Twenty-Sixth AAAI Conference on Artificial Intelligence

(AAAI-12)Workshop Program

July 22–23, 2012Toronto, Ontario

Canada

Sponsored byAssociation for the

Advancement of Artificial Intelligence2275 East Bayshore Road, Suite 160, Palo Alto, CA 94303

650-328-3123650-321-4457 (fax)

workshops12@aaai.orgwww.aaai.org

author kit (www.aaai.org/Publications/Templates/Au-thorKit.zip).

AAAI Workshop ChairsMichael Beetz Technische Universität München, Germanymichael.beetz@in.tum.de

Holger H. Hoos University of British Columbia, Canadahoos@cs.ubc.ca

Contents¶ W1: Activity Context Representation: Tech-

niques and Languages¶ W2: AI for Data Center Management and Cloud

Computing¶ W3: Cognitive Robotics¶ W4: Grounding Language for Physical Systems¶ W5: Human Computation¶ W6: Intelligent Techniques for Web Personaliza-

tion and Recommendation¶ W7: Multiagent Pathfinding¶ W8: Neural-Symbolic Learning and Reasoning¶ W9: Problem Solving Using Classical Planners¶ W10: Semantic Cities

(e photographs used in this brochure are copy-righted and may not be reused without permission.)

AAAI is pleased to present the AAAI-12 WorkshopProgram. Workshops will be held Sunday and Mon-day, July 22–23, 2012 at the Sheraton Centre TorontoHotel in Toronto, Ontario, Canada. Exact locationsand dates for the workshops will be determined in thespring. e AAAI-12 workshop program includes 10workshops covering a wide range of topics in artificialintelligence. Workshops are one day unless noted oth-erwise in the individual description. Each workshop islimited to approximately 25 to 65 participants. Partic-ipation at these workshops is by invitation from theworkshop organizers. All workshop participants mustpreregister, and indicate which workshop(s) they willbe attending. Please note that there is a separate regis-tration fee for attendance at a workshop. Workshopregistration is available for workshop only registrantsor for AAAI-12 technical registrants at a discountedrate. Registration information will be mailed directlyto all invited participants. A workshop report CD isincluded in the workshop registration fee, and will bedistributed onsite during the workshop. In most cases,workshop papers will also be available aer the con-ference as part of the AAAI Press technical report se-ries.

Submission RequirementsSubmission requirements vary for each workshop, butkey deadlines are uniform. Submissions are due to theorganizers on March 30, 2012 (please check individualworkshop websites for extensions). Workshop orga-nizers will notify submitters of acceptance by April 20,2012. Camera-ready copy is due to AAAI by May 16,2012 (firm deadline). Please submit your papers di-rectly to the individual workshop according to theirdirections. Do not mail submissions to AAAI. For fur-ther information about a workshop, please contact thechair of that workshop.

FormatAAAI two-column format is oen required for work-shop submissions, and is always required for all finalaccepted submissions. Links to styles, macros, andguidelines for this format are included in the AAAI-12

2 AAAI-12 WORKSHOPS

Deadlinesn March 30: Submissions due (unless noted otherwise)n April 20: Notification of acceptancen May 16: Camera-ready copy due to AAAIn July 22–23: AAAI-12 Workshop Program

AAAI Formaing Guidelinesn www.aaai.org/Publications/Author/author.php

Pervasive context-aware computing technologies areessential enablers for next-generation applications forthe digital workplace, consumer electronics, research,education, government and health-care. Context-aware cognitive support requires activity and contextinformation to be captured and, ever more oen,moved across devices — securely, efficiently and withmultidevice interoperability.

is workshop builds on techniques to representcontext within activity models using a synthesis ofHCI/CSCW and AI approaches to improve the hu-man-computer interface for enhanced human perfor-mance of knowledge work, including reducing de-mands on people, such as the cognitive load inherentin activity/context switching.

