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1

MOPS - a feasibility study for working with GPS and sensor data in a medical context

Meigen Christof, Vogel Mandy, Bumberger Jan

Annals of Computer Science and Information Systems

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2019

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Vol. 18

621--624

EN

New kinds of data collection like GPS-tracking, wearable sensors and mobile apps impose both technical and privacy challanges for medical research. In the MOPS study (''Machbarkeitsstudie für Ortsbezogene Parameter und Sensordaten'' - feasibility study for geocoded parameters and sensor data) we provide participants with a newly developed app and sensors for various physical and environmental parameters. We want to explore the feasibility of the recently established Medical Research Platform of the Medical Faculty of the University of Leipzig and similar platforms for this kind of data collection and processing.

2

Generating human mobility route based on generative adversarial network

Song Ha Yoon, Baek Moo Sang, Sung Minsuk

Annals of Computer Science and Information Systems

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2019

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Vol. 18

91--99

EN

Recently, many researches on human mobility are aiming to suggest the personal customized solution in the diverse field, usually by academia and industry. Combined with deep learning methods, the mobility data can predict and generate routes of objects from the given past trends. In this work, the Generative Adversarial Network (GAN) model is introduced for creating individual mobility routes based on sets of accumulated personal mobility data. The mobility data had been collected by use of geopositioning system and personal mobile devices. GAN has Discriminator and Generator which are composed of neural networks, and can extract and train geopositionig information. A sequence of longitude and latitude can be geographically mapped and such images can be handled by GAN. The GAN based model successfully handled individual mobility routes in this way. Consequently, our model can generate and suggest unexplored routes from the existing sets of personal geolocation data.

3

Exploring determinants of m-Government services: a study from the citizens’ perspective in Saudi Arabia

Alonazi Mohammed, Beloff Natalia, White Martin

Annals of Computer Science and Information Systems

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2019

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Vol. 18

627--631

EN

The government of Saudi Arabia has adopted M-Government for the effective delivery of services. One advantage that it offers is unique opportunities for real-time and personalized access to government information and services. However, a low adoption rate of m-Government services by citizens is a common problem in Arab countries, including Saudi Arabia, despite the best efforts of the Saudi government. Therefore, this paper explores the determinants of citizens' intention to adopt and use m-Government services, in order to increase the adoption rate. This study was based on the Mobile Government Adoption and Utilization Model (MGAUM) that was developed for the purpose. Data was collected, and the final sample consisted of 1,286 valid responses. The descriptive analysis presented in this paper indicates that all the proposed factors in our MGAUM model were statistically significant in influencing citizens' intention to adopt and use m-Government services.

4

Do online reviews reveal mobile application usability and user experience? The case of WhatsApp

Weichbroth Paweł, Baj-Rogowska Anna

Annals of Computer Science and Information Systems

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2019

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Vol. 18

747--754

EN

The variety of hardware devices and the diversity of their users imposes new requirements and expectations on designers and developers of mobile applications (apps). While the Internet has enabled new forms of communication platform, online stores provide the ability to review apps. These informal online app reviews have become a viral form of electronic word-of-mouth (eWOM), covering a plethora of issues. In our study, we set ourselves the goal of investigating whether online reviews reveal usability and user experience (UUX) issues, being important quality-in-use characteristics. To address this problem, we used sentiment analysis techniques, with the aim of extracting relevant keywords from eWOM WhatsApp data. Based on the extracted keywords, we next identified the original users' reviews, and individually assigned each attribute and dimension to them. Eventually, the reported issues were thematically synthesized into 7 attributes and 8 dimensions. If one asks whether online reviews reveal genuine UUX issues, in this case, the answer is definitely affirmative.

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Developing a model and validating an instrument for measuring the adoption and utilisation of mobile government services adoption in Saudi Arabia

Alonazi Mohammed, Beloff Natalia, White Martin

Annals of Computer Science and Information Systems

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2019

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Vol. 18

633--637

EN

Many governments worldwide are taking advantage of the latest developments in mobile technology to take the digital delivery of government information and services (e-government) to their citizens a stage further. Accessing government information and services via a mobile device is known as m-government, a system designed to serve citizens, companies and government agencies alike. M-government also has unique advantages over e-government, not least enabling users to access government services at any time and from any location. This paper presents a pilot study of the MGAUM model that was developed to analyze factors influencing the adoption rate of m-government services in Saudi Arabia. With the aim of validating a survey instrument with which to conduct the main study in Saudi Arabia, a pilot survey instrument was developed and modified by using previous instruments from research into both e-government and m-government. This pilot questionnaire was distributed to 71 Saudi citizens in the UK, and the final sample was 58 valid responses. The results of this pilot study reveal that all items in the survey instrument were reliable and valid within the range of acceptable academic research and suitable for use in the main study. The results of this pilot study were analyzed using SPSS.

