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Paul presented our paper at Pervasive 2008

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Paul presented after lunch our full paper on a development approach and environment for mobile applications that supports underlying user models [1]. In the paper he shows how you can create applications while programming by example where the development environment automatically adds a KLM model. In this way the developer becomes automatically aware of estimated usage times for the application. The paper is work that builds on our paper on KLM for physical mobile interaction which was presented last year at CHI [2]. The underlying technology is the embedded interaction toolkit [3] – have a look – perhaps it makes you applications easier, too.

[1] Paul Holleis, Albrecht Schmidt: MAKEIT: Integrate User Interaction Times in the Design Process of Mobile Applications. In: Proceedings of the Sixth International Conference on Pervasive Computing, Pervasive’08. Sydney, Australia 2008, S. 56-74.

[2] Holleis, P.; Otto, F.; Hußmann, H.; Schmidt, A.: Keystroke-Level Model for Advanced Mobile Phone Interaction. In: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (San Jose, California, USA, April 28 – May 03, 2007). CHI ’07. ACM Press, New York, NY, 1505-1514.. 2007.

Keynote at Pervasive 2008: Mark Billinghurst

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Mark Billinghurst presented an interesting history of augmented reality and he showed clearly that camera phones are the platform to look out for. He reminded us that currently the 3D performance of mobile phones is similar to the most powerful 3D graphics cards show 15 years ago at SIGGRAPH. Looking back at Steven Feiner’s backpack [1] – the first augmented reality system I saw – can tell us that we should not be afraid to create prototypes that may be a bit clumsy if they allow us to create a certain user experience and for exploring technology challenges.

In an example video Mark showed how they have integrated sensor information (using particle computers) into an augmented reality application. Especially for sensor-network applications this seems to create interesting user interface options.

One reference on to robust outdoor tracking done at Cambridge University [2] outlines interestingly how combining different methods (in this case GPS, inertial, computer vision and models) can move location techniques forward. This example shows that high precision tracking on mobile devices may not be far in the future. For our application led research this is motivating and should push us to be more daring with what we assume from future location systems.

Mark argue to look more for the value of experience – the idea is basically that selling a user experience is of higher value than selling a service or a technology. This view is at the moment quite common – we have seen this argument a lot at CHI2008, too. What I liked with Mark’s argument very much is that he sees it in a layered approach! Experience is at the top of a set of layers – but you cannot sell experience without having technology or services and it seems a lot of people forget this. In short – no experience design if you do not have a technology working. This is important to understand. He included an example of interactive advertisement (http://www.reactrix.com/) which is interesting as it relates to some of the work we do on interactive advertisement (there will more as soon as we have published our Mensch und Computer 2008 paper).

His further example on experience was why you value a coffee at Starbucks at 3€ (because of the overall experience) reminded me of a book I recently read – quite a good airline/park read (probably only if you are not an economist) – makes the world a bit understandable [3].
Build enabling technologies and toolkits as means to improve one’s citation count was one of Mark’s recommendations. Looking back at our own work as well as the work of the Pervasive/Ubicomp community there is a lot of room for improvement – but it is really hard to do it …

[1] S. Feiner, B. MacIntyre, T. Höllerer, and T. Webster, A touring machine: Prototyping 3D mobile augmented reality systems for exploring the urban environment. Proc. ISWC ’97 (First IEEE Int. Symp. on Wearable Computers), October 13-14, 1997, Cambridge, MA. Also in Personal Technologies, 1(4), 1997, pp. 208-217, http://www1.cs.columbia.edu/graphics/publications/iswc97.pdf, http://www1.cs.columbia.edu/graphics/projects/mars/touring.html

[2] Reitmayr, G., and Drummond, T. 2006. Going out: Robust model-based tracking for outdoor augmented reality. In Proceedings of IEEE ISMAR’06, 109–118.http://mi.eng.cam.ac.uk/~gr281/docs/ReitmayrIsmar06GoingOut.pdf, http://mi.eng.cam.ac.uk/~gr281/outdoortracking.html

[3] Book: Tim Harford. The Undercover Economist. 2007. (German Version: Ökonomics: Warum die Reichen reich sind und die Armen arm und Sie nie einen günstigen Gebrauchtwagen bekommen. 2006.)

