profiles for these handles only once a week over the two months of April 5 - June 5, 2019. There were a total of 9 snapshots, of which 7 coincided with the phases of the election. The exact dates on which the snapshots were taken has been mentioned in Table TABREF10. As we collect snapshots over the of two months, the number of followers of political handles in set $P$ can increase significantly. Similarly, a small subset of followers of handles in $P$ could also have been suspended/deleted. To maintain consistency in our analysis, we only use those handles for our analysis that are present in all the 9 snapshots. We call this set of users as $\mathbf {S}$. The set $\mathbf {S}$ consists of 49,433,640 unique accounts.Dataset: Our dataset consists of daily and weekly snapshots of profile information of users in set $\mathbf {S}$ and $\mathbf {P}$ respectively. We utilize the Twitter API to collect the profile information of users in both the above sets. Twitter API returns a user object that consists of a total of 34 attributes like name, screen name, description, profile image, location, and followers. We further pre-process the dataset to remove all the handles that were inactive for a long time before proceeding with further analysis.In set $\mathbf {S}$, more than 15 million out of the total 49 million users have made no tweets and have marked no favourites as well. We call the remaining 34 million users as Active users. Of the Active users, only 5 million users have made a tweet in year 2019. The distribution of the last tweet time of all users in set $S$ is shown in Figure FIGREF14. The 5 million twitter users since the start of 2019 fall in favor of the argument that a minority of users are only responsible for most of the political opinions BIBREF7. We believe there is a correlation between Active users and users who make changes in profile attribute. We, therefore use the set of 34 million users(Active Users of set $\mathbf {S}$ ) for our further analysis.In this section we characterize the profile change behavior of political accounts (Set $P$) and follower accounts (Set $S$).Increase in the Internet user-base and widespread adoption of smartphones in the country has led to an increase in the importance of social media campaigns during the elections. This is evident by the fact that in our dataset (Set $U$), we found that a total of 54 handles got verified throughout 61 snapshots. Moreover the average number of followers of handles in set $P$ increased from $3,08,716.84$ to $3,19,881.09$ over the 61 snapshots. Given that the average followers of set $P$ increased by approximately $3\%$ and 54 profile handles got verified in the span of 61 days, we believe that efforts of leaders on social media campaign can't be denied.We consider 5 major profile attributes for further analysis. These attributes are username, display name, profile image, location and description respectively. The username is a unique handle or screen name associated with each twitter user that appears on the profile URL and is used to communicate with each other on Twitter. Some username examples are $@narendramodi$, $@RahulGandhi$ etc. The display name on the other hand, is merely a personal identifier that is displayed on the profile page of a user, e.g. `Narendra Modi', `Rahul Gandhi', etc. The description is a string to describe the account, while the location is user-defined profile location. We considered the 5 profile attributes as stated above since these attributes are key elements of a users identity and saliently define users likes and values BIBREF2.For the set of users in $P$, the total number of changes in these 5 profile attributes over 61 snapshots is 974. Figure FIGREF12 shows the distribution of profile changes for specific attributes over all the 61 snapshots. The most changed attribute among the political handles is the profile image followed by display name. In the same Figure, there is a sharp increase in the number of changes to the display name attribute on 23rd May, 2019. The increase is because @narendramodi removed Chowkidar from the display name of his Twitter handle which resulted in many other political handles doing the same. Another interesting trend is that none of the handles changed their username over all the snapshots. This could be attributed to the fact that Twitter discourages a change of usernames for verified accounts as the verified status might not remain intact after the change BIBREF8.To characterize the profile changing behavior amongst the followers , we study the profile snapshots of all the users in set $S$ over 9 snapshots.Of all the active user accounts, $1,363,499$ users made at least one change to their profile attributes over all the snapshots. Thus, over $3\%$ of all the active users engaged in some form of profile change activity over the 9 snapshots. Of these $1,363,499$ users, more than $95\%$ of the users made only 1 change to their profile, and around 275 users made more than 20 changes. On an average, each one of these $1,363,499$ users made about 2 changes to their profiles with a standard deviation of $1.42$.In order to compare the profile change behavior of political accounts and follower accounts, we analyzed the profile changes of set $\mathbf {P}$ over the 9 snapshots only. For the same 9 snapshots, $54.9\%$ of all users in set $\mathbf {P}$ made at least one change to their profile attributes. This is in sharp contrast to the the users of set $\mathbf {S}$, where only $3\%$ of users made any changes to their profile attributes. Similarly, users of set $\mathbf {P}$ made $75.32\%$ changes to their profiles on an average, which is 25 times more than the set $\mathbf {S}$.INSIGHT 1: Political handles are more likely to engage in profile changing behavior as compared to their followers.In Figure FIGREF15, we plot the number of changes in given attributes over all the