Page for Publication based on Types

Journal Paper

1. Duncan, S. P., & Chen, H. (2023). Detecting network-based internet censorship via latent feature representation learning. Computers & Security, 128(103138), 103138:1–103138:13. https://doi.org/https://doi.org/10.1016/j.cose.2023.103138

   Internet censorship is a phenomenon of societal importance and attracts investigation from multiple disciplines. Several research groups, such as Censored Planet, have deployed large scale Internet measurement platforms to collect network reachability data. However, existing studies generally rely on manually designed rules (i.e., using censorship fingerprints) to detect network-based Internet censorship from the data. While this rule-based approach yields a high true positive detection rate, it suffers from several challenges: it requires human expertise, is laborious, and cannot detect any censorship not captured by the rules. Seeking to overcome these challenges, we design and evaluate a classification model based on latent feature representation learning and an image-based classification model to detect network-based Internet censorship. To infer latent feature representations from network reachability data, we propose a sequence-to-sequence autoencoder to capture the structure and the order of data elements in the data. To estimate the probability of censorship events from the inferred latent features, we rely on a densely connected multi-layer neural network model. Our image-based classification model encodes a network reachability data record as a gray-scale image and classifies the image as censored or not using a dense convolutional neural network. We compare and evaluate both approaches using data sets from Censored Planet via a hold-out evaluation. Both classification models are capable of detecting network-based Internet censorship as we were able to identify instances of censorship not detected by the known fingerprints. Latent feature representations likely encode more nuances in the data since the latent feature learning approach discovers a greater quantity, and a more diverse set, of new censorship instances.

   @article{duncan2022detecting,
     title = {Detecting network-based internet censorship via latent feature representation learning},
     journal = {Computers \& Security},
     volume = {128},
     number = {103138},
     pages = {103138:1-103138:13},
     numpages = {13},
     year = {2023},
     issn = {0167-4048},
     doi = {https://doi.org/10.1016/j.cose.2023.103138},
     url = {https://www.sciencedirect.com/science/article/pii/S0167404823000482},
     author = {Duncan, Shawn P. and Chen, Hui},
     keywords = {Internet censorship, Internet censorship detection, Network-based internet censorship detection, Deep neural network, Feature representation learning}
   }
   

2. Chen, H., & Wang, J. (2023). Active Learning for Efficient Soil Monitoring in Large Terrain with Heterogeneous Sensor Network. Sensors, 23(5), 2365:1–2365:25. https://doi.org/10.3390/s23052365

   Soils are a complex ecosystem that provides critical services, such as growing food, supplying antibiotics, filtering wastes, and maintaining biodiversity; hence monitoring soil health and domestication is required for sustainable human development. Low-cost and high-resolution soil monitoring systems are challenging to design and build. Compounded by the sheer size of the monitoring area of interest and the variety of biological, chemical, and physical parameters to monitor, naive approaches to adding or scheduling more sensors will suffer from cost and scalability problems. We investigate a multi-robot sensing system integrated with an active learning-based predictive modeling technique. Taking advantage of advances in machine learning, the predictive model allows us to interpolate and predict soil attributes of interest from the data collected by sensors and soil surveys. The system provides high-resolution prediction when the modeling output is calibrated with static land-based sensors. The active learning modeling technique allows our system to be adaptive in data collection strategy for time-varying data fields, utilizing aerial and land robots for new sensor data. We evaluated our approach using numerical experiments with a soil dataset focusing on heavy metal concentration in a flooded area. The experimental results demonstrate that our algorithms can reduce sensor deployment costs via optimized sensing locations and paths while providing high-fidelity data prediction and interpolation. More importantly, the results verify the adapting behavior of the system to the spatial and temporal variations of soil conditions.

   @article{s23052365,
     author = {Chen, Hui and Wang, Ju},
     title = {Active Learning for Efficient Soil Monitoring in Large Terrain with Heterogeneous Sensor Network},
     journal = {Sensors},
     volume = {23},
     year = {2023},
     number = {5},
     pages = {2365:1-2365:25},
     numpages = {25},
     article-number = {2365},
     url = {https://www.mdpi.com/1424-8220/23/5/2365},
     issn = {1424-8220},
     doi = {10.3390/s23052365}
   }
   

3. Zhao, Y., Damevski, K., & Chen, H. (2023). A Systematic Survey of Just-in-Time Software Defect Prediction. ACM Computing Surveys, 55(10), 201:1–201:35. https://doi.org/10.1145/3567550

   Recent years have experienced sustained focus in research on software defect prediction that aims to predict the likelihood of software defects. Moreover, with the increased interest in continuous deployment, a variant of software defect prediction called Just-in-Time Software Defect Prediction (JIT-SDP) focuses on predicting whether each incremental software change is defective. JIT-SDP is unique in that it consists of two interconnected data streams, one consisting of the arrivals of software changes stemming from design and implementation, and the other the (defective or clean) labels of software changes resulting from quality assurance processes.We present a systematic survey of 67 JIT-SDP studies with the objective to help researchers advance the state of the art in JIT-SDP and to help practitioners become familiar with recent progress. We summarize best practices in each phase of the JIT-SDP workflow, carry out a meta-analysis of prior studies, and suggest future research directions. Our meta-analysis of JIT-SDP studies indicates, among other findings, that the predictive performance correlates with change defect ratio, suggesting that JIT-SDP is most performant in projects that experience relatively high defect ratios. Future research directions for JIT-SDP include situating each technique into its application domain, reliability-aware JIT-SDP, and user-centered JIT-SDP.