Opening of Pervasive 2008

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This morning the pervasive 2008 conference started in Sydney. The conference hotel is in the heart of the city at Darling Habour. As in recent years the conference is very competitive (acceptance rate of about 16%) and features interesting technologies and high quality research.

The program with links to Springer-Link is available at http://www.pervasive2008.org/Program/
One presentation included a slide with a quote about the technology he created in the project – will not tell which paper/author it is. Look in the proceedings and pick your favorite. This quote seems questionable at first – but it describes the essence in the difficulty of creating new technologies 😉

Workshop on Smart Homes at Pervasive 2008

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Today we had our Pervasive at home workshop – as part of Pervasive 2008 in Sydney. We had 7 talks and a number of discussions on various topics related to smart homes. Issues ranged from long term experience with smart home deployments (Lasse Kaila et al.), development cycle (Aaron Quigley et al.), to end-user development (Joëlle Coutaz). For the full workshop proceedings see [1].

One trend that can be observed is that researchers move beyond the living lab. In the discussion it became apparent that living labs can start research efforts in this area and function as focus point for researchers with different interests (e.g. technology and user-centred). However it was largely agreed that this can only be a first step and that deployments in actual home settings are becoming more essential to make an impact.

On central problem in smart home research is to develop future devices and services – where prototyping is based on current technologies and where we extrapolate from currently observed user behavior. We had some discussion how this can be done most effectively and what value observational techniques add to technology research and vice versa.

We discussed potential options for future smart home deployments and I suggested creating a hotel where people can experience future living and agree at the same time to give away their data for research purpose. Knowing what theme-hotels are around this idea is not as strange as it sounds 😉 perhaps we have to talk to some companies and propose this idea…

More of the workshop discussion is captured at: http://pervasivehome.pbwiki.com/

There are two interesting references that came up in discussions that I like to share. First the smart home at Duke University (http://www.smarthome.duke.edu/), which is dorm that is a live-in laboratory at Duke University – and it seems it is more expensive that the regular dorm. The second is an ambient interactive device, Joelle Coutaz discussed in the context of her presentation on a new approach to end-user programming and end-user development. The Nabaztag (http://www.nabaztag.com/) is a networked user interface that includes input and output (e.g. text2speech, moveable ears and LEDs) which can be programmed. I would be curious how well it really works to get people more connected – which relates to some ideas of us on having an easy communication channels.

[1] A.J. Brush, Shwetak Patel, Brian Meyers, Albrecht Schmidt (editors). Proceedings of the 1st Workshop on “Pervasive Computing at Home” held at the 6th international Conference on Pervasive Computing, Sydney, May 19 2008. http://murx.medien.ifi.lmu.de/~albrecht/pdf/pervasive-at-home-ws-proceedings-2008.pdf

What can we learn from legacy-free washbasins?

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In Sydney I saw a legacy-free setup for washing hands in a public bathroom. I was surprised at the simple and solution with high utility! It is only a board mounted in an angle with water taps above. For typical use (washing hands under a flow of water) this is as good as a traditional setup. From looking at it, the legacy-free setup seems much easier to clean. I have never used a washbasin in a public bathroom by filling it – and I have never seen this functionality used (typically you can not use it in the lagacy way as there is not plug)… nevertheless most setups have washbasin.

Back to computing – what does it tell us? Looking at the operating systems I use, the applications and devices I see a lot of washbasin! Functionality that is never used but makes maintenance pretty expensive is a part of most of them. Looking at architecture as well as user interfaces the above example can motive to look at non-standard solutions…

Poor man’s location awareness

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Over the last day I have experienced that very basic location information in the display can already provide a benefit to the user. Being the first time in Sydney I realized that network information of my GSM-phone is very reliable to tell me when to get off the bus – obviously it is not fine grain location information but so far always walking distance. At some locations (such as Bondi beach) visual pattern matching works very well, too 😉 And when to get off the bus seems a concern to many people (just extrapolating from the small sample I had over the last days…).

In my pervasive computing class, which I currently teach, we covered recently different aspects of location based systems – by the way a good starting point on the topic is [1] and [2]. At We discussed issues related to visual pattern matching – and when looking at the skyline of Sydney one becomes very quickly aware of the potential of this approach (especially with all the tagged pictures on flickr) but at the same time the complexity of matching from arbitrary locations becomes apparent.

