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CHINZ Tables of Contents: 05060708091011121315

Proceedings of CHINZ'15, the ACM SIGCHI New Zealand Chapter's International Conference on Computer-Human Interaction

Fullname:Proceedings of the 15th International Conference of the NZ Chapter of the ACM's Special Interest Group on Human-Computer Interaction
Editors:Annika Hinze; David M. Nichols; Masood Masoodian
Location:Hamilton, New Zealand
Dates:2015-Sep-03 to 2015-Sep-04
Standard No:ISBN: 978-1-4503-3670-3; ACM DL: Table of Contents; hcibib: CHINZ15
Links:Conference Website
  1. Languages
  2. Text
  3. Health
  4. Data
  5. HCI & Scholarly Communication
  6. Keynotes


Translated Application Interfaces: Issues of Engagement BIBAFull-Text 1-4
  Paora Mato
In New Zealand, English is the language that dominates contemporary technologies. Usability testing was completed on a range of applications, available with a Maori-language interface, to gauge levels of awareness, engagement and perception. Nearly all of the respondents were unaware of the availability of these interfaces but most indicated they would prefer to use the Maori-language versions. In terms of engagement and usability, users initially engaged using Maori but switched to English when they wanted to quickly complete the task at hand. Few remained fully engaged with the Maori-language interfaces. High levels of language switching were reported and some frustration as the participants encountered new and unfamiliar uses of words. At face value the feedback suggests the translated interfaces contained unnecessary complications and that better design and content might have enhanced the user experience. However, there is evidence that extended use would enable users to become more familiar with the interfaces alluding to initial barriers created by a previous competence in another language -- in this case English. With this previous competence in mind it might be more useful to employ design concepts that would alleviate initial difficulties and serve to keep the user engaged in the target language for longer periods of time.
Three Little Pigs in a Sandwich: Towards Characteristics of a Sandwiched Storytelling based Tangible System for Chinese Primary School English BIBAFull-Text 5-8
  Todd Cochrane; Hongwei Pan; Eddy Hui
Work towards identifying characteristics of sandwich storytelling based tangible systems for Chinese Primary School English instruction starts with principles determined for Chinese primary school children when learning English. These principles are considered in the context of sandwiched storytelling. A review of a number of tangible projects for education presents the scope of tangible systems as they are applied in education. These lead to emerging themes, such as scale, that determine constraints on interaction design. A snippet from the traditional story the Three Little Pigs is used to reflect on characteristics of the design and implementation of this tangible system.


Reading text in an immersive head-mounted display: An investigation into displaying desktop interfaces in a 3D virtual environment BIBAFull-Text 9-16
  Cameron Grout; William Rogers; Mark Apperley; Steve Jones
This paper describes an experiment conducted as part of a larger project investigating the possibilities of using a virtual environment for users performing day-to-day computing tasks. The experiment is a user study analyzing the performance of reading tasks typical of a general purpose computing environment conducted in immersive virtual reality headsets. Results of this study are evaluated, and suggest that reading tasks can be performed with near equivalent performance in the virtual environment when compared to performance values obtained from baseline tasks on a traditional display.
Detecting Learner's To-Be-Forgotten Items using Online Handwritten Data BIBAFull-Text 17-20
  Hiroki Asai; Hayato Yamana
An effective learning system is indispensable for human beings with a limited life span. Traditional learning systems schedule repetition based on both the results of a recall test and learning theories such as the spacing effect. However, there is room for improvement from the perspective of remembrance-level estimation. In this paper, we focus on on-line handwritten data obtained from handwriting using a computer. We collected handwritten data from remembrance tests to both analyze the problem of traditional estimation methods and to build a new estimation model using handwritten data as the input data. The evaluation found that our proposed model can output a continuous remembrance-level value of zero to 1, whereas traditional methods output a only binary decision. In addition, the experiment showed that our proposed model achieves the best performance with an F-value of 0.69.
Design exploration of eBook interfaces for personal digital libraries on tablet devices BIBAFull-Text 21-30
  Nicholas Vanderschantz; Claire Timpany; Annika Hinze
Mobile eBook readers and reader applications are readily available and are marketed as convenient for accessing personal eBook collections. Different brands of readers and apps are frequently evaluated and compared in consumer, trade, and popular magazines, but rarely in academic studies. This present study examines nine personal digital library (pDL) interfaces, from which design cues are drawn and paper prototypes of pDL for eBooks are developed. The paper prototypes are evaluated in a usability study to elicit the eBook display preferences of users.