Objectivese objectives and intended end results of the work-shop are as follows:

1. Discuss and review/revise initial dras of struc-ture of potential activity context representation andexchange languages

2. Explore fresh topics by discussing position pa-pers/proposals building on key research focus areas.

3. Augment the core research group, identify newcollaborations, and formalize an international acade-mic and industrial consortium to significantly aug-ment existing standards/dras/proposals and createnew research initiatives.

TopicsWe will explore task and context modeling issues ofcapture, representation, exchange, standardizationand interoperability for creating context-aware andactivity-based assistive cognition tools, including butnot limited to the following:

¶ Activity modeling, representation, recognition,detection, and acquisition

¶ Context capture and representation within activ-ities

¶ Semantic activity reasoning¶ Information integration and exchange¶ Use-cases/scenarios, architectures and prerequi-

sites¶ Security and privacy

Formatis two-day workshop will include keynotes to setthe tone, invited comprehensive reviews of the field,new proposals, open panel focusing on key researchissues and directions, discussion of proposals on newframeworks for synthesis of multiple and new ap-proaches, and working group formation to investigatesub-areas during the year. ere will be plenty of op-portunity for questioning existing systems, creatingresearch partnerships and identifying fresh researchideas. e size of the workshop will be about 25 re-

searchers with a majority of participants selected fromthe respondents to the call for participation.

SubmissionsResearchers should submit 6–8 page papers or 3–4page position statements in the standard AAAI formator provide a 1-2 page statement of interest along witha description of their related work and publications.All the selected papers will be published in a AAAITechnical Report volume. All submissions, statements,or requests to be on this workshop's (moderated)mailing list should be sent to Vikas Agrawal (activity-context@infosys.com).

Organizing CommieeLokendra Shastri, Chair (Infosys), James "Bo" Begole(PARC - Palo Alto Research Center), Tim Finin (Uni-versity of Maryland, Baltimore), Henry Kautz (Uni-versity of Rochester), Vikas Agrawal (Infosys).

Additional InformationFor additional information, please visit the supple-mental workshop site (activitycontext.org/aaai12).

Activity Context R

epresentation: Techniques and Languages

AAAI-12 WORKSHOPS 3

SubmissionsIf you would like to participate, submit either a full pa-per of no more than 6 pages (6,000 words); a short pa-per, or problem instance (at most 3 pages or 3,000words); or a position statement (1 page). Short papersmay address an important problem for further re-search or describe a practical problem or an interest-ing lesson learned. In addition, we solicit proposals forshort demonstrations (at most 3 pages with demon-strations taking at most 15 minutes). All submissionsshould conform to AAAI's formatting guidelines, andshould be submitted via EasyChair (www.easychair.org/account/conferences/?conf=aidc2012).

Workshop CochairsBarry O'Sullivan (4C, UCC, Ireland)Donagh Buckley (EMC, Ireland)Contact: aidc2012@easychair.org

Additional InformationFor additional information, please visit the supple-mental workshop site (osullivan.ucc.ie/aaai-2012-aidc).

Cloud computing is an emerging paradigm that aimsat delivering on-demand computing to any consumerwho has access to the internet. Cloud systems can runsoware on virtual machines that can be created on-demand in large data centres. ese services will beprovided through large-scale networks of new datacenters, which in turn will connect to the data centersalready established by organizations. As a user's de-mand for computing power increases, new virtualcomputers can be created and configured; as demanddecreases, unused hardware resources can be madeavailable again.

e objective of this workshop is to bring togetherresearchers and technologists from academia and in-dustry to explore the applications of artificial intelli-gence to the most pertinent technical challenges in da-ta center management and cloud computing.Workshop participation will be by invitation only.

