Keynote Speakers' Information:

Talk Title: User Stance Prediction via Online Behavior Mining
Nowadays social media, such as Twitter and all kinds of online forums, becomes a platform where people can express their opinions implicitly or explicitly. For example, in Twitter, people follow people they trust, and retweet the tweets they agree. In online forums, such as, people explicitly express their opinions and interact with each other using text. Our goal is to understand people's stance on some (political) issue according to their online behaviors that can be captured in social media, including links they have issued and content they have generated, which is essential for national security and policy making. Existing attempts in this direction, however, oversimplified the problem in several aspects. First, they usually treat the user stance prediction problem as a binary classification problem, e.g., left or right, or positive or negative, while the extent of people's attitude is very critical. Second, most of the existing work depends heavily on labels, which is unacceptable for large-scale social media data and impossible to label when user stance is modeled as a numerical number. Third, most of the methods do not attempt to understand the rationality behind their online behaviors. In contrast, (1) our proposed methods can predict user stance in terms of numerical values; (2) our methods are unsupervised methods and no labels are required for the analysis; and (3) the models are carefully designed with the consideration of human rationality of their choices. In particular, two specific user stance prediction problems will be included in this keynote: (1) political ideology detection for ordinary twitter users via their heterogeneous types of links; and (2) user stance prediction in news commenting system. These methodologies may benefit more applications ranging across a wide spectrum of domains.

Dr Yizhou Sun is an assistant professor at department of computer science of University of California, Los Angeles. Prior to that, she was an assistant professor in the College of Computer and Information Science of Northeastern University. She received her Ph.D. in Computer Science from the University of Illinois at Urbana-Champaign in 2012. Her principal research interest is in mining information and social networks, and more generally in data mining, machine learning, and network science, with a focus on modeling novel problems and proposing scalable algorithms for large-scale, real-world applications. She is a pioneer researcher in mining heterogeneous information networks. Yizhou has over 70 publications in books, journals, and major conferences. Tutorials on mining heterogeneous information networks and its applications have been given in several premier conferences, including EDBT 2009, SIGMOD 2010, KDD 2010, ICDE 2012, VLDB 2012, ASONAM 2012, ACL 2015, and the upcoming WWW 2017. She received 2012 ACM SIGKDD Best Student Paper Award, 2013 ACM SIGKDD Doctoral Dissertation Award, 2013 Yahoo ACE (Academic Career Enhancement) Award, 2015 NSF CAREER Award, and 2016 CS@ILLINOIS Distinguished Alumni Educator Award.

Talk Title: Beyond Understanding and Prediction - Data Mining for Action
Association analysis and prediction are two major tasks in data mining, and they represent two foremost objectives: data exploration for understanding and model construction for prediction. Data mining is known as a process to convert raw data to useful information --- knowledge. However, what do we do with the knowledge discovered from data? We will need knowledge to enable actions, such as preventing diseases in health care, taking actions to retain customers, and etc. One important attribute of knowledge is actionability. In order to be acted on, the knowledge must encode causal relationships to imply the mechanisms of the systems under consideration. Causal inference is a sophisticated topic that spans multiple disciplines, computer science, statistics, medicine, economics, and social science, to name a few. There are a number of well-established frameworks for causal inference in data with assumptions. Unfortunately, the assumptions are not directly testable in data, and hence there are limited off-the-shelf data mining methods for causal discovery. Many practitioners still use conventional machine learning methods for the tasks which actually requires causal inference ... ...

Dr Jiuyong Li is a Professor and an Associate Head of School at the School of Information Technology and Mathematical Sciences of University of South Australia. He leads the Data Analytics Group in the School. His main research interests are in data mining, bioinformatics, and data privacy. He has led six Australian Research Council Discovery projects and a Data to Decision CRC project. He has published more than 100 papers, mostly in leading journals and conferences in the areas. He has been a chair (or a PC chair) of multiple Australasian data mining and artificial intelligence conferences and actively serving PC (and senior PC) member for many international conferences in data mining. He has received senior visiting fellowships from Nokia Foundation, the Australian Academy of Science, and Japan Society of Promotion of Science.

