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Mobile learning is potential and valuable in education. However, most of previous developing strategies of m-learning were analyzed by means of individual knowledge, experience, judgment, and statistic software. Although these methods provide systematic steps for the implementation of m-learning strategies, the correlation between factors cannot be considered thoroughly through the steps, and it is...
Connecting digital information with physical objects can enrich their content and make them interactive. In this paper, we present POLI, which allows a user to author digital content to physical objects using a mobile authoring app and another user to explore the authored content using a mobile client app. The mobile apps discover their user's location by decoding a gray code sequence received from...
The volume of live data transmitted across wireless and mobile networks continues to grow at a rapid speed. In addition, HTTP Live Streaming (HLS) has been widely used for mobile live contents streaming both on WiFi and 3G/LTE networks. Compared to legacy media streaming protocols such as HLS, RTSP, MPEG Media Transport (MMT) [1] real-time live streaming protocol provides low delayed video streaming...
This paper introduces a novel zooming interface deploying a pico projector that, instead of a second visual display, leverages audioscapes for contextual information. The technique enhances current flashlight metaphor approaches, supporting flexible usage within the domain of spatial augmented reality to focus on object or environment-related details. Within a user study we focused on quantifying...
The popularity of smartphones and tablet computers in recent years makes mobile apps burst. Mobile apps have become the main consumers of the Internet-based services. Compared to traditional applications in the desktop computing era, mobile devices with their apps bring new opportunities and challenges to service computing community, in various aspects like service publication, discovery, interaction,...
Micro-blogging in Mobile Social Network can be very successful because of spatiotemporal properties of user interests and generated messages. Users can follow their interests and receive messages of their interests without getting overwhelmed instead of having to identify and follow users having similar interests. We propose a distributed and scalable micro-blogging protocol which exploits community...
Ticket annotation and search has become an essential research subject for the successful delivery of IT operational analytics. Millions of tickets are created yearly to address business users' IT related problems. In IT service desk management, it is critical to first capture the pain points for a group of tickets to determine root cause; secondly, to obtain the respective distributions in order to...
We study the dynamic service migration problem in mobile edge-clouds that host cloud-based services at the network edge. This offers the benefits of reduction in network overhead and latency but requires service migrations as user locations change over time. It is challenging to make these decisions in an optimal manner because of the uncertainty in node mobility as well as possible non-linearity...
Recent widespread use of smartphones and rich multimedia contents has brought a considerable increase in mobile traffic. Therefore, the characteristics of smartphone traffic need to be considered when designing mobile core networks. Smartphone traffic is categorized by whether it is generated from user interaction (foreground (FG) traffic) or not (background (BG) traffic), and such traffic types can...
Intrusion is an illegitimate event that can either be active or passive in a network. In this work, we propose an Intrusion Detection System (IDS) on the basis of Kernel Extreme Learning Machine (KELM) clubbed with Levenberg-Marquardt optimization technique. We incorporate KELM in this work, because of its efficiency in pattern recognition. Levenberg-Marquardt optimization technique is employed because...
In this modern era of technology wireless sensor networks have broad area of applications. Various applications of sensor network needs the communication to be authenticated and secured. Researchers have developed many schemes for intruder detection in WSNs, but those schemes are very complicated and require complex encryption and decryption process for intruder detection. In this paper we proposed...
In this paper, we present a physical scenario analysis for two formats of eta-mu fading distribution i.e. Format 1 and Format 2, respectively. Generally the performance of wireless communication system depends on the characteristics of the fading channel. Hence it is necessary to study the behaviour of the fading phenomena. The small - scale variation of the faded signal is better represented by eta-mu...
The Sticky note is a task reminder which reminds to do the assigned job. Sticky notes helps to manage chores and provides short reminders or information that is required in the future. It can also be sent and received on the network. When data are synchronized on a device, data from one device is transferred to other device so that both the device share the same data. The principle objective of this...
Image scaling is an important processing step in any digital imaging chain containing a camera sensor and a display. Although resolutions of the mobile displays have increased to the level that is usable for imaging, images often have larger resolution than the mobile displays. In this paper we propose a software based fast and good quality image scaling procedure, which is suitable for mobile implementations...
Crowdsourcing mobile applications are of increasing importance due to their suitability in providing personalized and better matching replies. Crowdsourcing location based services inherit the querying mechanism from its legacy predecessors and this is where the threat lays. In this paper we are going to prove mathematically that the mechanism with highest privacy level “Footprint” does not satisfy...
The prevalence of social networks and mobile devices has facilitated the real-time dissemination of local events such as sales, shows and exhibitions. To explore nearby events, mobile users can query a location based search engine for the desired data. However, operating under such a pull based model means that users may miss interesting events (because no explicit queries are issued) or processing/communication...
This paper proposes a group version of the nearest neighbor (NN) query, called the nearest neighborhood (NNH) query, which aims to find the nearest group of points, instead of one nearest point. Given a set O of points, a query point q, and a ρ-radius circle C, the NNH query returns the nearest placement of C to q such that there are at least k points enclosed by C. We present a fast algorithm for...
Given the rise of ubiquitous computing and communication devices like biosensors, smart watch, and smartphones, real-time online systems can provide users with a wide range of supports including monitoring daily activities and retrieving of personal data. User activity pattern can give an abstraction and summarization about physical behavior for certain group of people. However, one of the biggest...
People spend a third of the lifetime on sleep. Exercise and light exposing have critical influence on sleep quality. Exercise affects sleep efficiency, and the light exposing affect sleep circadian rhythm. This paper investigates the impact of sleep rhythm and efficiency with a HTML5-based behavior recording and analytic service -- Healthy Sleep Space (HSS). HSS takes advantages of important features...
We developed Therapeutic Lifestyle Change Decision Aid (TLC DA) system to support an informed choice about which behavior change to work on when multiple unhealthy behaviors are present. The system collects significant amount of information which is used to generate tailored messages to consumers in order to persuade them in following certain healthy lifestyles. One of the current limitations of the...
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