   @article{zhao2022systematic,
     author = {Zhao, Yunhua and Damevski, Kostadin and Chen, Hui},
     title = {A Systematic Survey of Just-in-Time Software Defect Prediction},
     month = feb,
     year = {2023},
     issue_date = {October 2023},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     volume = {55},
     number = {10},
     pages = {201:1-201:35},
     issn = {0360-0300},
     url = {https://dl.acm.org/doi/10.1145/3567550},
     doi = {10.1145/3567550},
     journal = {ACM Computing Surveys},
     articleno = {201},
     numpages = {35},
     keywords = {software change metrics, release software defect prediction, machine learning, searching-based algorithms, Software defect prediction, just-in-time software defect prediction, change defect density, change-level software defect prediction}
   }
   

4. Zhao, Y., Damevski, K., & Chen, H. (2023). Supplementary Material for: A Systematic Survey of Just-in-time Software Defect Prediction. ACM Computing Surveys, 55(10), 201:1–201:25. https://dl.acm.org/action/downloadSupplement?doi=10.1145%2F3567550&file=3567550-supp.pdf

   @article{zhao2022systematicsuppl,
     author = {Zhao, Yunhua and Damevski, Kostadin and Chen, Hui},
     title = {Supplementary Material for:
     		A Systematic Survey of Just-in-time Software Defect
     			Prediction},
     year = {2023},
     issue_date = {October 2023},
     publisher = {Association for Computing Machinery},
     address = {New York, NY, USA},
     volume = {55},
     number = {10},
     pages = {201:1-201:25},
     issn = {0360-0300},
     url = {https://dl.acm.org/action/downloadSupplement?doi=10.1145%2F3567550&file=3567550-supp.pdf},
     note = {Online only: \url{https://dl.acm.org/action/downloadSupplement?doi=10.1145%2F3567550&file=3567550-supp.pdf}},
     journal = {ACM Computing Surveys},
     month = feb,
     numpages = {25}
   }
   

5. Chen, H., Damevski, K., Shepherd, D., & Kraft, N. A. (2019). Modeling hierarchical usage context for software exceptions based on interaction data. Automated Software Engineering, 26(4), 733–756. https://doi.org/10.1007/s10515-019-00265-3

   Traces of user interactions with a software system, captured in production, are commonly used as an input source for user experience testing. In this paper, we present an alternative use, introducing a novel approach of modeling user interaction traces enriched with another type of data gathered in production—software fault reports consisting of software exceptions and stack traces. The model described in this paper aims to improve developers’ comprehension of the circumstances surrounding a specific software exception and can highlight specific user behaviors that lead to a high frequency of software faults. Modeling the combination of interaction traces and software crash reports to form an interpretable and useful model is challenging due to the complexity and variance in the combined data source. Therefore, we propose a probabilistic unsupervised learning approach, adapting the nested hierarchical Dirichlet process, which is a Bayesian non-parametric hierarchical topic model originally applied to natural language data. This model infers a tree of topics, each of whom describes a set of commonly co-occurring commands and exceptions. The topic tree can be interpreted hierarchically to aid in categorizing the numerous types of exceptions and interactions. We apply the proposed approach to large scale datasets collected from the ABB RobotStudio software application, and evaluate it both numerically and with a small survey of the RobotStudio developers.

   @article{chen2019modeling,
     author = {Chen, Hui and Damevski, Kostadin and Shepherd, David and Kraft, Nicholas A.},
     title = {Modeling hierarchical usage context for software exceptions based on interaction data},
     journal = {Automated Software Engineering},
     year = {2019},
     month = dec,
     day = {01},
     volume = {26},
     number = {4},
     pages = {733--756},
     issn = {1573-7535},
     doi = {10.1007/s10515-019-00265-3},
     url = {https://doi.org/10.1007/s10515-019-00265-3}
   }
   

6. Chen, H., Coogle, J., & Damevski, K. (2019). Modeling Stack Overflow tags and topics as a hierarchy of concepts. Journal of Systems and Software, 156, 283–299. https://doi.org/https://doi.org/10.1016/j.jss.2019.07.033

   Developers rely on online Q&A forums to look up technical solutions, to pose questions on implementation problems, and to enhance their community profile by contributing answers. Many popular developer communication platforms, such as the Stack Overflow Q&A forum, require threads of discussion to be tagged by their contributors for easier lookup in both asking and answering questions. In this paper, we propose to leverage Stack Overflow’s tags to create a hierarchical organization of concepts discussed on this platform. The resulting concept hierarchy couples tags with a model of their relevancy to prospective questions and answers. For this purpose, we configure and apply a supervised multi-label hierarchical topic model to Stack Overflow questions and demonstrate the quality of the model in several ways: by identifying tag synonyms, by tagging previously unseen Stack Overflow posts, and by exploring how the hierarchy could aid exploratory searches of the corpus. The results suggest that when traversing the inferred hierarchical concept model of Stack Overflow the questions become more specific as one explores down the hierarchy and more diverse as one jumps to different branches. The results also indicate that the model is an improvement over the baseline for the detection of tag synonyms and that the model could enhance existing ensemble methods for suggesting tags for new questions. The paper indicates that the concept hierarchy as a modeling imperative can create a useful representation of the Stack Overflow corpus. This hierarchy can be in turn integrated into development tools which rely on information retrieval and natural language processing, and thereby help developers more efficiently navigate crowd-sourced online documentation.

