SOCIALQ&A: A NOVEL APPROACH TO NOTIFIYING THE CORRECT USERS IN QUESTION AND ANSWERING SYSTEMS

Question and Answering (Q&A) systems are currently in use by a large number of Internet users. Q&A systems play a vital role in our daily life as an important platform for information and knowledge sharing. Hence, much research has been devoted to improving the performance of Q&A systems, with a focus on improving the quality of answers provided by users, reducing the wait time for users who ask questions, using a knowledge base to provide answers via text mining, and directing questions to appropriate users. Due to the growing popularity of Q&A systems, the number of questions in the system can become very large; thus, it is unlikely for an answer provider to simply stumble upon a question that he/she can answer properly. The primary objective of this research is to improve the quality of answers and to decrease wait times by forwarding questions to users who exhibit an interest or expertise in the area to which the question belongs. To that end, this research studies how to leverage social networks to enhance the performance of Q&A systems. We have proposed SocialQ&A, a social network based Q&A system that identifies and notifies the users who are most likely to answer a question. SocialQ&A incorporates three major components: User Interest Analyzer, Question Categorizer, and Question- User Mapper. The User Interest Analyzer associates each user with a vector of interest categories. The Question Categorizer algorithm associates a vector of interest categories to each question. Then, based on user interest and user social connectedness, the Question-User Mapper identifies a list of potential answer providers for each question. We have also implemented a real-world prototype for SocialQ&A and analyzed the data from questions/answers obtained from the prototype. Results suggest that social networks can be leveraged to improve the quality of answers and reduce the wait time for answers. Thus, this research provides a promising direction to improve the performance of Q&A systems

Software expert discovery via knowledge domain embeddings in a collaborative network

© 2018 Elsevier B.V. Community Question Answering (CQA) websites can be claimed as the most major venues for knowledge sharing, and the most effective way of exchanging knowledge at present. Considering that massive amount of users are participating online and generating huge amount data, management of knowledge here systematically can be challenging. Expert recommendation is one of the major challenges, as it highlights users in CQA with potential expertise, which may help match unresolved questions with existing high quality answers while at the same time may help external services like human resource systems as another reference to evaluate their candidates. In this paper, we in this work we propose to exploring experts in CQA websites. We take advantage of recent distributed word representation technology to help summarize text chunks, and in a semantic view exploiting the relationships between natural language phrases to extract latent knowledge domains. By domains, the users’ expertise is determined on their historical performance, and a rank can be compute to given recommendation accordingly. In particular, Stack Overflow is chosen as our dataset to test and evaluate our work, where inclusive experiment shows our competence

Experience of Robotic Exoskeleton Use at Four Spinal Cord Injury Model Systems Centers

