@conference {HoubenHyPR2015, title = {Collaborative Affordances of Hybrid Patient Record Technologies in Medical Work}, booktitle = {CSCW {\textquoteright}15: Proceedings of the 2015 ACM conference on Computer supported cooperative work}, year = {In Press}, publisher = {ACM}, organization = {ACM}, author = {Houben, Steven and Mads,Frost and Bardram, Jakob E} } @article {seiter2014rehabilitation, title = {Daily Life Activity Routine Discovery in Hemiparetic Rehabilitation Patients Using Topic Models}, journal = {Methods of Information in Medicine}, year = {In Press}, issn = {1574-1192}, author = {Julia Seiter and Adrian Derungs and Corina Schuster-Amft and Oliver Amft and Gerhard Tr{\"o}ster} } @article {jalalinya2015WPAinpress, title = {An Egocentric Approach towards the Design of Wearable Personal Assistants for Surgeons}, journal = {IEEE Pervasive Computing Magazine}, year = {In Press}, author = {Jalaliniya, Shahram and Pederson, Thomas} } @conference {seiter2015joint, title = {Joint Segmentation and Activity Discovery using Semantic and Temporal Priors}, booktitle = {Pervasive Computing and Communications (PerCom), 2015 IEEE International Conference on}, year = {In Press}, publisher = {IEEE}, organization = {IEEE}, author = {Seiter, Julia and Chiu, Wei-Chen and Fritz, Mario and Amft, Oliver and Tr{\"o}ster, Gerhard} } @conference {houbenwatchconnect, title = {WatchConnect: A Toolkit for Prototyping Smartwatch-Centric Cross-Device Applications}, booktitle = {CHI Conference on Human Factors in Computing Systems, CHI {\textquoteright}15}, year = {In Press}, publisher = {ACM}, organization = {ACM}, author = {Houben, Steven and Marquardt, Nicolai} } @conference {Weichel:2015:SST:2677199.2680576, title = {SPATA: Spatio-Tangible Tools for Fabrication-Aware Design}, booktitle = {Proceedings of the Ninth International Conference on Tangible, Embedded, and Embodied Interaction}, series = {TEI {\textquoteright}15}, year = {2015}, pages = {189--196}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {digital fabrication, fabrication-aware design, tangible user interfaces}, isbn = {978-1-4503-3305-4}, doi = {10.1145/2677199.2680576}, url = {http://doi.acm.org/10.1145/2677199.2680576}, author = {Weichel, Christian and Alexander, Jason and Karnik, Abhijit and Gellersen, Hans} } @article {7003987, title = {Transfer Learning in Body Sensor Networks Using Ensembles of Randomized Trees}, journal = {Internet of Things Journal, IEEE}, volume = {2}, number = {1}, year = {2015}, month = {Feb}, pages = {33-40}, issn = {2327-4662}, doi = {10.1109/JIOT.2015.2389335}, author = {Casale, P. and Altini, M. and Amft, O.} } @conference {seiterpervasivehealth, title = {Activity Routine Discovery in Stroke Rehabilitation Patients Without Data Annotation}, booktitle = {Proceedings of the 8th International Conference on Pervasive Computing Technologies for Healthcare}, series = {PervasiveHealth {\textquoteright}14}, year = {2014}, pages = {270{\textendash}273}, publisher = {ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)}, organization = {ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)}, address = {ICST, Brussels, Belgium, Belgium}, keywords = {Daily routines, stroke patients, topic model, unsupervised}, isbn = {978-1-63190-011-2}, doi = {10.4108/icst.pervasivehealth.2014.255275}, url = {http://dx.doi.org/10.4108/icst.pervasivehealth.2014.255275}, author = {Seiter, Julia and Derungs, Adrian and Schuster-Amft, Corina and Amft, Oliver and Tr{\"o}ster, Gerhard} } @conference {houbenactivityspace, title = {ActivitySpace: Managing Device Ecologies in an Activity-Centric Configuration Space}, booktitle = {Proceedings of the 2014 ACM International Conference on Interactive Tabletops and Surfaces (ITS{\textquoteright}14)}, year = {2014}, publisher = {ACM}, organization = {ACM}, author = {Houben, Steven and Tell, Paolo and Bardram, Jakob E} } @conference {gil2014ambulatory, title = {Ambulatory Estimation of Human Circadian Phase using Models of Varying Complexity Based On Mon-invasive Signal Modalities}, booktitle = {Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE}, year = {2014}, pages = {2278{\textendash}2281}, publisher = {IEEE}, organization = {IEEE}, author = {Gil, Enrique A and Aubert, Xavier L and Beersma, Domien GM} } @article {Casale2014854, title = {Approximate Polytope Ensemble for One-class Classification}, journal = {Pattern Recognition}, volume = {47}, number = {2}, year = {2014}, pages = {854 - 864}, issn = {0031-3203}, doi = {http://dx.doi.org/10.1016/j.patcog.2013.08.007}, url = {http://www.sciencedirect.com/science/article/pii/S0031320313003282}, author = {Pierluigi Casale and Oriol Pujol and Petia Radeva} } @conference {houbenHyprCscw, title = {Collaborative Affordances of Hybrid Patient Record Technologies in Medical Work}, booktitle = {Proceedings of the 2015 ACM conference on Computer Supported Cooperative Work. (CSCW{\textquoteright}15)}, year = {2014}, publisher = {ACM}, organization = {ACM}, author = {Houben, Steven and Frost, Mads and Bardram, Jakob E} } @article {seiter2014discovery, title = {Discovery of activity composites using topic models: An analysis of unsupervised methods}, journal = {Pervasive and Mobile Computing}, volume = {15}, year = {2014}, note = {Special Issue on Data Mining in Pervasive Environments}, pages = {215 - 227}, abstract = {Abstract In this work we investigate unsupervised activity discovery approaches using three topic model~(TM) approaches, based on Latent Dirichlet Allocation~(LDA), n -gram TM~(NTM), and correlated TM~(CTM). While \{LDA\} structures activity primitives, \{NTM\} adds primitive sequence information, and \{CTM\} exploits co-occurring topics. We use an activity composite/primitive abstraction and analyze three public datasets with different properties that affect the discovery, including primitive rate, activity composite specificity, primitive sequence similarity, and composite-instance ratio. We compare the activity composite discovery performance among the \{TM\} approaches and against a baseline using k -means clustering. We provide guidelines for method and optimal \{TM\} parameter selection, depending on data properties and activity primitive noise. Results indicate that \{TMs\} can outperform k -means clustering up to 17\%, when composite specificity is low. LDA-based \{TMs\} showed higher robustness against noise compared to other \{TMs\} and k -means.}, keywords = {Activity routines}, issn = {1574-1192}, doi = {http://dx.doi.org/10.1016/j.pmcj.2014.05.007}, url = {http://www.sciencedirect.com/science/article/pii/S1574119214000832}, author = {Julia Seiter and Oliver Amft and Mirco Rossi and Gerhard Tr{\"o}ster} } @conference {Zhang:2014:GEP:2632048.2636071, title = {GazeHorizon: Enabling Passers-by to Interact with Public Displays by Gaze}, booktitle = {Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing}, series = {UbiComp {\textquoteright}14}, year = {2014}, pages = {559--563}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {eye tracking, field study, gaze interface, public display, spontaneous interaction, walk-up-and-use}, isbn = {978-1-4503-2968-2}, doi = {10.1145/2632048.2636071}, url = {http://doi.acm.org/10.1145/2632048.2636071}, author = {Zhang, Yanxia and M{\"u}ller, J{\"o}rg and Chong, Ming Ki and Bulling, Andreas and Gellersen, Hans} } @conference {Jalaliniya:2014:HEM:2663284.2665377, title = {Head and Eye Movement As Pointing Modalities for Eyewear Computers}, booktitle = {Proceedings of the 2014 11th International Conference on Wearable and Implantable Body Sensor Networks Workshops}, series = {BSNWORKSHOPS {\textquoteright}14}, year = {2014}, pages = {50{\textendash}53}, publisher = {IEEE Computer Society}, organization = {IEEE Computer Society}, address = {Washington, DC, USA}, keywords = {Eye pointing, Gaze tracking, Head pointing, Head tracking, Head-mounted display, wearable computing}, isbn = {978-1-4799-6136-8}, doi = {10.1109/BSN.Workshops.2014.14}, url = {http://dx.doi.org/10.1109/BSN.Workshops.2014.14}, author = {Jalaliniya, Shahram and Mardanbeigi, Diako and Pederson, Thomas and Hansen, Dan Witzner} } @conference {Chen2014, title = {Hidden Conditional Random Fields for Action Recognition}, booktitle = {{VISAPP} 2014 - Proceedings of the 9th International Conference on Computer Vision Theory and Applications, Volume 2, Lisbon, Portugal, 5-8 January, 2014}, year = {2014}, pages = {240{\textendash}247}, author = {L. Chen and N.P. van der Aa and R.T. Tan and R.C. Veltkamp}, editor = {S. Battiato and J. Braz} } @conference {houbenhypr, title = {HyPR Device: Mobile Support for Hybrid Patient Records}, booktitle = {Proceedings of the 2014 ACM International Conference on Interactive Tabletops and Surfaces (ITS{\textquoteright}14)}, year = {2014}, publisher = {ACM}, organization = {ACM}, author = {Houben, Steven and Frost, Mads and Bardram, Jakob E} } @conference {jeuris2014laevo, title = {Laevo: a Temporal Desktop Interface for Integrated Knowledge Work}, booktitle = {Proceedings of the 27th annual ACM symposium on User interface software and technology}, year = {2014}, pages = {679{\textendash}688}, publisher = {ACM}, organization = {ACM}, author = {Jeuris, Steven and Houben, Steven and Bardram, Jakob} } @conference {Smith:2014:LRD:2628363.2628404, title = {Learning to Recognise Disruptive Smartphone Notifications}, booktitle = {Proceedings of the 16th International Conference on Human-computer Interaction with Mobile Devices \&\#38; Services}, series = {MobileHCI {\textquoteright}14}, year = {2014}, pages = {121{\textendash}124}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {experience sampling, interruptions, machine learning, smartphone}, isbn = {978-1-4503-3004-6}, doi = {10.1145/2628363.2628404}, url = {http://doi.acm.org/10.1145/2628363.2628404}, author = {Smith, Jeremiah and Lavygina, Anna and Ma, Jiefei and Russo, Alessandra and Dulay, Naranker} } @conference {buethe14, title = {A Mechanically Flexible Tilt Switch On Kapton Foil With Microspheres As A Pendulum}, booktitle = {Sensors and Measuring Systems 2014; 17. ITG/GMA Symposium; Proceedings of}, year = {2014}, month = {June}, pages = {1-4}, abstract = {Novel flexible electronic devices enable the design of new applications such as smart textiles and wearable electronics. Sensing the orientation with respect to gravity is one of the key functionalities of numerous envisioned wearable devices. In this paper, we present an innovative design of a tilt switch which is fabricated on a flexible Kapton(r) foil allowing the sensor to be bent down to a radius of 5 cm while staying functional. The sensor design is based on a cavity filled with microspheres made conductive by nickel/gold sputtering. The flexible tilt switch has a make angle of 5deg and a break angle of 30deg.