   @article{CHEN2019283,
     title = {Modeling {Stack Overflow} tags and topics as a hierarchy of concepts},
     journal = {Journal of Systems and Software},
     volume = {156},
     pages = {283 - 299},
     month = oct,
     year = {2019},
     issn = {0164-1212},
     doi = {https://doi.org/10.1016/j.jss.2019.07.033},
     url = {http://www.sciencedirect.com/science/article/pii/S0164121219301499},
     author = {Chen, Hui and Coogle, John and Damevski, Kostadin},
     keywords = {Concept hierarchy, Hierarchical topic model, Stack overflow, Tag synonym identification, Tag prediction, Entropy-based search evaluation}
   }
   

7. Xiao, Y., Zeng, L., Chen, H., & Li, T. (2019). Prototyping Flow-Net Logging for Accountability Management in Linux Operating Systems. IEEE Access, 7, 131172–131187. https://doi.org/10.1109/ACCESS.2019.2937637

   @article{Xiao8813093,
     author = {{Xiao}, Y. and {Zeng}, L. and {Chen}, H. and {Li}, T.},
     journal = {IEEE Access},
     title = {Prototyping Flow-Net Logging for Accountability Management in Linux Operating Systems},
     year = {2019},
     month = aug,
     volume = {7},
     number = {},
     pages = {131172-131187},
     keywords = {Linux;Access control;Kernel;Internet of Things;Computer security;Computer security;accountability;logging;auditing;flow-net;IoT},
     doi = {10.1109/ACCESS.2019.2937637},
     issn = {}
   }
   

8. Damevski, K., Chen, H., Shepherd, D. C., Kraft, N. A., & Pollock, L. (2018). Predicting Future Developer Behavior in the IDE Using Topic Models. IEEE Transactions on Software Engineering, 44(11), 1100–1111. https://doi.org/10.1109/TSE.2017.2748134

   @article{damevski8024001,
     author = {Damevski, Kostadin and Chen, Hui and Shepherd, David C. and Kraft, Nicholas A. and Pollock, Lori},
     journal = {IEEE Transactions on Software Engineering},
     title = {Predicting Future Developer Behavior in the IDE Using Topic Models},
     year = {2018},
     volume = {44},
     number = {11},
     pages = {1100-1111},
     keywords = {program debugging;recommender systems;software engineering;future developer behavior;early software command recommender systems;negative user reaction;unusually complex applications;command recommendations;recommendation generation;user experience;command recommenders;future task context;debug OR;future development commands;software development interaction data;predicting future IDE commands;empirically-interpretable observations;Natural languages;Data models;Analytical models;Predictive models;Visualization;Adaptation models;Data analysis;Command recommendation systems;IDE interaction data},
     doi = {10.1109/TSE.2017.2748134},
     issn = {0098-5589},
     month = nov
   }
   

9. Fu, B., Xiao, Y., & Chen, H. (2018). FNF: Flow-net based fingerprinting and its applications. Computers & Security, 75, 167–181. https://doi.org/https://doi.org/10.1016/j.cose.2018.02.005

   @article{FU2018167,
     title = {{FNF}: Flow-net based fingerprinting and its applications},
     journal = {Computers \& Security},
     volume = {75},
     pages = {167 - 181},
     month = jun,
     year = {2018},
     issn = {0167-4048},
     doi = {https://doi.org/10.1016/j.cose.2018.02.005},
     url = {http://www.sciencedirect.com/science/article/pii/S0167404818300877},
     author = {Fu, Bo and Xiao, Yang and Chen, Hui},
     keywords = {Flow-net, Logging, Fingerprint, Intrusion detection, Computer networks, Computer systems}
   }
   

10. Zeng, L., Chen, H., & Xiao, Y. (2017). Accountable Administration in Operating Systems. International Journal of Information and Computer Security, 9, 157–179. https://doi.org/10.1504/IJICS.2017.10005900

    @article{zeng2017accountable,
      author = {Zeng, Lei and Chen, Hui and Xiao, Yang},
      title = {Accountable Administration in Operating Systems},
      journal = {International Journal of Information and Computer Security},
      year = {2017},
      volume = {9},
      no = {3},
      pages = {157--179},
      doi = {10.1504/IJICS.2017.10005900},
      publisher = {Indersciene}
    }
    

11. Zeng, L., Xiao, Y., Chen, H., Sun, B., & Han, W. (2016). Computer operating system logging and security issues: a survey. Security and Communication Networks, 9(17), 4804–4821. https://doi.org/10.1002/sec.1677

    @article{SEC_SEC1677,
      author = {Zeng, Lei and Xiao, Yang and Chen, Hui and Sun, Bo and Han, Wenlin},
      title = {Computer operating system logging and security issues: a survey},
      journal = {Security and Communication Networks},
      volume = {9},
      number = {17},
      issn = {1939-0122},
      url = {http://dx.doi.org/10.1002/sec.1677},
      doi = {10.1002/sec.1677},
      pages = {4804--4821},
      keywords = {logging, operating system, Linux, Unix, security},
      year = {2016}
    }
    

12. Lee, J.-S., Damevski, K., & Chen, H. (2016). Exploring Computer Science Students’ Learning of Sensor-Driven Mobile App Design: A Case Study. International Journal of Teaching and Case Studies, 3/4, 187–206. https://doi.org/10.1504/IJTCS.2016.080934

    @article{ijtcs_teaching_2016,
      author = {Lee, Joon-Suk and Damevski, Kostadin and Chen, Hui},
      title = {Exploring Computer Science Students’ Learning of Sensor-Driven Mobile App Design: A Case Study},
      journal = {International Journal of Teaching and Case Studies},
      year = {2016},
      volume = {3/4},
      no = {7},
      pages = {187--206},
      doi = {10.1504/IJTCS.2016.080934}
    }
    

13. Zeng, L., Xiao, Y., & Chen, H. (2015). Auditing overhead, auditing adaptation, and benchmark evaluation in Linux. Security and Communication Networks, 8(18), 3523–3534. https://doi.org/10.1002/sec.1277

    @article{SEC_SEC1277,
      author = {Zeng, Lei and Xiao, Yang and Chen, Hui},
      title = {Auditing overhead, auditing adaptation, and benchmark evaluation in {Linux}},
      journal = {Security and Communication Networks},
      volume = {8},
      number = {18},
      issn = {1939-0122},
      url = {http://dx.doi.org/10.1002/sec.1277},
      doi = {10.1002/sec.1277},
      pages = {3523--3534},
      keywords = {logging, overhead, Linux, auditing},
      year = {2015}
    }
    

