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It is our great pleasure to welcome you to the 10th ACM Conference on Web Science, Amsterdam, 27-30 May 2018. This year's edition of the WebSci conference (WebSci'18) celebrates the ten year anniversary of the unique conference series where a multitude of disciplines converge in a creative and critical dialogue with the aim of understanding the Web and its impacts. The WebSci conference brings together researchers from multiple disciplines, like computer science, sociology, economics, information science, anthropology and psychology. Web Science is the emergent study of the people and technologies, applications, processes and practices that shape and are shaped by the World Wide Web. Web Science aims to draw together theories, methods and findings from across academic disciplines, and to collaborate with industry, business, government and civil society, to develop our knowledge and understanding of the Web: the largest socio-technical network in human history. This year we were very pleased to receive 113 submissions for the regular research track. Given the high quality of submissions, it has been a hard job to decide which of the contributions to select for the conference. We are grateful for the support of the Program Committee which consisted of 10 senior members and 35 regular members. All PC members worked hard, based on which we could select an interesting, varied, exciting program comprising 30 long and 15 short papers.

An enthusiastic welcome to the 2018 ACM SIGSIM Conference on Principles of Advanced Discrete Simulation (PADS 2018), the 32nd for the PADS series, which this year is held in Rome. Building on its long successful history, this year the conference attracted high quality submissions on a range of topics on modelling and simulation. In total, forty six (46) submissions were submitted, thirty three (33) as regular papers and thirteen (13) as short papers. Following the rigorous double blind reviewing tradition of PADS, every paper received at least three (3) reviews. All papers and their reviews were then discussed extensively at a Programme Committee meeting that took place on the 2nd of March, 2018. Based on the deliberations of the Programme Committee, fifteen (15) papers were finally accepted as regular papers and eight (8) as short papers. Three (3) regular papers were conditionally accepted and were assigned to three shepherds respectively, who supervised their revision to a successful outcome. PADS has a long tradition of embracing the work of early career researchers as well as new ideas and cutting edge research which is in progress. A PhD Colloquium and a Poster session will showcase these exciting ideas. A significant recent development is the participation of PADS in the ACM Reproducibility Initiative. Evaluation of artifact and results replication was handled by a separate Reproducibility Committee. From the originally submitted papers, sixteen (16) regular and five (5) short papers opted for reproducibility evaluation, which is a very encouraging sign and suggests that our community is embracing this important initiative. From the finally accepted papers, five (5) regular and five (5) short have been further evaluated for reproducibility. Four (4) papers that ranked most highly by the reviewers were nominated for the Best Paper Award and were further considered by a panel to select the best paper for PADS 2018. The nominees, in no particular order, are:Fast-Forwarding Agent States to Accelerate Microscopic Traffic Simulations, by Philipp Andelfinger, Yadong Xu, Wentong Cai, David Eckhoff and Alois KnollComparing Dead Reckoning Algorithms for Distributed Car Simulations, by Youfu Chen and Elvis S. LiuPorting Event &Cross-State Synchronization to the Cloud, by Matteo Principe, Tommaso Tocci, Alessandro Pellegrini and Francesco QuagliaSimulation Study to Identify the Characteristics of Markov Chain Properties, by Atiqur Rahman and Peter Kemper

The ASPLOS'18 program is the result of a thorough evaluation process, which we started by forming the program committee (PC) with 50 members and the external review committee (ERC) with 73 members. Moreover, we split up the PC into two independent sub-PCs while keeping the ERC as a single unit. We carefully assigned the PC members to the two groups, ensuring that (1) each sub-PC would cover all ASPLOS topics and (2) the experts on each topic would be evenly split across the sub-PCs. In response to the call for papers, we received 319 submissions, just one shy of last year's record. (This number includes 18 submissions that were either withdrawn by their authors or desk-rejected for clear violations of the formatting rules.) After receiving reviewing bids from most committee members, we also split the submissions evenly across the two sub-PCs, so that each submission would receive reviews from only one sub-PC. We manually moved submissions across sub-PCs to maximize reviewer expertise, according to the PC members' bids. The review process proceeded in two rounds, followed by an extensive online discussion period. During the first round, all submissions received 3-4 reviews. Based on these reviews, we selected 158 submissions to go through the second round of reviews, which produced 2-4 additional reviews for these submissions. During the review process, we also requested reviews from 52 external experts on a case-by-case basis. Throughout the process, our main goal in assigning reviewers to submissions was to maximize reviewer expertise. Overall, the committees and external experts produced 1,227 reviews. After the online discussion period involving all reviewers, we selected 100 submissions for discussion (15 papers online-tagged tentative-accepts and 85 papers online-tagged discuss-at-meeting) during the PC meeting on November 10, 2017 at Georgia Tech. 47 of the 50 PC members were physically present at the meeting and 2 others participated remotely. The whole committee met together in the morning, and split up into the two independent sub- PCs in the afternoon. We did not set a limit for the number of accepted submissions. During the meeting, we accepted 47 submissions and conditionally accepted (subject to shepherding) 9 others. After carefully addressing the reviewers' comments, all shepherded submissions were ultimately accepted. The acceptance rate of the two sub-PCs was exactly the same: 28/151 and 28/150. To complete the program, we invited two outstanding keynote speakers: Hillery Hunter (IBM Research) and Fred Chong (University of Chicago). We are pleased that the 56 accepted submissions and 2 keynote talks represent an exciting spectrum of traditional and emerging ASPLOS topics.

