The impact of using different keyboards on free-text keystroke dynamics authentication for Arabic language

2019 ◽  
Vol 27 (2) ◽  
pp. 221-232
Author(s):  
Suliman A. Alsuhibany ◽  
Muna Almushyti ◽  
Noorah Alghasham ◽  
Fatimah Alkhudhayr

Purpose Nowadays, there is a high demand for online services and applications. However, there is a challenge to keep these applications secured by applying different methods rather than using the traditional approaches such as passwords and usernames. Keystroke dynamics is one of the alternative authentication methods that provide high level of security in which the used keyboard plays an important role in the recognition accuracy. To guarantee the robustness of a system in different practical situations, there is a need to examine how much the performance of the system is affected by changing the keyboard layout. This paper aims to investigate the impact of using different keyboards on the recognition accuracy for Arabic free-text typing. Design/methodology/approach To evaluate how much the performance of the system is affected by changing the keyboard layout, an experimental study is conducted by using two different keyboards which are a Mac’s keyboard and an HP’s keyboard. Findings By using the Mac’s keyboard, the results showed that the false rejection rate (FRR) was 0.20, whilst the false acceptance rate (FAR) was 0.44. However, these values have changed when using the HP’s keyboard where the FRR was equal to 0.08 and the FAR was equal to 0.60. Research limitations/implications The number of participants in the experiment, as the authors were targeting much more participants. Originality/value These results showed for the first time the impact of the keyboards on the system’s performance regarding the recognition accuracy when using Arabic free-text.

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lei Li ◽  
Anrunze Li ◽  
Xue Song ◽  
Xinran Li ◽  
Kun Huang ◽  
...  

PurposeAs academic social Q&A networking websites become more popular, scholars are increasingly using them to meet their information needs by asking academic questions. However, compared with other types of social media, scholars are less active on these sites, resulting in a lower response quantity for some questions. This paper explores the factors that help explain how to ask questions that generate more responses and examines the impact of different disciplines on response quantity.Design/methodology/approachThe study examines 1,968 questions in five disciplines on the academic social Q&A platform ResearchGate Q&A and explores how the linguistic characteristics of these questions affect the number of responses. It uses a range of methods to statistically analyze the relationship between these linguistic characteristics and the number of responses, and conducts comparisons between disciplines.FindingsThe findings indicate that some linguistic characteristics, such as sadness, positive emotion and second-person pronouns, have a positive effect on response quantity; conversely, a high level of function words and first-person pronouns has a negative effect. However, the impacts of these linguistic characteristics vary across disciplines.Originality/valueThis study provides support for academic social Q&A platforms to assist scholars in asking richer questions that are likely to generate more answers across disciplines, thereby promoting improved academic communication among scholars.


2021 ◽  
Vol 35 (9) ◽  
pp. 15-27
Author(s):  
Magnus Söderlund

Purpose This study aims to examine humans’ reactions to service robots’ display of warmth in robot-to-robot interactions – a setting in which humans’ impressions of a service robot will not only be based on what this robot does in relation to humans, but also on what it does to other robots. Design/methodology/approach Service robot display of warmth was manipulated in an experimental setting in such a way that a service robot A expressed low versus high levels of warmth in relation to another service robot B. Findings The results indicate that a high level of warmth expressed by robot A vis-à-vis robot B boosted humans’ overall evaluations of A, and that this influence was mediated by the perceived humanness and the perceived happiness of A. Originality/value Numerous studies have examined humans’ reactions when they interact with a service robot or other synthetic agents that provide service. Future service encounters, however, will comprise also multi-robot systems, which means that there will be many opportunities for humans to be exposed to robot-to-robot interactions. Yet, this setting has hitherto rarely been examined in the service literature.


2018 ◽  
Vol 30 (2) ◽  
pp. 380-399 ◽  
Author(s):  
Rahim Hussain ◽  
Ahmed Shahriar Ferdous ◽  
Gillian Sullivan Mort

