The Last Decade of HCI Research on Children and Voice-based Conversational Agents

Voice-based Conversational Agents (CAs) are increasingly being used by children. Through a review of 38 research papers, this work maps trends, themes, and methods of empirical research on children and CAs in HCI research over the last decade. A thematic analysis of the research found that work in this domain focuses on seven key topics: ascribing human-like qualities to CAs, CAs’ support of children’s learning, the use and role of CAs in the home and family context, CAs’ support of children’s play, children’s storytelling with CA, issues concerning the collection of information revealed by CAs, and CAs designed for children with differing abilities. Based on our findings, we identify the needs to account for children's intersectional identities and linguistic and cultural diversity and theories from multiple disciples in the design of CAs, develop heuristics for child-centric interaction with CAs, to investigate implications of CAs on social cognition and interpersonal relationships, and to examine and design for multi-party interactions with CAs for different domains and contexts

Modeling Autonomous Agents In Military Simulations

Simulation is an important tool for prediction and assessment of the behavior of complex systems and situations. The importance of simulation has increased tremendously during the last few decades, mainly because the rapid pace of development in the field of electronics has turned the computer from a costly and obscure piece of equipment to a cheap ubiquitous tool which is now an integral part of our daily lives. While such technological improvements make it easier to analyze well-understood deterministic systems, increase in speed and storage capacity alone are not enough when simulating situations where human beings and their behavior are an integral part of the system being studied. The problem with simulation of intelligent entities is that intelligence is still not well understood and it seems that the field of Artificial Intelligence (AI) has a long way to go before we get computers to think like humans. Behavior-based agent modeling has been proposed in mid-80\u27s as one of the alternatives to the classical AI approach. While used mainly for the control of specialized robotic vehicles with very specific sensory capabilities and limited intelligence, we believe that a behavior-based approach to modeling generic autonomous agents in complex environments can provide promising results. To this end, we are investigating a behavior-based model for controlling groups of collaborating and competing agents in a geographic terrain. In this thesis, we are focusing on scenarios of military nature, where agents can move within the environment and adversaries can eliminate each other through use of weapons. Different aspects of agent behavior like navigation to a goal or staying in group formation, are implemented by distinct behavior modules and the final observed behavior for each agent is an emergent property of the combination of simple behaviors and their interaction with the environment. Our experiments show that while such an approach is quite efficient in terms of computational power, it has some major drawbacks. One of the problems is that reactive behavior-based navigation algorithms are not well suited for environments with complex mobility constraints where they tend to perform much worse than proper path planning. This problem represents an important research question, especially when it is considered that most of the modern military conflicts and operations occur in urban environments. One of the contributions of this thesis is a novel approach to reactive navigation where goals and terrain information are fused based on the idea of transforming a terrain with obstacles into a virtual obstacle-free terrain. Experimental results show that our approach can successfully combine the low run-time computational complexity of reactive methods with the high success rates of classical path planning. Another interesting research problem is how to deal with the unpredictable nature of emergent behavior. It is not uncommon to have situations where an outcome diverges significantly from the intended behavior of the agents due to highly complex nonlinear interactions with other agents or the environment itself. Chances of devising a formal way to predict and avoid such abnormalities are slim at best, mostly because such complex systems tend to be be chaotic in nature. Instead, we focus on detection of deviations through tracking group behavior which is a key component of the total situation awareness capability required by modern technology-oriented and network-centric warfare. We have designed a simple and efficient clustering algorithm for tracking of groups of agent suitable for both spatial and behavioral domain. We also show how to detect certain events of interest based on a temporal analysis of the evolution of discovered clusters

An investigation of social media as a dimension of the social identity formation among female adolescents in King William's Town