Talk Title: Five Challenges Related to Social Media
Social media have been around a long time, at least in technology terms. Facebook is 13 years old and Twitter 11 years old! There is no denying social media's impact and their significance has grown commercially, Facebook's market capitalization is $387 billion. To put this in perspective, BHP has a capitalization of $132 billion. However, with many younger people there is a trend to switch off social media because it takes up too much time and they are annoyed by firms using personal data for their own ends. So the first challenge (for firms) is how do they engage with people via social media on an ethical basis? It seems many firms are struggling with this and some ignoring it. Using social media data as part of a business intelligence approach seems a good and profitable thing to do but not if it exploits the personal data of internet users. This gap is being addressed by the concept of authenticity where firms take a values based approach that applies also to social media use. This leads to a second challenge, how do firms develop and maintain an authentic approach and what will this look like in the social media space? Authenticity, or being true to oneself, might mean that if social media is said to be used to improve customer service, then it does that and perhaps not as a method to simply reduce costs. A major challenge for firms is to develop a coherent rationale for using social media. Social media can be used ... ...

Dr Craig Standing is a Foundation Professor of Strategic Information Management in the School of Business and Law. He is Co-Leader of the Centre for Innovative Practice and Member of the Faculty Board and Research and Higher Degrees Committee. Craig studied at Lancaster University, University of Manchester, and the University of Western Australia. He has published in the top ten Information Systems journals and has presented at many international conferences. He has obtained significant research funds including the prestigious Australian Research Council Awards. Craig has authored several books on information systems that have been adopted by university courses in information systems. He has supervised numerous doctoral students, having won awards from the postgraduate association at his university for the quality of his supervision. As Editor of the Journal of Systems and Information Technology, Craig is at the forefront of knowledge on information systems research and research methods.

Latest News:

  • We have accepted 11 full research papers and 4 short research papers.

    Please find the information in Workshop Program

  • Invitation Letter for Applying for Visa

    Please contact Daniela Dwyer (appointed conference secretariat of WWW 2017) by daniela dot dwyer at Telephone: 08 9389 1488, Fax: 08 9389 1499

  • Copyright form should be submitted through the link provided from the email

    Camera ready version should be uploaded throught the link provided from the email

    The due date is this Thursday Feb 23rd, 2017. Please contact ASAP if you haven't got these emails.

  • Instruction of Preparing Camera Ready Version!

    1. Camera ready version of Workshop paper (long or short) has been extended by Feb 23!

    2. Workshop paper (long or short) is limited by 10 pages (9 + 1 reference page), and Demo paper by 5 page limit!

    3. The ACM have recently changed their proceedings templates but after some confusion we have been asked to NOT use the new 2017 templates. So all WWW 2017 material should use the old templates as per the instructions on the Sheridan page.

    4. Further information including camera-ready submission site and copyright form will be announced once we get instructions from the WWW organizers!

  • Approved WWW Journal Support!

    The best papers in this workshop will have chance to be selected and recommended to publish in the top international journal - World Wide Web: Internet and Web Information System. WWW Journal is a SCI cited journal and the 2015 Impact Factor is 1.539. Thanks the strong support from Editors-in-Chief of WWW Journal.

  • Submission due was extended!

    Due to many requests, we extended the Abstract submission due to 8th January 2017 and the full paper submission due to 15th January 2017.

  • Workshop date was changed from 3rd April 2017 (Monday) to 4th April 2017 (Tuesday)!

    The WWW committee has confirmed and scheduled this workshop on the second day of the WWW conference - 4th April 2017!

  • Submission website is up at November 29, 2016!

    Follow this link:

Workshop Information:

The goal of this workshop is to invent new techniques and approaches to explain user-to-user relationships in physical world based on their cyber information, e.g., social connections, online behaviors and disclosed location information in large social networks. The cast from cyber to physical world can help industries to extract and build their invaluable knowledge base and improve their business service quality, especially when the data is big and complex. The workshop will encourage researchers to invent efficient data processing techniques to discover invaluable knowledge. We would like to trigger researchers and practitioners to think more questions. E.g., What about the advantages and disadvantages of existing techniques or approaches? How to evaluate them? What the existing and potential challenges in this area. Thus, our goal is to bring together researchers and practitioners from around the world in database system, data mining, online analytical processing (OLAP), big data, graph processing, distributed and parallel processing, machine learning communities interested in (1) cloud computing/parallel data processing, (2) advanced index and algorithms, (3) quality model and metric of data mining, (4) short text processing in information retrieval, (4) building models and frameworks for evaluating the designed approaches.

This workshop is co-organised with the 26th International World Wide Web Conference WWW2017.

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