Purpose The purpose of this paper is to examine whether advertising type (static or dynamic) and appeal (emotional or rational) moderate the relationship between web banner advertising frequency and consumer attitudinal response. Design/methodology/approach A laboratory experiment involving 400 participants was conducted to test for the moderating effect. Factorial ANOVA is used to measure brand attitude. Findings The results identified that the web banner advertisement type acted as a moderator between frequency and brand attitude. However, the moderating effect of banner advertisement appeal was found to be insignificant at a single banner advertisement frequency (i.e. exposure) but significantly different at a higher frequency. The study findings provide better directives for online marketers. Practical implications The major limitation is the fact that the impact of banner advertisement frequency was manipulated from one to five exposures. Future research needs to determine what happens after the fifth exposure, perhaps ten exposures or more, to determine the wear-out effect and in turn, to decide on the optimal frequency level in an effort to design more appropriate web communication strategies. Social implications The result shows that pop-up banner advertisements are intrusive, and that high level of exposures to pop-up banner advertisement could annoy online users. Thus, online advertisers should avoid repeating the pop-up banner advertisements because this could adversely affect the attitude towards the online advertising in general, and could also negatively influence attitudes towards the brand and ultimately effect online purchase. Originality/value This study contributes to the theory by providing more insights into the repetition effect, and comprehensive conclusions can be drawn based on the manipulation of banner advertisement frequency on different frequency levels. The research identifies that if the communication objective is to generate brand attitude, different strategies can be adopted depending on the banner advertisement type (pop-up vs static) and banner advertisement appeal (emotional vs rational).


2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amy M. Seegmiller Renner ◽  
Heidi L. Borgwardt ◽  
Monica Coyle ◽  
Susan Moeschler ◽  
Anjali Bhagra

Purpose This case study aims to demonstrate how the Greater Leadership Opportunities for Women (GLOW) Mayo Clinic Employee Resource Groups (MERG) has positively impacted leadership development focusing on growth, resilience, inspiration and tenacity (GRIT) and increased advancement for female leaders at Mayo Clinic. It will also establish how the innovative utilization of employee resource groups can positively impact the development of leaders within an institution in general and specially can enhance behaviors related to GRIT. Design/methodology/approach This case study design was used to measure the impact of the GLOW MERG’s interventions through qualitative and quantitative approaches that highlight both process and outcome to increase study validity through complementarity, which “seeks elaboration, enhancement, illustration, clarification of the results from one method with the results from another” (Greene, et al., 1989, p. 259) as well as completeness and context (Onghena et al., 2019; Schoonenboom and Johnson, 2017; Bryman, 2006). Learning outcomes (knowledge), skill accomplishments and attitude development were evaluated within two weeks after each session and annually through standardized surveys sent to participants via email. The surveys were designed to capture key information about the sessions, including the impact of the session content, the willingness and ability of attendees to apply the learning and identification of opportunities for improvement in session design and delivery, as well as measure satisfaction with the activities offered, the frequency and method(s) of communication, barriers to session attendance and particular topics or speakers of interest to members (Appendix 1). Response options included dichotomous scales, Likert-type scales, multi-select and free text. This provided a voluntary response sampling, as post-session surveys were sent to all session attendees and annual surveys were sent to all GLOW MERG members, which allowed individuals to choose if they would respond to the surveys (Creswell and Creswell, 2018). To foster an environment of continuous improvement, plan-do-study-act (PDSA) cycles (Langley et al., 2009) were conducted after every survey by the event planning team and the GLOW MERG Board. Interventions were tested, reviewed and discussed during monthly board meetings and event planning. Improvements were made and results were shared with key stakeholders through regular communication channels. Additionally, 30 past and present GLOW MERG leaders were surveyed to measure their perceived impact of participation in the GLOW MERG interventions using dichotomous scales, multi-select and free text responses (Appendix 2). This targeted purposive sample was selected because of their high level of engagement with the MERG to provide a retrospective evaluation of the success of the GLOW MERG, and its interventions for career advancement related to the development of GRIT attributes, knowledge and skills resulting in career advancement for those who are/have been highly engaged with the MERG. Findings The results spanning the past few years of GLOW MERG interventions has shown that the GLOW MERG has been successful in providing targeted educational events that address the GRIT knowledge, skills and attributes, needed for female health-care leaders to be successful in developing GRIT capabilities. By staying true to its mission and vision, the GLOW MERG has been able to promote, educate and empower female leaders at Mayo Clinic while actively breaking down the barriers that can prevent women from obtaining leadership positions. Research limitations/implications There are several limitations with this case study’s data collection and sampling methods. First, the post-session and annual survey sampling was based mainly on ease of access, with responses obtained from respondents who are more likely to volunteer or those with the strongest opinions. This allowed for potential bias as responses may not be representative of all GLOW MERG member opinions. Furthermore, the purposive sample of present and past GLOW MERG leaders was also subject to volunteer bias and may not have be representative of the GLOW MERG population. Additionally, the case study examined the practices of only one site and MERG group and may not be representative of all sites or employee resources groups. Practical implications The interventions implemented by the GLOW MERG to assist women with developing GRIT knowledge, skills and attributes – barriers women often face in leadership roles – were tested, reviewed and discussed during monthly board meetings and event planning. PDSA cycles were conducted, improvements were made and results were shared with key stakeholders through regular communication channels (Langley et al., 2009). Key lessons learned from these assessments include: One size does not fit all for leadership development. GLOW members have a wide variety of backgrounds, skills and experiences. Repetition is important in the development of GRIT knowledge, skills and attributes associated with GRIT. A one-time event provides attendees with an information overview and the steps to start developing a new skill but no dedicated time to practice and implement that skill. Originality/value The innovative utilization of employee resource groups can positively impact the development of leaders within an institution in general and specially can enhance behaviors related to GRIT.