snapshots for the users in set $S$. From this plot, we find that not all the attributes are modified at an equal rate. Profile image and Location are the most changed profile attributes and account for nearly $34\%$ and $25\%$ respectively of the total profile changes in our dataset. We analyze the trends in Figure FIGREF12 and find that the political handles do not change their usernames at all. This is in contrast to the trend in Figure FIGREF15 where we see that there are a lot of handles that change their usernames multiple times. The most likely reason for the same is that most of the follower handles are not verified and would not loose their verified status on changing their username.The follower handles also use their usernames to show support to a movement or person and revert back to their original username later. Out of the $79,991$ username changes, $1,711$ users of set ${S}$ went back and forth to the same name which included adding of Election related keywords. Examples of few such cases in our dataset are shown in Table TABREF16.INSIGHT 2: Users do not change all profile attributes equally, and the profile attributes that political and follower handles focus on are different.Change in an attribute in the profile involves replacing an existing attribute with a new one. We analyze the similarity between the current, new display names and usernames used by users in set $\mathbf {P}$ and $\mathbf {S}$ respectively. For this analysis, we consider only the users who have changed their username or display name at least once in all 9 snapshots. We use the Longest Common Subsequence (LCS) to compute the similarity between two strings. Thus, for each user, we compute the average LCS score between all possible pairs of unique display names and usernames adopted by them. A high average LCS score indicates that the newer username or display name were not significantly different from the previous ones.The graph in Figure FIGREF18 shows that nearly $80\%$ of the users in set $S$ made more significant changes to their Display Names as compared to the political handles. (This can be seen by considering a horizontal line on the graph. For any given fraction of users, the average LCS score of set $S$ (Followers) is lesser than set $P$ (Politicians) for approximately $80\%$ percent of users). For around $10\%$ of the users in set $P$, the new and old profile attributes were unrelated (LCS score < $0.5$) and for users in set $S$, this value went up to $30\%$.INSIGHT 3: Political handles tend to make new changes related to previous attribute values. However, the followers make comparatively less related changes to previous attribute values.In this section, we first describe the phenomenon of mention of political parties names in the profile attributes of users. This is followed by the analysis of profiles that make specific mentions of political handles in their profile attributes. Both of these constitute an organic way of showing support to a party and does not involve any direct campaigning by the parties. We also study in detail the #MainBhiChowkidar campaign and analyze the corresponding change in profile attributes associated with it.To sustain our hypothesis of party mention being an organic behavior, we analyzed party name mentions in the profiles of users in set $\mathbf {S}$. For this analysis, we focused on two of the major national parties in India, namely Indian National Congress (INC) and Bhartiya Janta Party (BJP). We specifically search for mentions of the party names and a few of its variants in the display name, username and description of the user profiles. We find that $50,432$ users have mentioned “BJP” (or its variants) on their description in the first snapshot of our data itself. This constitutes approximately $1\%$ of the total number of active users in our dataset, implying a substantial presence of the party on Twitter. Moreover, $2,638$ users added “BJP” (or its variants) to their description over the course of data collection and $1,638$ users removed “BJP” from their description. Table TABREF20 shows the number of mentions of both parties in the different profile attributes.We observe that a lot of users in our dataset wrote that they are proud to be followed by a famous political handle in their description. We show example of such cases in Table TABREF22.We perform an exhaustive search of all such mentions in the description attribute of the users and find $1,164$ instances of this phenomenon. This analysis and the party mention analysis in Section SECREF19, both testify that people often display their political inclination on Twitter via their profile attributes itself.INSIGHT 4: Twitter users often display their political inclinations in their profile attributes itself and are pretty open about it.As discussed is Section SECREF1, @narendramodi added “Chowkidar” to his display name in response to an opposition campaign called “Chowkidar chor hai”. In a coordinated campaign, several other leaders and ministers of BJP also changed their Twitter profiles by adding the prefix Chowkidar to their display names. The movement, however, did not remain confined amongst the members of the party themselves and soon, several Twitter users updated their profiles as well. We opine that the whole campaign of adding Chowkidar to the profile attributes show an inorganic behavior, with political leaders acting as the catalyst. An interesting aspect of this campaign was the fact that the users used several different variants of the word Chowkidar while adding it to their Twitter profiles. Some of the most common variants of Chowkidar that were present in our dataset along with its frequency of use is shown in Figure FIGREF24.We utilize a regular expression query to exhaustively search all the variants of the word Chowkidar in our dataset. We found $2,60,607$ instances of users in set $S$ added Chowkidar (or