Location awareness offers many interesting questions and challenging problems – looks like there are ideas for project and thesis topics, e.g. how semantic location information (even of lower quality) can be beneficial to users or finger printing based on radio/TV broadcast information.

[1] J. Hightower and G. Borriello. Location systems for ubiquitous computing. IEEE Computer, 34(8):57–66, Aug. 2001. http://www.intel-research.net/seattle/pubs/062120021154_45.pdf

[2] Jeffrey Hightower and Gaetano Borriello. Location Sensing Techniques. UW-CSE-01-07-01.

A service for true random numbers

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After the exam board meeting at Trinity College in Dublin (I am external examiner for the Ubicomp program) I went back with Mads Haahr (the course director) to his office. Besides the screen on which he works he has one extra where constantly the log entries of his web server is displayed. It is an interesting awareness devices 😉 some years ago we did a project where we used the IP-address of incoming HTTP-requests to guess who the visitors are and to show their web pages on an awareness display [1], [2]. Looking back at web visitors works very well in an academic context and with request out of larger companies where one can expect that information is available on the web. Perhaps we should revisit the work and look how we can push this further given the new possibilities in the web.

The web-server Mads has in his office is pretty cool – it provides true random numbers – based on atmospheric noise picked up with 3 real radios (I saw them)! Have a look at the service for yourself: www.random.org. It provides an HTTP interface to use those numbers in your own applications. I would not have though of a web service to provide random numbers – but thinking a little more it makes a lot of sense…

[1] Schmidt, A. and Gellersen, H. 2001. Visitor awareness in the web. In Proceedings of the 10th international Conference on World Wide Web (Hong Kong, Hong Kong, May 01 – 05, 2001). WWW ’01. ACM, New York, NY, 745-753. DOI= http://doi.acm.org/10.1145/371920.372194

[2] Gellersen, H. and Schmidt, A. 2002. Look who’s visiting: supporting visitor awareness in the web. Int. J. Hum.-Comput. Stud. 56, 1 (Jan. 2002), 25-46. DOI= http://dx.doi.org/10.1006/ijhc.2001.0514

Mobile Physical Interaction in the Wild

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The parking meter is some streets of Dublin are an interesting example of an interface following the basic idea of physical mobile interaction. As you see from the manual sticker – the first part is on the mobile phone: you call a number and then provide the place in which you are (by typing in a number). The second part is then on the ticket machine – till you get the print out. The amazing thing was I really saw people using it!

The user interface design is interesting as they use on the phone typical phone interaction (basically dialing an number) and keep the interaction with the ticket machine the same (except there is no need to insert coins) as it was before. But looking at some work we did in the PERCI project with DoCoMo in Munich we can tell that this is just the initial state of physical mobile interaction [1] – it can be expected that this will become more common!

[1] Broll, G., Siorpaes, S., Rukzio, E., Paolucci, M., Hamard, J., Wagner, M., and Schmidt, A. 2007. Supporting Mobile Service Usage through Physical Mobile Interaction. In Proceedings of the Fifth IEEE international Conference on Pervasive Computing and Communications (March 19 – 23, 2007). PERCOM. IEEE Computer Society, Washington, DC, 262-271. DOI= http://dx.doi.org/10.1109/PERCOM.2007.35

Why are not more people studying computer science?

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Wherever I meet with companies at the moment one of the first questions is “do you have good students – we need people…”. It seems good computer science skills are useful 😉 However to me it is not clear why so few people go into this field. Here is my favorite short list what you should have to study CS: (1) you are creative; (2) you are communicative; (3) you solve problems systematically; (4) you have an ability to generalize.

Accessibility Workshop – Implication of ubiquitous computers

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In Gelsenkirchen (just 15 minutes on the train) was today a conference on accessibility “Einfach für Alle” (easy for all). http://www.einfach-fuer-alle.de/tagung/

I was invited as an expert in the workshop on business opportunities for the internet of the future and of assistive technologies. The workshop was moderated by Thomas Hänsgen and the other experts were Arthur Ortega (Yahoo!) and Günther Weber (Vodafone). The discussion was very lively and I learned a lot! Some results of the discussion are online at the workshop website.