}, author = {B{\"u}the, Lars and Vogt, Christian and Petti, Luisa and M{\"u}nzenrieder, Niko and Zysset, Christoph and Salvatore, Giovanni A. and Tr{\"o}ster, Gerhard} } @conference {Weichel:2014:MME:2556288.2557090, title = {MixFab: A Mixed-reality Environment for Personal Fabrication}, booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems}, series = {CHI {\textquoteright}14}, year = {2014}, pages = {3855{\textendash}3864}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {3D modeling, 3d printing, direct manipulation, mixed-reality, personal fabrication}, isbn = {978-1-4503-2473-1}, doi = {10.1145/2556288.2557090}, url = {http://doi.acm.org/10.1145/2556288.2557090}, author = {Weichel, Christian and Lau, Manfred and Kim, David and Villar, Nicolas and Gellersen, Hans W.} } @conference {Derungs2014-P_ACOMORE, title = {Motion-adaptive Duty-cycling to Estimate Orientation using Inertial Sensors}, booktitle = {ACOMORE 2014: IEEE International Conference on Pervasive Computing and Communications Workshops}, series = {PerCom Workshops}, year = {2014}, note = {1st Symposium on Activity and Context Modeling and Recognition}, pages = {47{\textendash}54}, publisher = {IEEE}, organization = {IEEE}, abstract = {

We present a motion-adaptive duty-cycling approach to estimate orientation using inertial sensors. In particular, we deploy a proportional forward-controller to adjust the duty-cycle of inertial sensing units\ (IMU) and the orientation estimation update rate of an extended Kalman filter\ (EKF). In sample data recordings and a simulated daily life dataset from a wrist-worn IMU, we show that our motion-adaptive approach incurs substantially lower errors that a static duty-cycling approach. During phases with low or no rotation motion, as it is often occurring in daily activities, our approach can dynamically reduce the IMU operation to 20\% of the regular rate. Results show that duty-cycles of 50\% are common during low-wrist rotation activities, such as reading and typing, while orientation error is below 1$\degree$. We further show the power saving benefits of our approach in a case study of the ETHOS IMU device.

}, doi = {10.1109/PerComW.2014.6815163}, author = {Adrian Derungs and Han Lin and Holger Harms and Oliver Amft} } @conference {Kakra2004, title = {A Multimodal Benchmark Tool for Automated Eating Behaviour Recognition}, booktitle = {Proceedings of Measuring Behavior 2014, Wageningen, The Netherlands, August 27-29, 2014}, year = {2014}, author = {V.D. Kakra and N.P. van der Aa and L.P.J.J. Noldus and O. Amft}, editor = {A.J. Spink and L.W.S. Loijens and M. Woloszynowska-Fraser and L.P.J.J. Noldus} } @article {cuba2014novel, title = {A Novel Wearable Vest for Tracking Pulmonary Congestion in Acutely Decompensated Heart Failure}, journal = {International journal of cardiology}, volume = {177}, number = {1}, year = {2014}, pages = {199}, author = {Cuba-Gyllensten, Illapha and Gastelurrutia, Paloma and Riistama, Jarno and Aarts, Ronald and Nu{\~n}ez, Julio and Lupon, Josep and Bayes-Genis, Antoni} } @conference {Zhang:2014:PCM:2598153.2598186, title = {Pupil-canthi-ratio: A Calibration-free Method for Tracking Horizontal Gaze Direction}, booktitle = {Proceedings of the 2014 International Working Conference on Advanced Visual Interfaces}, series = {AVI {\textquoteright}14}, year = {2014}, pages = {129--132}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {calibration-free, eye tracking, Gaussian regression, gaze-based interaction, pervasive displays, vision-based}, isbn = {978-1-4503-2775-6}, doi = {10.1145/2598153.2598186}, url = {http://doi.acm.org/10.1145/2598153.2598186}, author = {Zhang, Yanxia and Bulling, Andreas and Gellersen, Hans} } @conference {buethe14a, title = {RFID-die: Battery-free Orientation Sensing Using an Array of Passive Tilt Switches}, booktitle = {Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct Publication}, series = {UbiComp {\textquoteright}14 Adjunct}, year = {2014}, pages = {215{\textendash}218}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {activity recognition, battery-free, die, orientation sensing, RFID, tilt switch, wireless}, isbn = {978-1-4503-3047-3}, doi = {10.1145/2638728.2638733}, url = {http://doi.acm.org/10.1145/2638728.2638733}, author = {B{\"u}the, Lars and Hardegger, Michael and Br{\"u}lisauer, Patrick and Tr{\"o}ster, Gerhard} } @conference {6815160, title = {RingLearn: Long-term Mitigation of Disruptive Smartphone Interruptions}, booktitle = {Pervasive Computing and Communications Workshops (PERCOM Workshops), 2014 IEEE International Conference on}, year = {2014}, month = {March}, pages = {27-35}, keywords = {Android phones, Calendars, concept drift, Context, Context modeling, Delays, disruptive phone calls mitigation, disruptive smartphone interruptions, HCI, human computer interaction, interruptions, lazy learning, learning (artificial intelligence), long-term mitigation, machine-learning approach, mitigation quality, mobile computing, online learning, RingLearn, sensors, smart phones, smartphone, smartphone designers, user behaviour}, doi = {10.1109/PerComW.2014.6815160}, author = {Smith, J. and Dulay, N.