TopicsTopics of interest related to data center managementand cloud computing include but are not limited tothe following applications of AI methods to problemsin the domain: online stochastic optimisation; ma-chine learning and data mining; parameterised com-plexity and graph theory; optimal stopping theory foronline decision-making; game theory and incentivecompatible mechanism design; virtualisation; datagovernance, trust and security; energy and perfor-mance profiling, accounting; metrics, benchmarks, in-terfaces; principles of power management; perfor-mance, energy and other resource trade-offs, energycomplexity; compiler optimization, application de-sign; system-level optimization, cross-layer coordina-tion; load and resource modeling, management;scheduling, run-time adaptation, feedback control;processor, network, storage, hardware componentsand architecture; reliability and power management;adaptive configuration and data placement strategiesin storage arrays; protocol management and conver-sion in an SOA environment.

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Research in robotics has traditionally emphasizedlow-level sensing and control tasks including sensoryprocessing, path planning, and manipulator designand control. In contrast, research in cognitive roboticsis concerned with endowing robots and sowareagents with higher level cognitive functions that en-able them to reason, act and perceive in changing, in-completely known, and unpredictable environments.Such robots must, for example, be able to reason aboutgoals, actions, when to perceive and what to look for,the cognitive states of other agents, time, collaborativetask execution, and so on. In short, cognitive roboticsis concerned with integrating reasoning, perceptionand action with a uniform theoretical and implemen-tation framework.

e use of both soware robots (sobots) and ro-botic artifacts in everyday life is on the upswing andwe are seeing increasingly more examples of their usein society with commercial products around the cor-ner and some already on the market. As interactionwith humans increases, so does the demand for so-phisticated robotic capabilities associated with delib-eration and high-level cognitive functions. Combiningresults from the traditional robotics discipline withthose from AI and cognitive science has and will con-tinue to be central to research in cognitive robotics.

Topicsis workshop aims to bring together researchers in-volved in all aspects of the theory and implementationof cognitive robots, to discuss current work and futuredirections. While the emphasis of the workshop is onthe methods and techniques developed in the field ofAI, we welcome work in related cognitive science dis-ciplines investigating computational/cognitive modelsof behavior. Also, we especially welcome discussionsand demonstrations of implemented systems.

FormatWe anticipate a two-day workshop that will compriseseveral sessions including presentations of researchpapers, position papers, and posters. e workshopwill also include discussion panels and a session forlive system demonstrations, providing an opportunityto showcase and discuss emerging technologies.

AendanceAttendance at this workshop is open to all interestedin the field, as well as authors of accepted papers.ose interested to attend who have not a paper topresent, are encouraged to send a brief submission ofinterest to the workshop chairs before the event. Weexpect 25–50 attendees.

SubmissionsPotential participants are invited to submit either afull-length technical paper or a statement of interestwith a position paper. Submissions are accepted inPDF format only, using the AAAI formatting guide-lines. Submissions must be no longer than eight pagesin length, including references and figures. Please sub-mit via EasyChair (www.easychair.org/conferences/?conf=cogrob2012). Author names should be includ-ed. Please refer to the AAAI style guide for details.

Organizing CommieeWolfram Burgard (Institute for Informatik, Albert-Ludwigs-Universitat Freiburg, Freiburg, Germany,burgard@informatik.uni-freiburg.de); Kurt Konolige(Willow Garage, Menlo Park, USA, konolige@willow-garage.com); Maurice Pagnucco (University of NewSouth Wales, Sydney, Australia, morri@cse.unsw.edu.au); Stavros Vassos (National and KapodistrianUniversity of Athens, Athens, Greece, stavrosv@di.uoa.gr — contact)

Additional InformationFor additional information, please visit the supple-mental workshop site (www.cse.unsw.edu.au/~cogrob/2012).

Cognitive Robotics

AAAI-12 WORKSHOPS 5

SubmissionsPaper submissions should not exceed 6 pages inlength, and should be in PDF format. Submissionsshould be formatted according to the AAAI 2012Workshop Author Instructions (this will not be a dou-ble-blind reviewing process). Please email all submis-sions to grounding@cs.washington.edu.