To start with everyone had the opportunity to give some statements – I had the following: (1) digital assistance will enhance the capabilities for everyone; (2) contextualizing services will increase locale interaction; (3) user generated content will help us to make the real world more accessible. See the slides with topics and examples (in German).

Booting a start-up to teach?

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We made our plans for setting up a company for creating a unique learning experience more specific. Uwe Bayer from Fraunhofer IAIS used in our discussion the phrase “don’t play to run company – really run a company” – which I think describes the essences of we would like to achieve. We plan to have some detailed information (and the recruitment process) out by the end of the month. If you are a student close to finishing your studies AND you have academic skills in your subject AND you have the drive to create a start-up THEN you should contact me in the beginning of June – we look for about 20 people with IT and business background that like to take a risk!

What to do with a Wii?

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Andreas Bulling from Zürich sent me a link to some amazingly creative Wii projects: http://www.cs.cmu.edu/~johnny/projects/wii/ – it is really interesting how many people play with this device and get interesting ideas going!

At the TEI’08 conference in Bonn Susanne Boll an her team presented interesting work on gesture recognition using Wiimote’s acceleration sensor [1]. People from Georgia Tech presented another idea using this controller: WiiArt [2]. We currently think of using it in teaching to make some exercises (e.g. measuring Fits’ law 😉 more exciting…

[1] Schlömer, T., Poppinga, B., Henze, N., and Boll, S. 2008. Gesture recognition with a Wii controller. In Proceedings of the 2nd international Conference on Tangible and Embedded interaction (Bonn, Germany, February 18 – 20, 2008). TEI ’08. ACM, New York, NY, 11-14. DOI= http://doi.acm.org/10.1145/1347390.1347395

[2] Lee, H., Kim, H., Gupta, G., and Mazalek, A. 2008. WiiArts: creating collaborative art experience with WiiRemote interaction. In Proceedings of the 2nd international Conference on Tangible and Embedded interaction (Bonn, Germany, February 18 – 20, 2008). TEI ’08. ACM, New York, NY, 33-36. DOI= http://doi.acm.org/10.1145/1347390.1347400

Teacher Training: mobile phone programming in JAVA

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Yesterday evening we organized a teacher training session on JAVA programming for mobile phone. We introduced them to the basics of Java ME and gave a tutorial on using Netbeans with mobility pack for creating applications. One idea for using the phone as an application platform is to increase motivation.

In some of the discussions we came across the issue of “how to teach programming” in school. I personally thing that explaining and learning the basic concepts of statement, variable, if-then, and loop is best done with not much around… I showed some of the activities on the OLPC for programming: Pippy (http://wiki.laptop.org/go/Pippy) and Turtle Art (http://wiki.laptop.org/go/Turtle_Art) and we talked about processing (http://www.processing.org/) as a further option.

Mensch und Computer program committee meeting in Lübeck

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Yesterday night I flew to Hamburg and traveled on to Lübeck – a quite nice town in the north of Germany – for the program committee meeting of Mensch und Computer 2008. This morning I got up a little earlier to walk around the city – as it was my first time visiting. The building I could see when walking into town however was oddly familiar, after some moments I recalled that it is the Holstentor which was pictured on the 50DM note (DM = German Mark – the money used in Germany till 2001 before we exchanged it for the Euro ;-).

In the meeting we discussed a large number of submission made to Mensch und Computer 2008. It seems there are quite an interesting number of papers in the program which make the conference worth while. We will also run the second edition of our workshop on Automotive User Interface and Interactive Applications. The automotive workshop we ran 2007 in Weimar was with about 30 participants very successful.

Meeting on Human Centered in Vienna

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Ina Wagner, Volker Wulf and Kjeld Schmidt organized a meeting to get together people from all over Europe that work on human centred computing. We had interesting discussions what is specific and distinct European human centred computing and how well it is represented in organizations such as the ACM.

Some years ago there has been significant support in this area of research on a European level – namely I3 and the disappearing computer initiative. Currently many of us feel that the value of user centred research is not supported enough and hence innovation happens somewhere else which can lead to massive disadvantages for European industries. One central issue is that we need more to communicate value of user interface research.

