Finding the Needle in a Haystack: Detecting Bug Occurrences in Gameplay Videos

The presence of bugs in video games can bring significant consequences for developers. To avoid these consequences, developers can leverage gameplay videos to identify and fix these bugs. Video hosting websites such as YouTube provide access to millions of game videos, including videos that depict bug occurrences, but the large amount of content can make finding bug instances challenging. We present an automated approach that uses machine learning to predict whether a segment of a gameplay video contains the depiction of a bug. We analyzed 4,412 segments of 198 gameplay videos to predict whether a segment contains an instance of a bug. Additionally, we investigated how our approach performs when applied across different specific genres of video games and on videos from the same game. We also analyzed the videos in the dataset to investigate what characteristics of the visual features might explain the classifier's prediction. Finally, we conducted a user study to examine the benefits of our automated approach against a manual analysis. Our findings indicate that our approach is effective at detecting segments of a video that contain bugs, achieving a high F1 score of 0.88, outperforming the current state-of-the-art technique for bug classification of gameplay video segments

Infants’ and toddlers’ physical activity and sedentary time as measured by accelerometry: a systematic review and meta-analysis,

Background: Early experiences in physical activity (PA) are important to shape healthy movement behaviours long-term; as such, it is critical that PA is promoted from infancy, and that detrimental behaviours (e.g., prolonged sedentary time [ST]) are minimized. The purpose of this systematic review and meta-analysis was to examine infants’ and toddlers’ movement behaviours across daytime hours. Methods: Seven online databases were searched for terms related to infants (\u3c 12 months), toddlers (12–35.9 months), PA, ST, and accelerometry. Two independent reviewers examined 4873 articles for peer-reviewed original research, published in English, that assessed infants’ (counts/min) and/or toddlers’ PA or ST (min/day) using accelerometry across daytime hours. Infants’ mean PA level (counts/min) was averaged across studies, and ranges were produced. Estimates of toddlers’ movement behaviours were aggregated meta-analytically to produce average daily rates, and accelerometer placement, cut-point validity, device type, and epoch length were tested as a moderating variables. Results: Twenty-four studies from 16 countries (published 2011–2019), representing 3699 participants, were included in the systematic review. Five studies reported on infants’ PA, which ranged from 78.2 to 2580.5 cpm. Across 20 studies, toddlers’ total PA, light PA, moderate-to vigorous-intensity PA, and ST ranged from 72.9 to 636.5, 48.5 to 582.4, 6.5 to 89.9, and 172.7 to 545.0 min/day, respectively. After taking into account accelerometer placement, cut-point validity, device type, and epoch length, we found that toddlers engaged in 246.19 min/day (SE = 28.50; 95% CI: 190.34, 302.04) of total PA, 194.10 min/day (SE = 28.76; 95% CI: 137.73, 250.47) of light PA, and 60.16 min/day (SE = 5.88; 95% CI: 48.64, 71.69) of moderate-to vigorous-intensity PA. Toddlers engaged in 337.04 min/day (SE = 32.67; 95% CI: 273.01, 401.07) of ST. Conclusions: With limited studies conducted in infants (n = 5), PA estimates are inconclusive and largely heterogeneous. Overall, toddlers tend to exceed the total PA recommendation of 180 min/day; however, very little of this time is spent at higher movement intensities. Even with high PA rates, toddlers still engage in substantial ST. More consistent and valid measurement protocols are needed to improve comparability across studies

Junior Recital: Gage Fisher, jazz trombone

This recital is presented in partial fulfillment of requirements for the degree Bachelor of Music in Performance. Mr. Fisher studies trombone with Wes Funderburk and Tom Gibson.https://digitalcommons.kennesaw.edu/musicprograms/2064/thumbnail.jp

Factors that Influence Canadian Generalist and Physical Education Specialist Elementary School Teachers’ Practices in Physical Education: A Qualitative Study

Interviews were conducted with 16 elementary school teachers across Canada (eight generalists and eight physical education [PE] specialists) to explore their experiences when instructing PE. Questions were phrased to encourage exploration of the perspectives of generalists and specialists, with a particular focus on teaching philosophy, barriers faced while instructing PE, facilitators and resources that enhance PE instruction, and the teachers’ self-efficacy when teaching PE. Generalists noted perceived lack of time, inadequate facilities and equipment, insufficient training, lack of knowledge, and low self-efficacy as barriers. Conversely, specialists noted that their advanced training, professional development opportunities, high self-efficacy, and technology use positively supported their teaching practices. Keywords: physical education, elementary school, generalist, specialist, physical activityDes entrevues menées auprès de 16 enseignants du primaire à travers le Canada (huit généralistes et huit spécialistes de l’éducation physique [ÉP]) ont permis d’explorer leurs expériences lors de l’enseignement de l’ÉP. Les questions ont été formulées de manière à explorer les perspectives des généralistes et des spécialistes, en mettant l’accent sur : la philosophie de l’enseignement ; les obstacles rencontrés lors de l’enseignement de l’ÉP ; les facilitateurs et les ressources qui améliorent l’enseignement de l’ÉP ; et leur efficacité personnelle dans l’enseignement de l’ÉP. Les généralistes ont indiqué le manque de temps, les installations et les équipements inadéquats, le manque de formation et de connaissance, ainsi qu’une faible efficacité personnelle comme des obstacles. À l’inverse, les spécialistes ont révélé que leur formation avancée, leurs opportunités de développement professionnel, leur grande efficacité personnelle et leur utilisation de la technologie soutenaient positivement leurs pratiques d’enseignement. Mots-clés : éducation physique, école primaire, généraliste, spécialiste, activité physiqu

Senior Recital: Miles Bonaker, trumpet

This recital is presented in partial fulfillment of requirements for the degree Bachelor of Music in Music Education. Mr. Bonaker studies trumpet with Douglas Lindsey.https://digitalcommons.kennesaw.edu/musicprograms/2147/thumbnail.jp

The impact of shorter, more frequent outdoor play periods on preschoolers’ physical activity during childcare: A cluster randomized controlled trial

Children’s physical activity levels are higher at the start of outdoor playtime, which suggests that shorter, more frequent play periods might result in greater amounts of daily physical activity. In this extension of the Supporting Physical Activity in the Childcare Environment (SPACE) cluster randomized controlled trial, we explored the impact of four 30-min daily outdoor unstructured play periods on preschoolers’ moderate-to-vigorous-intensity physical activity (MVPA). Experimental childcare centres (n = 6) implemented four 30-min daily outdoor playtimes for 8 weeks, while control centres (n = 6) maintained their two 60-min outdoor sessions. Actical™ accelerometers were used to measure preschoolers’ physical activity pre-and post-intervention for 5 days during childcare hours. Linear mixed effects models were used to determine the impact of the intervention on preschoolers’ MVPA. Of the 185 preschoolers enrolled (54.20% female; mean age = 39.90 months, SD = 7.24), 127 (65 experimental and 62 control) were included in the analysis (30% and 9% loss to follow-up for experimental and control group preschoolers, respectively). No significant differences in MVPA were observed between groups over time (p = 0.36). Preschoolers’ MVPA did not improve after the introduction of shorter outdoor play periods. The loss of data due to wear time noncompliance and participant attrition may have influenced these findings. Trial registration: ISRCTN70604107 (October 8, 2014)