Bernard J Jansen
Dados Biográficos
| ID | 118991 |
|---|---|
| NOME | Bernard J Jansen |
| PRENOMES | Bernard J |
| SOBRENOME | Jansen |
| ASSINATURA | JANSEN B J |
| AFILIAÇÕES | Hamad bin Khalifa University |
| ORCID | 0000-0002-6468-6609 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 38 |
| TOTAL DE CITAÇÕES | 22 |
| TOTAL COMO AUTOR | 37 |
| TOTAL COMO EDITOR | 1 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1999 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 2 |
Agentic Engagement with Educational AI Chatbots Among Pre-service Teachers
Agentic engagement captures students’ intentional efforts to shape their learning environment and co-create their educational experiences. However, there is limited understanding of why engagement with educational artificial intelligence (AI) chatbots varies among students, particularly among pre-service teachers, and agentic engagement is often overlooked in AI-mediated instruction. This mixed-method study explored engagement with an AI chatbot …
AI-generated personas
What it means to learn with GenAI
This Q study explores how student teachers conceptualize learning with GenAI and how their perspectives align with or challenge existing educational frameworks. Thirty-one student teachers sorted 44 statements derived from contemporary learning theories. The factor analysis revealed three distinct viewpoints: (1) students who view GenAI as a collaborative partner (F-1 GenAI is my sidekick), (2) those who approach it with scepticism (F-2 GenAI is …
What Is the Role of Personas in Environmental Sustainability Studies? A Systematic Review of 36 Research Articles
User personas are important tools for user understanding in human‐computer interaction (HCI), and understanding how personas contribute to environmental sustainability across research and practice contexts is increasingly important. Our systematic review of 36 articles on persona research in environmental sustainability reveals four key patterns. First, persona research in environmental sustainability primarily focuses on the SDGs of industry inn…
Why Are Personas the Way They Are
User personas are well-established in user-centered design. However, the persona creation process is not well understood. Addressing this gap, this study investigates how 29 students created personas from a realistic customer dataset. We identified six main persona creation strategies: (1) data-oriented strategy, (2) diversity strategy, (3) imaginative strategy, (4) sociability strategy, (5) self-centric strategy, and (6) mixed strategy. The most…
Generative AI personas considered harmful? Putting forth twenty challenges of algorithmic user representation in human-computer interaction
Shows how GenAI fundamentally transforms existing persona development issues through evolutionary amplification rather than creating entirely new problems, with traditional biases becoming algorithmic discrimination and manual inconsistencies becoming convincing AI hallucinations. • Reveals how traditional limitations manifest differently in GenAI contexts across transparency, fairness, reliability, and control domains, with expert validation sho…
Demographics do not matter
Demographics are considered foundational information in most persona profiles. However, the effect of persona ethnicity and gender on designers’ identification with the persona has limited evaluation in the human-computer interaction literature. We conducted a study with 64 professional designers from the United States, Indian, Korean, and Mexican nationalities to investigate the effects of AI-generated persona ethnicity and gender on persona ide…
PersonaCraft
The effect of religiosity and cultural conservatism on digital privacy concerns
This study examines the influence of religiosity and cultural conservatism on digital privacy concerns (DPC) among internet users from five Arab countries. Across four waves (2017–2022), in-person and telephone interviews captured responses from 18,160 adults in Saudi Arabia, Tunisia, Lebanon, Qatar, and the United Arab Emirates (UAE). We fitted random-intercept multilevel regressions that nest individuals within country-by-wave clusters, allowin…
Does negative buzz result in social media discontinuation? Investigating the effects of negative word of mouth in the United States, India, and Finland
Negative Word-of-mouth (WOM) significantly influences how users form attitudes toward digital platforms, yet little is known about its role in social media discontinuation. Grounded in Social Cognitive Theory (SCT), this study investigates how two types of negative WOM, online and offline, influence users’ perceptions of privacy and social media discontinuation intent among WhatsApp users in the United States (n=309), India (n=271), and Finland (…
Politics on YouTube
Technology-mediated group toxicity polarization is a major socio-technological issue of our time. For better large-scale monitoring of polarization among social media news content, we quantify the toxicity of news video comments using a Toxicity Polarization Score. For polarizing news videos, our premise is that the comments’ toxicity approximates either an “M” or “U” shaped distribution—that is, there is unevenly balanced toxicity among the comm…
The realness of fakes
Deepfakes, realistic portrayals of people that do not exist, have garnered interest in research and industry. Yet, the contributions of deepfake technology to human-computer interaction remain unclear. One possible value of deepfake technology is to create more immersive user personas. To test this premise, we use a commercial-grade service to generate three deepfake personas (DFs). We also create counterparts of the same persona in two tradition…
How does an imaginary persona's attractiveness affect designers' perceptions and IT solutions? An experimental study on users' remote working needs
Purpose The “what is beautiful is good” (WIBIG) effect implies that observers tend to perceive physically attractive people in a positive light. The authors investigate how the WIBIG effect applies to user personas, measuring designers' perceptions and task performance when employing user personas for the design of information technology (IT) solutions. Design/methodology/approach In a user experiment, the authors tested six different personas wi…
Fair compensation of crowdsourcing work
