http://www.hcis-journal.com The latest research articles published by Human-centric Computing and Information Sciences 2013-05-10T00:00:00Z Advancement in the area of software engineering, mobile computing together with web technologies have paved way for myriad range of applications, including good quality E-learning software’s, delivering online classes in real time to unlimited number of students across the world, on a personalized E-learning space for every student. These E-learning software systems have virtually made the whole world as a single campus education hub. However, development of these software’s has been a challenge for industry, as the requirement of various stakeholders–learner, educator, institutional management, accreditation bodies, has to be handled in the software effectively. Software systems developed for E-learning applications should implement all the requirements of its diverse stakeholders and must be delivered well in time. Delays, incomplete software and faulty modules could be a big failure for educational institute. To be able to deliver the software within deadline, software’s are delivered in increments. In order to support incremental delivery, paper proposes a new requirement prioritization method that selects those requirements for implementation that are essentially required by stakeholders and has a lower regression count associated with them, thereby reducing regression testing effort.This paper reports the advantages reaped from E-learning software project of “Virtual Classroom” employed in teaching “Multimedia Technologies” course to undergraduate students of sixth semester. Total 50 students, enrolled under both distance education and full time education (25 in each category), were asked a set of questions. Results indicate that E-learning system would bring revolution in the field of education, whether study program is full time, part time or a distance education program. Students found augmenting classroom teaching with the use of E-learning software systems as an enriching experience. http://www.hcis-journal.com/content/3/1/8 Varun Gupta Durg Singh Chauhan Kamlesh Dutta Human-centric Computing and Information Sciences 2013, null:8 2013-05-10T00:00:00Z doi:10.1186/2192-1962-3-8 /content/figures/2192-1962-3-8-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 8 2013-05-10T00:00:00Z XML In this paper, a mechanism generating RDF Semantic Web schema from Web document set as the semantic metadata is proposed. Analyzing both the structural and un-structural content of Web documents, semi-structured Web documents can be conceptualized as resource objects with inter-relationships in RDF diagram. Technically, hyperlinks, basic annotations, and keywords in web documents will be properly analyzed, and corresponding RDF schema will be generated following the mechanism and rules proposed in this paper. It is expected that with the semantic metadata of document sets on the Web being systematically translated instead of manually edited, the semantic operation on the Web, such as semantic query or semantic search, will be possible in the future. http://www.hcis-journal.com/content/3/1/7 Hsiang-Yuan Hsueh Chun-Nan Chen Kun-Fu Huang Human-centric Computing and Information Sciences 2013, null:7 2013-05-10T00:00:00Z doi:10.1186/2192-1962-3-7 /content/figures/2192-1962-3-7-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 7 2013-05-10T00:00:00Z PDF In this paper, the development of a shared virtual presentation board (VPB) for real-time e-Meeting on the Web-based e-Learning System (WebELS) platform is introduced. WebELS is a general-purpose e-Learning system to support flexibility and globalization of higher education in science and technology. In WebELS, the Meeting module consists of online presentation and video conference system, and the combination of both allows the creation of a so-called virtual room for e-Meeting applications where participants convene via the Internet. Online presentation features synchronized slide control between the presenter and the listeners for slide changing, scrolling, zooming, cursor positioning, and playback control for video embedded on the slide. It also features online annotation that allows the presenter to write using a pen function on the slide display panel. The system has video conferencing function that provides an audio-video communication among the meeting participants. This paper discusses briefly the video conference system, and focuses on online presentation based on slide-based synchronization and the development of VPB. VPB is a shared object that resides on the server that is updated every time the presenter client makes mouse events and is periodically accessed by client system in order that listener's presentation viewer synchronized with that of the presenter. http://www.hcis-journal.com/content/3/1/6 Arjulie Berena Sila Chunwijitra Hitoshi Okada Haruki