Group items tagged

Abstract :"Quality of experience (QoE) is a measure of the customer's experience with a service. In an online gaming scenario, players expect the experience to be realistic, continuous and precise. It is important to know not just the end user's experience but also the probable cause of the experience, good or bad. Understanding the cause is essential for improving the game design via a feedback loop, which in turn con- tributes towards game longevity. We begin by focussing on two broad categories of the QoE measurement tech- niques for gaming scenario, subjective and objective measurement. We then study two frameworks, One-Click[4] and Perceptual View Inconsistency[5] from the perspec- tive of the scenarios in which they can be applied, their ability and more importantly, their inability to measure certain aspects of end user experience, and the diculties encountered while applying these techniques. Subsequently, we try to propose a sim- ple scheme in which both of these techniques can be used to complement each other in a real life scenario, and get the best out of both."

"For millennia, humans have participated in rituals in order to experience meaning and purpose in life. With the rise of digital games as a form of media, designers are increasing seeking to use games to provide meaningful experiences - the kind of experiences provided by rituals. This project, Farosia, explores the mechanisms by which rituals convey meaning, and presents a detailed framework for how to incorporate ritual into interactive experience design. The project consists of several small game prototypes, each intended to emphasis different aspects of ritual. By developing and playtesting these prototypes, we were able to determine how to implement these ritual modes within digital experiences, and how to use them to create a more meaningful experience to the user."

Abstract: "A recent trend within computational intelligence and games research is to investigate how to affect video game players' in-game experience by designing and/or modifying aspects of game content. Analysing the relationship between game content, player behaviour and self-reported affective states constitutes an important step towards understanding game experience and constructing effective game adaptation mechanisms. This papers reports on further refinement of a method to understand this relationship by analysing data collected from players, building models that predict player experience and analysing what features of game and player data predict player affect best. We analyse data from players playing 780 pairs of short game sessions of the platform game Super Mario Bros, investigate the impact of the session size and what part of the level that has the major affect on player experience. Several types of features are explored, including item frequencies and patterns extracted through frequent sequence mining."

Abstract: "Cloud gaming now makes any computer game playable on a thin client without the previous worries and frustrations about the hardware requirements. It frees players from the need to frequently upgrade their computers as they can now play games that are hosted on remote servers with a broadband Internet connection and a thin client. However, cloud games are intrinsically more susceptible to latency than online games because game graphics are rendered on cloud servers and thin clients do not possess game state information that is required by delay compensation techniques. In this paper, we investigate how the response latency in cloud gaming would affect users' experience and how the impact of latency on players' experience varies among different games. We show that not all games are equally friendly to cloud gaming. That is, the same degree of latency may have very different impacts on a game's quality of experience depending on the game's real-time strictness. We thus develop a model that can predict a game's real-time strictness based on the rate of players' inputs and the game screen dynamics. The model can be used to simultaneously enhance players' gaming and optimize the operation cost of data centers."

Abstract: "We present concepts of user experience (UX) research and show application areas where UX can be applied. We categorise assessment methods, and present estimation models and metrics of UX. Especially the relations between UX and bio-physiological responses, as well as observations are in the foreground." Includes a section on gamification and game experience.

Abstract: "Mobile gaming is a big driver of app marketplaces. However, few mobile games deliver truly distinctive gameplay experi- ences for ad hoc collocated users. As an example of such an experience, consider a sword ght dual between two users facing each other where each user's phone simulates a sword. With phone in hand, the users' thrusts and blocks translate to attacks and counterattacks in the game. Such Phone-to- Phone Mobile Motion Games (MMG) represent interesting and novel gameplay for ad hoc users in the same location. One enabler for anMMG game like sword ght is continuous, accurate distance ranging. Existing ranging schemes cannot meet the stringent requirements of MMG games: speed, ac- curacy and noise robustness. In this work, we design FAR, a new ranging scheme that can localize at 12Hz with 2cm median error while withstanding up to 0dB noise, multipath and Doppler eect issues. Our implementation runs on com- modity smartphones and does not require any external in- frastructure. Moreover, distance measurement accuracy is comparable to that of Kinect, a xed-infrastructure motion capture system. Evaluation on users playing two prototype games indicate that FAR can fully support dynamic game motion in real-time."

