Geoffrey Werner Challen

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Research Output

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Conference contribution
2019

Grading-based test suite augmentation

Osei-Owusu, J., Astorga, A., Butler, L., Xie, T. & Challen, G., Nov 2019, Proceedings - 2019 34th IEEE/ACM International Conference on Automated Software Engineering, ASE 2019. Institute of Electrical and Electronics Engineers Inc., p. 226-229 4 p. 8952332. (Proceedings - 2019 34th IEEE/ACM International Conference on Automated Software Engineering, ASE 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Quantifying Process Variations and Its Impacts on Smartphones

Srinivasa, G. P., Haseley, S., Challen, G. & Hempstead, M., Apr 22 2019, Proceedings - 2019 IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2019. Institute of Electrical and Electronics Engineers Inc., p. 117-126 10 p. 8695655. (Proceedings - 2019 IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2018

QoE inference and improvement without end-host control

Nikravesh, A., Chen, Q. A., Haseley, S., Zhu, X., Challen, G. & Morley Mao, Z., Dec 6 2018, Proceedings - 2018 3rd ACM/IEEE Symposium on Edge Computing, SEC 2018. Institute of Electrical and Electronics Engineers Inc., p. 43-57 15 p. 8567656. (Proceedings - 2018 3rd ACM/IEEE Symposium on Edge Computing, SEC 2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2017

Separated by birth: Hidden differences between seemingly-identical smartphone CPUs

Srinivasa, G. P., Begum, R., Haseley, S., Hempstead, M. & Challen, G., Feb 21 2017, HotMobile 2017 - Proceedings of the 18th International Workshop on Mobile Computing Systems and Applications. Association for Computing Machinery, Inc, p. 103-108 6 p. 3032982. (HotMobile 2017 - Proceedings of the 18th International Workshop on Mobile Computing Systems and Applications).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2016

Algorithms for CPU and DRAM DVFS under inefficiency constraints

Begum, R., Hempstead, M., Srinivasa, G. P. & Challen, G., Nov 22 2016, Proceedings of the 34th IEEE International Conference on Computer Design, ICCD 2016. Institute of Electrical and Electronics Engineers Inc., p. 161-168 8 p. 7753276. (Proceedings of the 34th IEEE International Conference on Computer Design, ICCD 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A walk on the client side: Monitoring enterprise Wifi networks using smartphone channel scans

Shi, J., Meng, L., Striegel, A., Qiao, C., Koutsonikolas, D. & Challen, G., Jul 27 2016, IEEE INFOCOM 2016 - 35th Annual IEEE International Conference on Computer Communications. Institute of Electrical and Electronics Engineers Inc., 7524453. (Proceedings - IEEE INFOCOM; vol. 2016-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pocket data: The need for TPC-mobile

Kennedy, O., Ajay, J., Challen, G. & Ziarek, L., Jan 1 2016, Performance Evaluation and Benchmarking: Traditional to Big Data to Internet of Things - 7th TPC Technology Conference, TPCTC 2015, Revised Selected Papers. Nambiar, R. & Poess, M. (eds.). Springer-Verlag Berlin Heidelberg, p. 8-52 45 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 9508).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Poster: QoE-centric mobile operating system design

Haseley, S. & Challen, G., Jun 25 2016, MobiSys 2016 Companion - Companion Publication of the 14th Annual International Conference on Mobile Systems, Applications, and Services. Association for Computing Machinery, Inc, 1 p. (MobiSys 2016 Companion - Companion Publication of the 14th Annual International Conference on Mobile Systems, Applications, and Services).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wireless protocol validation under uncertainty

Shi, J., Lahiri, S. K., Chandra, R. & Challen, G., Jan 1 2016, Runtime Verification - 16th International Conference, RV 2016, Proceedings. Falcone, Y. & Sánchez, C. (eds.). Springer-Verlag, p. 351-367 17 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 10012 LNCS).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2015

A little sharing goes a long way: The case for reciprocal Wifi sharing

Shi, J., Gui, L., Koutsonikolas, D., Qiao, C. & Challen, G. W., Sep 11 2015, HotWireless 2015 - Proceedings of the 2nd International Workshop on Hot Topics in Wireless, co-located with MobiCom 2015. Association for Computing Machinery, Inc, p. 6-10 5 p. 2799652