OrganizersCynthia Matuszek (University of Washington, cyn-thia@cs.washington.edu); Stefanie Tellex (Massachu-setts Institute of Technology, stefie10@csail.mit.edu);Dieter Fox, (University of Washington, fox@cs.wash-ington.edu) and Luke Zettlemoyer (University ofWashington, lsz@cs.washington.edu)

Additional InformationFor additional information, please visit the supple-mental workshop site (www.cs.washington.edu/ai/Mobile_Robotics//GroundingWorkshop.html).

Natural language is a powerful and intuitive modalityfor enabling humans to interact with physical systems.Understanding language about physical systems re-quires the ability to ground the language, or to extracta semantically meaningful representation from thelanguage and map it to the external world. Languagegrounding has received substantial attention recently,due largely to recent advances in robotics, sensing,natural language processing, and formal representa-tion systems. e AAAI-12 workshop on GroundingLanguage for Physical Systems will provide a venue todiscuss shared problems, descriptions of key researchproblems and challenges, and make progress towardsformulating shared definitions.

TopicsTopics will include but are not limited to the following:

¶ Definitions of and possible approaches to thegrounding problem.

¶ Methods and models for mapping between lan-guage and the external world.

¶ Interactive physical systems for exploringgrounding.

¶ Knowledge representations that support a rangeof semantic constructions.

¶ Algorithms for learning grounded meaningsfrom gesture, language, and other inputs.

¶ Interpreting instructions for physically-ground-ed perceptual or manipulative tasks.

¶ Vision, haptics, audio, and other sensing modal-ities for grounding linguistic elements such as at-tributes, objects, tasks, and spatial relationships.

¶ Challenge problems in the grounding space.

Formate workshop will consist of six invited talks and aposter session; discussion periods aer each talk willfacilitate interaction among participants. Authors ofaccepted papers will present at the poster session overlunch, and some authors may also be invited to giveshort talks. A moderated final discussion will providean opportunity to sum up the results of the day anddefine next steps.

e workshop is expected to have 25–30 re-searchers, split among invited participants, respon-dents to the call for participation, and interested re-searchers from relevant areas.

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Human computation is a nascent research area thatstudies how to build intelligent systems that involvehuman computers, with each of them performingcomputation (for example, image classification, trans-lation, and protein folding) that challenges even themost sophisticated AI algorithms that exist today.With the immense growth of the web, human compu-tation systems can now leverage the abilities of an un-precedented number of Internet users to performcomplex computation. Various genres of human com-putation applications are available today, includinggames with a purpose (for example, the ESP Game),crowdsourcing marketplaces (for example, AmazonMechanical Turk), and identity verification systems(for example, reCAPTCHA).

Despite the variety of human computation applica-tions, there exist many common core research issues.How can we design mechanisms for querying humancomputers that incentivizes truthful responses? Howdo we effectively assign tasks to human computers tomatch their particular expertise and interests? Whatare programming paradigms for designing algorithmsthat effectively leverage a crowd? How do we build hu-man computation systems that involve the joint effortsof both machines and humans? Significant advanceson such questions will likely draw on many disci-plines, including machine learning, mechanism andmarket design, information retrieval, decision-theo-retic planning, optimization, human computer inter-action, and so forth.

e goal of this workshop is to bring together aca-demic and industry researchers from diverse subfieldsin AI for a stimulating discussion of existing humancomputation applications and future directions of thisrelatively new subject area.

TopicsTopics of interest include, but are not limited to thefollowing:

¶ Programming languages, tools and platforms tosupport human computation

¶ Domain-specific challenges in human computa-tion

¶ Methods for estimating the cost, reliability, andskill of labelers

¶ Methods for designing and controlling work-flows for human computation tasks

¶ Empirical and formal models of incentives inhuman computation systems

¶ Design of manipulation-resistance mechanismsin human computation

¶ Techniques for inferring expertise and routingtasks to the appropriate individuals

¶ eoretical limitations of human computation¶ Novel human computation systems

Formate workshop consists of invited talks from promi-nent researchers, presentations of selected technicaland position papers, and two poster and demo ses-sions.