Ueno Human-centric Computing and Information Sciences 2013, null:6 2013-04-26T00:00:00Z doi:10.1186/2192-1962-3-6 /content/figures/2192-1962-3-6-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 6 2013-04-26T00:00:00Z PDF This paper explains design decisions forming a foundation of WordBricks — an intelligent computer-assisted language learning environment, recently initiated at our institution. WordBricks is intended to serve as a “virtual language lab” that supports open experiments with natural language constructions. Being based on dependency grammars, this instrument illustrates the use of modern natural language processing technologies in language learning. The latest prototypes of WordBricks also show how dependency-styled constructions can be represented in a more natural sequential form that facilitates easier user interaction. http://www.hcis-journal.com/content/3/1/5 Maxim Mozgovoy Roman Efimov Human-centric Computing and Information Sciences 2013, null:5 2013-04-08T00:00:00Z doi:10.1186/2192-1962-3-5 /content/figures/2192-1962-3-5-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 5 2013-04-08T00:00:00Z XML Inter-Vehicle Communication (IVC) is an important component of the ITS architecture, that enables Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) communications. GeoNet project brought the IVC one step further by enabling transparent IP connectivity between vehicles and the infrastructure. Specifications produced by the GeoNet project have been incorporated into several ETSI standards, which define the geonetworking protocol layer and the IPv6-over-geonetworking adaptation layer. In this paper, we propose an ETSI complaint geonetworking protocol layer on the well known NCTUns simulation framework. We discuss the architecture of our implementation as well as NCTUns specific issues encountered during the implementation. We believe that, with this contribution, the researchers are provided with a scalable and flexible framework with Berkeley socket API access to applications and SQL based performance logging for post simulation evaluations. http://www.hcis-journal.com/content/3/1/4 Ziya Taysi Ali Yavuz Human-centric Computing and Information Sciences 2013, null:4 2013-03-25T00:00:00Z doi:10.1186/2192-1962-3-4 /content/figures/2192-1962-3-4-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 4 2013-03-25T00:00:00Z PDF This paper presents an adaptive neuro/fuzzy system which can be trained to detect the current human emotions from a set of measured responses. Six models are built using different types of input/output membership functions and trained by different kinds of input arrays. The models are compared based on their ability to train with lowest error values. Many factors impact the error values such as input/output membership functions, the training data arrays, and the number of epochs required to train the model. ANFIS editor in MATLAB is used to build the models. http://www.hcis-journal.com/content/3/1/3 Mohammad Malkawi Omayya Murad Human-centric Computing and Information Sciences 2013, null:3 2013-03-12T00:00:00Z doi:10.1186/2192-1962-3-3 /content/figures/2192-1962-3-3-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 3 2013-03-12T00:00:00Z XML Position information is an important aspect of a mobile device’s context. While GPS is widely used to provide location information, it does not work well indoors. Wi-Fi network infrastructure is found in many public facilities and can be used for indoor positioning. In addition, the ubiquity of Wi-Fi-capable devices makes this approach especially cost-effective.In recent years, “folksonomy”-like systems such as Wikipedia or Delicious Social Bookmarking have achieved huge successes. User collaboration is the defining characteristic of such systems. For indoor positioning mechanisms, it is also possible to incorporate collaboration in order to improve system performance, especially for fingerprinting-based approaches.In this article, a robust and efficient model is devised for integrating human-centric collaborative feedback within a baseline Wi-Fi fingerprinting-based indoor positioning system. Experiments show that the baseline system performance (i.e., positioning error and precision) is improved by collecting both positive and negative feedback from users. Moreover, the feedback model is robust with respect to malicious feedback, quickly self-correcting based on subsequent helpful feedback from users. http://www.hcis-journal.com/content/3/1/2 Yan Luo Orland Hoeber Yuanzhu Chen Human-centric Computing and Information Sciences 2013, null:2 2013-03-06T00:00:00Z doi:10.1186/2192-1962-3-2 /content/figures/2192-1962-3-2-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 2 2013-03-06T00:00:00Z XML In service oriented computing, service providers and service requesters are main interacting entities. A service provider publishes the services it wishes to make