The need for user interface research is undoubtedly accepted. One example is the ISTAG report of 2001 that tried to look into 2010 – a future that is now not too far anymore. Looking at the challenges stated in this report it becomes clear that most of the technical issues are solved but this does has not lead to a breakthrough with regard to the visionary scenarios. But towards the challenge “natural interfaces” we have still a long way to go. If we really want to get closer to those scenarios of ambient intelligence that are human friendly we really have to push on interaction and user interfaces – hopefully decision makers on a European level will get it 😉

Florian Alt back from the US – and now with us in Essen

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Florian Alt studied media informatics at the LMU in Munich and has now joined our group. In Munich he worked during his project thesis with me on how to improve hospital work in pervasive computing technologies [1]. Last year he came to Fraunhofer IAIS and did his master thesis (a annotation system for the WWW based on the UsaProxy, http://fnuked.de/usaproxy/). Before joining us he worked for some months in New York setting up an IT department for a German company that opened a branch in the USA… we are happy for the brain gain 😉

[1] A. Schmidt, F. Alt, D. Wilhelm, J. Niggemann, H. Feussner. Experimenting with ubiquitous computing technologies in productive environments. e & i Elektrotechnik und Informationstechnik, Springer Verlag. Volume 123, Number 4 / April, 2006. pages 135-139

Wolfgang Spießl presented our CHI-Note

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People take mobile devices into their cars and the amount of information people have on those devices is huge – just consider the number of songs on an MP3-Player, the address database in a navigation system and eventually the mobile web. In our work we looked at ways to design and implement search interfaces that are usable while driving [1]. For the paper we compared a categorized search and a free search. The was another paper in the session looking at practice of GPS use by Leshed et al. which was really interesting and can inform future navigation or context-aware information systems [2]. One interesting finding is that you loose AND at the same time create opportunities for applications and practices. In the questions she hinted some interesting observations on driving in familiar vs. driving in unfamiliar environments using GPS units. Based on these ideas there may be an interesting student project to do…

The interest in Wolfgang’s talk and into automotive user interfaces in general was unexpected high. As you see on the picture there was quite a set of people talking pictures and videos during the presentation.

[1] Graf, S., Spiessl, W., Schmidt, A., Winter, A., and Rigoll, G. 2008. In-car interaction using search-based user interfaces. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 1685-1688. DOI= http://doi.acm.org/10.1145/1357054.1357317

[2] Leshed, G., Velden, T., Rieger, O., Kot, B., and Sengers, P. 2008. In-car gps navigation: engagement with and disengagement from the environment. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 1675-1684. DOI= http://doi.acm.org/10.1145/1357054.1357316

Dagmar Kern presented two WIP at CHI

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Dagmar presented two work in progress papers at the poster session at CHI. One paper is a master thesis of Hema [1] and assess how we can personalize environments with coding preference into the Bluetooth friendly name. Here we were particularly interested into the acceptance in Germany and India. The second paper [2] was joint work with Nigel’s group from Lancaster. Here we look at targeted poster advertising and how preference information should be stored.

[1] Mahato, H., Kern, D., Holleis, P., and Schmidt, A. 2008. Implicit personalization of public environments using bluetooth. In CHI ’08 Extended Abstracts on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 3093-3098. DOI= http://doi.acm.org/10.1145/1358628.1358813

[2] Kern, D., Harding, M., Storz, O., Davis, N., and Schmidt, A. 2008. Shaping how advertisers see me: user views on implicit and explicit profile capture. In CHI ’08 Extended Abstracts on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 3363-3368. DOI= http://doi.acm.org/10.1145/1358628.1358858

Session on Tactile UIs

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Tampere University presented a study where a rotation element is used to create tactile output and the assessed emotional perception of the stimuli (http://mobilehaptics.cs.uta.fi [1]). One application scenario is to use haptics feedback to create applications that allow us to “be in touch”. From Steven Brewsters group a project was presented that looks into how the performance of a touchscreen keyboard can be enhanced by tactile feedback [2]. In one condition they use two actuators. Both papers are interesting and provide insight for two of our current projects on multi-tactile output.