Background and Purpose: Refinement of robotic exoskeletons for overground walking is progressing rapidly. We describe clinicians\u27 experiences, evaluations, and training strategies using robotic exoskeletons in spinal cord injury rehabilitation and wellness settings and describe clinicians\u27 perceptions of exoskeleton benefits and risks and developments that would enhance utility. Methods: We convened focus groups at 4 spinal cord injury model system centers. A court reporter took verbatim notes and provided a transcript. Research staff used a thematic coding approach to summarize discussions. Results: Thirty clinicians participated in focus groups. They reported using exoskeletons primarily in outpatient and wellness settings; 1 center used exoskeletons during inpatient rehabilitation. A typical episode of outpatient exoskeleton therapy comprises 20 to 30 sessions and at least 2 staff members are involved in each session. Treatment focuses on standing, stepping, and gait training; therapists measure progress with standardized assessments. Beyond improved gait, participants attributed physiological, psychological, and social benefits to exoskeleton use. Potential risks included falls, skin irritation, and disappointed expectations. Participants identified enhancements that would be of value including greater durability and adjustability, lighter weight, 1-hand controls, ability to navigate stairs and uneven surfaces, and ability to balance without upper extremity support. Discussion and Conclusions: Each spinal cord injury model system center had shared and distinct practices in terms of how it integrates robotic exoskeletons into physical therapy services. There is currently little evidence to guide integration of exoskeletons into rehabilitation therapy services and a pressing need to generate evidence to guide practice and to inform patients\u27 expectations as more devices enter the market. Background and Purpose: Refinement of robotic exoskeletons for overground walking is progressing rapidly. We describe clinicians\u27 experiences, evaluations, and training strategies using robotic exoskeletons in spinal cord injury rehabilitation and wellness settings and describe clinicians\u27 perceptions of exoskeleton benefits and risks and developments that would enhance utility. Methods: We convened focus groups at 4 spinal cord injury model system centers. A court reporter took verbatim notes and provided a transcript. Research staff used a thematic coding approach to summarize discussions. Results: Thirty clinicians participated in focus groups. They reported using exoskeletons primarily in outpatient and wellness settings; 1 center used exoskeletons during inpatient rehabilitation. A typical episode of outpatient exoskeleton therapy comprises 20 to 30 sessions and at least 2 staff members are involved in each session. Treatment focuses on standing, stepping, and gait training; therapists measure progress with standardized assessments. Beyond improved gait, participants attributed physiological, psychological, and social benefits to exoskeleton use. Potential risks included falls, skin irritation, and disappointed expectations. Participants identified enhancements that would be of value including greater durability and adjustability, lighter weight, 1-hand controls, ability to navigate stairs and uneven surfaces, and ability to balance without upper extremity support. Discussion and Conclusions: Each spinal cord injury model system center had shared and distinct practices in terms of how it integrates robotic exoskeletons into physical therapy services. There is currently little evidence to guide integration of exoskeletons into rehabilitation therapy services and a pressing need to generate evidence to guide practice and to inform patients\u27 expectations as more devices enter the market

Investigating Factors Affecting Electronic Word-Of-Mouth In The Open Market Context: A Mixed Methods Approach

Electronic Word-of-Mouth (eWOM) has been identified as one of key factors affecting online sales. There has been, however, lack of understanding about the factors leading to eWOM in the open market context. As many Internet vendors have adopted the open market business, it is essential to understand the factors leading to eWOM for the success of open market business. This study investigates factors affecting eWOM in the open market context based on a sequential combination of qualitative and quantitative research methods. The exploratory findings in the qualitative study become the basis for the quantitative study, survey research. The findings from the mixed methods explain the significance of three new factors (information sharing desire, self-presentation desire, and open market reward) and two other factors (open market satisfaction and open market loyalty) affecting eWOM directly and indirectly. This study contributes to research by adding to the broader literature on eWOM. The findings also can inform open market providers on how to promote and manage eWOM for their online business success

Negotiated Investment Strategy

The Negotiated Investment Strategy (NIS) was created by the urban affairs program at the Kettering Foundation as a vehicle for cities to shape their own future. The creators of the NIS, in the late 1970\u27s, observed that while most major cities needed help, such help was hard to come by. Three reasons account for this. First, the assistance that was available to cities, particularly from the federal government, was often in the form of categorical grants, and it was difficult to tailor the assistance to the particular needs of the city. Second, there was a great deal of duplication of existing programs and a lack of coordination between them. Finally, cities had not discovered how they might capitalize upon their own assets, particularly: the facilities that were in place, the city\u27s infrastructure, and the commitment to the city by people from both the public and private sector

Evaluating nurse engagement with and opportunities for human papillomavirus (HPV) vaccine promotion in Montana