14. Wang, J., Damevski, K., & Chen, H. (2015). Sensor data modeling and validating for wireless soil sensor network . Computers and Electronics in Agriculture , 112(0), 75–82. https://doi.org/http://dx.doi.org/10.1016/j.compag.2014.12.016

    @article{Wang201575,
      title = {Sensor data modeling and validating for wireless soil sensor network },
      journal = {Computers and Electronics in Agriculture },
      volume = {112},
      number = {0},
      pages = {75 - 82},
      month = mar,
      year = {2015},
      note = {Special Issue in Precision Agriculture },
      issn = {0168-1699},
      doi = {http://dx.doi.org/10.1016/j.compag.2014.12.016},
      url = {http://www.sciencedirect.com/science/article/pii/S0168169914003263},
      author = {Wang, Ju and Damevski, Kostadin and Chen, Hui},
      keywords = {High-tunnel greenhouse }
    }
    

15. Xiao, Z., Xiao, Y., & Chen, H. (2014). An Accountable Framework for Sensing-oriented Mobile Cloud Computing. Journal of Internet Technology, 15(5), 813–822. https://doi.org/10.6138/JIT.2014.15.5.11

    @article{Xiaozf2014,
      title = {An Accountable Framework for Sensing-oriented Mobile Cloud Computing},
      author = {Xiao, Zhifeng and Xiao, Yang and Chen, Hui},
      journal = {Journal of Internet technology},
      volume = {15},
      number = {5},
      pages = {813 - 822},
      month = sep,
      year = {2014},
      doi = {10.6138/JIT.2014.15.5.11},
      preprint = {preprint/AccntMobiCloud_16_Xiao.pdf}
    }
    

16. Chen, H., Xiao, Y., & Vrbsky, S. V. (2013). An update-based step-wise optimal cache replacement for wireless data access. Computer Networks, 57(1), 197–212. https://doi.org/10.1016/j.comnet.2012.09.012

    @article{Chen2013197,
      title = {An update-based step-wise optimal cache replacement for wireless data access},
      journal = {Computer Networks},
      volume = {57},
      number = {1},
      pages = {197 - 212},
      year = {2013},
      note = {},
      issn = {1389-1286},
      doi = {10.1016/j.comnet.2012.09.012},
      url = {http://www.sciencedirect.com/science/article/pii/S1389128612003374},
      author = {Chen, Hui and Xiao, Yang and Vrbsky, Susan V.},
      keywords = {Wireless data access}
    }
    

17. Xiao, Y., Chen, H., Guizani, M., & Chen, H.-H. (2012). Optimal Pipeline Paging Load Balancing for Hierarchical Cellular Networks. IEEE Transactions on Mobile Computing, 11(9), 1532–1544. https://doi.org/http://doi.ieeecomputersociety.org/10.1109/TMC.2011.166

    @article{Xiao_10_1109_TMC_2011_166,
      author = {Xiao, Yang and Chen, Hui and Guizani, Mohsen and Chen, Hsiao-Hwa},
      title = {Optimal Pipeline Paging Load Balancing for Hierarchical Cellular Networks},
      journal = {IEEE Transactions on Mobile Computing},
      volume = {11},
      number = {9},
      issn = {1536-1233},
      year = {2012},
      pages = {1532-1544},
      doi = {http://doi.ieeecomputersociety.org/10.1109/TMC.2011.166},
      publisher = {IEEE Computer Society},
      address = {Los Alamitos, CA, USA}
    }
    

18. Xiao, Y., Zhang, Y., Gibson, J. H., Xie, G. G., & Chen, H. (2011). Performance analysis of ALOHA and p-persistent ALOHA for multi-hop underwater acoustic sensor networks. Cluster Computing, 14(1), 65–80. https://doi.org/10.1007/s10586-009-0093-z

    @article{Xiao_2011_PAA_1960999_1961025,
      author = {Xiao, Yang and Zhang, Yanping and Gibson, John H. and Xie, Geoffrey G. and Chen, Hui},
      title = {Performance analysis of {ALOHA} and p-persistent {ALOHA} for multi-hop underwater acoustic sensor networks},
      journal = {Cluster Computing},
      issue_date = {March 2011},
      volume = {14},
      number = {1},
      month = mar,
      year = {2011},
      issn = {1386-7857},
      pages = {65--80},
      numpages = {16},
      url = {http://dx.doi.org/10.1007/s10586-009-0093-z},
      doi = {10.1007/s10586-009-0093-z},
      acmid = {1961025},
      publisher = {Kluwer Academic Publishers},
      address = {Hingham, MA, USA},
      keywords = {ALOHA, MAC, Multi-hop, Underwater acoustic sensor networks, p-persistent ALOHA}
    }
    

19. Liu, J., Xiao, Y., Chen, H., Ozdemir, S., Dodle, S., & Singh, V. (2010). A Survey of Payment Card Industry Data Security Standard. IEEE Communications Surveys and Tutorials, 12(3), 287–303. https://doi.org/10.1109/SURV.2010.031810.00083

    @article{LIU_5455788,
      author = {Liu, Jing and Xiao, Yang and Chen, Hui and Ozdemir, S. and Dodle, S. and Singh, V.},
      journal = {IEEE Communications Surveys and Tutorials},
      title = {A Survey of Payment Card Industry Data Security Standard},
      month = {Third Quarter},
      year = {2010},
      volume = {12},
      number = {3},
      pages = {287-303},
      keywords = {credit transactions;research and development;security of data;PCI Data Security Standard;PCI Qualified Security Assessors;PCI security scanning;Payment Card Industry;QSA;Security Standards Council;credit cards;debit cards;payment card data handling;payment card networks;payment card transaction processing;prepaid cards;security breaches;security infrastructures;service providers;technical research problems;Data Security Standard;Payment Card Industry;Security},
      doi = {10.1109/SURV.2010.031810.00083},
      issn = {1553-877X}
    }
    