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Controlling smartphone user privacy via objective-driven context mocking

DiRienzo, N. & Challen, G., Jan 28 2015, Proceedings of the 2014 6th International Conference on Mobile Computing, Applications and Services, MobiCASE 2014. Institute of Electrical and Electronics Engineers Inc., p. 216-224 9 p. 7026302. (Proceedings of the 2014 6th International Conference on Mobile Computing, Applications and Services, MobiCASE 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Energy-performance trade-offs on energy-constrained devices with multi-component DVFS

Begum, R., Werner, D., Hempstead, M., Prasad, G. & Challen, G., Oct 30 2015, Proceedings - 2015 IEEE International Symposium on Workload Characterization, IISWC 2015. Institute of Electrical and Electronics Engineers Inc., p. 34-43 10 p. 7314145. (Proceedings - 2015 IEEE International Symposium on Workload Characterization, IISWC 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jouler: A policy framework enabling effective and flexible smartphone energy management

Maiti, A., Chen, Y. & Challen, G., Jan 1 2015, Mobile Computing, Applications, and Services - 7th International Conference, MobiCASE 2015, Revised Selected Papers. Salim, F., Sigg, S. & Nurmi, P. (eds.). Springer-Verlag Berlin Heidelberg, p. 161-180 20 p. (Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST; vol. 162).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maybe we should enable more uncertain mobile app programming

Challen, G., Ajay, J. A., DiRienzo, N., Kennedy, O., Maiti, A., Nandugudi, A., Shantharam, S., Shi, J., Srinivasa, G. P. & Ziarek, L., Feb 12 2015, HotMobile 2015 - 16th International Workshop on Mobile Computing Systems and Applications. Association for Computing Machinery, Inc, p. 105-110 6 p. (HotMobile 2015 - 16th International Workshop on Mobile Computing Systems and Applications).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robust, cost-effective and scalable localization in large indoor areas

Guan, T., Dong, W., Koutsonikolas, D., Challen, G. & Qiao, C., Jan 1 2015, 2015 IEEE Global Communications Conference, GLOBECOM 2015. Institute of Electrical and Electronics Engineers Inc., 7417365. (2015 IEEE Global Communications Conference, GLOBECOM 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Should smartphone users mock apps?

DiRienzo, N. & Challen, G., Feb 6 2015, Proceedings - 11th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2014. Institute of Electrical and Electronics Engineers Inc., p. 657-662 6 p. 7035760. (Proceedings - 11th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, MASS 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The missing numerator: Toward a value measure for smartphone apps

Anudipa, M. & Challen, G., Feb 12 2015, HotMobile 2015 - 16th International Workshop on Mobile Computing Systems and Applications. Association for Computing Machinery, Inc, p. 99-104 6 p. (HotMobile 2015 - 16th International Workshop on Mobile Computing Systems and Applications).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The PocketLocker personal cloud storage system

Nandugudi, A., Nuessle, C., Challen, G., Miluzzo, E. & Chen, Y. F., Jan 28 2015, Proceedings of the 2014 6th International Conference on Mobile Computing, Applications and Services, MobiCASE 2014. Institute of Electrical and Electronics Engineers Inc., p. 235-244 10 p. 7026304. (Proceedings of the 2014 6th International Conference on Mobile Computing, Applications and Services, MobiCASE 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2014

Crowdsourcing access network spectrum allocation using smartphones

Shi, J., Guan, Z., Qiao, C., Melodia, T., Koutsonikolas, D. & Challen, G., Oct 27 2014, Proceedings of the 13th ACM Workshop on Hot Topics in Networks, HotNets 2014. Association for Computing Machinery, Inc, 2673866. (Proceedings of the 13th ACM Workshop on Hot Topics in Networks, HotNets 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

PocketParker: Pocketsourcing parking lot availability

Nandugudi, A., Ki, T., Nuessle, C. & Challen, G., Jan 1 2014, UbiComp 2014 - Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing. Association for Computing Machinery, Inc, p. 963-973 11 p. (UbiComp 2014 - Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2013