Facilities ◽  
2020 ◽  
Vol 38 (7/8) ◽  
pp. 501-522 ◽  
Author(s):  
Davide Schaumann ◽  
Nirit Putievsky Pilosof ◽  
Michal Gath-Morad ◽  
Yehuda E. Kalay

Purpose This study aims to use a narrative-based simulation approach to explore potential implications of including or excluding a dayroom in the design of an internal medicine ward. Design/methodology/approach The approach involved: collecting data in facilities using field observations and experts’ interviews; modeling representative behavior patterns in the form of rule-based narratives that direct collaborative behaviors of virtual occupants; simulating the behavior patterns in two alternative design options, one of which includes a dayroom; and analyzing the simulation results with respect to selected key performance indicators of day-to-day operations and spatial occupancy, including occupant density in corridors, number and locations of staff-visitor interactions and duration of a doctors’ round procedure. Findings Simulation results suggest that the presence of a dayroom reduces visitors’ density in corridors and diminishes the number of staff–visitor interactions that can delay the performing of scheduled medical procedures. Research limitations/implications A high level of uncertainty is intrinsic to the simulation of future human behavior. Additional work is required to systematically collect large volumes of occupancy data in existing facilities, model additional narratives and develop validation protocols to assess the degree of uncertainty of the proposed model. Originality/value A limited number of studies explore how simulation can be used to study the impact of building design on operations. This study uses a narrative-based approach to address some of the limitations of existing methods, including discrete-event simulations. Preliminary results suggest that the lack of appropriate spaces for patients and visitors to socialize may cause potential disruptions to hospital operations.


2018 ◽  
Vol 19 (4) ◽  
pp. 500-517 ◽  
Author(s):  
Francisca Beer ◽  
Badreddine Hamdi ◽  
Mohamed Zouaoui

Purpose The purpose of this paper is to examine whether investors’ sentiment affects accruals anomaly across European countries. Design/methodology/approach The authors estimate the model using Fama–MacBeth regressions. The sample includes 54,572 firm-year observations for 4,787 European firms during the period 1994–2014. Findings The authors find that investors’ sentiment influences accruals mispricing across European countries. The effect is pronounced for stocks whose valuations are highly subjective and difficult to arbitrage. The cross-country analysis provides evidence that sentiment influences accruals anomaly in countries with weaker outside shareholder rights, lower legal enforcement, lower equity market development, higher allowance of accrual accounting and in countries where herd-like behavior and overreaction behavior are strong. Research limitations/implications The findings suggest the generalizability of the sentiment-accruals anomaly relation in European countries characterized by different cultural values, levels of economic development and legal tradition. Practical implications The findings suggest to caution individuals investors. These investors would be wise to take into account the impact of sentiment on the performance of their portfolio. They must keep in mind that periods of high optimism are accompanied by a high level of accruals and followed by low future stock returns. Originality/value The research supplements previous American studies by showing the significance of the level of sentiment in understanding the accruals anomaly in Europe. Hence, it is important for future studies to consider investor sentiment as an important time-series determinant of the accruals anomaly, particularly for stocks that are hard to value and difficult to arbitrage.