20. Xiao, Y., Chen, H., Wu, K., Sun, B., Zhang, Y., Sun, X., & Liu, C. (2010). Coverage and Detection of a Randomized Scheduling Algorithm in Wireless Sensor Networks. IEEE Transactions on Computers, 59(4), 507–521. https://doi.org/10.1109/TC.2009.170

    @article{XIAO_5313803,
      author = {Xiao, Yang and Chen, Hui and Wu, Kui and Sun, Bo and Zhang, Ying and Sun, Xinyu and Liu, Chong},
      journal = {IEEE Transactions on Computers},
      title = {Coverage and Detection of a Randomized Scheduling Algorithm in Wireless Sensor Networks},
      year = {2010},
      month = apr,
      volume = {59},
      number = {4},
      pages = {507-521},
      keywords = {scheduling;sensor placement;signal detection;wireless sensor networks;detection delay;detection probability;network coverage intensity;quality of service;randomized scheduling algorithm;wireless sensor network coverage;Algorithm design and analysis;Analytical models;Batteries;Computer science;Delay;Energy consumption;Event detection;Intrusion detection;Mathematics;Processor scheduling;Quality of service;Scheduling algorithm;Sun;Wireless sensor networks;Wireless sensor network;coverage;network lifetime;optimization.;quality of service},
      doi = {10.1109/TC.2009.170},
      issn = {0018-9340}
    }
    

21. Xiao, Y., Chen, H., Du, X., Zhang, Y., Chen, H.-H., & Guizani, M. (2009). On hierarchical pipeline paging in multi-tier overlaid hierarchical cellular networks. IEEE Transactions on Wireless Communications, 8(9), 4406–4410. https://doi.org/10.1109/TWC.2009.080717

    @article{XIAO_5285156,
      author = {Xiao, Yang and Chen, Hui and Du, Xiaojiang and Zhang, Yan and Chen, Hsiao-Hwa and Guizani, M.},
      journal = {IEEE Transactions on Wireless Communications},
      title = {On hierarchical pipeline paging in multi-tier overlaid hierarchical cellular networks},
      year = {2009},
      month = sep,
      volume = {8},
      number = {9},
      pages = {4406-4410},
      keywords = {cellular radio;mobile communication;paging communication;cellular service;hierarchical blanket paging;hierarchical pipeline paging;hierarchical sequential paging;mobile terminal;multitier overlaid hierarchical cellular networks;paging requests;Cellular networks;Computer science;Costs;Delay;Information science;Land mobile radio cellular systems;Paging strategies;Pipeline processing;Satellites;Telecommunication traffic;Multi-tier network;cellular network;hierarchical pipeline paging},
      doi = {10.1109/TWC.2009.080717},
      issn = {1536-1276}
    }
    

22. Chen, H., Xiao, Y., Hong, X., Hu, F., & Xie, J. (L. (2009). A survey of anonymity in wireless communication systems. Security and Communication Networks, 2(5), 427–444. https://doi.org/10.1002/sec.78

    @article{SEC_SEC78,
      author = {Chen, Hui and Xiao, Yang and Hong, Xiaoyan and Hu, Fei and Xie, Jiang (Linda)},
      title = {A survey of anonymity in wireless communication systems},
      journal = {Security and Communication Networks},
      volume = {2},
      number = {5},
      publisher = {John Wiley & Sons, Ltd.},
      issn = {1939-0122},
      url = {http://dx.doi.org/10.1002/sec.78},
      doi = {10.1002/sec.78},
      pages = {427--444},
      keywords = {anonymity, untraceability, temporary identity, ad hoc networks, authentication, routing, wireless networks},
      year = {2009}
    }
    

23. Xiao, Y., Zhang, Y., Peng, M., Chen, H., Du, X., Sun, B., & Wu, K. (2009). Two and three-dimensional intrusion object detection under randomized scheduling algorithms in sensor networks. Computer Networks, 53(14), 2458–2475. https://doi.org/10.1016/j.comnet.2009.05.002

    @article{Xiao20092458,
      title = {Two and three-dimensional intrusion object detection under randomized scheduling algorithms in sensor networks},
      journal = {Computer Networks},
      volume = {53},
      number = {14},
      pages = {2458 - 2475},
      year = {2009},
      note = {},
      issn = {1389-1286},
      doi = {10.1016/j.comnet.2009.05.002},
      url = {http://www.sciencedirect.com/science/article/pii/S1389128609001595},
      author = {Xiao, Yang and Zhang, Yanping and Peng, Miao and Chen, Hui and Du, Xiaojiang and Sun, Bo and Wu, Kui},
      keywords = {Three-dimensional}
    }
    

24. Chen, H., Xiao, Y., & Vrbsky, S. V. (2008). Scalability study of cache access mechanisms in multiple-cell wireless networks. Computer Networks, 52(15), 3017–3027. https://doi.org/10.1016/j.comnet.2008.06.018

    @article{Chen20083017,
      title = {Scalability study of cache access mechanisms in multiple-cell wireless networks},
      journal = {Computer Networks},
      volume = {52},
      number = {15},
      pages = {3017 - 3027},
      year = {2008},
      issn = {1389-1286},
      doi = {10.1016/j.comnet.2008.06.018},
      url = {http://www.sciencedirect.com/science/article/pii/S1389128608002156},
      author = {Chen, Hui and Xiao, Yang and Vrbsky, Susan V.},
      keywords = {Lease}
    }
    