SubmissionsTechnical papers and position papers may be up to 6pages in length. For demos and poster presentations,authors should submit a short paper or extended ab-stract, up to 2 pages. We welcome early work, and par-ticularly encourage submission of visionary positionpapers that are more forward looking, and perspec-tives from a variety of disciplines outside of the coreAI community. All papers should follow AAAI for-matting guidelines and should be submitted electron-ically to the workshop submission site (cmt.re-search.microso.com/HCOMP2012).

Organizing CommieeYiling Chen, Chair (yiling@seas.harvard.edu, HarvardUniversity), Luis von Ahn (biglou@cs.cmu.edu,Carnegie Mellon University), Panagiotis G Ipeirotis(panos@stern.nyu.edu, New York University), EdithLaw (primary contact) (edith@cmu.edu, CarnegieMellon University), Haoqi Zhang (hq@eecs.harvard.edu, Harvard University)

Additional InformationFor additional information, please visit the supple-mental workshop site (humancomputation.com/2012).

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an Computation

AAAI-12 WORKSHOPS 7

SubmissionsPapers must be formatted according to the AAAI 2012style guide. We solicit short and long papers as well asresearch demos. Long papers (8 pages) present origi-nal research work; short papers (4 pages) report onwork in progress or describe demo systems. Papersmust be submitted electronically as PDFs toitwp2012@ls13.cs.uni-dortmund.de. e papers willbe selected based on a peer-review process. (Full ad-dress: Dietmar Jannach, TU Dortmund, 44221 Dort-mund, Germany, Phone +49 231 755 7272)

Workshop ChairsDietmar Jannach (TU Dortmund, Germany,dietmar.jannach@udo.edu); Sarabjot Singh Anand(University of Warwick, UK, s.s.anand@warwick.ac.uk); Bamshad Mobasher (DePaul University,Chicago, USA, mobasher@cs.depaul.edu); AlfredKobsa (University of California, Irvine, USA, kob-sa@uci.edu)

Additional InformationFor additional information, please visit the supple-mental workshop site (ls13-www.cs.uni-dortmund.de/homepage/itwp2012).

Web personalization tailors the web experience to aparticular user or set of users. Recommender systemsrepresent one special and prominent class of personal-ized web applications, which focus on user-dependentfiltering and support online users in the decision-making and buying process. In the light of the grow-ing importance of these areas and their increasingoverlap, the aim of this workshop is to bring togetherresearchers and practitioners of both fields, to fosteran exchange of information and ideas, and to facilitatea discussion of current and emerging topics relevant tobuilding personalized intelligent systems for the web.

TopicsUser model representation and decision support:Knowledge acquisition strategies, user context model-ing, cross-domain models, privacy, cognitive modelsfor Web navigation, self-adaptation, utility functionelicitation from user interaction, user modeling on thesocial web

Architectures, systems and enabling technologies:Personalized search, scalability of personalization andrecommendation techniques, intelligent browsing andnavigation, adaptive hypertext systems, hybrid andconversational recommendation systems, context-awareness, data/web mining for personalization, linkanalysis and graph mining, automated techniques forontology generation, learning, and acquisition; ma-chine leaning techniques for information extraction,social web, and the semantic web

User and algorithm centric evaluation methodolo-gies, metrics, and case studies

Formate program of the one-day workshop will be dividedinto "themed" technical sessions and a substantialamount of time allocated to open discussion. eworkshop program will be complemented by invitedtalks and a panel discussion, which address emergingtopics in the field.

Aendancee workshop is open to everyone interested in at-tending.

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Recently, there has been a growing interest in multia-gent path planning (MAPF). e problem is to com-pute a path for each agent from an initial to a goal lo-cation without conflicting with other agents, oenaiming to minimize a cost function, such as elapsedtime or throughput. Applications include vehicle fleetcoordination, computer games, robotics and variousmilitary scenarios.