2020 ◽  
Vol 21 (2) ◽  
pp. 309-327
Author(s):  
Noha Elberry ◽  
Khaled Hussainey

PurposeThe authors examine the impact of corporate investment efficiency on corporate voluntary disclosure for a sample of UK non-financial companies.Design/methodology/approachThe authors use a sample of FTSE All-Share firms for the period of 2007–2014. Disclosure scores are collected from Corporate Financial Information Environment (CFIE). They follow Biddle et al. (2009) and Chen et al. (2011) in measuring corporate investment efficiency.FindingsThe authors find that high level of performance-related disclosure is associated with high level of corporate investment efficiency, while high level of good news information is associated with low level of corporate investment efficiency. They also find evidence on a bidirectional relation between disclosure and corporate investment efficiency.Research limitations/implicationsThe authors’ findings would be of importance to stakeholders and corporations. Stakeholders' investment decisions could be facilitated by understanding the disclosures provided by their firms and how these firms' performance is presented. Corporations become aware of the language which must be used to signal their performance.Practical implicationsCorporations become aware of the language which must be used in their disclosures. As firms may reflect their efficient investments but not in the form of good news in order to avoid revealing their competitive advantage to competitors.Originality/valueThis paper adds to disclosure studies by introducing a new variable, corporate investment efficiency, as a determinant of corporate disclosure practice.


2014 ◽  
Vol 22 (5/6) ◽  
pp. 208-219 ◽  
Author(s):  
Michele Abendstern ◽  
Christian Brand ◽  
Val Harrington ◽  
Rowan Jasper ◽  
Sue Tucker ◽  
...  

Purpose – The purpose of this paper is to identify features of community mental health teams (CMHTs) for older people valued by their managers, and those they would most like to change. Design/methodology/approach – Content analysis was used to analyse “free text” responses to open questions from a national survey about CMHTs’ organisational structures and processes. Responses were sorted into statements which were categorised into content areas and higher level dimensions. Findings – Free text information was provided by 376 teams (an 88 per cent response rate). Eight higher level dimensions were identified. One related specifically to integration with social care services, whilst several more included material about other aspects of intra-team integration (e.g. documentation and location). The largest proportion of statements related to staffing and teamwork. Statements about inter-personal and inter-professional issues were largely positive, whilst statements about resources, bureaucracy and integration with social care services typically detailed desired changes. Practical implications – Four key issues emerged comprising a high level of support from managers to develop integrated practices; a need to define the focus of CMHTs for older people and to be fully resourced; and the importance of a nurturing and supportive team environment. Originality/value – The methodology provides a bridge between qualitative and quantitative research, exploring the volume of statements on particular topics and their meaning.


2012 ◽  
Vol 56 (12) ◽  
pp. 6304-6309 ◽  
Author(s):  
Santosh K. Katiyar ◽  
Ana Alastruey-Izquierdo ◽  
Kelley R. Healey ◽  
Michael E. Johnson ◽  
David S. Perlin ◽  
...  

ABSTRACTThe echinocandins caspofungin, micafungin, and anidulafungin, inhibitors of cell wall β-1,3-glucan synthesis, were recently elevated to first-line agents for treating infections due to the azole-refractory yeastCandida glabrata. InCandida albicans, echinocandin resistance is strictly associated with mutations in Fks1, a large integral membrane protein and putative β-1,3-glucan synthase, while mutations in both Fks1 and its paralog Fks2 (but not Fks3) have been associated with resistance inC. glabrata. To further explore their function, regulation, and role in resistance,C. glabratafksgenes were disrupted and subjected to mutational analysis, and their differential regulation was explored. Anfks1Δfks2Δ double disruptant was not able to be generated; otherwise, all three single and remaining two double disruptants displayed normal growth and echinocandin susceptibility, indicating Fks1-Fks2 redundancy. Selection on echinocandin-containing medium for resistant mutants was dependent on strain background: onlyfks1Δ andfks1Δfks3Δ strains consistently yielded mutants exhibiting high-level resistance, all with Fks2 hot spot 1 mutations. Thus, Fks1-Fks2 redundancy attenuates the rate of resistance; further analysis showed that it also attenuates the impact of resistance-conferring mutations. Growth of thefks1Δ and, especially,fks1Δfks3Δ strains was specifically susceptible to the calcineurin inhibitor FK506. Relatedly, FK506 addition or calcineurin geneCMP2disruption specifically reversed Fks2-mediated resistance of laboratory mutants and clinical isolates. RNA analysis suggests that transcriptional control is not the sole mechanism by which calcineurin modulates Fks2 activity.


2016 ◽  
Vol 5 (3) ◽  
pp. 164-169 ◽  
Author(s):  
Arwa Alsultan ◽  
Kevin Warwick ◽  
Hong Wei

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