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ORCIDGeoffrey Challen
Person information
- affiliation: University of Illinois at Urbana-Champaign, Urbana, IL, USA
- affiliation: University at Buffalo, Buffalo, NY, USA
- affiliation: Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
- affiliation (PhD 2010): Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, USA
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2020 – today
- 2025
[c39]Geoffrey Challen, Ben Nordick:
Accelerating Accurate Assignment Authoring Using Solution-Generated Autograders. SIGCSE (1) 2025: 227-233- [c38]Yiqiu Zhou, Luc Paquette, Geoffrey Challen:
Investigating the Presence and Development of Student Instructor Preferences in a Large-Scale CS1 Course. SIGCSE (1) 2025: 1337-1343 - [c37]Geoffrey Challen:
Authoring Interactive Online Lessons Using learncs.online. SIGCSE (2) 2025: 1769 - 2024
- [c36]Hongxuan Chen
, Ang Li, Geoffrey Challen, Kathryn Cunningham:
Implementation of Split Deadlines in a Large CS1 Course. SIGCSE (1) 2024: 193-199 - [c35]Geoffrey Challen, Victoria Dean, Nate Derbinsky, Matt X. Wang, Jacqueline Smith:
Interviewing the Teaching Faculty Hiring Process. SIGCSE (2) 2024: 1525-1526 - 2021
- [c34]Guru Prasad Srinivasa, David Werner, Mark Hempstead, Geoffrey Challen:
Thermal-Aware Overclocking for Smartphones. ISPASS 2021: 220-222 - 2020
- [c33]Liia Butler, Geoffrey Challen, Tao Xie:
Data-Driven Investigation into Variants of Code Writing Questions. CSEE&T 2020: 1-10
2010 – 2019
- 2019
- [c32]Guru Prasad Srinivasa, Scott Haseley, Geoffrey Challen, Mark Hempstead:
Quantifying Process Variations and Its Impacts on Smartphones. ISPASS 2019: 117-126 - [c31]Jonathan Osei-Owusu, Angello Astorga, Liia Butler, Tao Xie, Geoffrey Challen:
Grading-Based Test Suite Augmentation. ASE 2019: 226-229 - [i2]Jinghao Shi, Edwin Santos, Geoffrey Challen:
Lessons from Four Years of PHONELAB Experimentation. CoRR abs/1902.01929 (2019) - 2018
- [j5]Jinghao Shi, Shuvendu K. Lahiri, Ranveer Chandra, Geoffrey Challen:
Wireless protocol validation under uncertainty. Formal Methods Syst. Des. 53(1): 33-53 (2018) - [j4]Geoffrey Challen:
Session details: Arm's Length. GetMobile Mob. Comput. Commun. 22(2) (2018) - [c30]Ashkan Nikravesh, Qi Alfred Chen, Scott Haseley, Xiao Zhu, Geoffrey Challen, Z. Morley Mao:
QoE Inference and Improvement Without End-Host Control. SEC 2018: 43-57 - [i1]Jinghao Shi, Shuvendu K. Lahiri, Ranveer Chandra, Geoffrey Challen:
VeriFi: Model-Driven Runtime Verification Framework for Wireless Protocol Implementations. CoRR abs/1808.03406 (2018) - 2017
- [j3]Tong Guan, Le Fang, Wen Dong, Dimitrios Koutsonikolas, Geoffrey Challen, Chunming Qiao:
Robust, cost-effective and scalable localization in large indoor areas. Comput. Networks 120: 43-55 (2017) - [c29]Guru Prasad Srinivasa, Rizwana Begum, Scott Haseley, Mark Hempstead, Geoffrey Challen:
Separated By Birth: Hidden Differences Between Seemingly-Identical Smartphone CPUs. HotMobile 2017: 103-108 - 2016
- [c28]Rizwana Begum, Mark Hempstead, Guru Prasad Srinivasa, Geoffrey Challen:
Algorithms for CPU and DRAM DVFS under inefficiency constraints. ICCD 2016: 161-168 - [c27]Jinghao Shi, Lei Meng, Aaron Striegel, Chunming Qiao, Dimitrios Koutsonikolas, Geoffrey Challen:
A walk on the client side: Monitoring enterprise Wifi networks using smartphone channel scans. INFOCOM 2016: 1-9 - [c26]Scott Haseley, Geoffrey Challen:
Poster: QoE-centric Mobile Operating System Design. MobiSys (Companion Volume) 2016: 135 - [c25]Jinghao Shi, Shuvendu K. Lahiri, Ranveer Chandra, Geoffrey Challen:
Wireless Protocol Validation Under Uncertainty. RV 2016: 351-367 - 2015
- [j2]Jinghao Shi, Edwin Santos, Geoffrey Challen:
Why and How to Use Phonelab. GetMobile Mob. Comput. Commun. 19(4): 32-38 (2015) - [c24]Tong Guan, Wen Dong, Dimitrios Koutsonikolas, Geoffrey Challen, Chunming Qiao:
Robust, Cost-Effective and Scalable Localization in Large Indoor Areas. GLOBECOM 2015: 1-6 - [c23]Rizwana Begum, David Werner, Mark Hempstead, Guru Prasad, Geoffrey Challen:
Energy-Performance Trade-offs on Energy-Constrained Devices with Multi-component DVFS. IISWC 2015: 34-43 - [c22]Anudipa Maiti, Yihong Chen, Geoffrey Challen:
Jouler: A Policy Framework Enabling Effective and Flexible Smartphone Energy Management. MobiCASE 2015: 161-180 - [c21]Jinghao Shi, Liwen Gui, Dimitrios Koutsonikolas, Chunming Qiao, Geoffrey Challen:
A Little Sharing Goes a Long Way: The Case for Reciprocal Wifi Sharing. HotWireless@MobiCom 2015: 6-10 - [c20]Oliver Kennedy, Jerry Antony Ajay, Geoffrey Challen, Lukasz Ziarek:
Pocket Data: The Need for TPC-MOBILE. TPCTC 2015: 8-25 - [c19]Anudipa Maiti, Geoffrey Challen:
The Missing Numerator: Toward a Value Measure for Smartphone Apps. HotMobile 2015: 99-104 - [c18]Geoffrey Challen, Jerry Antony Ajay, Nick DiRienzo, Oliver Kennedy, Anudipa Maiti, Anandatirtha Nandugudi, Sriram Shantharam, Jinghao Shi, Guru Prasad Srinivasa, Lukasz Ziarek:
maybe We Should Enable More Uncertain Mobile App Programming. HotMobile 2015: 105-110 - 2014
- [c17]Jinghao Shi, Zhangyu Guan, Chunming Qiao, Tommaso Melodia, Dimitrios Koutsonikolas, Geoffrey Challen:
Crowdsourcing Access Network Spectrum Allocation Using Smartphones. HotNets 2014: 17:1-17:7 - [c16]Anandatirtha Nandugudi, Taeyeon Ki, Carl Nuessle, Geoffrey Challen:
PocketParker: pocketsourcing parking lot availability. UbiComp 2014: 963-973 - [c15]Nick DiRienzo, Geoffrey Challen:
Should Smartphone Users Mock Apps? MASS 2014: 657-662 - [c14]Nick DiRienzo, Geoffrey Challen:
Controlling smartphone user privacy via objective-driven context mocking. MobiCASE 2014: 216-224 - [c13]Anandatirtha Nandugudi, Carl Nuessle, Geoffrey Challen, Emiliano Miluzzo, Yih-Farn Robin Chen:
The PocketLocker personal cloud storage system. MobiCASE 2014: 235-244 - [c12]Geoffrey Challen, Scott Haseley, Anudipa Maiti, Anandatirtha Nandugudi, Guru Prasad, Mukta Puri, Junfei Wang:
The mote is dead: long live the discarded smartphone! HotMobile 2014: 5:1-5:6 - 2013
- [c11]Sean Purdon, Branislav Kusy, Raja Jurdak, Geoffrey Challen:
Model-free HVAC control using occupant feedback. LCN Workshops 2013: 84-92 - [c10]Anandatirtha Nandugudi, Anudipa Maiti, Taeyeon Ki, Muhammed Fatih Bulut, Murat Demirbas, Tevfik Kosar, Chunming Qiao, Steven Y. Ko, Geoffrey Challen:
PhoneLab: A Large Programmable Smartphone Testbed. SENSEMINE@SenSys 2013: 4:1-4:6 - 2011
- [c9]Geoffrey Challen, Mark Hempstead:
The Case for Power-Agile Computing. HotOS 2011
2000 – 2009
- 2008
- [c8]Geoffrey Werner-Allen, Stephen Dawson-Haggerty, Matt Welsh:
Lance: optimizing high-resolution signal collection in wireless sensor networks. SenSys 2008: 169-182 - [c7]Konrad Lorincz, Bor-rong Chen, Jason Waterman, Geoffrey Werner-Allen, Matt Welsh:
Resource aware programming in the Pixie OS. SenSys 2008: 211-224 - 2006
- [j1]Geoffrey Werner-Allen, Konrad Lorincz, Matt Welsh, Omar Marcillo, Jeff Johnson, Mario Ruiz, Jonathan Lees:
Deploying a Wireless Sensor Network on an Active Volcano. IEEE Internet Comput. 10(2): 18-25 (2006) - [c6]Geoffrey Werner-Allen, Konrad Lorincz, Jeff Johnson, Jonathan Lees, Matt Welsh:
Fidelity and Yield in a Volcano Monitoring Sensor Network. OSDI 2006: 381-396 - [c5]Geoffrey Werner-Allen, Patrick Swieskowski, Matt Welsh:
Real-time volcanic earthquake localization. SenSys 2006: 357-358 - 2005
- [c4]Geoffrey Werner-Allen, Jeff Johnson, Mario Ruiz, Jonathan Lees, Matt Welsh:
Monitoring volcanic eruptions with a wireless sensor network. EWSN 2005: 108-120 - [c3]Geoffrey Werner-Allen, Geetika Tewari, Ankit Patel, Matt Welsh, Radhika Nagpal:
Firefly-inspired sensor network synchronicity with realistic radio effects. SenSys 2005: 142-153 - [c2]Matt Welsh, Geoff Werner-Allen, Konrad Lorincz, Omar Marcillo, Jeff Johnson, Mario Ruiz, Jonathan Lees:
Sensor networks for high-resolution monitoring of volcanic activity. SOSP 2005: 1 - 2004
- [c1]Victor Shnayder, Mark Hempstead, Bor-rong Chen, Geoffrey Werner-Allen, Matt Welsh:
Simulating the power consumption of large-scale sensor network applications. SenSys 2004: 188-200
Coauthor Index
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