Repeatability of Eye-Hand Movement Onset Asynchrony Measurements and Cerebral Palsy: A Case Study BIBAFull-Text 31-38
  Alexander R. Payne; Beryl Plimmer; T. Claire Davies
In this paper we investigate if a participant with cerebral palsy displays a deficit in movement planning for simple pointing and gesture actions that are required to interact with a touchscreen. We performed a repeated measures case study with one participant with CP, and one typically developed (TD) participant. Measurements of the relative timing of eye and hand movements were made to see how they vary when participants have the opportunity to preplan a movement (by knowing where a target will appear), and to see if they were repeatable. As expected, the typically developed participant changed their coordination patterns when they could preplan a movement. This did not occur for the participant with cerebral palsy and suggests he has a reduced ability to preplan movements, or at least a preference to avoid doing so. This implies gesture based interaction to imagined targets could be less accessible to people with cerebral palsy. Visual affordances may help overcome this potential barrier. The relative timing of movements varied from session to session for the participant with CP, but not the TD participant.
Identifying the characteristics of usability that encourage prolonged use of an Activity Monitor BIBAFull-Text 39-42
  Poonam Pushkar Dhawale; Robert James Wellington
Together with the use of rapid prototyping techniques and efforts to reduce the production cost, wearable and mobile electronic devices are brought to the market faster than ever, with less time spent on actual usability testing of these devices for prolonged use. Due to this, the usability lifespan of such electronic devices has reduced significantly where consumers might be moving or upgrading on to using newer electronic devices more often than they really need to. Therefore, this paper focuses on identifying key characteristics of usability that may encourage prolonged use of an activity monitoring device. Also, to observe and record any user acceptance and/or usability issues that may arise from using an activity monitor over a prolonged period.
Determinants of Patients' Intention to Adopt Diabetes Self-Management Applications BIBAFull-Text 43-50
  Ananthidewi Maniam; Jaspaljeet Singh Dhillon; Nilufar Baghaei
Despite significant advances in medicine, diabetes mellitus remains a major health problem among diabetes patients (diabetics). Diabetes in Malaysia has become increasingly critical along with diabetes complications. Diabetes Self-Management Applications (DSMA) are impactful patient-centered tools that has immense potential in enabling diabetics to manage their health conditions and thereby prevent complications. This study identifies factors that influence the intention to adopt DSMA by diabetics in Malaysia. The aim is to develop a research model to represent the adoption of DSMA amongst diabetics in Malaysia. Previous work is reviewed to develop the proposed model which comprised of constructs from established models and othper constructs from the literature. To test the developed model, a quantitative approach was employed and established questionnaires were administered as research instrument for data collection. The findings indicate that Perceived Financial Risk, Perceived Privacy and Security Risk, Technology Anxiety and Facilitating Conditions have significantly positive relationship with the intention to adopt DSMA. Findings from this study serve as a guideline for DSMA developers in understanding the core factors that influence the adoption and use of diabetes health applications by diabetics.


An interactive spreadsheet model for visualizing dairy farm data BIBAFull-Text 51-55
  Shirley Gibbs; Kate Cromie; Ron Pellow
This paper describes the development of an interactive spreadsheet model (INT-VIS) developed to give users quick access to bespoke visualization representations of data from a dairy demonstration farm. Dairy farming has a long history in New Zealand with the country exporting ninety-five percent of the annual milk production. Demonstration Farms, such as the one which is the focus of this paper, have been established by educational institutes and industry groups as a way of promoting best practice dairying for this fast growing industry. One of the aims of such farms is to produce and share data so that other farmers will benefit from the information sourced. Typically, the information from the South Island Dairy Development Centre (SIDDC) demonstration farm at Lincoln University is collected weekly, entered into a spreadsheet, graphs and charts produced on an adhoc basis and shared with stakeholders by way of pdf documents on the organisation website. This paper describes the first steps in developing an interactive spreadsheet model to allow users to create their own bespoke visualizations.
Data Driven Usability: A Case for Adaptive Interfaces in Voice Based Menu Systems BIBAFull-Text 57-64
  Siddhartha Asthana; Pushpendra Singh
Interactive Voice Response (IVR) systems provide access to information over the phone by responding to a pre-defined menu either through key presses or voice commands. Despite being in use for a long period, IVR systems are still considered time-consuming and frustrating to use. In this work, we show that a significant portion of the call duration goes in selecting the correct menu option. Since the menu options are presented sequentially, more time is required to access menu options appearing later in the sequence, therefore, to reduce this, relevant menu options must appear early in the sequence. In this paper, we present our data driven prediction algorithms for adaptive rearrangement of menu options so that the relevant options appear early. We also show that adaptive approaches to decide the menu structure outperform existing static menu based IVR system. We have designed, deployed, and evaluated our schemes in the real world study.
Simulating Electricity Consumption Pattern for Household Appliances using Demand Side Strategies: A Review BIBAFull-Text 65-71
  Patrick Ozoh; Mark Apperley
This paper investigates research work related to the modelling and simulation of household electricity consumption with a view to developing a simulation to evaluate the effectiveness of demand-side management mechanisms. The eventual aim of the research is to be able to model household consumption down to the level of individual appliance use in order to explore and assess the impact of different demand-side strategies, both in individual household consumption, and on overall grid balance. The focus of this paper is to survey relevant research on simulation of household consumption, potential demand-side strategies and their impact, and modelling techniques for residential consumption. From this review, the paper provides a number of pointers for future effort in the area of modelling the impact of demand-side management strategies and techniques.