} } @conference {6855614, title = {Transfer Learning in Body Sensor Networks Using Ensembles of Randomised Trees}, booktitle = {2014 11th International Conference on Wearable and Implantable Body Sensor Networks (BSN)}, year = {2014}, month = {June}, pages = {39-44}, doi = {10.1109/BSN.2014.27}, author = {Casale, P. and Altini, M. and Amft, O.} } @conference {Jalaliniya:2014:WLP:2641248.2641354, title = {Wearable Laser Pointer Versus Head-mounted Display for Tele-guidance Applications?}, booktitle = {Proceedings of the 2014 ACM International Symposium on Wearable Computers: Adjunct Program}, series = {ISWC {\textquoteright}14 Adjunct}, year = {2014}, pages = {193{\textendash}200}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {Head-mounted display, laser pointer, remote collaboration, tele-pointing, tele-presence, wearable computers}, isbn = {978-1-4503-3048-0}, doi = {10.1145/2641248.2641354}, url = {http://doi.acm.org/10.1145/2641248.2641354}, author = {Jalaliniya, Shahram and Pederson, Thomas and Houben, Steven} } @conference {Smith:2014:DYS:2638728.2641701, title = {When Did Your Smartphone Bother You Last?}, booktitle = {Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct Publication}, series = {UbiComp {\textquoteright}14 Adjunct}, year = {2014}, pages = {409{\textendash}414}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {interruptions, learning, notifications, smartphones}, isbn = {978-1-4503-3047-3}, doi = {10.1145/2638728.2641701}, url = {http://doi.acm.org/10.1145/2638728.2641701}, author = {Smith, Jeremiah and Russo, Alessandra and Lavygina, Anna and Dulay, Naranker} } @inbook {196, title = {1st Workshop on Human Factors and Activity Recognition in Healthcare, Wellness and Assisted Living (Recognise2Interact)}, booktitle = {UbiComp{\textquoteright}13 ACM International Joint Conference on Pervasive and Ubiquitous Computing}, year = {2013}, publisher = {Association for Computing Machinery}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-2139-6/13/09}, author = {Pierluigi Casale and Steven Houben and Oliver Amft} } @conference {seiter2013activity, title = {Activity Monitoring in Daily Life as an Outcome Measure for Surgical Pain Relief Intervention Using Smartphones}, booktitle = {Proceedings of the 2013 International Symposium on Wearable Computers}, year = {2013}, pages = {127{\textendash}128}, publisher = {ACM}, organization = {ACM}, author = {Seiter, Julia and Macrea, Lucian and Feese, Sebastian and Amft, Oliver and Arnrich, Bert and Maurer, Konrad and Tr{\"o}ster, Gerhard} } @article {HoubenCam2013, title = {Activity-Centric Support for Ad Hoc Knowledge Work {\textendash} A Case Study of co-Activity Manager}, journal = {CHI {\textquoteright}13 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems}, year = {2013}, pages = {2263{\textendash}2272}, publisher = {ACM}, author = {Steven Houben and Bardram, {Jakob Eyvind} and Jo Vermeulen and Kris Luyten and Karin Coninx} } @article {HoubenActivityDesk2013, title = {ActivityDesk: Multi-device Configuration Work using an Interactive Desk}, journal = {CHI {\textquoteright}13 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems}, year = {2013}, pages = {721{\textendash}726}, publisher = {ACM}, author = {Steven Houben and Bardram, {Jakob Eyvind}} } @article {192, title = {Case-load Simulation using Home Telemonitoring Data of Heart Failure Patients to Assess the Impact of New Sensor Technologies and Alerting Algorithms on the Decision Making of Healthcare Professionals}, journal = {International Journal of Integrated Care}, year = {2013}, pages = {7}, author = {Cuba-Gyllensten, I and Goode, K.M. and Bonomi, A.G. and Caffarel, J. and Amft, O} } @article {198, title = {Circadian Phase Estimation of Healthy Subjects and Sleep-onset Insomnia Patients using Heart Rate Derived Features}, journal = {XIII Congress of the European Biological Rhythms Society Conference Book}, year = {2013}, pages = {155}, author = {Gil, Enrique A and Aubert, Xavier L and M{\o}st, Els IS and Penzel, T. and Beersma, Domien GM} } @conference {204, title = {COPDTrainer: A Smartphone-based Motion Rehabilitation Training System with Real-Time Acoustic Feedback}, booktitle = {Ubicomp 2013: Proceedings of the 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing}, year = {2013}, publisher = {ACM}, organization = {ACM}, abstract = {

Patient motion training requires adaptive, personalized exercise models and systems that are easy to handle. In this paper, we evaluate a training system based on a smartphone that integrates in clinical routines and serves as a tool for therapist and patient. Only the smartphone?s build-in inertial sensors were used to monitor exercise execution and providing acoustic feedback on exercise performance and exercise errors. We used a sinusoidal motion model to exploit the typical repetitive structure of motion exercises. A Teach-mode was used to personalize the system by training under the guidance of a therapist and deriving exercise model parameters. Subsequently, in a Train-mode, the system provides exercise feedback. We validate our approach in a validation with healthy volunteers and in an intervention study with COPD patients. System performance, trainee performance, and feedback efficacy were analysed. We further compare the therapist and training system performances and demonstrate that our approach is viable.