its variants) to their display names. These $2,60,607$ instances comprised a total of 241 unique chowkidar variants of which 225 have been used lesser than 500 times. We also perform the same analysis for the other profile attributes like description and username as well. The number of users who added Chowkidar to their description and username are $14,409$ and $12,651$ respectively. The union and intersection of all these users are $270,945$ and 727 respectively, implying that most users added Chowkidar to only one of their profile attributes.We believe, the effect of changing the profile attribute in accordance with Prime Minister's campaign is an example of inorganic behavior contagion BIBREF6, BIBREF9. The authors in BIBREF6 argue that opinion diffuses easily in a network if it comes from opinion leaders who are considered to be users with a very high number of followers. We see a similar behavior contagion in our dataset with respect to the Chowkidar movement.We analyze the similarity of the display names with respect to the behavior contagion of Chowkidar movement. In the CDF plot of Figure FIGREF18, a significant spike is observed in the region of LCS values between $0.6$-$0.8$. This spike is caused mostly due to the political handles, who added Chowkidar to their display names which accounted for $95.7\%$ of the users in this region. In set $P$, a total of 373 people added the specific keyword Chowkidar to their display names of which 315 lie in the normalized LCS range of $0.6$ to $0.8$. We perform similar analysis on the users of set $S$ and find that around $57\%$ of the users within the region of $0.6$-$0.8$ LCS added specific keyword Chowkidar to their display names. We perform similar analysis on other campaign keywords like Ab Hoga Nyay as well but none of them have the same level of influence or popularity like that of the “Chowkidar” and hence we call it as the “Chowkidar Movement”.On 23rd May, Narendra Modi removed Chowkidar from his Twitter profile and urged others to do the same as shown in Figure FIGREF25. While most users followed Narendra Modi's instructions and removed Chowkidar from their profiles, some users still continued to add chowkidar to their names. The weekly addition and removal of Chowkidar from user profiles is presented in detail in Figure FIGREF26. Thus, the behavior contagion is evident from the fact that after Narendra Modi removed Chowkidar on 23rd May, majority of the population in set $\mathbf {S}$ removed it too.INSIGHT 5: The Chowkidar movement was very widespread and illustrated contagion behavior.A large number of people were part of the Chowkidar movement. Hence, it is important to gauge their level of interest/support to the party in order to accurately judge the impact of the campaign. We thus perform topic modelling of the description attribute of these users. We utilize the LDA Mallet model BIBREF10 for topic modelling after performing the relevant preprocessing steps on the data. We set the number of topics to 10 as it gave the highest coherence score in our experiments. The 10 topics and the 5 most important keywords belonging to these topics are shown below in Figure FIGREF27. These topics reveal several interesting insights. The most discussed topic amongst these users involves Narendra Modi and includes words like “namo” (slang for Narendra Modi), supporter, nationalist and “bhakt” (devout believer). A few other topics also involve politics like topic 2 and topic 5. Topic 2, in particular contains the words chowkidar, student, and study, indicating that a significant set of users who were part of this campaign were actually students. Topic number 0 accounts for more than $40\%$ of the total descriptions, which essentially means that most of the people involved in this movement were supporting BJP or Narendra Modi. We also plot the topics associated with each user's description on a 2D plane by performing tSNE BIBREF11 on the 10 dimensional data to ascertain the variation in the type of topics. The topics are pretty distinct and well separated on the 2D plane as can be seen in Figure FIGREF30.INSIGHT 6: The users who were part of the chowkidar movement were mostly Narendra Modi supporters and engaged in political topicsSocial Media profiles are a way to present oneself and to cultivate relationship with like minded or desired audience. BIBREF0, BIBREF12. With change in time and interest, users on Twitter change their profile names, description, screen names, location or language BIBREF2. Some of these changes are organic BIBREF13, BIBREF2, while other changes can be triggered by certain events BIBREF14, BIBREF15. In this section, we look into the previous literature which are related to user profile attribute's change behavior. We further look into how Twitter has been used to initiate or sustain movements BIBREF14, BIBREF15, BIBREF1. Finally we investigate how the contagion behavior adaptation spread through opinion leaders BIBREF6, BIBREF9 and conclude with our work's contribution to the literature.Previous studies have focused on change in username attribute extensively, as usernames in Twitter helps in linkability, mentions and becomes part of the profile's URL BIBREF16, BIBREF13, BIBREF17. While the focus of few works is to understand the reason the users change their profile names BIBREF16, BIBREF2, others strongly argue username change is a bad idea BIBREF17, BIBREF13. Jain et al. argue that the main reason people opt to change their username is to leverage more tweet space. Similarly, the work by Mariconti et al. suggests that the change in username may be a result of name squatting, where a person may take away the username of a popular handle for malicious reasons. More recent studies in the area have focused on several profile attributes changes BIBREF2. They suggest that profile attributes can be used to represent oneself at micro-level as