HCI & Scholarly Communication

A scientometric analysis of 15 years of CHINZ conferences BIBAFull-Text 73-80
  David M. Nichols; Sally Jo Cunningham
CHINZ is the annual conference of the New Zealand Chapter of the Special Interest Group for Computer-Human Interaction (SIGCHI) of the ACM. In this paper we analyse the history of CHINZ through citations, authorship and online presence. CHINZ appears to compare well with the larger APCHI conference on citation-based measures. 42% of CHINZ papers were found as open access versions on the web.
Initiative for an H-index based Rating of Conferences and Journals in HCI and Related Fields BIBAFull-Text 81-82
  Holger Regenbrecht; Tobias Langlotz
Research output metrics, in particular for peer-reviewed publications are of increasingly high importance for academics' careers. In Human-Computer Interaction (HCI) and related fields of research, like Computer Graphics and Multimedia, simple to use and objective measures like Thomson Reuter's impact factors aren't applicable. Ranking lists like the Australian ERA and CORE try to provide an alternative, but are often criticized for being subjective.
   We are proposing an additional, alternative rating system which is entirely based on Hirsch indices by assigning four categories of quality (A*, A, B, C) to certain ranges (30+, 20-29, 10-19, 0-9) of H5 indices gathered from Google Scholar. We describe our methodology, results, limitations, and opportunities of this proposed "CHINZ" rating.


From Materialising to Memories: Design research to support personal remembering BIBAFull-Text 83
  Elise van den Hoven
Perhaps the term computer 'memory' has led people to believe that human memory has to be perfect and infallible. Many people worry when they realise they forget and some turn to recording and collecting as much as they can, e.g. photos or videos through life logging or personal data as seen in the quantified-self trend. Some people assume that by collecting they can avoid forgetting or at least have access to the information anytime later. And that is where they are wrong. First of all, recordings are not equivalent to memories, and memories 'can not be stored'. Secondly it has already been shown that people collect too much and organize too little for them to be able to find information later [1]. Thirdly, human memory works best when we forget... a lot.
   What I want to talk about is my vision [2] that we can use design research to support human remembering by supporting our memory's functions [3], which include a directive function (using the past to guide present and future thoughts and behaviours, e.g. solving problems), a self-representative function (creating a sense of self over time) and a social function (developing and nurturing relationships, through sharing of personal experiences). It is important to realise that in order to support these functions there is no need to improve our remembering capabilities, however it could benefit from the right type of support. Since remembering is a reconstructive process, individual memories are subject to change, continuously, and what someone experiences as a memory does not have to be the same as what happened or what other people remember from the experience.
   Bits of information from the original experience can be used to stimulate and facilitate the reconstruction process. These so-called memory cues [4], which can be anything: from a photo, a song to a person or a location, are at the core of our research. We use a people-centred approach to study memory cues in everyday life, which informs the design of interactive systems that present these memory cues. Since these cues are often digital, while people prefer material objects [e.g. 5], we combine material and digital in our studies and designs.
Tangible Interaction: A case for light-weight tangibles BIBAFull-Text 85
  Beryl Plimmer
The allure of using everyday objects to interact with virtual systems has been around since the beginnings of HCI. There have been many exciting research projects. Without exception they report increase user engagement and a fun user experience; positive attributes for learning and gaming systems. A few of the projects have even made it to products. However there are still major challenges to overcome in order to be able to use any everyday object as an interactive device.
   There appear to be some cognitive advantages to manipulating physical objects. However these advantages are not yet well understood and more research is needed to flesh out our understanding. In the meantime we can posit that the advantages come from the increased sensory engagement -- tactile, proprioceptive and kinesthetic, the true 3D visual space, our social norms of collaboration and turn-taking and our understanding of the physical world.
   As an example, recall when you have been sitting with a friend, colleague or child and one of you has grabbed the salt and pepper to represent the sun and earth, or such. Today and alternative might be to pull out a tablet and look for an animation. The animation will likely be more accurate, but less engaging. Which would be understood better, remembered more clearly? Could a blend of the two, with the salt and pepper used as tokens to manipulate the virtual animation, be built?
   Of course we could do this with current technologies, just not in the cafe. To sense the salt and pepper we could use image processing. This needs a minimum of two cameras to accurately sense the position and orientation. However picking up and moving the objects partially obscures them making tracking more difficult. A better set up is about 4 cameras -- and well behaved participants. Alternatively we could sense the objects on or near to a surface using a range of sensing technologies. The limitations with the surface sensing approach are distance from the surface and fidelity of the positioning. We could blend cameras and surface sensing. Is near field radio waves a possibility?
   The second challenge is how and where to provide feedback to the user on the effect of their actions on the virtual world. Should we show the world on a 2D display, through augmented or virtual reality headsets, have actuated tangibles that will travel the paths for the sun and earth? Clearly, to do this in the wild with current technologies, the setup time would be considerable and the moment would be lost.
   The challenge with light-tangibles is to be able to play out the scenario above without spending a 'month of Sundays' designing and building the system and going to the lab to test it. In this talk I will explore the challenges and possibilities of light-weight tangible interaction. Will there be a day when we can simply pick up the salt and pepper and play out the scenario?