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CLOUD COMPUTING 2014 Proceedings
CLOUD COMPUTING 2014 The Fifth International Conference on Cloud Computing, GRIDs, and Virtualization ISBN: 978-1-61208-338-4 May 25 - 29, 2014 Venice, Italy CLOUD COMPUTING 2014 Editors Wolf Zimmermann, Martin-Luther University Halle-Wittenberg, Germany Yong Woo Lee, University of Seoul, Korea Christoph Reich, Furtwangen University, Germany 1 / 142 CLOUD COMPUTING 2014 Foreword The Fifth International Conference on Cloud Computing, GRIDs, and Virtualization (CLOUD COMPUTING 2014), held between May 25-29, 2014 in Venice, Italy, was intended as an event to prospect the applications supported by the new paradigm and validate the techniques and the mechanisms. A complementary target was to identify the open issues and the challenges to fix them, especially on security, privacy, and inter- and intra-clouds protocols. We take here the opportunity to warmly thank all the members of the CLOUD COMPUTING 2014 Technical Program Committee, as well as all of the reviewers. The creation of such a high quality conference program would not have been possible without their involvement. We also kindly thank all the authors who dedicated much of their time and efforts to contribute to CLOUD COMPUTING 2014. We truly believe that, thanks to all these efforts, the final conference program consisted of top quality contributions. Also, this event could not have been a reality without the support of many individuals, organizations, and sponsors. We are grateful to the members of the CLOUD COMPUTING 2014 organizing committee for their help in handling the logistics and for their work to make this professional meeting a success. We hope that CLOUD COMPUTING 2014 was a successful international forum for the exchange of ideas and results between academia and industry and for the promotion of progress in the areas of cloud computing, GRIDs and virtualization. -
Urer Lead Organization 3K Computers Acer Acer Acer Airis Aleutia Aleutia
Brazil State University of São Computer Technology Link Computer Technology Link Elitegroup Computer Lead Organization 3K Computers Acer Acer Acer Airis Aleutia Aleutia Allied Computers Int'l AMD Astone (Achieva Limited) ASUSTek ASUSTek Paulo "Julio de Mesquita Aware Electronics Bestlink Blue Digital Systems CherryPal Comes S.A. CompuLab CZC Hn1 China Government (Intel) dataEVOLUTION Dell Dell Dell Dell Dell DTK Computer DTK Computer Elonex Everex Everex Everex Fukato GeCube Great Wall A81 Hacao Hasee HCL Infosystems Limited HCL Infosystems Limited HCL Infosystems Limited (CTL) (CTL) Systems (ECS) Filho" (UNESP-Bauru) 3K RazorBook 400-Mini- Personal Internet Asus Eee PC (2G Surf/ 4G 2go Classmate PC / Intel CTL DreamBook IL1 (I'd Love Dell Mini Inspiron 910 datacask jupiter GECUBE Multimedia2GO HCL MiLeap X-series (Next Device Aspire One Acer Aspire X1200-U1520A Acer Slim Gemstone Airis Kira 100 (aka 740) Aleutia E1 Mini Computer Aleutia E2 Mini Computer ACi Ethos 7 (ACi Ultra Mini) Astone UMPC CE-260 Asus Eee Box B202 mini PC Cowboy A-Pad Convertible Table Bestlink Alpha-400 Deep Blue H1 CherryPalCloud Aristo Pico 640 CompuLab fit-PC CZC Hn1 ChangFeng PC "Farmer PC" decTOP EC 280 Dell Vostro A100 and A180 Dell Vostro A840 and A860 Dell Vostro 1000/1500/1510 Cruiser 5015 DTK eBook i10 ECS G10IL / J-Series Elonex One Everex Cloudbook / CE1200V Everex gBook VA1500V Everex TC2502 gPC / gPC2 Great Wall A81 Hacao Classmate Hasee Q540X HCL Ezeebee Pride HCL MiLeap X-series Notebook PC Communicator (PIC) Surf/ 4G/8G/minibook) Classmate 2 PC -
The Android Update Problem: an Empirical Study
The Android Update Problem: An Empirical Study Mehran Mahmoudi and Sarah Nadi University of Alberta, Edmonton, Alberta {mehran,nadi}@ualberta.ca ABSTRACT vendors are able to access Android’s source code, and can imple- Many phone vendors use Android as their underlying OS, but often ment their own device specifications and drivers [1]. Since Android extend it to add new functionality and to make it compatible with is open source, phone vendors can add their own enhancements, their specific phones. When a new version of Android is released, including new hardware capabilities and new software features. phone vendors need to merge or re-apply their customizations and When a new version of AOSP is released, phone vendors need to changes to the new release. This is a difficult and time-consuming obtain the new version and re-apply their modifications to it. Due to process, which often leads to late adoption of new versions. In this the complexity of this task, the majority of devices that use Android paper, we perform an empirical study to understand the nature may not run on the most recent version right away. Based on data of changes that phone vendors make, versus changes made in the collected by Google in July 2017 [4], 27% of Android-based devices original development of Android. By investigating the overlap of run an Android version that is at least three years old, which is different changes, we also determine the possibility of having auto- especially problematic for security updates [39, 40]. mated support for merging them. We develop a publicly available The process of re-applying changes from an independently mod- tool chain, based on a combination of existing tools, to study such ified version of Android to a newer version of Android is atime- changes and their overlap. -
An Empirical Investigation of Software Merging Challenges
An Empirical Investigation of Software Merging Challenges by Mehran Mahmoudi A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science Department of Computing Science University of Alberta ⃝c Mehran Mahmoudi, 2018 Abstract With the rise of distributed and global software development, branching has become a popular approach that facilitates collaboration between software developers. Similarly, forking, the practice of cloning an entire repository and creating an independently modified variant of it, is also common. One of the biggest challenges that developers face when employing these practices is dealing with integration problems such as merge conflicts. Conflicts occur when inconsistent changes happen to the code. Resolving these conflicts can be a cumbersome task as it requires prior knowledge about the changes in each of the versions that are going to be merged. In this thesis, we investigate merge conflicts in different integration contexts to understand what causes them, and we identify possible directions to help developers in the integration process. We perform two empirical studies, each with a different focus. In our first empirical study, we focus on understanding the integration chal- lenges and improvement opportunities in independently modified variants of a repository. As a case study, we investigate the Android operating system and a community-based variant of it, LineageOS. We analyze changes made in LineageOS versus changes made in the original development of Android. By investigating the overlap of different changes, we also determine the possibility of having automated support for merging them. Our findings show that 83% of subsystems modified by LineageOS are also modified in the next release of Android.