25. Chen, H., & Xiao, Y. (2007). On-Bound Selection Cache Replacement Policy for Wireless Data Access. IEEE Transactions on Computers, 56(12), 1597–1611. https://doi.org/10.1109/TC.2007.70768

    @article{CHEN_4358225,
      author = {Chen, Hui and Xiao, Yang},
      journal = {IEEE Transactions on Computers},
      title = {On-Bound Selection Cache Replacement Policy for Wireless Data Access},
      month = dec,
      year = {2007},
      volume = {56},
      number = {12},
      pages = {1597-1611},
      keywords = {bandwidth allocation;cache storage;client-server systems;radio access networks;OBS cache replacement policy;limited bandwidth usage reduction;mobile devices;on-bound selection policy;wireless data access;wireless networks;Access protocols;Bandwidth;Broadcasting;Costs;History;Network servers;Upper bound;Wireless application protocol;Wireless communication;Wireless networks;access;cache;communication cost;effective hit ratio;replacement policy;update;wireless networks},
      doi = {10.1109/TC.2007.70768},
      issn = {0018-9340}
    }
    

26. Xiao, Y., Chen, H., Du, X., & Guizani, M. (2007). Performance Analysis of Blanket Paging, Sequential Probability Paging, and Pipeline Probability Paging for Wireless Systems. IEEE Transactions on Vehicular Technology, 56(5), 2745–2755. https://doi.org/10.1109/TVT.2007.898380

    @article{XIAO_4305549,
      author = {Xiao, Yang and Chen, Hui and Du, Xiaojiang and Guizani, M.},
      journal = {IEEE Transactions on Vehicular Technology},
      title = {Performance Analysis of Blanket Paging, Sequential Probability Paging, and Pipeline Probability Paging for Wireless Systems},
      month = sep,
      year = {2007},
      volume = {56},
      number = {5},
      pages = {2745-2755},
      keywords = {paging communication;telecommunication switching;blanket paging;mobile switching center;mobile terminal;paging delay constraint;paging request;performance analysis;pipeline probability paging;sequential probability paging;wireless networks;wireless systems;Analytical models;Computer science;Costs;Delay;Industrial control;Paging strategies;Performance analysis;Personal communication networks;Pipeline processing;Wireless networks;Concurrent;paging;parallel;performance evaluation;pipeline;wireless systems},
      doi = {10.1109/TVT.2007.898380},
      issn = {0018-9545}
    }
    

27. Xiao, Y., Chen, H., & Guizani, M. (2007). Non-Blocking Pipeline Paging with Known Location Probabilities for Wireless Systems. IEEE Transactions on Wireless Communications, 6(10), 3632–3640. https://doi.org/10.1109/TWC.2007.060048

    @article{XIAO_4350313,
      author = {Xiao, Yang and Chen, Hui and Guizani, M.},
      journal = {IEEE Transactions on Wireless Communications},
      title = {Non-Blocking Pipeline Paging with Known Location Probabilities for Wireless Systems},
      year = {2007},
      month = oct,
      volume = {6},
      number = {10},
      pages = {3632-3640},
      keywords = {cellular radio;optimisation;paging communication;personal communication networks;probability;quality of service;queueing theory;FIFO manner;PCS networks;QoS constraint;known location probabilities;nonblocking pipeline probability paging scheme;optimization problems;paging request;personal communication service;wireless systems;Aging;Computer science;Constraint optimization;Costs;Delay;Paging strategies;Personal communication networks;Pipeline processing;Quality of service;Senior members},
      doi = {10.1109/TWC.2007.060048},
      issn = {1536-1276}
    }
    

28. Xiao, Y., Chen, H., Chen, H.-H., Sun, B., & Chen, C. L. P. (2007). Optimal Utilization and Effects of Inaccurate Estimation in Mobile Database Failure Restoration. IEEE Transactions on Wireless Communications, 6(6), 2086–2095. https://doi.org/10.1109/TWC.2007.05432

    @article{XIAO_4251152,
      author = {Xiao, Yang and Chen, Hui and Chen, Hsiao-Hwa and Sun, Bo and Chen, C.L.P.},
      journal = {IEEE Transactions on Wireless Communications},
      title = {Optimal Utilization and Effects of Inaccurate Estimation in Mobile Database Failure Restoration},
      month = jun,
      year = {2007},
      volume = {6},
      number = {6},
      pages = {2086-2095},
      keywords = {database management systems;mobile computing;mobility management (mobile radio);personal communication networks;system recovery;adaptive p-persistent backoff database failure restoration;analytical model;demand reregistration messages;home location register;inaccurate estimation;mobile database;mobility databases;mobility management;optimal utilization;personal communications services networks;successful transmission probability;visitor location register;Analytical models;Base stations;Computer crashes;Computer science;Databases;Degradation;Fault tolerance;Mobile radio mobility management;Personal communication networks;Sun},
      doi = {10.1109/TWC.2007.05432},
      issn = {1536-1276}
    }
    

29. Chen, H., Xiao, Y., & Shen, X. (2006). Update-Based Cache Access and Replacement in Wireless Data Access. IEEE Transactions on Mobile Computing, 5(12), 1734–1748. https://doi.org/10.1109/TMC.2006.188