Some researchers have worked at a theoretical lev-el, while others have implemented solvers for specificapplications. us, related papers have appeared inmultiple venues, including AIJ, JAIR, AAAI, IJCAI,ICRA, IROS, ICAPS and SoCS. Consequently, similarconcepts were developed in different sub-communi-ties, using varying terminology.

is workshop aims to bring together researchersworking on multiagent path planning from the differ-ent communities. e main goals are the following:

¶ Familiarize researchers from different areas withthe varying contributions to this problem.

¶ Standardize terminology and develop a taxono-my for different variants.

¶ Present the state-of-the-art and discuss openchallenges.

¶ Encourage collaboration between participants.

Formate workshop format will include (1) an introductorysession that will provide problem definitions, surveyexisting directions and propose a general terminology;(2) oral and poster presentations selected from thesubmissions based on their relevance and merit; (3) adiscussion panel that will review different approachesfor multiagent pathfinding in an informal setup; and(4) a dinner that will conclude the workshop and en-courage discussions.

SubmissionsInterested participants can submit one of the followingvia the workshop supplemental webpage

¶ Unpublished papers, which adhere to the AAAIpaper-formatting guidelines (at most 8 pages).Papers under review elsewhere should state thisexplicitly. Two-page summaries of work in-progress are encouraged.

¶ Existing papers that appeared in establishedvenues in the past few years. e submissionshould state the original venue. Two-page sum-maries of past work are encouraged.

¶ A short statement of interest.Submissions will go through a light review process.

Organizing CommieeAriel Felner (Ben Gurion University of the Negev, Is-rael, felner@bgu.ac.il); Nathan Sturtevant (Universityof Denver, sturtevant@cs.du.edu); Kostas E. Bekris(University of Nevada-Reno, bekris@cse.unr.edu);Roni Stern (Ben Gurion University of the Negev, Is-rael, roni.stern@gmail.com)

Additional InformationFor additional information, please visit the supple-mental workshop site (movingai.com/mapf).

Multiagent Pathfinding

AAAI-12 WORKSHOPS 9

SubmissionsYou are invited to submit papers through EasyChair(www.easychair.org/conferences/?conf=nesy12). Sub-mitted papers must not have been published else-where, must be written in English and should not ex-ceed 6 pages in the case of research and experiencepapers or 3 pages in the case of position papers (in-cluding figures, bibliography and appendices). Allsubmitted papers will be refereed based on their qual-ity, relevance, originality, significance and soundness.Accepted papers will be published in the AAAI Tech-nical Report series and will be included in the officialworkshop proceedings. Authors of the best papers willbe invited to submit a revised and extended version oftheir papers for formal publication.

Organizing CommieeArtur d'Avila Garcez (City University London, UK),Pascal Hitzler (Wright State University, USA), Luis C.Lamb (Universidade Federal do Rio Grande do Sul,Brazil)

Additional InformationFor additional information please visit the supplemen-tal workshop site (www.neural-symbolic.org). Gener-al questions concerning the workshop should be ad-dressed to Artur d'Avila Garcez at aag@soi.city.ac.uk.

Artificial intelligence (AI) researchers continue to facehuge challenges in their quest to develop truly intelli-gent systems. e recent developments in the area ofneural-symbolic integration offer an opportunity tocombine symbolic AI and robust neural computationto help tackle some of these challenges.

e Neural-Symbolic Learning and Reasoningworkshop attracts researchers and practitioners in theareas of neural computation, artificial intelligence,logic, complex networks and cognitive science. It is in-tended to create an atmosphere of exchange of ideas,providing a forum for the presentation and discussionof the key multidisciplinary topics related to neural-symbolic integration. Topics of interest include thefollowing:

¶ e representation of symbolic knowledge bysubsymbolic systems

¶ Integrated neural-symbolic approaches to ma-chine learning

¶ Extraction of symbolic knowledge from trainedneural networks

¶ Integrated neural-symbolic approaches to hu-man and logical reasoning

¶ Cognitive and biologically-inspired neural-sym-bolic agents

¶ Integration of logic and probabilities in neuralnetworks

¶ Structured learning and relational learning inneural networks

¶ Applications in robotics, simulation, fraud pre-vention, semantic web, soware engineering,fault diagnosis, verification and validation,bioinformatics, visual intelligence, and others.