According to Jensen (2000:215), though we talk of the growing digital divide between rich and poor countries, Africa has shown encouraging signs that it is rapidly adopting the Internet and making innovative use of the technology. Nevertheless, the continent is still well behind other developing regions of the world in taking advantage of the information and communication revolution. The main reasons for this are the limited and expensive telecommunication infrastructure, small markets, and lack of skills and awareness. At the end of 1996, just 11 of Africa’s 54 countries had local Internet access, but by February 2000 all of the continent’s countries had access in the capital cities (Jensen 2000:215). Excluding South Africa, the number of computers permanently connected to the Internet in Africa exceeded 10,000 early in 1999 (Jensen 2000:215). By January 2000, the total had increased to about 25,000, which means Africa, with an estimated population of 780 million people, has about as many Internet-connected computers (hosts) as Latvia, which only has a population of 2.5 million (Jensen 2000:215). Measuring the actual number of Internet users is difficult, but figures for the number of dial-up accounts supplied by Internet service providers (ISPs) show that Africa has more than 500,000 subscribers (Jensen 2000:215). Each computer with an Internet or e-mail connection supports an average of three users, a recent study by the UN Economic Commission for Africa (ECA) has found (Jensen 2000:215). This puts current estimates of the number of African Internet users at somewhere around 1.5 million. Most are in South Africa with approximately 1 million (Jensen 2000:215). Apart from the widespread use of Internet for business and entertainment purposes, social networking sites are becoming widely popular in South Africa. Although there has been little academic research on social networking sites in South Africa, there have been a few articles on websites, newspapers, and magazines that have touched on this phenomenon. Social networking sites, particularly Facebook, have become very popular among the adult internet user population, as both business and private applications. BMW South Africa, for example, has a Facebook page where video posts of recent car models and photos of cars are placed. The Facebook page also has a link to the company’s website (www.bmw.co.za) on the profile which takes a user straight to the commercial website. FM Tech (www.fmtech.co.za) is technology industry news and opinion website edited by Duncan McLeod, associate editor at the Financial Mail, South Africa’s top-selling and best-read weekly business, technology and current affairs magazine. McLeod’s article, What SA Internet users searched for in 2008, revealed that “Facebook”, “Cape Town” and “games” are the terms that South African Internet users searched for most often in 2008. Farber (2008) suggests that this is according to the results of US Web search giant Google’s annual “Zeitgeist” survey of the top searches worldwide. Farber also includes the year’s list of fastest-rising search terms which showed an enormous interest in international social networking sites. 1.2 Articles from popular media The following four popular articles describe the nature of social networking sites and its influence on South African users. Article 1: Cathryn Reece (2007) wrote an article entitled Facebook fever grips SA. “Cape Town - South Africans have embraced the internet social networking revolution, with over 50 000 new users signing on to the local Facebook network. The Facebook "South Africa" network currently has over 87 000 members - up from 35 000 in May. When a user registers on the site, they are given a blank profile page which they can update with their personal information and are encouraged to join a network. Members can then search the site for their friends and link up to each other, re-creating their social circle on the internet

An investigation of social media as a dimension of the social identity formation among female adolescents in King William's Town

According to Jensen (2000:215), though we talk of the growing digital divide between rich and poor countries, Africa has shown encouraging signs that it is rapidly adopting the Internet and making innovative use of the technology. Nevertheless, the continent is still well behind other developing regions of the world in taking advantage of the information and communication revolution. The main reasons for this are the limited and expensive telecommunication infrastructure, small markets, and lack of skills and awareness. At the end of 1996, just 11 of Africa’s 54 countries had local Internet access, but by February 2000 all of the continent’s countries had access in the capital cities (Jensen 2000:215). Excluding South Africa, the number of computers permanently connected to the Internet in Africa exceeded 10,000 early in 1999 (Jensen 2000:215). By January 2000, the total had increased to about 25,000, which means Africa, with an estimated population of 780 million people, has about as many Internet-connected computers (hosts) as Latvia, which only has a population of 2.5 million (Jensen 2000:215). Measuring the actual number of Internet users is difficult, but figures for the number of dial-up accounts supplied by Internet service providers (ISPs) show that Africa has more than 500,000 subscribers (Jensen 2000:215). Each computer with an Internet or e-mail connection supports an average of three users, a recent study by the UN Economic Commission for Africa (ECA) has found (Jensen 2000:215). This puts current estimates of the number of African Internet users at somewhere around 1.5 million. Most are in South Africa with approximately 1 million (Jensen 2000:215). Apart from the widespread use of Internet for business and entertainment purposes, social networking sites are becoming widely popular in South Africa. Although there has been little academic research on social networking sites in South Africa, there have been a few articles on websites, newspapers, and magazines that have touched on this phenomenon. Social networking sites, particularly Facebook, have become very popular among the adult internet user population, as both business and private applications. BMW South Africa, for example, has a Facebook page where video posts of recent car models and photos of cars are placed. The Facebook page also has a link to the company’s website (www.bmw.co.za) on the profile which takes a user straight to the commercial website. FM Tech (www.fmtech.co.za) is technology industry news and opinion website edited by Duncan McLeod, associate editor at the Financial Mail, South Africa’s top-selling and best-read weekly business, technology and current affairs magazine. McLeod’s article, What SA Internet users searched for in 2008, revealed that “Facebook”, “Cape Town” and “games” are the terms that South African Internet users searched for most often in 2008. Farber (2008) suggests that this is according to the results of US Web search giant Google’s annual “Zeitgeist” survey of the top searches worldwide. Farber also includes the year’s list of fastest-rising search terms which showed an enormous interest in international social networking sites. 1.2 Articles from popular media The following four popular articles describe the nature of social networking sites and its influence on South African users. Article 1: Cathryn Reece (2007) wrote an article entitled Facebook fever grips SA. “Cape Town - South Africans have embraced the internet social networking revolution, with over 50 000 new users signing on to the local Facebook network. The Facebook "South Africa" network currently has over 87 000 members - up from 35 000 in May. When a user registers on the site, they are given a blank profile page which they can update with their personal information and are encouraged to join a network. Members can then search the site for their friends and link up to each other, re-creating their social circle on the internet