Abstract: "In recent years videogame companies have recognized the role of player engagement as a major factor in user experience and enjoyment. This en-couraged a greater investment in new types of game controllers such as the WiiMote™, Rock Band™ instruments and the Kinect™. However, the native software of these controllers was not originally designed to be used in other game applications. This work addresses this issue by building a middleware framework, which maps body poses or voice commands to actions in any game. This not only warrants a more natural and customized user-experience but it al-so defines an interoperable virtual controller. In this version of the framework, body poses and voice commands are respectively recognized through the Ki-nect's built-in cameras and microphones. The acquired data is then translated into the native interaction scheme in real time using a lightweight method based on spatial restrictions. The system is also prepared to use Nintendo's Wiimote™ as an auxiliary and unobtrusive gamepad for physically or verbally impractical commands. System validation was performed by analyzing the per-formance of certain tasks and examining user reports. Both confirmed this ap-proach as a practical and alluring alternative to the game's native interaction scheme. In sum, this framework provides a game-controlling tool that is totally customizable and very flexible, thus expanding the market of game consumers."

abstract: "Creating graphical user interfaces (GUI) for stereoscopic 3D (S3D) games is a difficult choice between visual comfort and effect. We present a S3D Game GUI Design Space and a list of S3D-specific attributes that emphasizes integrating visually comfortable interfaces into the game world, story and S3D view. To showcase our approach, we created two GUI concepts and evaluated them with 32 users. Our results show quality improvements for a combination of bottom position and visual attachment for a menu. In a referencing interface, placing the reference near to the target depth significantly improved perceived quality, game integration, and increased presence. These results confirm the need to create S3D GUIs with perceptual constraints in mind, demonstrating the potential to extend the user experience. Additionally, our design space offers a formal and flexible way to create new effects in S3D GUIs."

Abstract: "The collaborative nature of many modern multiplayer games raises a lot of questions in cooperative game design. We address one of them in this paper by analyzing cooperative game patterns in remote gameplay in order to define benefits and drawbacks for each one. With the help of a user experiment, we analyzed player experience in a set of existing cooperative patterns for games played remotely without communication. By comparing patterns, supporting closely- and looselycoupled collaboration, we discovered that the first type provided a more enjoyable experience but introduced additional challenges in case of a lack of communication. By analyzing patterns for both closely- and loosely-coupled interaction, we determined the most beneficial pattern within each type. We concluded with the results of a pattern comparison in colocated and remote setups."

"Game design is a sibling discipline to software and Web design, but they're siblings that grew up in different houses. They have much more in common than their perceived distinction typically suggests, and user experience practitioners can realize enormous benefit by exploiting the solutions that games have found to the real problems of design." (published 2012, excerpts in Google Books)

Audio doesn't effect user engagement but effects on interest in the narrative are observed

"Online games increasingly sell virtual goods to generate real income. As a result, it is increasingly important to identify factors and theory of consumption values that affect intent to purchase virtual goods in online games. However, very little research has been devoted to the topic. This study is an empirical investigation of the factors and theory of consumption values that affect intent to purchase virtual goods in online games. The study determines the effects of game type, satisfaction with the game, identification with the character, and theory of consumption values on intent to purchase virtual goods. The study used a survey to collect information from 523 virtual game users. Study results showed that game type is a moderating variable that affects intent to purchase virtual goods. And it demonstrated that role-playing game users are affected by theory of consumption values: functional quality, playfulness, and social relationship support. Moreover, war-strategy game users are affected by satisfaction with the game, identification with the character, and theory of consumption values: price, utility, and playfulness. The study also presents conclusions, proposes applications, and describes opportunities for further research."

Abstract: "As a way to support developers , we propose the creation of specialized tools to deal with accessibility. The hypothesis defined was that it is possible to produce tools that coul d reduce the cost and effort needed to adapt games for people with special needs while achi eving a sufficient level of usability and a pleasant player exper ience . Because of the ambitious of the approach , the goal of the project is to explore if it is feasible through preliminary research . T hree experiments were set up to cover and explore different alternatives , given the diversity of player characteristics and game develop ment approaches . In these experiments we targeted t wo different platforms: a desktop game authoring tool oriented to educators , and a mobile game development framework oriented to programmers . In these experiments we used the to ols developed to produce several games that were also tested by end users . While the project focuses on disability, the ideas proposed can be generalized and applied to support optimizing game interfaces for a wide and diverse audience."