Compensating crowdworkers for their research participation often entails paying a flat rate to all participants, regardless of the amount of time they spend on the task or skill level. If the actual time required varies considerably between workers, flat rates may yield unfair compensation. To study this matter, we analyzed three survey studies with varying complexity. Based on the United Kingdom minimum wage and actual task completion times, we …
What really matters
This research characterises user engagement of approximately 3,000,000 news postings of 53 news outlets and 50,000,000 associated user comments during 8 months on 5 social media platforms (i.e. Facebook, Instagram, Twitter, YouTube, and Reddit). We investigate the effect of sentiments and topics on user engagement across four levels of user engagement expressions (i.e. views, likes, comments, cross-platform posting). We find that sentiments and t…
Is Death Only the Beginning? How People Mourn Artificial Characters in Social Media
We analyze the audience response to the death of narrative-driven fictitious characters with predetermined fates, whether part of a virtual or cinematic story, and specifically from video games and TV series. Our aim is to contribute to the studies of identification and empathy with fictitious characters in media, as well as to close the research gap around these studies by specifically focusing on the death of the characters. We collected 3000 o…
International Conference on Cognitive based Information Processing and Applications (Cipa 2021)
How does varying the number of personas affect user perceptions and behavior? Challenging the ‘small personas’ hypothesis
Studies in human-computer interaction recommend creating fewer than ten personas, based on stakeholders’ limitations to cognitively process and use personas. However, no existing studies offer empirical support for having fewer rather than more personas. Investigating this matter, thirty-seven participants interacted with five and fifteen personas using an interactive persona system, choosing one persona to design for. Our study results from eye-…
Do players communicate differently depending on the champion played? Exploring the Proteus effect in League of Legends
Are Data-Driven Personas Considered Harmful
In this work, we build on research on data-driven personas to present what might be “wrong with them”. From wrong assumptions by the client and wrong applications of methods to imbalanced, messy, or superficial data; a lack of communication regarding how these personas are created; and issues with usability, there are a plethora of issues that plague data-driven personas. We conclude by contemplating whether data-driven personas are even worthwhi…
The ability of personas
Persona Perception Scale
Classifying online corporate reputation with machine learning
Purpose User-generated social media comments can be a useful source of information for understanding online corporate reputation. However, the manual classification of these comments is challenging due to their high volume and unstructured nature. The purpose of this paper is to develop a classification framework and machine learning model to overcome these limitations. Design/methodology/approach The authors create a multi-dimensional classifica…
From 2,772 segments to five personas
Understanding users in the era of social media is challenging, requiring organizations to adopt novel computation-aided approaches. To exemplify such an approach, we retrieved information on millions of interactions with YouTube video content from a major Middle Eastern media outlet, to automatically generate personas that capture how different audience segments interact with thousands of individual content pieces. Then, we used qualitative data …
Aggregate effects of advertising decisions
Purpose The purpose of this paper is to model group advertising decisions, which are the collective decisions of every single advertiser within the set of advertisers who are competing in the same auction or vertical industry, and examine resulting market outcomes, via a proposed simulation framework named Experimental Platform for Search Engine Advertising (EXP-SEA) supporting experimental studies of collective behaviors in the context of search…
Using the web to look for work
Purpose The web is now a significant component of the recruitment and job search process. However, very little is known about how companies and job seekers use the web, and the ultimate effectiveness of this process. The specific research questions guiding this study are: how do people search for job‐related information on the web? How effective are these searches? And how likely are job seekers to find an appropriate job posting or application? …
Searching the Web
Web search services are now a major source of information for a growing number of people. We need to know more about how users search Web search engines to improve the effectiveness of their information retrieval. This paper reports results from a major study exploring users’ information searching behavior on the EXCITE Web search engine. The study is the first to investigate Web users’ successive searching behavior as they conduct related search…
Classifying online corporate reputation with machine learning
Purpose User-generated social media comments can be a useful source of information for understanding online corporate reputation. However, the manual classification of these comments is challenging due to their high volume and unstructured nature. The purpose of this paper is to develop a classification framework and machine learning model to overcome these limitations. Design/methodology/approach The authors create a multi-dimensional classifica…
Searching for salvation
The goals of this research were to answer three questions. How predominant is religious searching online? How do people interact withWeb search engines when searching for religious information? How effective are these interactions in locating relevant information? Specifically, referring to a US demographic, we analyzed five data sets from Web search engine, collected between 1997 and 2005, of over a million queries each in order to investigate r…
Overlap among major web search engines
