Radio

Tomorrow morning, Saturday the 20th, I’m going to be talking about how people react to intelligent systems and robots in a short interview on radio 2. NCRV Cappuccino, Radio 2, 9.00-12.00, I’ll be on around 10.30. It’s going to be quite relaxed & casual, looking forward to it – and to my coffee, considering it is a Saturday morning .

Monday evening: human-robot interaction ‘kenniscafé’ in De Balie

This Monday, the 15th, I’ll be participating in a discussion on human-robot interaction in culture & debate centre ‘De Balie’ here in Amsterdam. The evening is part of the ‘Kenniscafé’ series of discussions on current themes in science and technology. Themes will include social consequences of developments in robotics, requirements for interaction design and bonding with machines. Stefano Stramigioli (Twente) and Martijntje Smits (Rathenau Institute) will also participate in the discussion. Noel Sharkey and roboseal Paro’s developer Takanori Shibata will contribute to the event as well. Quite a nice way to spend a Monday evening, rsvp here.

Mobile experiment in full swing.

We’re currently conducting a quite exciting study on people’s interaction with mobile hazard monitoring systems. A dedicated room in the new UvA Science Park building has been converted to an industrial setting in which a potential crisis may or may not occur… We’ve got a pretty big set-up (>60 square meters) and it’s been been quite the hands-on build!

We’re currently about halfway through our experiment and are looking for a small number of additional participants.

New paper: robots & touch

New paper! June 18th we’ll present our work on touch and human-robot interaction at CASA 2009 here in Amsterdam. The full paper will appear in a special issue of the Journal of Computer Animation and Virtual Worlds. Our paper discusses an experiment on the effects of (observing) touch and proactivity on attitudes towards embodied social agents. Based on our results we think a holistic approach to interaction design for embodied characters’ social behaviour is the way to go.

CHI: from nomination to award!

My CHI’09 note on Interaction with Adaptive Spam Filters which was nominated for a best note award (see post below) has been chosen as one of the winners!

“Your paper has been chosen for a best of CHI 2009 Award. An award for best note indicates that the reviewers and the award jury judged your note to be one of four notes at CHI 2009 demonstrating work of the highest quality.”

Apart from presenting my note, I’ll also present a paper on the effects of touch at the human-robot interaction at the Workshop on The Reign of Catz and Dogz and we’ll be participating in the Mobile User Experience Research: Challenges, Methods & Tools workshop as well.

Best note nomination for CHI’09 note on user interaction with spam filters!

One of the studies I did here at Human-Computer Studies on people’s interaction with adaptive and autonomous systems investigated user interaction with spam filters. While spam filters might not appear the most exciting subject, exploring users’ interaction with them actually offers quite some interesting insights for developers of adaptive and autonomous systems. Spam filters are one of the few types of systems that take semi-autonomous decisions on the user’s behalf AND are actually used in a real-life context by many, many people. They often can also be trained and sometimes operate on somewhat nontransparent criteria.

In this study, I investigated interaction with both adaptive (trainable) and non-adaptive, rule-based filters. Turns out that while many of our participants who used an adaptive filter invested a lot of effort in training, this didn’t increase their trust, nor the level of autonomy they granted their filters; investment doesn’t always translate into acceptance. Additionally, small, sub-optimal interface design features such as filters icons caused many participants to not understand interface items, induced ‘incorrect’ training behaviour and uncertainty about filter activity. It’s interesting that while research on developing adaptive and autonomous systems is on the rise, we haven’t as a community solved some of the seemingly ‘mundane’ interface design issues on less complex systems such as spam filters.

Paper will be available as: Henriette Cramer, Vanessa Evers, Maarten van Someren, Bob Wielinga, Awareness, Training and Trust in Interaction with Adaptive Spam Filters, CHI’09.  Will post link to the paper as soon as it’s available.

Not only has the note been accepted, it’s also been nominated for a best note award!

Best UMUAI paper award!

My recent UMUAI article on recommender transparency and user acceptance was selected as the winner of the 2008 James Chen Annual Award for Best UMUAI Paper!

The award commemorates of James R. Chen, a researcher in the area of user modeling and information retrieval and is awarded yearly to one selected article from that year’s User-Modeling and User-Adapted Interaction journal volume.