PhoneLab: A large programmable smartphone testbed

Nandugudi, A., Maiti, A., Ki, T., Bulut, F., Demirbas, M., Kosar, T., Qiao, C., Ko, S. Y. & Challen, G. W., Jan 1 2013, SenseMine 2013 - Proceedings of the 1st International Workshop on Sensing and Big Data Mining. Association for Computing Machinery, (SenseMine 2013 - Proceedings of the 1st International Workshop on Sensing and Big Data Mining).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2010

IDEA: Integrated distributed energy awareness for wireless sensor networks

Challen, G. W., Waterman, J. & Welsh, M., Aug 2 2010, MobiSys'10 - Proceedings of the 8th International Conference on Mobile Systems, Applications, and Services. p. 35-48 14 p. (MobiSys'10 - Proceedings of the 8th International Conference on Mobile Systems, Applications, and Services).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2009

Poster abstract: Integrated distributed energy awareness for wireless sensor networks

Challen, G. W., Waterman, J. & Welsh, M., Dec 1 2009, Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems, SenSys 2009. p. 381-382 2 p. (Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems, SenSys 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2008

Lance: Optimizing high-resolution signal collection in wireless sensor networks

Werner-Allen, G., Dawson-Haggerty, S. & Welsh, M., Dec 1 2008, SenSys'08 - Proceedings of the 6th ACM Conference on Embedded Networked Sensor Systems. p. 169-182 14 p. (SenSys'08 - Proceedings of the 6th ACM Conference on Embedded Networked Sensor Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Resource aware programming in the Pixie OS

Lorincz, K., Chen, B. R., Waterman, J., Werner-Allen, G. & Welsh, M., Dec 1 2008, SenSys'08 - Proceedings of the 6th ACM Conference on Embedded Networked Sensor Systems. p. 211-224 14 p. (SenSys'08 - Proceedings of the 6th ACM Conference on Embedded Networked Sensor Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2006

Demonstration: Real-time volcanic earthquake localization

Werner-Allen, G., Swieskowski, P. & Welsh, M., Dec 1 2006, SenSys'06: Proceedings of the Fourth International Conference on Embedded Networked Sensor Systems. p. 357-358 2 p. (SenSys'06: Proceedings of the Fourth International Conference on Embedded Networked Sensor Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2005

Fireflyinspired sensor network synchronicity with realistic radio effects

Wernerallen, G., Tewari, G., Patel, A., Welsh, M. & Nagpal, R., Jan 1 2005, SenSys 2005 - Proceedings of the 3rd International Conference on Embedded Networked Sensor Systems. Association for Computing Machinery, p. 142-153 12 p. (SenSys 2005 - Proceedings of the 3rd International Conference on Embedded Networked Sensor Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

MoteLab: A wireless sensor network testbed

Werner-Allen, G., Swieskowski, P. & Welsh, M., Dec 1 2005, 2005 Fourth International Symposium on Information Processing in Sensor Networks, IPSN 2005. p. 483-488 6 p. 1440979. (2005 4th International Symposium on Information Processing in Sensor Networks, IPSN 2005; vol. 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sensor networks for high-resolution monitoring of volcanic activity

Welsh, M., Challen, G. W., Lorincz, K., Marcillo, O., Johnson, J., Ruiz, M. & Lees, J., Dec 1 2005, Proceedings of the 20th ACM Symposium on Operating Systems Principles, SOSP 2005. (Proceedings of the 20th ACM Symposium on Operating Systems Principles, SOSP 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2004

Simulating the power consumption of large-scale sensor network applications

Shnayder, V., Hempstead, M., Chen, B. R., Allen, G. W. & Welsh, M., 2004, SenSys'04 - Proceedings of the Second International Conference on Embedded Networked Sensor Systems. Association for Computing Machinery, p. 188-200 13 p. (SenSys'04 - Proceedings of the Second International Conference on Embedded Networked Sensor Systems).

Research output: Chapter in Book/Report/Conference proceedingConference contribution