It's our great pleasure to welcome you to the 2018 ACM International Conference on Intelligent User Interfaces (IUI 2018), held in Tokyo from 7-11 of March. This is the twenty-third IUI conference, continuing its tradition of being the main international forum for reporting outstanding research at the intersection of Human Computer Interaction (HCI) and Artificial Intelligence (AI). The work that appears at IUI bridges these two fields and delves also into related fields, such as psychology, cognitive science, computer graphics, the arts, and others. Members of the IUI community are interested in improving the symbiosis between humans and computers, and in making systems adapt to humans rather than the other way around. The program of IUI 2018 reflects the growth of the Intelligent User Interfaces research community. The calls for contributions attracted 297 full and short paper submissions from all over the world (a record number for the IUI conference series), 127 submissions of posters and demos, and 22 submissions to the student consortium. The conference committee accepted 68 papers (43 long papers and 25 short papers), covering a diverse range of topics, as reflected in the conference session titles. The conference program also includes 35 posters, 30 demos, and 11 student consortium papers. Building on the tradition of collaboration of IUI with ACM TiiS journal, 4 papers that were published by the journal in 2017 will be presented at the conference and selected papers presented at the conference will be invited to submit extended versions to the journal. In addition, IUI 2018 will feature 7 workshops on topics related to Intelligent User Interfaces. One of the main features of the conference are the 3 keynote talks. James A. Landay from Stanford University will open the conference with a keynote talk entitled From On Body to Out of Body User Experience. Following this, Masataka Goto from the National Institute of Advanced Industrial Science and Technology (AIST) will present his talk Intelligent Music Interfaces. Finally, Jennifer Golbeck from the University of Maryland will present her talk Surveillance or Support: When Personalization Turns Creepy. IUI 2018 will also feature the second edition of the lasting Impact Award, celebrating an impactful paper presented at one of the past editions of IUI. A novel aspect of IUI 2018 will be its co-location with IPSJ Interaction 2018, the leading domestic HCI conference in Japan. The two conferences will be held in the Hitotsubashi Hall and will be scheduled back-to-back, allowing the participants of one conference to also take part in the other. The two conferences will have a shared day that will feature the keynote talk of James A. Landay and a shared interactive poster/demo session. This co-location of the conferences will expose IUI to the local research community and hopefully attract new participants. We thank the IPSJ (Information Processing Society in Japan), and especially the five special-interest groups that organize IPSJ Interaction: IPSJ SIG-HCI, SIG-GN, SIG-UBI, SIG-EC and SIG-DCC. Without their immense help, this co-location would not have been possible. We also thank SIGCHI for their funding for Internationalisation, Diversity and Inclusion events at SIGCHI Sponsored Conferences to support this co-location.

We are delighted to welcome you to the 2018 ACM International Symposium on Field-Programmable Gate Arrays (ACM FPGA 2018). ACM FPGA is the premiere forum for the presentation of new and exciting research on all aspects of FPGA technology, which include: Novel FPGA architectures and circuitsAdvances in CAD tools for FPGAs, in areas such as technology mapping, placement, routing, and others.High-level design methodologies that permit FPGA design at higher levels of abstraction.New applications for FPGAs, particularly their use as accelerators for achieving higher computational throughput and energy efficiency. Aside from the technical sessions, the conference provides the opportunity for FPGA researchers and practitioners from around the world to connect with long-time friends, meet new ones, and network with one another in beautiful Monterey, California, famous worldwide for its spectacular coast, Fisherman's Wharf, and Cannery Row. This year we received 116 submissions, of which 26 were accepted as full research papers (10 pages) to appear in the main conference or the pre-conference special-session on deep learning, and 4 papers were accepted as short research papers (6 pages). All full and short papers appear in these proceedings. In addition, 31 submissions were selected to be presented as posters; abstracts of these appear in these proceedings. At FPGA 2018, we continue to see an emphasis on the two themes causing tremendous interest in the FPGA industry: 1) the potential role for FPGAs in deep learning, and 2) the recent introduction of FPGAs in the cloud by increasing numbers of large companies, including Microsoft, Amazon, Baidu, Alibaba, Huawei, IBM and others. The panel discussion, at the Monday evening banquet, will consider whether FPGAs (as opposed to GPUs and CPUs) will ultimately succeed in becoming a widespread computing platform for deep learning. We expect a lively exchange among the panelists! The symposium kicks off with back-to-back Sunday morning workshops on cloud-deployed FPGAs, and a parallel workshop session on using FPGAs for packet processing as specified in the P4 language. Sunday afternoon will focus on how FPGAs can be used for deep learning, with both invited presentations and research presentations. The use of low computational precision will figure prominently in the deep-learning research presented.