}, doi = {10.1145/2493432.2493454}, author = {Gabriele Spina and Guannan Huang and Anouk W. Vaes and Martijn A. Spruit and Oliver Amft} } @conference {203, title = {CRNTC+: A Smartphone-based Sensor Processing Framework for Prototyping Personal Healthcare Applications}, booktitle = {PH 2013: Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare}, year = {2013}, publisher = {IEEE}, organization = {IEEE}, abstract = {

While smartphone apps for health monitoring and patient support are of great interest to care providers and patients alike, suitable development and evaluation frameworks are currently lacking. We present and evaluate an Android open-source smartphone framework CRNTC+ for sensors data acquisition, signal processing, pattern analysis, interaction and feedback, based on the Context Recognition Network Toolbox\ (CRNT). CRNTC+ extends the original CRNT by providing components to read smartphone and external sensor data, supporting annotations, and various output components. Here, we formally evaluate CRNTC+ regarding extensibility, scalability, and energy consumption. We present study results where CRNTC+ was deployed in an application to detect epileptic seizures. Results showed that CRNTC+ is well-suited for prototyping health applications in real-life, where online sensor data recording and recognition is needed.

}, author = {Gabriele Spina and Frank Roberts and Jens Weppner and Paul Lukowicz and Oliver Amft} } @inbook {190, title = {Curiosity Objects: Using Curiosity to Overcome Interaction Blindness}, booktitle = {CHI EA {\textquoteright}13 CHI {\textquoteright}13 Extended Abstracts on Human Factors in Computing Systems}, year = {2013}, pages = {1539-1549}, publisher = {Association for Computing Machinery}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-1952-2}, author = {Steven Houben and Christian Weichel} } @conference {Weichel:2013:ECI:2460625.2460659, title = {Enclosed: a Component-centric Interface for Designing Prototype Enclosures}, booktitle = {Proceedings of the 7th International Conference on Tangible, Embedded and Embodied Interaction}, series = {TEI {\textquoteright}13}, year = {2013}, pages = {215{\textendash}218}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {3D modeling, personal fabrication, rapid prototyping, user interfaces, user-generated design}, isbn = {978-1-4503-1898-3}, doi = {10.1145/2460625.2460659}, url = {http://doi.acm.org/10.1145/2460625.2460659}, author = {Weichel, Christian and Lau, Manfred and Gellersen, Hans} } @conference {seiter2013evaluating, title = {Evaluating Daily Life Activity Using Smartphones as Novel Outcome Measure for Surgical Pain Therapy}, booktitle = {Proceedings of the 8th International Conference on Body Area Networks}, year = {2013}, pages = {153{\textendash}156}, publisher = {ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)}, organization = {ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)}, author = {Seiter, Julia and Macrea, Lucian and Amft, Oliver and Feese, Sebastian and Arnrich, Bert and Maurer, Konrad and Tr{\"o}ster, Gerhard} } @conference {DBLP:conf/percom/SmithDTAZ13, title = {Exploring Concept Drift using Interactive Simulations}, booktitle = {PerCom Workshops}, year = {2013}, pages = {49-54}, author = {Jeremiah Smith and Naranker Dulay and M{\'a}t{\'e} Attila T{\'o}th and Oliver Amft and Yanxia Zhang} } @conference {Bulling:2013:ERH:2470654.2470697, title = {EyeContext: Recognition of High-level Contextual Cues from Human Visual Behaviour}, booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems}, series = {CHI {\textquoteright}13}, year = {2013}, pages = {305{\textendash}308}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {context recognition, electrooculography (eog), eye movement analysis, visual behaviour}, isbn = {978-1-4503-1899-0}, doi = {10.1145/2470654.2470697}, url = {http://doi.acm.org/10.1145/2470654.2470697}, author = {Bulling, Andreas and Weichel, Christian and Gellersen, Hans} } @article {gil2013human, title = {Human Circadian Phase Estimation from Signals Collected in Ambulatory Conditions Using an Autoregressive Model}, journal = {Journal of biological rhythms}, volume = {28}, number = {2}, year = {2013}, pages = {152{\textendash}163}, publisher = {SAGE Publications}, author = {Gil, Enrique A and Aubert, Xavier L and M{\o}st, Els IS and Beersma, Domien GM} } @article {199, title = {Human Tracking and Identification using a Sensitive Floor and Wearable Accelerometers}, journal = {2013 IEEE International Conference on Pervasive Computing and Communications (PerCom)}, year = {2013}, pages = {166-171}, isbn = {978-1-4673-4573-6}, doi = {http://doi.ieeecomputersociety.org/10.1109/PerCom.2013.6526728}, author = {Miguel Sousa and Axel Techmer and Axel Steinhage and Christl Lauterbach and Paul Lukowicz} } @conference {Casale2013-P_AMI, title = {Inferring Model Structures from Inertial Sensor Data in Distributed Activity Recognition Scenarios}, booktitle = {AMI 2013: Proceedings of the Joint Conference on Ambient Intelligence}, year = {2013}, pages = {62{\textendash}77}, publisher = {Springer}, organization = {Springer}, abstract = {