well as represent social movement at macro-level.The role of Social Media during social movements have been studied very extensively BIBREF14, BIBREF18, BIBREF19, BIBREF15. With the help of Social Media, participation and ease to express oneself becomes easy BIBREF1. There have been many studies where Twitter has been used to gather the insight of online users in the form of tweets BIBREF1, BIBREF14, BIBREF15. The authors in BIBREF14 study the tweets to understand how people reacted to decriminalization of LGBT in India. The study of Gezi Park protest shows how the protest took a political turn, as people changed their usernames to show support to their political leaders BIBREF1.The success of the party “Alternative for Deutschland(AFD)” in German Federal Elections, 2017 can be catered to its large online presence BIBREF18. The authors in BIBREF18 study the tweets and retweets networks during the German elections and analyze how users are organized into communities and how information flows between them. The role of influential leaders during elections has also been studied in detail in studies like BIBREF20. This brings us to the study of how influential leaders contribute to spread and adaptation of events.The real and virtual world are intertwined in a way that any speech, event, or action of leaders may trigger the changes is behavior of people online BIBREF1, BIBREF21. Opinion leaders have been defined as `the individuals who were likely to influence other persons in their immediate environment.' BIBREF22 Opinion leaders on social media platforms help in adoption of behavior by followers easily BIBREF9, BIBREF6. The performance and effectiveness of the opinion leader directly affect the contagion of the leader BIBREF9. On Twitter, opinion leaders show high motivation for information seeking and public expression. Moreover, they make a significant contribution to people's political involvement BIBREF21.Our work contributes to this literature in two major ways. First, we investigate how profile attribute changes are similar or different from the influential leaders in the country and how much of these changes are the result of the same. Then we see how the users change their profile information in the midst of election in the largest democracy in the world.In this paper, we study the use of profile attributes on Twitter as the major endorsement during #LokSabhaElectios2019. We identify $1,293$ verified political leader's profile and extract $49,433,640$ unique followers. We collect the daily and weekly snapshots of the political leaders and the follower handles from 5th April, 2019 to 5th June, 2019. With the constraint of Twitter API, we collected a total of 9 snapshots of the follower's profile and 61 snapshots of Political handles. We consider the 5 major attributes for the analysis, including, Profile Name, Username, Description, Profile Image, and Location.Firstly, we analyze the most changed attributes among the 5 major attributes. We find that most of the users made at-most 4 changes during the election campaign, with profile image being the most changed attribute for both the political as well as follower handles. We also show that political handles made more changes to profile attributes than the follower handles. About $80\%$ changes made by the followers in the period of data collection was related to #LokSabhaElectios2019. While the profile handles made changes, the changes mostly included going back and forth to same profile attribute, with the change in attribute being active support to a political party or political leader.We argue that we can predict the political inclination of a user using just the profile attribute of the users. We further show that the presence of party name in the profile attribute can be considered as an organic behavior and signals support to a party. However, we argue that the addition of election campaign related keywords to the profile is a form of inorganic behavior. The inorganic behavior analysis falls inline with behavior contagion, where the followers tend to adapt to the behavior of their opinion leaders. The “Chowkidar movement” showed a similar effect in the #LokSabhaElectios2019, which was evident by how the other political leaders and followers of BJP party added chowkidar to their profile attributes after @narendramodi did. We thus, argue that people don't shy away from showing support to political parties through profile information.We believe our analysis will be helpful to understand how social movement like election are perceived and sustained through profile attributes on social media. Our findings provide baseline data for study in the direction of election campaign and to further analyze people's perspective on elections.

Q: What profile metadata is used for this analysis?

Q: What are the organic and inorganic ways to show political affiliation through profile changes?
A: Organic: mention of political parties names in the profile attributes, specific mentions of political handles in the profile attributes.
Inorganic:  adding Chowkidar to the profile attributes, the effect of changing the profile attribute in accordance with Prime Minister's campaign, the addition of election campaign related keywords to the profile.
Mentioning of political parties names and political twitter handles is the organic way to show political affiliation; adding Chowkidar or its variants to the profile is the inorganic way.

Q: How do profile changes vary for influential leads and their followers over the social movement?
A: Influential leaders are more likely to change their profile attributes than their followers; the leaders do not change their usernames, while their followers change their usernames a lot; the leaders  tend to make new changes related to previous attribute values, while the followers make comparatively less related changes to previous attribute values.