Welcome to the 49th SIGCSE Technical Symposium on Computer Science Education (the 2018 Symposium), the premiere technical conference for computer science educators. The 2018 Symposium is sponsored by the ACM Special Interest Group on Computer Science Education (SIGCSE). SIGCSE is an organization of about 2700 members from more than 70 countries interested and engaged in computer science education. One of the strengths of SIGCSE is the dedication of its members who volunteer to ensure that the activities and events held throughout the year are successful. There are two volunteers in particular who worked very hard to bring the 2018 Symposium to life. Conference co-chairs Tiffany Barnes and Dan Garcia have spent countless hours over the past two years ensuring that the (hopefully around) 1500 attendees at the 2018 Symposium will have a rewarding and inspiring experience. They have led a committee of nearly 100 people in the process of creating an engaging and innovative program, creating opportunities for networking, and handling all the issues big and small that come with a conference of this size. On behalf of the SIGCSE organization and Board, I thank Tiffany and Dan for their hard work and vision that made this conference possible. This conference also provides us with a chance to honor two people each year for their contributions to computer science education and the SIGCSE community. The annual SIGCSE award for Outstanding Contribution to Computer Science Education will be given to Tom Bell. Bell is best known as the primary author of the CS Unplugged Project, which produced a set of free computer science learning activities that do not use a computer or require programming. His work has influenced many computing educators working to bring computer science to students in schools in many countries around the globe, and it is likely that the impact of his work will be felt for decades to come. The annual SIGCSE award for Lifetime Service will be given to Eric Roberts. Roberts has too many accomplishments to list here, but they include chairing the ACM SIGCSE Java Task Force, serving on the ACM Education Board for nearly 20 years, and continuing to serve on the ACM Education Council. Roberts has earned many awards for his work, including a previous award for Outstanding Contribution to Computer Science Education, making him one of the few people to earn both SIGCSE awards. Please join me and the rest of the SIGCSE Board in congratulating both of them on their well-deserved awards. The 2018 Symposium will offer you many opportunities to network, whether at sessions, during breaks, at the social events associated with the conference, or simply as you meet people in the halls. I hope that some of the people you will get a chance to talk to will be the members of the SIGCSE Board. Your input and feedback about SIGCSE is important to us, and we want to hear from you. One opportunity to see the Board members will be at the SIGCSE Business meeting on Friday, February 23rd from 5:10 pm to 6 pm in room 308 in the convention center. At this annual meeting we will discuss the overall structure of the SIGCSE organization and share the results of the many SIGCSE projects and events that have been carried out during the past year.

We are delighted to welcome you to the nineteenth edition of the International Workshop on Mobile Computing Systems and Applications -- HotMobile '18. This year continues the tradition of selective, highly interactive workshops that discuss the latest ideas in mobile systems and applications, along with new breakthroughs in underlying technologies. In addition to the technical program and keynote speakers, the program is designed to continue the HotMobile tradition of engaging the audience in deep technical discussions and debates of controversial approaches. The selection of full papers to this workshop was highly competitive. Out of 65 submissions, the technical program committee accepted 19 for publication and presentation, resulting in an acceptance rate of 29%. An in-person PC meeting was held at the Stony Brook University to make final acceptance decisions. The PC members demonstrated a strong commitment to the selection process, not only by submitting high-quality reviews, but by traveling to New York from locations all over the world, including Singapore, Germany, and France. Accompanying full papers are a set of posters and demonstrations of exciting early stage research from the community. Collectively our program spans a rich range of topics including mobile DNA analysis, virtual reality, self-driving cars, new sensing technologies, and the Web. We feel this reflects the strong health, vibrancy and breadth of the mobile computing field.