Activity-Events-Detectors digraphs describe the relations between human activities and sensor nodes under a distributed perspective. The graphs provide a conceptual abstraction that decouples the set of activities from the sensor network with the aim of improving the recognition performances and lowering the computational constraints of the detection tasks in the sensor node. In this work, a data-driven methodology that learns groups of activities and infers the con?guration of detectors embedded in the sensors nodes of the network is proposed. The methodology, de?ned on a clustering procedure, derives and infers all the relevant information from sensors data, making no a-priori assumptions on the relations between sensor nodes and activities. Using the inferred structured models, a performance boost of 15\% in the ?nal classi?cation accuracy is obtained with a signi?cant reduction of the computational resources needed for recognition purposes.

}, keywords = {clustering, context recognition, inertial sensors, wireless sensor networks}, author = {Pierluigi Casale and Oliver Amft} } @article {6562724, title = {Ingredients for a New Wave of Ubicomp Products}, journal = {Pervasive Computing, IEEE}, volume = {12}, number = {3}, year = {2013}, pages = {5-8}, abstract = {The emergence of many new embedded computing platforms has lowered the hurdle for creating ubiquitous computing devices. Here, the authors highlight some of the newer platforms, communication technologies, sensors, actuators, and cloud-based development tools, which are creating new opportunities for ubiquitous computing.}, keywords = {actuator, actuators, cloud computing, cloud-based development tool, communication technology, embedded computing platform, embedded computing platforms, Embedded systems, integrated development environments, pervasive computing, Programming, prototyping, sensor, sensors, Technological innovation, ubicomp product, ubiquitous computing, ubiquitous computing device}, issn = {1536-1268}, doi = {10.1109/MPRV.2013.51}, author = {Kubitza, T. and Pohl, N. and Dingler, T. and Schneegass, S. and Weichel, C. and Schmidt, A.} } @conference {gils2013mental, title = {Mental State Assessment with Wearable EEG Devices during Daily Life: a Survey}, booktitle = {5th Panhellenic Conference on Biomedical Technology, Athens, 4-6 April 2013}, year = {2013}, author = {Evangelia Balanou and Mark van Gils} } @inbook {197, title = {NooSphere: An Activity-Centric Infrastructure for Distributed Interaction}, booktitle = {MUM {\textquoteright}13 Proceedings of 12th International Conference on Mobile and Ubiquitous Multimedia}, year = {2013}, publisher = {Association for Computing Machinery}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-2648-3/13/12}, doi = {http://dx.doi.org/10.1145/2541831.2541856}, author = {Steven Houben and S{\~A}{\c\ }ren Nielsen and Morten Esbensen and Bardram, {Jakob Eyvind}} } @conference {Houben:2013:Curiosity, title = {Overcoming Interaction Blindness through Curiosity Objects}, booktitle = {Proceedings of the 2013 ACM annual conference extended abstracts on Human Factors in Computing Systems Extended Abstracts}, series = {CHI EA {\textquoteright}13}, year = {2013}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {curiosity object, interaction blindness}, author = {Houben, Steven and Weichel, Christian} } @conference {201, title = {Personalizing Energy Expenditure Estimation Using a Cardiorespiratory Fitness Predicate}, booktitle = {PH 2013: Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare}, year = {2013}, publisher = {IEEE}, organization = {IEEE}, abstract = {

Accurate Energy Expenditure (EE) estimation is key in understanding how behavior and daily physical activity (PA) patterns affect health, especially in today\&$\#$39;s sedentary society. Wearable accelerometers (ACC) and heart rate (HR) sensors have been widely used to monitor physical activity and estimate EE. However, current EE estimation algorithms have not taken into account a person\&$\#$39;s cardiorespiratory fitness (CRF), even though CRF is the main cause of inter-individual variation in HR during exercise. In this paper we propose a new algorithm, which is able to significantly reduce EE estimate error and inter-individual variability, by automatically modeling CRF, without requiring users to perform specific fitness tests. Results show a decrease in Root Mean Square Error (RMSE) between 28 and 33\% for walking, running and biking activities, compared to state of the art activity-specific EE algorithms combining ACC and HR.