[1] Salminen, K., Surakka, V., Lylykangas, J., Raisamo, J., Saarinen, R., Raisamo, R., Rantala, J., and Evreinov, G. 2008. Emotional and behavioral responses to haptic stimulation. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 1555-1562. DOI= http://doi.acm.org/10.1145/1357054.1357298

[2] Hoggan, E., Brewster, S. A., and Johnston, J. 2008. Investigating the effectiveness of tactile feedback for mobile touchscreens. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 1573-1582. DOI= http://doi.acm.org/10.1145/1357054.1357300

FacetZoom

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Raimund Dachselt presented FaceZoom, a widget for quick navigation, e.g. for a tree structure [1]. I liked his characterizing “a stacked treemap” – which explains nicely what the widget does and where the efficency can be found. At TEI’08 he gave already a nice private demo on how this can be linked to mobile devices and how to use a off-the-shelf phone with an accelerometer as controller.

[1] Dachselt, R., Frisch, M., and Weiland, M. 2008. FacetZoom: a continuous multi-scale widget for navigating hierarchical metadata. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 1353-1356. DOI= http://doi.acm.org/10.1145/1357054.1357265

Automotive SIG meeting at CHI

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This morning was a meeting of people interested in automotive user interfaces. It was an informal session where everyone could contribute. We had an interesting discussion anchored in the 100-Car Naturalistic Driving Study. My main arguments in the discussion were (1) that we have to take more care of context (awareness and prediction) to make smart controls and (2) that multimodality is a key concept to improve UIs.

We continued the meeting over lunch with people from BMW, Bosch and General Motors. I think everyone agrees that interactive in-car applications and hence user interfaces are a central topic that gains momentum at the moment. We discussed the option for doing a symposium next year on the topic.

How to Convince Girls that Computer Science is Cool?

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The number of woman starting a computer science degree in German is very low and this has been recognized on many levels as we (as an economy) loose at lot of potential. This problem can be found in many other countries. Leah Buechley suggested in her paper the LilyPad Ardunio [1] this issues by getting girls in building interactive electronics – as part of self-created fashion items. The idea of targeting technologies, so that they become attractive to girls – especially already in school – seems a promising approach to change the perception of what computer science means.

They use a microcontroller that can be sewn onto fabric and which can be connected to sensors, controls and actuators. The girls used them in a creative way to make interactive fashion, which they considered cool. Her course offered to young people aged 10-15 attracted about 90% girls (as far as I remember) – which is really impressive. I would be interested if a similar approach would work in Germany as well. Perhaps this could be an interesting project?

[1] Buechley, L., Eisenberg, M., Catchen, J., and Crockett, A. 2008. The LilyPad Arduino: using computational textiles to investigate engagement, aesthetics, and diversity in computer science education. In Proceeding of the Twenty-Sixth Annual SIGCHI Conference on Human Factors in Computing Systems (Florence, Italy, April 05 – 10, 2008). CHI ’08. ACM, New York, NY, 423-432. DOI= http://doi.acm.org/10.1145/1357054.1357123

Talking about Pervasive Marketing

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Advertisement and markings using pervasive computing technologies is a topic a lot of people are talking about. Little publications are out currently but it seems everybody has something in the lab. I have talked to Bo Begole from PARC and we think of looking more into the topic bringing people (from research and industry) together to push this topic forward.

CHI Conference in Florence

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On Sunday afternoon I flew to Florence and we met up in the evening with former colleagues – CHI always feels like a school reunion 😉 and it is great to get first hand reports on what everyone is working currently. On the plane I met Peter Thomas (editor of Ubquitous Computing Journal) and we talked about the option of a special issue on automotive…

We have rented a house in the Tuscany Mountains together with Antonio’s group and collaborators from BMW research and T-Labs. Even though we have to commute into Florence everyday it is just great that we have our “own” house – and it is much cheaper (but we have to do our dishes).

The conference is massive – 2300 people. There is a lot of interesting work and hence it is not feasible to cover it in a few sentences. Nevertheless there are some random pointers:

In the keynote a reference to an old reading machine by Athanasius Kircher was mentioned.

Mouse Mischief – educational software – 30 mice connected to 1 PC – cool!