Presentation and ParticipationAccepted papers must be presented during the work-shop. e workshop will also include extra time fordiscussion, allowing the audience to get a better un-derstanding of the issues, challenges and ideas beingpresented. e workshop is open to all members of theAI community, but the number of attendees may haveto be limited.

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Classical planning has made huge advances in the lasttwenty years, leading to solvers able to create planswith thousands of actions for problems described byhundreds of propositions. Yet, the assumptions of clas-sical planning (determinism, model completeness,and others) are oen criticized as being too restrictiveto address "real" planning problems.

Recently many researchers have started to exploitthe good performance of classical planners to solve amuch wider range of problems that, although theymay not appear to be "deterministic planning" prob-lems, nevertheless fit within the classical planningmodel (that is, propositional description of a knownstate and goal, deterministic actions that modify astate). e approach typically consists of creating clas-sical planning problems whose solution is directly orindirectly used to obtain a solution to the originalproblem. In this way, classical planners have been usedfor dealing with more expressive planning problems,including incomplete information, temporally extend-ed goals and preferences, as well as to solve problemsin bioinformatics (for example, genome rearrange-ment and gene regulatory networks), and active diag-nosis. In some cases, modifications of the classicalplanner may be necessary.

Topicsis workshop welcomes submissions on the use ofclassical planners for solving challenging problems inAI, and in other fields. Topics of interest include, butare not limited to:

Solving AI problems, including expressive planning,agent and multiagent systems, game playing, storytelling, knowledge acquisition, reasoning with prefer-ences, computational social choice, natural languageand commonsense reasoning.

Real-world application problems where creating aclassical planning problem is a key step in the pro-posed solution.

SubmissionsWe plan to have one or two invited speakers, repre-senting academic and industry research, as well as oralpresentation of papers accepted. Workshop submis-sions can be technical papers (up to 6 pages) or short-er position statements, challenges, and so on. Techni-cal papers will be reviewed by at least one researcher.Please submit your paper through EasyChair (www.easychair.org/account/conferences/?conf=cp4ps12).

Organizing CommieeHector Palacios (Universidad Carlos III de Madrid.Spain, hpalacio@inf.uc3m.es); Jorge Baier (PontificiaUniversidad Católica de Chile. Santiago, Chile,jabaier@cs.toronto.edu); Patrik Haslum (e Aus-tralian National University, Canberra, Australia, pa-trik.haslum@anu.edu.au)

Additional InformationFor additional information, please visit the supple-mental workshop site (cp4ps-12.ing.puc.cl).

Problem S

olving Using Classical Planners

AAAI-12 WORKSHOPS 11

We encourage submissions that show the relevanceor application of AI technologies for computationalsustainability domains. Apart from focus on founda-tional technologies for semantic cities (informationmanagement, knowledge management, ontology, in-ference model, data integration), we want to promoteillustrative use-cases using the semantic cities founda-tion.

Examples are transportation (traffic prediction,personal travel optimization, carpool and fleet sched-uling), public safety (suspicious activity detection, dis-aster management), healthcare (disease diagnosis andprognosis, pandemic management), water manage-ment (flood prevision, quality monitoring, fault diag-nosis), food (food traceability, carbon-footprint track-ing), energy (smart grid, carbon footprint tracking,electricity consumption forecasting) and buildings(energy conservation, fault detections). We also en-courage submissions that address unique characteris-tics of standard AI enabling sustainability problems,like optimization, reasoning, planning and learning.Outside AI, we encourage submissions from commu-nities engaged in open data and corresponding stan-dardization efforts, to make their work available at thisAI forum.

