Jung-Min Oh

User-selectable interactive recommendation system in mobile environment

Mobile devices need to provide more accurate and personalized information in a computing environment with a small screen and limited information retrieval functions. This paper presents a user-selectable recommendation system that reflects a user interest group by employing collaborative filtering as technique to provide useful information in a mobile environment. We form similar groups by simultaneously considering a user’s information preferences and demographics. Then we reconstruct lists of a final recommendation based on what search results the similar demographic group has chosen. This is an optional filter for the search results. This means that we provide an interactive flexible recommendation list that considers a user’s intent more actively, rather than unilaterally. We show the Mean Absolute Error result to evaluate the recommendation and finally show the realization of a prototype that is based on both the iPhone and Android phone environments.

A Cultural Dimensions Model based on Smart Phone Applications

Abstract —One of the major factors influencing the phenomenal growth of the smart phone market is the active development applications based on open environments. Despite difficulties in finding and downloading applications due to the small screens and inconvenient interfaces of smart phones, users download applications nearly every day. Such user behavior patterns indicate the significance of smart phone applications. So far, studies on applications have focused mainly on technical approaches, including recommendation systems. Meanwhile, the issue of culture, as an aspect of user characteristics regarding smart phone use, remains largely unexamined throughout the world. Hence, the present study attempts to analyze the highest ranked smart phone applications downloaded and paid for that are ranked the highest in 10 countries (Korea, Japan, China, India, the UK, USA, Indonesia, Canada, France, and Mexico) and we then derive the CDSC (Cultural Dimensions Score of Content) for these applications. The results derived are, then, mapped to the cult ural dimensions model to determine the CISC (Cultural Index Score for Country). Further, culturally significant differences in smart phone environments are identified using MDS analysis.

Towards a cultural user interface generation principles

As ubiquitous computing, and pervasive computing technology are being applied rapidly to the service industry, in the field of HCI, more complex and in-depth research are required at the moment. The efforts to make user experience more valuable using useful multimedia technologies around us, are being made in various parts of the world. In addition to this, generation studies for developing easier and faster UI are being conducted in the field of UI. Until now, the studies have been focused on generation studies using UI pattern models, but smart UI generation development, considering the cultural environment of users, is required. The purpose of this study is to suggest 3-D integrated design principles of modeling, design, and system for the design of cultural user interface generation reflecting the users’ potential culture models. For this, a CTT model was designed based on MB-UID; and a cultural UI generation system architecture was designed by using cultural dimension models and cultural markers. To analyze the cultural factors, CISC (Cultural Index Score for Country) was derived in the process of culture profiling. Then, to verify the design model, culture UI was implemented, targeting the category UI of smartphone app stores.

Towards Cultural User Interface Generator Principles

The HCI research field needs more complex and in-depth studies. Nowadays, many researchers are focusing on the user experience process that can make usability valuable. In addition to that, user behavior patterns, social interaction, and cross cultural issues are still important parts of user interface technology. On the strength of these trends, research about the interface generator has been conducted in the user interface area to make development faster and easier. This study aims to establish design principles of the cultural user interface (CUI) generator and design architecture so that culture can be reflected in the user interface generator. A CUI generator based on design principles will be adapted to multiple devices such as the web, mobile phones, IPTV and so on. The cultural dimensions model and culture markers are adopted as a method at the same time.

User Interface Design Model for Supporting Multi Interaction Content Creation

The method of contents interaction is changing to a way of direct control. Also, participation of general users in contents creation is steadily increasing. Reflecting this trend, the software that supports contents creation is also diversifying. The purpose of this study is in drawing the UI design framework of software for creating contents that satisfies usability in the creation phase and various interactive effects in the consumption phase. The framework that was drawn as the result of this study, ‘MASIIC (Make A Software uI for Interactive Content)’, consists of five models: business rule model, creation role model, creation flow model, creation action model, and presentation model. It draws the details of the business rule model for software business and provides more valuable elements that attract user experience through user’s intention and creation action task modeling.

Software Design Framework for Content Creation

Nowadays, the various kind of software packages that support content creation consumed in touch-type terminals as an application have come into the market. These softwares have a different style of user task compare to existing user task. The reason why difference style has been appeared for now is because interaction timing has a important role of both content creation and consumption. For this reason, in this paper, we propose a software UI design framework for content creation using MB-UID and UCD model based on task modeling. The proposed framework is made up of five steps: business rule model, creation role model, creation flow model, creation action model, presentation model. Through this framework, we handle the interaction between a content creator and software user interface at the content creation phase. At the same time, we consider a possible interaction type which can occur by consumers at the consumption phase in advance.

Design of Multimensional Contents Retrieval Browser for IPTV

Interest in IPTV content increases, the number of users quickly and easily find the need for an interface that can be consumed as well as the individual`s taste is reflected in the menu structure is an emerging demand. Existing IPTV content depending on the browser menu, use the intuitive search criteria are presented differently, this is difficult and not take into account the characteristics of the user by providing an interface for users to interact with the content was limited. In this paper propose According to user requirements in IPTV, regardless of the type of content applicable to the multidimensional contents retrieval browser. This applies equally to the menu category and multidimensional approach based on simple, intuitive and can be used to visualize the content by users without detailed information about the multi-dimensional search to only the desired content will be available for consumption.