}, author = {Marco Altini and Julien Penders and Oliver Amft} } @article {cuba2013removing, title = {Removing Respiratory Artefacts from Transthoracic Bioimpedance Spectroscopy Measurements}, journal = {Journal of Physics: Conference Series}, volume = {434}, number = {1}, year = {2013}, pages = {012018}, publisher = {IOP Publishing}, author = {Cuba-Gyllensten, I and Abtahi, F and Bonomi, AG and Lindecrantz, K and Seoane, F and Amft, O} } @conference {Rossi13, title = {RoomSense: An Indoor Positioning System for Smartphones using Active Sound Probing}, booktitle = {Proceedings of the 4th Augmented Human International Conference}, year = {2013}, keywords = {SoundProject}, author = {Rossi, Mirco and Seiter, Julia and Amft, Oliver and Buchmeier, Seraina and Tr{\"o}ster, Gerhard} } @inbook {189, title = {SideWays: a Gaze Interface for Spontaneous Interaction with Situated Displays}, booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI {\textquoteright}13)}, year = {2013}, pages = {851-860}, publisher = {ACM}, organization = {ACM}, author = {Yanxia Zhang and Andreas Bulling and Hans Gellersen} } @article {200, title = {Smart Textiles: From Niche to Mainstream}, journal = {IEEE Pervasive Computing}, volume = {12}, year = {2013}, month = {July-Sept}, pages = {81{\textendash}84}, abstract = {

Current technology supports only special-purpose, low-volume textiles, garments, and electronics. Moreover, the textile, electronic, and software industries have different product cycles, cultures, and price models, creating scores of practical problems for smart textiles. Mass producing smart cloth will require decoupling the textile production from concrete sensing apps and moving the complexity to generic electronics and software\–creating wearable sensing as an app.

}, doi = {10.1109/MPRV.2013.55}, author = {Jingyuan Cheng and Paul Lukowicz and Niels Henze and Albrecht Schmidt and Oliver Amft and Giovanni A. Salvatore and Gerhard Tr{\"o}ster} } @conference {gils2013state, title = {State-of-the-art of Wearable EEG for Personalised Health Applications}, booktitle = {pHealth 2013: Proceedings of the 10th International Conference on Wearable Micro and Nano Technologies for Personalized Health, Tallinn, June 2013}, year = {2013}, pages = {119-123}, author = {Evangelia Balanou and Mark van Gils and Toni Vanhala} } @booklet {193, title = {Temporal Model for Reflective Multitasking}, year = {2013}, author = {Steven Jeuris and Steven Houben} } @conference {jalaliniya13, title = {Touch-less Interaction with Medical Images Using Hand \& Foot Gestures}, booktitle = {Proceedings of the 2013 ACM Conference on Ubiquitous Computing}, series = {UbiComp {\textquoteright}13}, year = {2013}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {floor sensor, gesture-based interaction, touch-less interaction in hospital, wearable sensor}, isbn = {978-1-4503-1224-0}, author = {Jalaliniya, Shahram and Smith, Jeremiah and Sousa, Miguel and B{\c\ }the, Lars and Pederson, Thomas} } @conference {202, title = {Using RFID Tags as Reference for Phone Location and Orientation in Daily Life}, booktitle = {AH 2013: Proceedings of the 4th International Augmented Human Conference}, year = {2013}, publisher = {ACM}, organization = {ACM}, abstract = {

This paper investigates a novel approach to obtain location and orientation annotation for smartphones in real-life recordings. We attached RFID tags to places where phones are located in daily life, such as pockets and backpacks. The RFID reader integrated in modern smartphones was used to continuously scan for registered tags. In a first evaluation across several full-day recordings and using nine locations, our approach achieved an accuracy of 80\ \% when compared to a manual diary. Only 5.3\ \% of all tags were missed. We conclude that RFID-based location and orientation tagging is a viable option to obtain ground truth reference for real-life activity recognition algorithm developments.