Topics of interest include, but not restricted to, are:¶ Process to open city (government) data¶ Platforms to manage government data¶ Provenance, access control and privacy-preserv-

ing issues in open data¶ Data cities interoperability¶ Semantic models - especially those built collabo-

ratively and evolving¶ Data integration and organization in semantic

cities (social media feeds, sensor data)¶ Internet of things in semantic cities¶ Robust inference models for semantic cities¶ Semantic event detection and classification¶ Applications in semantic cities¶ Spatio-temporal analysis and visualization¶ User interaction in exploring semantic data of

cities¶ Knowledge representation and reasoning chal-

lenges¶ Knowledge acquisition, evolution and mainte-

nance¶ Challenges with managing and integrating real-

time and historical data¶ Managing "big data"¶ Integrated systems¶ Applied AI models for semantic cities¶ Issues in scaling out AI techniques for semantic

cities¶ Case studies, successes, lessons learned¶ Public datasets and competitions

Cities around the world aspire to provide superiorquality of life to their citizens. An increasing numberhave realized that opening access to their data, andbuilding semantic models to abstract as well as inter-connect them can unleash economic growth while ad-dressing sustainability issues. We call cities that enablesuch capabilities "semantic cities."

In a semantic city, available resources are harnessedsafely, sustainably and efficiently to achieve positive,measurable economic and societal outcomes. En-abling City information as a utility, through a robust(expressive, dynamic, scalable) and (critically) a sus-tainable technology and socially synergistic ecosystemcould drive significant benefits and opportunities. Da-ta (and then information and knowledge) from peo-ple, systems and things is the single most scalable re-source available to City stakeholders to reach theobjective of semantic cities.

Two major trends are supporting semantic cities —open data and semantic web. "Open data is the ideathat certain data should be freely available to everyoneto use and republish as they wish, without restrictionsfrom copyright, patents or other mechanisms of con-trol." A number of cities and government have madetheir data publicly available, prominent being London(UK), Chicago (USA), Washington DC (USA), andDublin (Ireland).

Semantic web as the technology to interconnectheterogeneous data has matured and it is being in-creasingly used in the form of Linked Open Data andformal ontologies. us, a playfield for more AI re-search-driven technologies for cities has emerged.

In this context, the aims of the workshop are to:¶ Draw the attention of the AI community to the

research challenges and opportunities in seman-tic cities.

¶ Draw the attention on the multidisciplinary di-mension and its impact on semantic cities for ex-ample, transportation, energy, water manage-ment.

¶ Identify unique issues of this domain and whatnew techniques may be needed. As an example,since governments and citizens are involved, da-ta security and privacy are first-class concerns.

¶ Promoting more cities to become semanticcities.

¶ Elaborating a (semantic data) benchmark fortesting AI techniques on semantic cities.

¶ Provide a platform for sharing best-practices anddiscussion.

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12 AAAI-12 WORKSHOPS

Formate workshop will consist of papers and poster pre-sentations, a panel, an invited talk, and discussion ses-sions, in one full-day schedule. e invited talk will in-vite a leading expert in the field to present theirresearch and vision of future work. e panel will fo-cus on connecting the AI researchers to the variouschallenges that the targeted domain brings.

SubmissionsAll papers submissions must be in AAAI format. eycan be one of two types. e first is regular researchpapers, which can be up to 6 pages long and are ex-pected to present a significant contribution. e sec-ond is short submission of up to 4 pages, which de-scribes a position on the topic of the workshop or ademonstration/ tool. All submissions will be handledelectronically via Easychair (www.easychair.org/ac-count/signin.cgi?conf=semanticcitiesaaai20).

CochairsBiplav Srivastava (IBM T. J. Watson Research Center,Hawthorne, USA, sbiplav@in.ibm.com); Freddy Lecue(IBM Research — Smarter Cities Technology Centre,Dublin, Ireland, freddy lecue@ie.ibm.com); AnupamJoshi (University of Maryland, College Park, USA,joshi@cs.umbc.edu)

Additional InformationFor additional information, please visit the supple-mental workshop site (research.ihost.com/semanticci-ties12).

AAAI-12 WORKSHOPS 13