The study described in the paper investigated the effects of offering explanations of personalised recommendations on trust and acceptance. Results show that explaining to the user why a recommendation was made increased acceptance of recommendations, but that it might not necessarily improve overall trust in the system itself. We also provided a number of design guidelines for user-adaptive systems based on our observations, concerning gradual adaptation, users’ mental models, identification of possible misconceptions and integration of recommendation features in the complete interaction design. Free access to the full paper here

Mobiles mobiles mobiles.

This weekend I’ll give a talk on trends in mobile HCI at the Amsterdam MobileDevCamp on 29 + 30 November. It will be an intro talk trying to get coders to not only focus on novel interaction methods and all things techie, but also into considering social interaction with mobile systems and areas such as mobile persuasion.

Check out www.mobiledevcamp.nl. “A full weekend devoted to developing mobile applications for the iPhone, Android and Symbian platforms. Organised by the Bubble Foundry and hosted at Mediamatic” The sign up procedure is somewhat cumbersome (uses upcoming.org), but it’s free and there’s lots to learn. It’s good to see these type of open events are being organized. Amsterdam needs more of them.

More research-related, I’ll also be participating in the workshop on mobile user interaction at CHI next spring. Still waiting for notifications on the rest of the stuff we sent off to CHI. Already read some quite favourable reviews, so fingers crossed for the final notification [update dec 2008: accepted. I've got a note  on interaction with adaptive spam filters and two workshop papers; one on human-robot interaction, one on mobile interaction].

Meanwhile I’m also working on our experiment on human interaction with autonomous mobile systems. The experiment context will be an environmental hazard monitoring system that uses information from both a sensor network and human users via mobile devices/phones. The overarching project aims to prevent catastrophic chemical incidents and reduce pollution through quick detection of harmful gasses and identification of pollution sources. If a potential hazard is detected or reported, the system will use human observation in and around the affected area to gather more information. Participating users will be asked by their mobile agent (e.g. application or service on phone/PDA) to self-report their observations. If necessary, the system provides location-based warnings. I’ll be carrying out a controlled experiment on effects of social behaviour of the system and its positioning as a distant entity that both caters to users but also ‘uses’ them as sensors for its own means.

In-vehicle agent paper

As part of my PhD-studies into user interaction with semi-autonomous systems, we conducted a small survey-based, experimental study comparing participant reactions to different interactions between an in-vehicle agent and a driver. I’ll be presenting the first part of our in-vehicle agent studies at the Workshop on Human Aspects of Ambient Intelligence (HAI) at the Int. Conference on Intelligent Agent Technology in Sydney, early December.

Abstract:

In-vehicle agents can potentially avert dangerous driving situations by adapting to the driver, context and traffic conditions. However, perceptions of system autonomy, the way an agent offers assistance, driving contexts and users’ personality traits can all affect acceptance and trust. This paper reports on a survey-based experiment (N=100) that further investigates how these factors affect attitudes. The 2×2, between-subject, video-based design varied driving context (high, low density traffic) and type of agent (providing information, providing instructions). Both type of agent and traffic context affected attitudes towards the agent, with attitudes being most positive towards the instructive agent in a light traffic context. Participants scoring high on locus of control reported a higher intent to follow-up on the agent’s instructions. Driving-related anxiety and aggression increased perceived urgency of the video scenario.

As soon as the online proceedings are available, I’ll post the link to the full paper.

Update: art recommender article, car agents & robots

My journal article on the effects of transparency on interaction with user-adaptive systems (finally) has been published in User Modeling and User-Adapted Interaction. We used transparent and non-transparent versions of a content-based art recommender to see whether user understanding affects trust and acceptance. Turns out that offering explanations did influence acceptance of systems decisions, but not trust in the system overall.

Cramer H., Evers V., Van Someren, M., Ramlal, S., Rutledge, L., Stash, N., Aroyo, L., Wielinga, B. (2008) ‘The effects of transparency on trust and acceptance in interaction with a content-based art recommender’, User Modeling and User-Adapted Interaction. ‘online first’ pdf

Our more recent research is focusing on concepts such as dealing with autonomy and perceptions of user control, but also on social and affective aspects of interaction, such as empathy.