public using service registries. A service requester initiates a discovery process to find the service that meets its requirements using the service registries. Current approaches for the publication and discovery do not realize the essential relationship between the service contract and the conditions in which the service can guarantee its contract. Moreover, they do not use any formal methods for specifying services, contracts, and compositions. Without a formal basis it is not possible to justify through a rigorous verification the correctness conditions for service compositions and the satisfaction of contractual obligations in service provisions. In our recent works, we have identified the role of contextual information, trustworthiness information and legal rules in service provision. This paper focuses on the publication and discovery of trustworthy context-dependent services as supported by the novel framework FrSeC. It introduces a novel ranking algorithm that ranks trustworthy context-dependent services according to the degree they match service requesters requirements. Finally, this paper introduces a prototype implementation for the matching and ranking of services as supported by FrSeC. http://www.hcis-journal.com/content/3/1/1 Naseem Ibrahim Mubarak Mohammad Vangalur Alagar Human-centric Computing and Information Sciences 2013, null:1 2013-01-17T00:00:00Z doi:10.1186/2192-1962-3-1 /content/figures/2192-1962-3-1-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 1 2013-01-17T00:00:00Z XML There currently exist widely used mobile phone emergency applications for the smartphone and limited mobile emergency applications for indoor environments. However, the outdoor applications only focus primarily on providing accident information to users, and the indoor applications are limited by the unavailability of GPS user-positioning and by WiFi-based access problems. To compensate for these limitations, we propose the RescueMe system, which uses an indoor mobile Augmented Reality application, personalized pedometry, and an optimal exit path algorithm. Together these components comprise a system that can quickly and easily recommend an efficient exit path to mobile phone users in emergency situations. We have developed the mobile-based RescueMe system for use in large-scale buildings that contain complex paths. We show how RescueMe leverages the sensors on a smartphone and utilizes Augmented Reality, cloud information, daily-based user walking patterns, and an adaptive GPS connection method, to deliver critical evacuation information to mobile phone users in indoor emergency situations. http://www.hcis-journal.com/content/2/1/18 Junho Ahn Richard Han Human-centric Computing and Information Sciences 2012, null:18 2012-11-24T00:00:00Z doi:10.1186/2192-1962-2-18 /content/figures/2192-1962-2-18-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 18 2012-11-24T00:00:00Z XML Well-designed instructional material is equally important for successful e-Learning implementation. Teachers and instructors play a major role in terms of designing and building learning content. In one respect, it requires costs in terms of effort, time and experience. In other respects, a good learning content is likely a result of recurring revisions as a result of teaching experience as well as evaluating student activities. In the case of higher educational institutions (HEI) in developing countries (such as Indonesia), resource sharing in many aspects is highly recommended effort against high cost and redundant works, e-Learning is no exception. Sharing and re-using e-Learning content on particular subject between Learning Management Systems (LMS) can be one of the methods. In addition, collaborative teaching may cause a content develops gradually while conducting content sharing. Thus, the capability of synchronizing the content between LMS is necessary. On the other hand, typical e-Learning implementation might not be appropriate due to the concerns of network infrastructure in developing countries. In some areas, the network has less bandwidth and even frequent disconnections. This paper introduces a novel method of sharing e-Learning content between distributed Learning Management Systems by using dynamic content synchronization. This method also suites the need of course sharing which supports collaborative teaching activity. Moreover, this approach is designed to address the needs of content sharing in areas with network infrastructure limitation in terms of bandwidth and availability. http://www.hcis-journal.com/content/2/1/17 Royyana Ijtihadie Bekti Hidayanto Achmad Affandi Yoshifumi Chisaki Tsuyoshi Usagawa Human-centric Computing and Information Sciences 2012, null:17 2012-11-05T00:00:00Z doi:10.1186/2192-1962-2-17 /content/figures/2192-1962-2-17-toc.gif Human-centric Computing and Information Sciences 2192-1962 ${item.volume} 17 2012-11-05T00:00:00Z XML