}, keywords = {ground truth, NFC, unsupervised annotation}, doi = {10.1145/2459236.2459269}, author = {Florian Wahl and Oliver Amft} } @conference {Bulling:2012:IWP:2370216.2370362, title = {Workshop on Personal and Pervasive Fabrication (PerFab) at UbiComp 2012}, booktitle = {Proceedings of the 2013 ACM Conference on Ubiquitous Computing}, series = {UbiComp {\textquoteright}13}, year = {2013}, publisher = {ACM}, organization = {ACM}, author = {Lau, Manfred and Weichel, Christian and Villar, Nicolas} } @conference {Seiter2012, title = {Assessing Topic Models: How to Obtain Robustness?}, booktitle = {First Workshop on recent advances in behavior prediction and pro-active pervasive computing}, year = {2012}, author = {Seiter, Julia and Amft, Oliver and Tr{\"o}ster, Gerhard} } @conference {DBLP:conf/icmla/SmithDB12, title = {Balancing Public Cycle Sharing Schemes Using Independent Learners}, booktitle = {ICMLA (1)}, year = {2012}, pages = {168-173}, author = {Jeremiah Smith and Luke Dickens and Krysia Broda} } @inbook {HoubenCam2012, title = {Co-activity Manager: Integrating Activity-based Collaboration into the Desktop Interface}, booktitle = {Proceedings of the International Working Conference on Advanced Visual Interfaces}, series = {AVI {\textquoteright}12}, year = {2012}, pages = {398-401}, publisher = {Association for Computing Machinery}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-1287-5}, author = {Steven Houben and Jo Vermeulen and Kris Luyten and Karin Coninx} } @inbook {BardramRS-design2012, title = {The Design and Architecture of Reticularspaces: an Activity-based Computing Framework for Distributed and Collaborative Smartspaces}, booktitle = {EICS {\textquoteright}12.}, series = {EICS {\textquoteright}12}, year = {2012}, pages = {269-274}, publisher = {Association for Computing Machinery}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-1168-7}, author = {Jakob Bardram and Steven Houben and S{\o}ren Nielsen and Sofiane Gueddana} } @inbook {BardramRS2012, title = {ReticularSpaces: Activity-based Computing Support for Physically Distributed and Collaborative Smart Spaces}, booktitle = {CHI 12. Proceedings of the 2012 ACM annual conference on Human Factors in Computing Systems}, series = {CHI {\textquoteright}12}, year = {2012}, pages = {2845-2854}, publisher = {Association for Computing Machinery}, organization = {Association for Computing Machinery}, isbn = {978-1-4503-1015-4}, author = {Jakob Bardram and Sofiane Gueddana and Steven Houben and S{\o}ren Nielsen} } @inbook {HoubenSituatedModel2012, title = {A Situated Model and Architecture for Distributed Activity-Based Computing}, booktitle = {MODIQUITUS 12}, series = {MODIQUITOUS {\textquoteright}12}, year = {2012}, pages = {9-13}, author = {Steven Houben and Morten Esbensen and Jakob Bardram} } @article {abtahi2012software, title = {Software Tool for Analysis of Breathing-Related Errors in Transthoracic Electrical Bioimpedance Spectroscopy Measurements}, journal = {Journal of Physics: Conference Series}, volume = {407}, number = {1}, year = {2012}, pages = {012028}, publisher = {IOP Publishing}, author = {Abtahi, F and Cuba-Gyllensten, I and Lindecrantz, Kaj and Seoane, Fernando} } @article {cuba_poster_2012, title = {Telemonitoring Prediction Alarms for Detecting Upcoming Decompensations in Heart Failure Patients using Daily Weight and Trans-thoracic Impedance Measures}, journal = {European Journal of Heart Failure Supplements}, volume = {11}, number = {suppl 1}, year = {2012}, pages = {S149}, issn = {1567-4215, 1878-1314}, doi = {10.1093/eurjhf/hss013}, url = {http://eurjhfsupp.oxfordjournals.org.proxy1.athensams.net/content/11/suppl_1/S128}, author = {Cuba-Gyllensten, I} } @inbook {188, title = {Towards Pervasive Eye Tracking using Low-level Image Features}, booktitle = {Proceedings of the Symposium on Eye Tracking Research and Applications}, series = {ETRA {\textquoteright}12}, year = {2012}, pages = {261-264}, publisher = {ACM}, organization = {ACM}, isbn = {978-1-4503-1221-9}, author = {Yanxia Zhang and Andreas Bulling and Hans Gellersen} } @conference {Jalaliniya:2012:WKH:2399016.2399150, title = {A Wearable Kids{\textquoteright} Health Monitoring System on Smartphone}, booktitle = {Proceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design}, series = {NordiCHI {\textquoteright}12}, year = {2012}, pages = {791{\textendash}792}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {health monitoring system, mobile computing, pervasive healthcare, ubiquitous computing, wearable computing}, isbn = {978-1-4503-1482-4}, doi = {10.1145/2399016.2399150}, url = {http://doi.acm.org/10.1145/2399016.2399150}, author = {Jalaliniya, Shahram and Pederson, Thomas} } @inbook {187, title = {Discrimination of Gaze Directions using Low-level Eye Image Features}, booktitle = {Proceedings of the 1st international workshop on pervasive eye tracking 38; mobile eye-based interaction}, series = {PETMEI {\textquoteright}11}, year = {2011}, pages = {9-14}, publisher = {ACM}, organization = {ACM}, isbn = {978-1-4503-0930-1}, author = {Yanxia Zhang and Andreas Bulling and Hans Gellersen} } @article {kindberg2011mesh, title = {Mesh Mobs: Virtually Augmented Crowds}, number = {TR-2011-146}, year = {2011}, institution = {IT University of Copenhagen}, author = {Kindberg, Tim and Bardram, Jakob and B{\"u}ttrich, Sebastian and Esbensen, Morten and Houben, Steven and Khaled, Rilla and Pederson, Thomas and Perrone, Gian and Ramos, Juan David Hincapi{\'e} and Tabard, Aur{\'e}lien institution = IT University of Copenhagen} }