    @article{CHEN_1717441,
      author = {Chen, Hui and Xiao, Yang and Shen, Xuemin},
      journal = {IEEE Transactions on Mobile Computing},
      title = {Update-Based Cache Access and Replacement in Wireless Data Access},
      month = dec,
      year = {2006},
      volume = {5},
      number = {12},
      pages = {1734-1748},
      keywords = {cache storage;data communication;radio access networks;access-based replacement policies;cache access mechanism;cache hit ratio;call-back;least access-to-update difference;least access-to-update ratio;poll-per-read;update-based cache access;update-based replacement policies;wireless data access;wireless networks;Bandwidth;Broadcasting;Costs;Databases;Delay;Frequency;Land mobile radio cellular systems;Network servers;Wireless LAN;Wireless networks;Cache replacement policy;access;update;wireless network.},
      doi = {10.1109/TMC.2006.188},
      issn = {1536-1233}
    }
    

30. Xiao, Y., & Chen, H. (2006). Optimal callback with two-level adaptation for wireless data access. IEEE Transactions on Mobile Computing, 5(8), 1087–1102. https://doi.org/10.1109/TMC.2006.119

    @article{XIAO_1644752,
      author = {Xiao, Yang and Chen, Hui},
      journal = {IEEE Transactions on Mobile Computing},
      title = {Optimal callback with two-level adaptation for wireless data access},
      month = aug,
      year = {2006},
      volume = {5},
      number = {8},
      pages = {1087-1102},
      keywords = {cache storage;data communication;mobile radio;radio access networks;callback cache mechanisms;mobile terminals;optimal callback;push threshold;update-to-access-ratio;wireless data access;wireless networks;Analytical models;Bandwidth;Cost function;Handheld computers;Internet;Mobile computing;Network servers;Web server;Wireless application protocol;Wireless networks;Adaptive;cache;callback;strong consistency;wireless data access.},
      doi = {10.1109/TMC.2006.119},
      issn = {1536-1233}
    }
    

31. Chen, H., & Xiao, Y. (2006). Cache access and replacement for future wireless Internet. IEEE Communications Magazine, 44(5), 113–123. https://doi.org/10.1109/MCOM.2006.1637956

    @article{CHEN_1637956,
      author = {Chen, Hui and Xiao, Yang},
      journal = {IEEE Communications Magazine},
      title = {Cache access and replacement for future wireless Internet},
      month = may,
      year = {2006},
      volume = {44},
      number = {5},
      pages = {113-123},
      keywords = {Internet;cache storage;mobile radio;battery power consumption;cache access;cache replacement;future wireless Internet;wireless Internet caching;Access protocols;Bandwidth;Batteries;Communication system security;Internet;Markup languages;Transport protocols;Web server;Wireless application protocol;Wireless networks},
      doi = {10.1109/MCOM.2006.1637956},
      issn = {0163-6804}
    }
    

32. Xiao, Y., & Chen, H. (2006). Optimal periodic location area update for mobile telecommunications networks. IEEE Transactions on Wireless Communications, 5(4), 930–937. https://doi.org/10.1109/TWC.2006.1618942

    @article{XIAO_1618942,
      author = {Xiao, Yang and Chen, Hui},
      journal = {IEEE Transactions on Wireless Communications},
      title = {Optimal periodic location area update for mobile telecommunications networks},
      month = apr,
      year = {2006},
      volume = {5},
      number = {4},
      pages = {930-937},
      keywords = {3G mobile communication;telecommunication signalling;3GPP specifications;Universal Mobile Telecommunications System;failure call setup probability;initial trunk setup cost;mobile stations;mobile telecommunications networks;normal location area update;periodic location area update;signaling cost;3G mobile communication;Analytical models;Base stations;Batteries;Circuits;Computer science;Cost function;Databases;Land mobile radio cellular systems;Upper bound},
      doi = {10.1109/TWC.2006.1618942},
      issn = {1536-1276}
    }
    

33. Chen, H., Chiu, J.-M., Pujol, J., Kim, K., Chen, K.-C., Huang, B.-S., Yeh, Y.-H., & Chiu, S.-C. (2006). A Simple Algorithm for Local Earthquake Location Using 3D Vp and Vs Models: Test Examples in the Central United States and in Central Eastern Taiwan. Bulletin of the Seismological Society of America, 96(1), 288–305. https://doi.org/10.1785/0120040102

    Traditional local-earthquake location using a horizontally layered homogeneous velocity model is limited in its resolution and reliability due to the existence of frequently overlooked 3D complexity of the real Earth. During traditional 3D seismic tomography, simultaneous earthquake relocation using the resultant 3D velocity model has produced reliable earthquake locations; however, only a small subset of events are typically used and thus relocated in the inversion. The rest of the events in a catalog must then be relocated using the 3D models. The repeated calculation of travel times across 3D VP and VS models is also not efficient and not practical for a routine network earthquake location when the very time-consuming exact 3D raytracing is used. Because high-resolution earthquake data are now available from many modern seismic networks, representative high-resolution 3D VP and VS models for a region can be better determined. By taking advantage of recently available high-speed computer technology and large disk space, we implemented a simple algorithm to efficiently locate every local earthquake using the best available regional 3D VP and VS models. Once the VP and VS information for all cubic cells in a 3D grid model are determined, P and S travel times from each grid point to all seismic stations can be calculated and stored on disk files for later usage. During the iteration process for earthquake location, travel times from a trial hypocenter to all recording stations can be determined simply by a linear interpolation from those of the adjacent eight grid points available in the previously stored disk files without the need for raytracing. The iterations continue until the hypocenter adjustments at the end of the last iteration are below the given criteria and the travel-time residual, or the difference between the observed and the calculated travel times, is a minimum. Therefore, any local earthquake can be efficiently and reliably located using the available 3D velocity models. This simple location program has been applied to relocate earthquakes in the New Madrid Seismic Zone (nmsz) of the central United States and in the central eastern Taiwan region. Preliminary results in both regions reveal that earthquake hypocenters can be efficiently relocated in spite of the very significant lateral structural variations. Tests with data from Taiwan further demonstrate that the resolution of seismic tomography and the relocated seismicity is sensitive to relative distribution of seismic-network stations and background seismicity. Thus, this single-event location program can be applied to relocate all earthquakes in a seismic-network catalog and, more importantly, to allow routine earthquake location for any seismic network using the available 3D velocity models.