Purpose This paper reports the findings of a major study examining the overlap among results retrieved by three major web search engines. The goal of the research was to: measure the overlap across three major web search engines on the first results page overlap (i.e. share the same results) and the differences across a wide range of user defined search terms; determine the differences in the first page of search results and their rankings (each …
Use of query reformulation and relevance feedback by Excite users
Examines the use of query reformulation, and particularly the use of relevance feedback by users of the Excite Web search engine. A total of 985 user search sessions from a data set of 18,113 user search sessions containing 51,473 queries were examined. Includes a qualitative and quantitative analysis of 191 user sessions including more than one query, to examine patterns of user query reformulation; and second, all 804 user sessions including re…
Conversing and searching
Purpose It is important to measure the interaction between conversing in social media and searching on the web in order to understand the impact on electronic word-of-mouth marketing. The paper aims to discuss this issue. Design/methodology/approach The authors research the relationship between social media conversing and web searching concerning brands on three major social soundtrack platforms (Instagram, Twitter, and Tumblr) and on a major web…
Classifying the user intent of web queries using k ‐means clustering
Purpose – Web search engines are frequently used by people to locate information on the Internet. However, not all queries have an informational goal. Instead of information, some people may be looking for specific web sites or may wish to conduct transactions with web services. This paper aims to focus on automatically classifying the different user intents behind web queries
Searching the Web
Web search services are now a major source of information for a growing number of people. We need to know more about how users search Web search engines to improve the effectiveness of their information retrieval. This paper reports results from a major study exploring users’ information searching behavior on the EXCITE Web search engine. The study is the first to investigate Web users’ successive searching behavior as they conduct related search…
Use of query reformulation and relevance feedback by Excite users
Examines the use of query reformulation, and particularly the use of relevance feedback by users of the Excite Web search engine. A total of 985 user search sessions from a data set of 18,113 user search sessions containing 51,473 queries were examined. Includes a qualitative and quantitative analysis of 191 user sessions including more than one query, to examine patterns of user query reformulation; and second, all 804 user sessions including re…
The limits of unilateralism from a European perspective
Unilateralism' is a sensitive issue in Europe. However, it is ill-defined and a serious effort is required to define this term of art. It needs to be contrasted to terms such as 'multilateralism', 'bilateralism', and 'international cooperation'. Moreover, the term 'unilateralism' is closely tied to the territorial limitations of state jurisdiction. This article focuses on the limits of unilateralism without denying that there may be exceptional i…
Assisting the searcher
Much previous research on improving information retrieval applications has focused on developing entirely new systems with advanced searching features. Unfortunately, most users seldom utilize these advanced features. This research explores the use of a software agent that assists the user during the search process. The agent was developed as a separate, stand‐alone component to be integrated with existing information retrieval systems. The perfo…
Using the web to look for work
Purpose The web is now a significant component of the recruitment and job search process. However, very little is known about how companies and job seekers use the web, and the ultimate effectiveness of this process. The specific research questions guiding this study are: how do people search for job‐related information on the web? How effective are these searches? And how likely are job seekers to find an appropriate job posting or application? …
Sexual and pornographic Web searching
The level of sexual or pornographic Web searching is a major subject of political debate, particularly in the United States. United States federal prosecutors recently, as of 2006, requested that the major Web search engines, Yahoo, American Online (AOL), MSN and Google provide a sampling of their search queries and indexes of Web sites, in order to allow the examination of various aspects of pornographic searching and retrieval. This paper exami…
Overlap among major web search engines
Purpose This paper reports the findings of a major study examining the overlap among results retrieved by three major web search engines. The goal of the research was to: measure the overlap across three major web search engines on the first results page overlap (i.e. share the same results) and the differences across a wide range of user defined search terms; determine the differences in the first page of search results and their rankings (each …
Twitter power
In this paper we report research results investigating microblogging as a form of electronic word‐of‐mouth for sharing consumer opinions concerning brands. We analyzed more than 150,000 microblog postings containing branding comments, sentiments, and opinions. We investigated the overall structure of these microblog postings, the types of expressions, and the movement in positive or negative sentiment. We compared automated methods of classifying…
The ubiquitous and increasingly significant status message
research-article Share on The ubiquitous and increasingly significant status message Authors: Bernard J. Jansen The Pennsylvania State University The Pennsylvania State UniversityView Profile , Abdur Chowdury Twitter, Inc. Twitter, Inc.View Profile , Geoff Cook myyearbook.com myyearbook.comView Profile Authors Info & Claims InteractionsVolume 17Issue 3May + June 2010 pp 15–17https://doi.org/10.1145/1744161.1744165Published:01 May 2010Publication …
Classifying the user intent of web queries using k ‐means clustering