Reality based interaction – conceptual paper – arguing that things should behaves as in the real world – interesting concept bringing together many new UI ideas

Inflatable mouse – cool technology from Korea– interesting use cases – we could integrate this in some of our projects (not inflating the mouse but inflating other things)

Multiple Maps – Synthesizing many maps – could be interesting for new navigation functions

Rub the Stane – interactive surfaces – detection of scratching noises only using a microphone

Usability evaluation considered harmful – the every-year discussion on how to make CHI more interesting continues

It seems there is currently some work going on looking at technologies in religious practice. Over lunch we had developed interesting ideas towards remote access to multimedia information (e.g. services of ‘once’ local church) and sharing awareness. This domain is intriguing because churches often form tight communities and content is regularly produced and available. Perhaps we should follow up on this with a project…

Dairy study on mobile information needs – good base literature of what information people need/use when they are mobile

K-Sketch – cool sketching technique.

Crowdsourcing user studies – reminded me of my visit at http://humangrid.eu

Lean and Zoom – simple idea – you come close it gets bigger – nicely done

Work on our new lab space started – ideas for intelligent building material

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This week work on our new lab space started 🙂 With all the drilling and hammering leaving for CHI in Florence seemed like perfect timing. Our rooms are located in a listed historical building and hence planning is always a little bit more complicated but we are compensated by working in a really nice building.

As I was involved in the planning space for the lab we had the opportunity to integrate a space dedicated to large interactive surfaces where we can explore different options for interaction.

Seeing the process of planning and carrying out indoor building work ideas related to smart building materials inevitably spring to mind. Much work goes into communication between different people involved in the process and into establishing and communicating the current status (structure, power routing, ventilation shafts, insulation, etc.) of the building. When imagine that brick, fixture, panel, screw and cable used could provide information about its position and status we could create valuable applications. Obviously always based on the assumption that computing and communication gets cheaper… I think it could be an interesting student project to systematically assess what building material would most benefit from sensing (or self-awareness) and processing and what applications this would enable; and in a second step create and validate a prototype.

Humangrid – are humans easier to program than systems?

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In the afternoon I visited humangrid, a startup company in Dortmund. Their basic idea is to create a platform that offers opportunities for crowdsourcing – basically outsourcing small tasks that are easy to perform by humans to a large number of clickworkers. One example for such a scenario is tagging and classification of media. It is interesting that they aim to create a platform that offers real contracts and provides guaranties – which makes it in my eyes more ambitious than Amazon’s Mechanical Turk.

One interesting argument is that programming humans (as intelligent processors) to do a certain task that involves intelligence is easier and cheaper than creating software that does this completely automated. Obviously with software there is nearly zero-cost for performing the tasks – after the software is completed, however if the development costs are extremely high paying a small amount to the human processor for each task may still be cheaper. The idea is a bit like creating a prototype using wizard of oz – and not replacing the wizard in the final version.

In our discussion we developed some idea where pervasive computing and mobile technologies can link to the overall concept of the human grid and crowdsourcing creating opportunities for new services that are currently not possible. One of our students will start next month a master thesis on this idea – I am already curious if we get the idea working.

Tanja Döring joined our group

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Today Tanja Döring started with our group in Essen. She did her MSc at the University of Hamburg with Steffi Beckhaus and Horst Oberquelle. I met her first last year at TEI’07 in Baton Rouge, where she presented work on a table for art historians [1]. This year Tanja was a student volunteer at TEI’08 in Bonn.

[1] Döring, T. and Beckhaus, S. 2007. The card box at hand: exploring the potentials of a paper-based tangible interface for education and research in art history. In Proceedings of the 1st international Conference on Tangible and Embedded interaction (Baton Rouge, Louisiana, February 15 – 17, 2007). TEI ’07. ACM, New York, NY, 87-90. DOI= http://doi.acm.org/10.1145/1226969.1226986

Project management, Visit to sd&m

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Running successful (large scale) projects in computer science is a great challenge – very often projects are delayed and run over budget. As we aim to provide our students with all it takes to be successful in the job we have a mandatory course on project management for IT project in the BSc Systems Engineering curriculum.

This afternoon we visited sd&m (part of Capgemini) in Düsseldorf to talk about the course structure and content. We are delighted that Gebhard Ritter and Oliver Stoll, both having long term experience in managing large projects, teach the course this term again. Having been myself in some of the lectures last term I became again aware how much our students can benefit from such cooperation between university and industry.