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CoLISD 2012 : Collective Learning and Inference on Structured Data

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Link: http://www.cse.iitm.ac.in/CoLISD/CoLISD.html
 
When Sep 28, 2012 - Sep 28, 2012
Where ECML PKDD 2012, Bristol, UK
Submission Deadline Jul 27, 2012
Notification Due Aug 10, 2012
Final Version Due Aug 24, 2012
Categories    collective learning   collective classification   SRL   structured prediction
 

Call For Papers

Classical ML techniques assume the data to be iid, but the real world data is inherently relational and can generally be represented using graphs or some variants of them. The importance of modelling structured data is evident from its increasing presence: WWW, social networks, organizational network, image, protein sequence, relational data etc. This field has been recently receiving a lot of attention in the community under different themes depending on the problem addressed and the nature of solution. Researchers in different areas have proposed very useful and successful frameworks:

* Iterative collective classification involves use of a local classifier that embeds the node's own attributes and neighbours information in a feature vector, and classifies the nodes in an iterative procedure.

* Statistical relational learning combines statistics (uncertainty) and relational information (first order logic) to model the target domain.
Structured prediction involves machine learning techniques for structured objects which embeds the relationship between output classes.

* Regularization based framework poses the local smoothness constraint on the structured data i.e., uses it as a constraint or side-information.

* Kernel methods for structured data deals with developing similarity functions for objects of a domain that can handle relationship between objects, for example a tree, as well as heterogeneous representations.

* Message passing techniques such as belief propagation, loopy belief propagation, mean field relaxation labelling on networks.

Learning with network data involves many building blocks:

* How to build the relationship network.
* How to learn the prediction model (classification/regression) with fully supervised or partially supervised data.
* How to use the learnt model for inference on fully unlabeled or partially labelled data.
* How to manipulate the relational information to reduce the computational cost, such as lifted probabilistic inference in SRL.

There is huge research progress on these subtasks in each area individually. Also, workshops are held for each field such as SRL, ILP, StarAI, GBR, GDM. Collective inference is a common factor to all these subtasks, and notably it has attained huge progress in individual areas. Some of the future/past workshops on collective inference include "CVPR WS on Inference in Graphical Models and Structured Potentials", "Propagation Algorithms on Graphs with Cycles: Theory and Applications", "Approximate inference-How far have we come?", "Approximate Learning of Large Scale Graphical Models: Theory and Applications". We believe the current situation provides us with an opportunity for attempts at synthesis, forming a common core of problems and ideas, and crosspollinating across subareas. There have been few attempts, and a notable success in the MLG series. MLG addresses all general aspects of mining and learning with graphs, whereas CoLISD focuses on the within-network learning and inference tasks with special emphasis on collective inference. Inspired by the success of MLG, this workshop will attempt to reach out to different groups which work on the same theme and to explore together how to reach the goals w.r.t within-network learning and inference for each subfield mentioned above.

Following up on the successful conduct of the CoLISD workshop last year at ECML PKDD, we propose to organize the second edition of the workshop this year. The first edition of the workshop succeeded in bringing together researchers from various communities who look at different aspects of learning with structured data. For many of the participants it was the first time they were seriosuly looking at approaches from other disciplines. The wide spread feeling was that the workshop should be continued since there was scope for much crossfertilization. We are currently working on a special issue of MLJ based on the outcome of the first workshop.

Technical original research papers and position papers (12 pages LNCS) on each of the topics are invited for submission on or before 27th July 2012.

Potential topics include (but are not limited to):
* Collective Learning
* Collective inference
* Representation of structured data : for example, embedding a node's attributes and neighboring nodes'
class distribution information as a flat vector
* Cross-domain applications
* Comparison study aimed at exploring commonality and differences between topics mentioned above

Invited Speakers
Charles Sutton, University of Edinburgh
Sebastian Riedel, University of Massachusetts, Amherst
Christopher Ré, University of Wisconsin-Madison

Submission Instructions
The papers must be written in English and formatted according to the Springer-Verlag Lecture Notes in Artificial Intelligence guidelines. Authors instructions and style files can be downloaded at: http://www.springer.de/comp/lncs/authors.html. The maximum length of papers is 12 pages in this format. Submissions must be made through EasyChair system at https://www.easychair.org/conferences/?conf=colisd2012.

Organisers
* Balaraman Ravindran, Dept of CSE, IIT Madras
* Kristian Kersting, Dept. of Knowledge Discovery , Fraunhofer IAIS
* Sriraam Natarajan, Wake Forest University Baptist Medical Center

Local Organiser
* S. Shivashankar, Ericsson R&D, Chennai

Program Committee
Annalisa Appice, Università degli Studi di Bari
Mustafa Bilgic, Illinois Institute of Technology
Joschka Boedecker, Osaka University
Ulf Brefeld, Yahoo Research, Barcelona, Spain
Michelangelo Ceci, Università degli Studi di Bari
Janardhan Rao Doppa, Oregon State University
Saket Joshi, Oregon State University
Sofus A. Macskassy, University of Southern California
Oliver Obst, CSIRO ICT Centre
Scott Sanner, Australian National University

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