Purpose – Web search engines are frequently used by people to locate information on the Internet. However, not all queries have an informational goal. Instead of information, some people may be looking for specific web sites or may wish to conduct transactions with web services. This paper aims to focus on automatically classifying the different user intents behind web queries
Searching for salvation
The goals of this research were to answer three questions. How predominant is religious searching online? How do people interact withWeb search engines when searching for religious information? How effective are these interactions in locating relevant information? Specifically, referring to a US demographic, we analyzed five data sets from Web search engine, collected between 1997 and 2005, of over a million queries each in order to investigate r…
Availability of snus and its sale to minors in a large Minnesota city
Prevalence of snus sales to minors appeared to be higher than that of cigarette sales to minors according to the 2011 Synar report. Futures studies are needed to determine whether tobacco retailers are more likely to sell snus than cigarettes to minors. Interventions such as public and retailer policies are needed to reduce the likelihood of tobacco retailers selling snus to minors
Conversing and searching
Purpose It is important to measure the interaction between conversing in social media and searching on the web in order to understand the impact on electronic word-of-mouth marketing. The paper aims to discuss this issue. Design/methodology/approach The authors research the relationship between social media conversing and web searching concerning brands on three major social soundtrack platforms (Instagram, Twitter, and Tumblr) and on a major web…
From 2,772 segments to five personas
Understanding users in the era of social media is challenging, requiring organizations to adopt novel computation-aided approaches. To exemplify such an approach, we retrieved information on millions of interactions with YouTube video content from a major Middle Eastern media outlet, to automatically generate personas that capture how different audience segments interact with thousands of individual content pieces. Then, we used qualitative data …
Aggregate effects of advertising decisions
Purpose The purpose of this paper is to model group advertising decisions, which are the collective decisions of every single advertiser within the set of advertisers who are competing in the same auction or vertical industry, and examine resulting market outcomes, via a proposed simulation framework named Experimental Platform for Search Engine Advertising (EXP-SEA) supporting experimental studies of collective behaviors in the context of search…
Classifying online corporate reputation with machine learning
Purpose User-generated social media comments can be a useful source of information for understanding online corporate reputation. However, the manual classification of these comments is challenging due to their high volume and unstructured nature. The purpose of this paper is to develop a classification framework and machine learning model to overcome these limitations. Design/methodology/approach The authors create a multi-dimensional classifica…
Persona Perception Scale
Are Data-Driven Personas Considered Harmful
In this work, we build on research on data-driven personas to present what might be “wrong with them”. From wrong assumptions by the client and wrong applications of methods to imbalanced, messy, or superficial data; a lack of communication regarding how these personas are created; and issues with usability, there are a plethora of issues that plague data-driven personas. We conclude by contemplating whether data-driven personas are even worthwhi…
The ability of personas
International Conference on Cognitive based Information Processing and Applications (Cipa 2021)
How does varying the number of personas affect user perceptions and behavior? Challenging the ‘small personas’ hypothesis
Studies in human-computer interaction recommend creating fewer than ten personas, based on stakeholders’ limitations to cognitively process and use personas. However, no existing studies offer empirical support for having fewer rather than more personas. Investigating this matter, thirty-seven participants interacted with five and fifteen personas using an interactive persona system, choosing one persona to design for. Our study results from eye-…
Do players communicate differently depending on the champion played? Exploring the Proteus effect in League of Legends
The realness of fakes
Deepfakes, realistic portrayals of people that do not exist, have garnered interest in research and industry. Yet, the contributions of deepfake technology to human-computer interaction remain unclear. One possible value of deepfake technology is to create more immersive user personas. To test this premise, we use a commercial-grade service to generate three deepfake personas (DFs). We also create counterparts of the same persona in two tradition…
How does an imaginary persona's attractiveness affect designers' perceptions and IT solutions? An experimental study on users' remote working needs
Purpose The “what is beautiful is good” (WIBIG) effect implies that observers tend to perceive physically attractive people in a positive light. The authors investigate how the WIBIG effect applies to user personas, measuring designers' perceptions and task performance when employing user personas for the design of information technology (IT) solutions. Design/methodology/approach In a user experiment, the authors tested six different personas wi…
Fair compensation of crowdsourcing work
Compensating crowdworkers for their research participation often entails paying a flat rate to all participants, regardless of the amount of time they spend on the task or skill level. If the actual time required varies considerably between workers, flat rates may yield unfair compensation. To study this matter, we analyzed three survey studies with varying complexity. Based on the United Kingdom minimum wage and actual task completion times, we …
Computer Science (27 obras) · World Wide Web (16 obras) · Persona Design and Applications (13 obras) · Persona (12 obras) · Psychology (12 obras) · Innovative Human-Technology Interaction (11 obras) · Business (9 obras) · Human–computer interaction (9 obras) · Information retrieval (9 obras) · Sociology (9 obras)