Inferring Room Semantics Using Acoustic Monitoring

Having knowledge of the environmental context of the user i.e. the knowledge of the users' indoor location and the semantics of their environment, can facilitate the development of many of location-aware applications. In this paper, we propose an acoustic monitoring technique that infers semantic knowledge about an indoor space \emph{over time,} using audio recordings from it. Our technique uses the impulse response of these spaces as well as the ambient sounds produced in them in order to determine a semantic label for them. As we process more recordings, we update our \emph{confidence} in the assigned label. We evaluate our technique on a dataset of single-speaker human speech recordings obtained in different types of rooms at three university buildings. In our evaluation, the confidence\emph{ }for the true label generally outstripped the confidence for all other labels and in some cases converged to 100\% with less than 30 samples.Comment: 2017 IEEE International Workshop on Machine Learning for Signal Processing, Sept.\ 25--28, 2017, Tokyo, Japa

Landslide susceptibility assessment using Frequency Ratio, a case study of northern Pakistan

The northern Pakistan is attributed with rough terrain, active seismicity, monsoon rains, and therefore hosts to variety of geohazards. Among the geohazards, landslides are the most frequent hazard with devastating impacts on economy and society. However, for most of the northern Pakistan, landslide susceptibility maps are not available which can be used for landslide hazard mitigation. This study aims to develop a remote sensing based landslide inventory, analysing their spatial distribution and develop the landslide susceptibility map. The area, selected for this study is comprised of Haramosh valley, Bagrote valley and some parts of Nagar valley, in the Central Karakoram National Park (CKNP) in Gilgit-Baltistan, northern Pakistan. The SPOT-5 satellite image was used to develop a landslide inventory which was subsequently verified in the field. The landslide causative factors of topographic attributes (slope and aspect), geology, landcover, distances from fault, road and streams were used to evaluate their influence on the spatial distribution of landslides. The study revealed that the distance to road, slope gradient has the significant influence on the spatial distribution of the landslides, followed by the geology. The derived results were used in the Frequency ratio technique to develop a landslide susceptibility map. The developed landslide susceptibility map can be utilized for landslide mitigation in the study area

An Understanding of Behavior Difference as for Students and Workers Using Public Transits in Chongqing, China

Various studies on students or workers using public transits have been conducted. However, few studies consider behavior difference between them under same context. This study intends to determine factors influencing students and workers using different public transits for elastic travel on weekends in Chongqing, for a better understanding of behavior difference between the two typical travel population in cities. This study utilized the data from Chongqing Travel Survey in 2015 for analysis. Two set of binary logistic regression model were employed for significant factor determination. The results showed that travel expense and time walking to station were the collective significant factors influencing students and workers using public transits for elastic travel in Chongqing. However, gender and travel purpose only significantly influenced students using public transits for elastic travel in Chongqing, and time walking to destination and travel comfort only significantly influenced workers using public transits for elastic travel in Chongqing. Besides that, based on the model results, this study revealed the behavior difference of students and workers in Chongqing using public transits for elastic travel. And the researching findings in this study aimed at providing an original direction of thinking for public transits operators about differentiating with students and workers to balance the traffic resource between bus and rail transit. Keywords: Balance, Behavior Difference, Chongqing, Elastic Travel, Public Transit

KNEE INJURIES IN BADMINTON SPORT: INVESTIGATING CIRCUMSTANCES OF INJURY AND MANAGEMENT TECHNIQUES IN SINDH PROVINCE

Knee injury is one of the most common types of injuries that sportspeople experience in Badminton sport. Extant literature on knee injuries suggests that most of the research undertaken was in advanced countries. Especially, very limited research has been undertaken in context of Sindh province. Consequently, this study aims to report survey findings of the cases of knee injuries in Badminton sport and its management techniques across thirteen districts of Sindh. Data were collected through structured interview using survey questionnaire by non-probability technique of convenience sampling. Data were analyzed in SPSS version 22.0. Mean age of the Badminton players across Sindh was about 34 years and about 42.3% have had graduation. These findings reveal that middle-aged and educated people play this game for fitness purpose. Findings also reveal that about 53.8% players got their right knee injured during the play. It was stated that 92.3% respondents were injured intrinsically. While X-ray was the only technique used to diagnose the injury. However, 80% respondents were suggested to go through some physiotherapeutic methods as management of the injury

STUDY OF CAUSES, CONSEQUENCES AND REHABILITATION OF KNEE-INJURIES IN MALH SPORT IN SINDH PROVINCE

Malh is an indigenous, traditional and very popular sport in Sindh for centuries. Malh is intense body-contact sport with critical chances of injuries especially knee-injury. This study tends to determine the causes, consequences and rehabilitation of knee injuries in Malh across thirteen districts of the province. Data were collected through structured interview using survey questionnaire and analyzed in SPSS version 22.0. The average mean age of the Malh players also known as Pehelwans was found 43.03 years. Height and weight were recorded as 64.37 inches and 83.26kgs respectively. Findings of this study reveal that 52% Malh players got their right knee injured while 99% players reported they have had several types of injuries most injuries were serious and intrinsic. Implications of findings for Malh players, trainers, parents, physiotherapists and government policy makers are discussed with reference to promotion of Malh sport and diagnosis and rehabilitation of knee injuries