6

Analysis of relationship between personal factors and visiting places using random forest technique

Kim Young Myung, Song Ha Yoon

Annals of Computer Science and Information Systems

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2019

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Vol. 18

725--732

EN

There has been research regarding relationship between human personalities and visiting places using Big Five Factor (BFF). However, other factors such as Social media usage, Hobby, Gender, Age, and Religion and so on are regarded as also major factors which effects the choice of visiting place of a person. Using questionnaire designed by authors, these factors as well as BFF were prepared for this research. The visiting places were collected by a smartphone app called SWARM and classified in 10 categories. In sum, personal data of 34 participants had been collected for several months. To figure out the relationship between these factors and visiting places, random forest technique of ensemble method was used.

7

Assessment of the danger arising from an impact against a mobile computer present in the space between bus seats during a road accident

Dziewiecki K., Prochowski L., Ziubiński M., Zielonka K.

Archiwum Motoryzacji

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2018

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Vol. 79, nr 1

23--36

EN

Passenger seats are one of the most important parts of bus equipment. For the sake of passengers’ comfort, buses are increasingly often provided with small tables to support a mobile computer, laptop, or tablet in a position convenient for the user of a device of this kind. However, this may be an important source of a hazard during a road accident, especially for children. The objective of this work was to assess the danger that would arise from an impact against a mobile computer and to develop calculation methods that would facilitate the identification of such a hazard as one of the accident effects. The research carried out with this objective in view will help to learn some relations between the seating layout, positioning of the said supports, and anthropometric characteristics of bus passengers. A multibody computer model was built, where a fragment of the passenger compartment of a bus with three seats inclusive of integrated seatbelts was represented. The kinematics of motion of the models of an adult and a child in the space between seats during a frontal impact of the bus against an obstacle was explored. Special attention was paid to the possibility of face injuries resulting from an impact against the surface or front edge of the laptop. The limitations resulting from the possible head movements in the space between the seats as well as the influence of changes in the seat spacing on the velocity and angle of impact of passenger’s head against the computer were taken into account.

PL

Fotele pasażerów to jeden z najważniejszych elementów wyposażenia autobusów. W celu zwiększenia wygody osób jadących coraz częściej wyposaża się je w stoliki podtrzymu-jące mobilny komputer, laptop lub tablet w pozycji dogodnej do jego wykorzystania. To jednak może być istotnym źródłem zagrożenia podczas wypadku drogowego, szczególnie dla dzieci. Celem pracy jest ocena zagrożenia wynikającego z uderzenia w mobilny komputer oraz rozwi-janie metod obliczeniowych, które ułatwią identyfikację tego zagrożenia jako skutków wypadku. Prowadzone w tym celu badania ułatwią rozpoznanie niektórych relacji pomiędzy rozmieszcze-niem foteli, umieszczeniem podstawek podtrzymujących a cechami antropometrycznymi osób jadących w autobusie. Opracowano wielobryłowy model komputerowy, w którym uwzględnio-no fragment przestrzeni pasażerskiej autobusu z trzema fotelami wraz ze integrowanymi pasami bezpieczeństwa. Rozważa się kinematykę modeli osoby dorosłej i dziecka w przestrzeni między fotelami podczas czołowego uderzenia autobusu w przeszkodę. Szczególną uwagę zwrócono na możliwość powstania obrażeń twarzy w rezultacie uderzenia w powierzchnię czołową lub przednią krawędź laptopa. Uwzględnia się ograniczenia wynikające z możliwości ruchu głowy w przestrzeni między fotelami, a także wpływ zmiany odległości między nimi na prędkość i kąt uderzenia głową w komputer.

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Mobilne systemy komputerowe

Sobczak M.

Informatyka

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1998

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nr 7/8

31-35

PL

Postep technologiczny w zakresie systemów komórkowych, bezprzewodowych sieci LAN oraz satelitarnych usług komunikacyjnych spowodował, iż stał się możliwy dostęp do informacji w dowolnym czasie i z dowolnego miejsca.