Abstract: "Through the use of an online discussion, this study collected the detailed perspectives of 29 'hardcore' and 'casual' gamers, regarding the topic of FPS video games. It investigates what the gamers want in a FPS by means of an online discussion which builds on the benefits of both ethnography and focus group methodologies. Since the study's main goal was exploratory, a qualitative approach was considered the most appropriate; in addition to this, the method used to collect the data was done within a grounded theory framework. This study finds that, though graphics have historically been a major factor in driving the success of a FPS video game, this is no longer the case. Gamers expect there to be a balance between the different components, with a more holistic gaming experience desired, and that too much focus on one component at the expense of another will result in an unsatisfactory video game experience. This can be seen in comments given by the participants indicating too much emphasis of the graphics quality in a FPS and not enough on story or the multiplayer aspects results in a video game which is neither fun nor praiseworthy. The latter is perceived significant as with such an oversaturation in the video game market, developers rely heavily on positive word of mouth to advertise their games. This study's main goal was to develop a better understanding of the expectations of gamers regarding FPS; in doing so, it has laid out the basis for producing a 'magic formula' for a great FPS video game. It has also highlighted several other areas which need further investigation in order to better understand the behavioural motives and actions of gamers from both 'hardcore' and 'casual' communities."

Abstract: "Our study was carried out in order to improve our understanding of the relationship between 3D audio and video, and user experience in video games. In order to determine the best way to attempt to measure these effects, we researched several methods of 3D video and 3D audio delivery. We decided to use two different games to gauge the effectiveness of 3D video, Mario Kart 7 and Crysis 2. Due to a small sample size, we were unable to conclude strongly in either way about many of the factors we believed that 3 D video and audio would effect, but were able to see an increase in enjoyment and perceived ability from our surveys."

Abstract: "This thesis explores role-playing games, an existing genre within the current game industry. Role-playing games have many different parts which together create the whole game experience for the user. However, this research has focused on what arguably can be said to be the core gameplay feature of role-playing games: The battle system. This was mainly conducted by analyzing existing games using different methods, primarily by identifying gameplay design patterns in the games, and comparing them using a cluster method. The use of patterns allowed basic elements for observing and analyzing the relation between different role-playing games while the clusters provide overviews of the subcategories of the role-playing genre. This thesis presents view of the role-playing genre from the perspective of combat systems through two main results. The first result is the trees created by the clusters which explain subgenres through the presence of specific gameplay design patterns. The second result is four categories of patterns: those which illustrate patterns found in nearly all role-playing games; those that define the tree result; those that can have strong impact on gameplay but without affecting subgenre membership; and those that link combat system to other parts of the gameplay. Through this, the research has established a view on the design space of role-playing games and created visualizations of how different role-playing games relate to each other. From this relation a designer can further understand how to design for different gameplay experiences for the user."

"Game-based simulation systems are increasingly being used to train users in several applications across government, in- dustry, and academia. Designing game-based training sys- tems that can measurably improve learning while providing an engaging training experience is a challenging problem. In this paper, we describe a novel framework that tightly inte- grates game-based training systems with instructional com- ponents using data analysis to address this problem. Intelli- gent training systems based on this framework dynamically adapt both the training and the instructional components to measurably improve learning in play sessions. We propose a three phase approach to automatically identify points in a play session to predict high-value future scenarios, validate predictions, and prescribe actions. A case study using the KDD Cup 2010 educational data set is described illustrating the e®ectiveness of the proposed approach."

Abstract: "In our energy-restricted world, planners and engineers have to cope with problems of CO2 emissions and oil- and gas-shortages. Many planning activities not captured under the heading of "futures studies" share common goals like dealing with an uncertain, complex future. We focus on two novel approaches: agent-based modelling and serious games. These approaches, even though they stem from the same general systems theory roots, allow its users to experience "reality" in different ways. This has implications for when and how to use these methods in scanning future developments and how these are communicated."

Abstract: "Cloud gaming provides game-on-demand (GoD) services over the Internet cloud. The goal is to achieve faster response time and higher QoS. The video game is rendered remotely on the game cloud and decoded on thin client devices such as tablet computer or smartphone. We design a game cloud with a virtualized cluster of CPU/GPU servers at USC GamePipe Laboratory. We enable interactive gaming by taking full advantage of the cloud and local resources for high quality of experience (QoE) gaming. We report preliminary performance results on the game latency and frame rate. We find 109 ~ 131 ms latency in using the game cloud, which is 14% ~ 38% lower than 200 ms latency experienced on a thin local computer. Moreover, the frame rate from the cloud is 25% ~ 35% higher than that of using a client computer alone. Base on these findings, we anticipate game cloud to have a performance gain or QoS improvement of 14% ~ 38% over video gaming on a thin client device such as a smartphone or a tablet computer."

"more research and development still needs to be done to set game usability testing methods apart from usability methods used for productivity software or web site development. In this paper, I will detail the history of video games and video game usability, including the qualitative and quantitative importance of the subject; some of the current methods being utilized by game developers to test game usability; and some methods being researched and developed now to impact game usability testing in the future."