Eye quietness and quiet eye in expert and novice golf performance: an electrooculographic analysis

Quiet eye (QE) is the final ocular fixation on the target of an action (e.g., the ball in golf putting). Camerabased eye-tracking studies have consistently found longer QE durations in experts than novices; however, mechanisms underlying QE are not known. To offer a new perspective we examined the feasibility of measuring the QE using electrooculography (EOG) and developed an index to assess ocular activity across time: eye quietness (EQ). Ten expert and ten novice golfers putted 60 balls to a 2.4 m distant hole. Horizontal EOG (2ms resolution) was recorded from two electrodes placed on the outer sides of the eyes. QE duration was measured using a EOG voltage threshold and comprised the sum of the pre-movement and post-movement initiation components. EQ was computed as the standard deviation of the EOG in 0.5 s bins from –4 to +2 s, relative to backswing initiation: lower values indicate less movement of the eyes, hence greater quietness. Finally, we measured club-ball address and swing durations. T-tests showed that total QE did not differ between groups (p = .31); however, experts had marginally shorter pre-movement QE (p = .08) and longer post-movement QE (p < .001) than novices. A group × time ANOVA revealed that experts had less EQ before backswing initiation and greater EQ after backswing initiation (p = .002). QE durations were inversely correlated with EQ from –1.5 to 1 s (rs = –.48 - –.90, ps = .03 - .001). Experts had longer swing durations than novices (p = .01) and, importantly, swing durations correlated positively with post-movement QE (r = .52, p = .02) and negatively with EQ from 0.5 to 1s (r = –.63, p = .003). This study demonstrates the feasibility of measuring ocular activity using EOG and validates EQ as an index of ocular activity. Its findings challenge the dominant perspective on QE and provide new evidence that expert-novice differences in ocular activity may reflect differences in the kinematics of how experts and novices execute skills

Digital Technology Disorder: Justification and a proposed model of treatment

Due to advances in technology being made at an exponential rate, organisations are attempting to compete with one another by utilising state-of-the-art technology to provide innovative products and services that encourage use. However, there is no moral code to inform sensitive technology design, a consequence of which is the emergence of so-called technology addiction. While addiction as a term is problematic, increasing evidence suggests that related-conditions present implications for the individual, for organisations and for wider society. In this research, a consideration of the potentially addictive elements of technology indicates that it can be possible to reverse engineer these systems, as it were, to promote the development of new behaviours, which can enable the individual to abstain from overuse. Utilising smartphones to deliver digital behavioural change interventions can leverage abundant data touchpoints to provide highly tailored treatment, in addition to allowing for enhanced monitoring and accuracy. To inform understanding of this contemporary phenomenon, the literature on addiction has been reviewed, along with the literature on persuasion architecture to inform an understanding of techniques that lend themselves to overuse and how these can be leveraged to promote recovery. From which, the authors have developed a proposed model to inform the practice of those operating in the domains of computer science

Brother, Can You Spare a Dime? Technology Can Reduce Dispute Resolution Costs When Times are Tough and Improve Outcomes