Purpose: Parental vaccine hesitancy is a known driver of sub-optimal vaccine uptake in the United States.1 Even though a study analyzing parental responses in National Immunization Survey-Teen found that HPV vaccine hesitancy has slightly declined (69% in 2010 v/s 63% in 2019) over the years, only about 52.6% of adolescents in Montana had received all the required doses of the HPV vaccine series in 2021.2,3 Nurses are at the forefront of healthcare provision and possess a unique ability to influence parental vaccine decisions.5 By listening to and addressing parents\u27 concerns about immunizations, nurses can dispel misinformation and help change parents\u27 perceptions about the risks associated with immunizations.6 However, lack of research focused on ascertaining vaccine confidence among nurses impedes the development of evidence-based strategies to effectively engage nursing professionals in HPV vaccine promotion in Montana. Methods: Aim One: I conducted a statewide cross-sectional survey of Montana nurses and medical assistants (n=309) working at facilities participating in the Vaccines for Children program to determine their perceptions, practices, and experiences with adolescent immunization services, with a focus on HPV vaccination. Aim Two: I conducted qualitative interviews with public health nurses (n=21) employed at public health departments with both higher and lower missed opportunities rates for HPV vaccination to isolate patient-, provider-, and clinic-level factors associated with higher or lower HPV vaccine uptake. For Aims 2 and 3, I defined a clinic visit to be a missed opportunity for HPV vaccination, when an adolescent received other recommended vaccines (Tdap, MenACWY, Influenza) but did not receive an HPV vaccine dose during the visit despite being due or overdue to initiate the vaccine series. Aim Three: Using immunization data from Montana\u27s immunization information system, I conducted an ecologic analysis = and used generalized linear mixed modeling to identify county-level sociodemographic and access-to-care factors that were associated with missed opportunities for HPV vaccination across all clinic settings. Results: Aim One: In the statewide survey, most respondents (92.5%) agreed that it is important to vaccinate adolescents against HPV before they engage in any physical intimacy. About 38.1% of respondents reported that misinformation that parents receive from the internet and social media were major barriers to HPV vaccine uptake. Regarding strategies to improve vaccination rates in Montana, 61.4% nurses and medical assistants identified emphasizing cancer prevention while discussing HPV vaccine as being very effective. Aim Two: Qualitative interviews with public health nurses revealed that among all recommended adolescent immunization, nurses faced most parental vaccine hesitancy with the HPV vaccine. A lack of robust reminder/recall systems, quality improvement initiatives, and vaccine recommendation styles influences community HPV vaccination rates. Public health nurses underscored the need to engage adolescents through tailored vaccine messaging, create training opportunities for nurses in effective vaccine conversations, invest in social media campaigns, encourage collaborations with schools and community organizations, and promote HPV vaccination at every patient encounter. Aim Three: County level effects of population density, rurality, income inequality ratio, proportions of families receiving public assistance, proportion of American Indians/Alaska Natives, and children in single-parent households were significantly associated with missed opportunities for HPV vaccination after adjusting for individuals\u27 age group and gender (p-value 0.05). Increases in county-level estimates of rurality were associated with higher odds of experiencing HPV missed opportunities whereas increases in proportions of families receiving public assistance, proportion of American Indians/Alaska Natives, income inequality ratio, children in single parent households, and population density were associated with lower odds of experiencing missed opportunities for HPV vaccination. Conclusion: Nurses, along with other health professionals, play a key role in increasing vaccination rates and their contribution toward primary prevention of HPV-related infection is crucial. However, multi-level strategies are required to support the integration of nurses as active HPV vaccine advocates and increase HPV vaccine use in rural and medically underserved areas. The ecologic analysis presented an efficacious way of identifying geographical disparities in HPV vaccine uptake risk, thus helping focus resources on populations in need

Clinicians\u27 Use Of mHealth Applications In Interventions For Substance Use Disorders

The purpose of the study was to examine how clinicians are identifying, evaluating, and utilizing mHealth apps as treatment adjuncts with their clients who have a substance use disorder. A sample of 93 participants (20 males, 72 females, and 1 not listed) completed measures of demographics and inquiries about their use and evaluation of mHealth apps in their practices. Clinicians who work at mental health centers and private practicing clinicians were recruited. The majority of the sample (71%) reported that they had not utilized mHealth apps with their clients who have a substance use disorder diagnosis. Participants who have attended trainings regarding mHealth apps and participants who have had client inquiries about mHealth apps were more likely to recommend them to their clients. On average, clinicians who utilized mHealth apps only slightly to moderately educated clients regarding benefits, drawbacks, and protective measures of using mHealth apps. Age was a significant positive predictor for participants educating their clients about the benefits and drawbacks of using mHealth apps, whereas years of practice was a negative predictor for clinicians educating their clients about the benefits and drawbacks of using mHealth apps. Participants primarily recommended mHealth apps designed to help users lower stress and assist with restful sleep. Evaluation of mHealth apps was primarily completed by participants exploring the features of the apps themselves