Adversarial Black-Box Attacks on Automatic Speech Recognition Systems using Multi-Objective Evolutionary Optimization

Fooling deep neural networks with adversarial input have exposed a significant vulnerability in the current state-of-the-art systems in multiple domains. Both black-box and white-box approaches have been used to either replicate the model itself or to craft examples which cause the model to fail. In this work, we propose a framework which uses multi-objective evolutionary optimization to perform both targeted and un-targeted black-box attacks on Automatic Speech Recognition (ASR) systems. We apply this framework on two ASR systems: Deepspeech and Kaldi-ASR, which increases the Word Error Rates (WER) of these systems by upto 980%, indicating the potency of our approach. During both un-targeted and targeted attacks, the adversarial samples maintain a high acoustic similarity of 0.98 and 0.97 with the original audio.Comment: Published in Interspeech 201

Young people's use of NHS Direct: a national study of symptoms and outcome of calls for children aged 0-15

Objectives National Health Service (NHS) Direct provides 24/7 expert telephone-based healthcare information and advice to the public in England. However, limited research has explored the reasons to why calls are made on behalf of young people, as such this study aimed to examine call rate (CR) patterns in younger people to enable a better understanding of the needs of this population in England. Setting NHS Direct, England, UK. Participants and methods CRs (expressed as calls/100 persons/annum) were calculated for all calls (N=358 503) made to NHS Direct by, or on behalf of, children aged 0–15 during the combined four ‘1-month’ periods within a year (July 2010, October 2010, January 2011 and April 2011). χ² Analysis was used to determine the differences between symptom, outcome and date/time of call. Results For infants aged <1, highest CRs were found for ‘crying’ for male (n=14, 440, CR=13.61) and female (n=13 654, CR=13.46) babies, which is used as a universal assessment applied to all babies. High CRs were also found for symptoms relating to ‘skin/hair/nails’ and ‘colds/flu/sickness’ for all age groups, whereby NHS Direct was able to support patients to self-manage and provide health information for these symptoms for 59.7% and 51.4% of all cases, respectively. Variations in CRs were found for time and age, with highest peaks found for children aged 4–15 in the 15:00–23:00 period and in children aged <1 in the 7:00–15:00 period. Conclusions This is the first study to examine the symptoms and outcome of calls made to NHS Direct for and on behalf of young children. The findings revealed how NHS Direct has supported a range of symptoms through the provision of health information and self-care support which provides important information about service planning and support for similar telephone-based services

Social, Emotional, and Behavioral Functioning for Transitional-Aged Youth with Autism

There is mounting evidence to suggest that higher numbers of individuals with Autism Spectrum Disorder (ASD) are being identified, including a wide range of severity and outcome (Eaves & Ho, 2008). As identification of ASD has improved, there is a larger proportion of identified young adults with ASD (YA-ASD) in the transition to adulthood (Centers for Disease Control and Prevention, 2010). Though exceptionally talented in many cases, a large proportion YA-ASD have difficulty establishing independence and navigating the complex social nuances of a workplace, many end up “homebound” with difficulty finding employment (Daley, Weisner, & Singhal, 2014; Shattuck, Wagner, Narendorf, Sterzing, & Hensley, 2011; Taylor & Seltzer, 2011). It is quite likely that remaining homebound has far-reaching effects on the development of self-efficacy and mood functioning. In response to this challenge parents, advocates, and individuals with ASD have developed a technology-training program to help teach skills that will allow individuals with ASD to be independent: increasing skills and kindling hope for the future. The current study sought to explore the impact of the training program components on anxiety, depression, and friendships, specific to YA-ASD in the transition to adulthood. YA-ASD (n = 23) from vocational training program were given Achenbach System of Empirically Based Assessment - Adult Self-Report (ASR) before and after an 8-week period in a vocational program. Group and individual difference were measured for significant change. Few group significance was observed across the scales of the ASR. Some individual significance was observed, however no patterns of individual significance was found

Individual differences and occupational stress perceived: a Croatian survey

Apart from elaborating the concept of occupational stress (through it’s definition, sources, consequences, ways of dealing with it, and it’s relationship with individual differences), the research had two objectives: (1) to measure occupational stress levels among different categories of employees working in Croatian enterprises, and (2) to study and analyze stress in Croatia in relation to individual differences (gender, age, marital status, parenthood, number of children, hierarchical level, department, and working hours). The greatest level of stress perceive respondents who have three or more children, who are more than 50 year old, and those employed in marketing, at middle levels or in procurement, while the lowest level of stress perceive employees younger than 30 years of age, those employed in HR, finances and production, and parents of one child. Concerning the relationship between individual differences and levels of stress experienced, although the cross-sectional design of the study does not allow for causal interpretation of relationships found, findings suggest that there is a connection between age, marital status, parenthood, number of children and hierarchical level, and the way stress is perceived, while gender, department and working hours are not connected to it. The research integrated a broader set of antecedent variables which enable a better understanding of the demographic and work factors that lead to occupational stress. That should subsequently help managers understand a greater proportion of the variance of employees’ satisfaction, performance and turnover, and help them better deal with it.occupational stress, sources of occupational stress, consequences of occupational stress, individual differences, Croatia

Florida Geological Survey

The Florida Geological Survey (FGS) homepage provides data, research materials and interpretations on aquifer systems, geologic frameworks, landforms, energy and non-energy mineral resources, and geologic hazards which which can be used to address issues of conservation and protection, sustainable development, human health protection, and implementation of successful environmental regulatory programs. Educational materials for earth science and the pre-historic development of the state are also provided. These include topics such as sinkholes, data and maps, rock and mineral identification, minerals, hydrogeology, and fossils. Educational levels: General public