    @article{Chen01022006,
      author = {Chen, Hui and Chiu, Jer-Ming and Pujol, Jose and Kim, Kwanghee and Chen, Kou-Cheng and Huang, Bor-Shouh and Yeh, Yih-Hsiung and Chiu, Shu-Chioung},
      title = {A Simple Algorithm for Local Earthquake Location Using 3D {Vp} and {Vs} Models: Test Examples in the Central United States and in Central Eastern Taiwan},
      volume = {96},
      number = {1},
      pages = {288-305},
      year = {2006},
      doi = {10.1785/0120040102},
      url = {http://www.bssaonline.org/content/96/1/288.abstract},
      eprint = {http://www.bssaonline.org/content/96/1/288.full.pdf+html},
      journal = {Bulletin of the Seismological Society of America}
    }
    

34. Xiao, Y., Chen, H., & Guizani, M. (2006). Performance evaluation of pipeline paging under paging delay constraint for wireless systems. IEEE Transactions on Mobile Computing, 5(1), 64–76. https://doi.org/10.1109/TMC.2006.14

    @article{XIAO_1542017,
      author = {Xiao, Yang and Chen, Hui and Guizani, M.},
      journal = {IEEE Transactions on Mobile Computing},
      title = {Performance evaluation of pipeline paging under paging delay constraint for wireless systems},
      month = jan,
      year = {2006},
      volume = {5},
      number = {1},
      pages = {64-76},
      keywords = {paging communication;pipeline processing;telecommunication traffic;adaptive scheme;blanket paging scheme;cost minimization;multiple paging requests;optimization problems;paging delay constraint;performance evaluation;pipeline paging;sequential paging scheme;traffic load;wireless systems;Analytical models;Base stations;Cost function;Delay;Paging strategies;Personal communication networks;Pipeline processing;Quality of service;Telecommunication traffic;Telephony;Index Terms- Parallel;paging;pipeline;wireless systems.},
      doi = {10.1109/TMC.2006.14},
      issn = {1536-1233}
    }
    

35. Xu, Y., Liu, F., Liu, J., & Chen, H. (2002). Crust and upper mantle structure beneath western China from P wave travel time tomography. Journal of Geophysical Research: Solid Earth, 107(B10), ESE 4–1–ESE 4–15. https://doi.org/10.1029/2001JB000402

    @article{JGRB_JGRB12995,
      author = {Xu, Yi and Liu, Futian and Liu, Jianhua and Chen, Hui},
      title = {Crust and upper mantle structure beneath western China from P wave travel time tomography},
      journal = {Journal of Geophysical Research: Solid Earth},
      volume = {107},
      number = {B10},
      issn = {2156-2202},
      url = {http://dx.doi.org/10.1029/2001JB000402},
      doi = {10.1029/2001JB000402},
      pages = {ESE 4-1--ESE 4-15},
      keywords = {western China, crust and upper mantle, seismic tomography, lithospheric structure, continental collision},
      year = {2002}
    }
    

36. Xu, P., Liu, F., Ye, K., Wang, Q., Cong, B., & Chen, H. (2002). Flake tectonics in the Sulu orogen in eastern China as revealed by seismic tomography. Geophysical Research Letters, 29(10), 23–21–23–24. https://doi.org/10.1029/2001GL014185

    @article{GRL_GRL15417,
      author = {Xu, Peifen and Liu, Futian and Ye, Kai and Wang, Qingchen and Cong, Bolin and Chen, Hui},
      title = {Flake tectonics in the Sulu orogen in eastern China as revealed by seismic tomography},
      journal = {Geophysical Research Letters},
      volume = {29},
      number = {10},
      issn = {1944-8007},
      url = {http://dx.doi.org/10.1029/2001GL014185},
      doi = {10.1029/2001GL014185},
      pages = {23-1--23-4},
      year = {2002}
    }
    

37. Xu, P., Liu, F., Wang, Q., Cong, B., & Chen, H. (2001). Slab-like high velocity anomaly in the uppermost mantle beneath the Dabie-Sulu Orogen. Geophysical Research Letters, 28(9), 1847–1850. https://doi.org/10.1029/2000GL012187

    @article{GRL_GRL14132,
      author = {Xu, Peifen and Liu, Futian and Wang, Qingchen and Cong, Bolin and Chen, Hui},
      title = {Slab-like high velocity anomaly in the uppermost mantle beneath the Dabie-Sulu Orogen},
      journal = {Geophysical Research Letters},
      volume = {28},
      number = {9},
      issn = {1944-8007},
      url = {http://dx.doi.org/10.1029/2000GL012187},
      doi = {10.1029/2000GL012187},
      pages = {1847--1850},
      year = {2001}
    }
    

38. Sun, R., Liu, F., He, J., & Chen, H. (2001). Structural Setting of Strong Earthquakes in the Huabei Area of China. Pure and Applied Geophysics, 158(5-6), 903–918. https://doi.org/10.1007/PL00001212

    @article{sunruomei2001,
      year = {2001},
      issn = {0033-4553},
      journal = {pure and applied geophysics},
      volume = {158},
      number = {5-6},
      doi = {10.1007/PL00001212},
      title = {Structural Setting of Strong Earthquakes in the Huabei Area of China},
      url = {http://dx.doi.org/10.1007/PL00001212},
      publisher = {Birkhäuser Verlag},
      keywords = {Key words: Strong earthquake, tomography, velocity structure, Huabei area.},
      author = {Sun, R. and Liu, F. and He, J. and Chen, H.},
      pages = {903-918},
      language = {English}
    }