Cost reduction is one of the desirable results frequently attributed to Alternative Dispute Resolution (ADR) processes. Although it is reasonable to assume that businesses always are interested in saving money, this goal takes on added importance when the economy is struggling. The cost savings inherent in ADR, which already are significant, can be increased substantially through the strategic adoption of technology. Although I generally do not urge caution when it comes to expanding the ways in which we use technology, we nonetheless must recognize not only technology’s potential benefits but also its possible pitfalls. It is relatively easy to identify some of the cost savings that can be achieved through greater reliance on technology. It can be somewhat more difficult, however, to identify the circumstances in which technology can create unanticipated costs. Fortunately, many of those costs can be avoided. This article identifies cost efficiencies that technology can bring to dispute resolution processes and also suggest how potential costs can be minimized or avoided. The article begins by examining the Technology Revolution. The emergence of technology mediated dispute resolution (TMDR) as an efficient and cost-effective means of resolving disputes illustrates the significant impact the Technology Revolution has had in the area of ADR. This article suggests why TMDR has not been embraced more enthusiastically. It then explores how we can use technology to make dispute resolution more effective and efficient and explains why, in light of a rapidly maturing technology savvy generation, we might have little choice but to embrace TMDR. The article next discusses Cybersettle and Smartsettle, two of the established TMDR programs available today. The following section provides additional reasons why the use of TMDR will increase, including the assertion that foreign nations’ decisions to expand TMDR will compel the United States to rely more heavily on TMDR. The article then examines the challenges raised by TMDR. These challenges include power imbalances; the possibility that TMDR software and platforms may exercise greater influence over the dispute resolution process than expected; and questions as to how we can involve artificial intelligence devices, robots, and avatars in our dispute resolution processes. Ideas for integrating artificial intelligence devices into TMDR processes are based upon the manner in which these devices already are being used in the health care industry. The article concludes by examining the dangers and financial costs of relying on avatars and robots, identifies sectors well positioned to use TMDR, and briefly raises the issue of whether we need to regulate TMDR

Growing Up Online: Identity, Development and Agency in Networked Girlhoods

Young women\u27s digital media practices unfold within a postfeminist media landscape dominated by rapidly circulating visual representations that often promote superficial readings of human value. Meanwhile the dominant framing within educational policy and practice of digital media literacy insufficiently captures young people\u27s motivations for engaging in multimedia production, online gaming and blogging. In addition to using digital media for social purposes, and to navigate dimensions of social difference like race, class and gender, working class young women of color also use digital media to develop internal awareness of their selves. The processes of documenting the self, reflecting on the documented self, and laying claim to the intrinsic value of the self are expressions of identity, development and agency. These practices can thus be understood as projects of self-making operating on multiple levels: 1) as articulations of agency against contexts that suppress this agency; 2) as documentations of and reflections on change and growth over time; 3) as explorations of relationality and related themes of care and obligation; 4) and as a means of critiquing structures of power

Culture and Social Media

博士(文学)神戸市外国語大

Technology-facilitated intimate partner violence in Italy: the role of education in preventing abusive behaviours in intimate relationships

openThis thesis develops around the phenomenon of technology-facilitated intimate partner violence, by offering a theoretical, conceptual, and contextual framework to better understand its prevalence, impact, causes, and consequences, with a specific focus on Italy. Technology-facilitated intimate partner violence (TFIPV) is a specific form of intimate partner violence perpetrated within the context of dating or an intimate relationship by current or former partners through the use of ICT means. Although TFIPV research has been increasing and developing in recent years, not much is known about the scope and magnitude of this issue, especially due to its nature that transcends temporal and geographical boundaries. After a general introduction and analysis of the phenomenon, firstly by placing it within the broader framework of online GBV, the second part of this research will focus specifically on the Italian national context. A literature review of some already existing Italian studies will be presented, to show the state-of-art of research on the issue. Finally, the third part will reflect on the role of education in preventing TFIPV, particularly by presenting some prevention programs, as well as a number of interviews with experts in the field, to stress the need to educate people, especially young people, on what constitutes a healthy and respectful relationship and what betrays a dysfunctional, problematic and toxic one.This thesis develops around the phenomenon of technology-facilitated intimate partner violence, by offering a theoretical, conceptual, and contextual framework to better understand its prevalence, impact, causes, and consequences, with a specific focus on Italy. Technology-facilitated intimate partner violence (TFIPV) is a specific form of intimate partner violence perpetrated within the context of dating or an intimate relationship by current or former partners through the use of ICT means. Although TFIPV research has been increasing and developing in recent years, not much is known about the scope and magnitude of this issue, especially due to its nature that transcends temporal and geographical boundaries. After a general introduction and analysis of the phenomenon, firstly by placing it within the broader framework of online GBV, the second part of this research will focus specifically on the Italian national context. A literature review of some already existing Italian studies will be presented, to show the state-of-art of research on the issue. Finally, the third part will reflect on the role of education in preventing TFIPV, particularly by presenting some prevention programs, as well as a number of interviews with experts in the field, to stress the need to educate people, especially young people, on what constitutes a healthy and respectful relationship and what betrays a dysfunctional, problematic and toxic one