From hedderik at van-rijn.org Wed Jul 4 10:15:29 2012 From: hedderik at van-rijn.org (Hedderik van Rijn) Date: Wed, 4 Jul 2012 16:15:29 +0200 Subject: [ACT-R-users] Fully Funded PhD Position in Groningen Message-ID: Hi, please find attached an advertisement for a four-year (salaried) PhD position. Depending on the interests of the student, computational modeling could be a large component of the project. If you have any questions, please let me know and of course, please forward this message to anyone who might be interested. - Hedderik. Project information The Departments of Chronobiology and Molecular Chronobiology at the University of Groningen (Faculty of Mathematics and Natural Sciences) have an opening for a PhD position, for the project OnTime funded by the Technology Foundation STW. The research is related to the human circadian clock, aiming to use chronobiology to improve sleep, health and quality of life. The scope of the project addresses the 80% of the population that uses alarm clocks to get up on workdays. Misalignment of the circadian and social clocks (a condition called social jetlag) results in sleep deprivation, performance deficits, and it impairs health and well-being. This project aims to identify recommendations and interventions (e.g. light or work-time flexibility) that help to realign the circadian and the social clock. The fact that large differences exist in how circadian clocks of individuals are embedded into the light/dark-cycle poses both challenges and chances in this scientific endeavour. -- dr. Hedderik van Rijn Experimental Psychology University of Groningen http://www.van-rijn.org | http://www.slimstampen.nl | http://www.iccm2012.com -------------- next part -------------- A non-text attachment was scrubbed... Name: PhD_Social_Jetlag-1.pdf Type: application/pdf Size: 109278 bytes Desc: not available URL: From david at wooden-robot.net Wed Jul 4 22:48:02 2012 From: david at wooden-robot.net (-dp-) Date: Thu, 5 Jul 2012 10:48:02 +0800 Subject: [ACT-R-users] Research Scientist Positions in Singapore Message-ID: Computational Social Cognition Research Scientist Positions in Singapore A*STAR?s Computational Social Cognition research programme is seeking two PhD scientists in cognitive and/or social psychology, with strong skills in experimental design and data analysis. The Agency for Science, Technology and Research (A*STAR), Singapore's national agency for promoting world-class research in science and technology, sponsors a research programme to study and simulate social cognition, social perception and social decision-making. The Computational Social Cognition (CSC) programme is hosted within the Institute of High Performance Computing (IHPC), an A*STAR research institute that specializes in solving challenging scientific problems using advanced computational techiques including modelling, simulation, and visualization. We are seeking PhDs in cognitive and/or social psychology who have strong skills in experimental design and data analysis and an interest in cognitive modeling. We are primarily interested in increasing our strengths in the areas of intention perception, decision-making and/or cognitive neuroscience. Primary responsibilities would include experimental design and data analysis, as well as collaborating with other members of interdisciplinary project teams on the development of cognitive/AI models. Interested applicants should send their CV, and contact information for two references, to Professor Andrew Ortony at csc.ihpc.jobs at gmail.com, with the subject line "Application for CSC Research Scientist position". Positions will be for an initial period of two years, with possibility of renewal based on performance. A*STAR is an equal opportunity employer valuing diverse cultures and disciplines in our research environment. Information about CSC: http://cogsys.ihpc.a-star.edu.sg Information about IHPC: http://www.ihpc.a-star.edu.sg Information about A*STAR: http://www.a-star.edu.sg Information about Singapore: http://www.contactsingapore.org.sg Please note that funding for the positions is pending approval. -------------- next part -------------- An HTML attachment was scrubbed... URL: From pavel at dit.unitn.it Tue Jul 3 16:58:54 2012 From: pavel at dit.unitn.it (Pavel Shvaiko) Date: Tue, 3 Jul 2012 22:58:54 +0200 Subject: [ACT-R-users] 3rd CFP: ISWC'12 workshop on Ontology Matching (OM-2012) Message-ID: <90B092A241704A47A00FF2EC8A523A6E@ITN96946> Apologies for cross-postings -------------------------------------------------------------------------- 3rd CALL FOR CONTRIBUTIONS -------------------------------------------------------------------------- The Seventh International Workshop on ONTOLOGY MATCHING (OM-2012) http://om2012.ontologymatching.org/ November 11 or 12, 2012, ISWC Workshop Program, Boston, MA USA BRIEF DESCRIPTION AND OBJECTIVES Ontology matching is a key interoperability enabler for the Semantic Web, as well as a useful tactic in some classical data integration tasks dealing with the semantic heterogeneity problem. It takes the ontologies as input and determines as output an alignment, that is, a set of correspondences between the semantically related entities of those ontologies. These correspondences can be used for various tasks, such as ontology merging, data translation, query answering or navigation on the web of data. Thus, matching ontologies enables the knowledge and data expressed in the matched ontologies to interoperate. The workshop has three goals: 1. To bring together leaders from academia, industry and user institutions to assess how academic advances are addressing real-world requirements. The workshop will strive to improve academic awareness of industrial and final user needs, and therefore, direct research towards those needs. Simultaneously, the workshop will serve to inform industry and user representatives about existing research efforts that may meet their requirements. The workshop will also investigate how the ontology matching technology is going to evolve. 2. To conduct an extensive and rigorous evaluation of ontology matching approaches through the OAEI (Ontology Alignment Evaluation Initiative) 2012 campaign: http://oaei.ontologymatching.org/2012/. The particular focus of this year's OAEI campaign is on real-world specific matching tasks involving, e.g., biomedical ontologies. Therefore, the ontology matching evaluation initiative itself will provide a solid ground for discussion of how well the current approaches are meeting business needs. 3. To examine similarities and differences from database schema matching, which has received decades of attention but is just beginning to transition to mainstream tools. This year, in sync with the main conference, we encourage submissions specifically devoted to: (i) repeatable evaluations of the approaches proposed (not necessarily within OAEI) and (ii) application of the matching technology in real-life scenarios and assessment of its usefulness to the final users. TOPICS of interest include but are not limited to: Business and use cases for matching (e.g., open government data); Requirements to matching from specific domains; Application of matching techniques in real-world scenarios; Formal foundations and frameworks for matching; Matching patterns; Instance matching and data interlinking; Large-scale matching evaluation; Performance of matching techniques; Matcher selection and self-configuration; User involvement (including both technical and organizational aspects); Explanations in matching; Social and collaborative matching; Alignment management; Reasoning with alignments; Matching for traditional applications (e.g., information integration); Matching for emerging applications (e.g., linked data, search). SUBMISSIONS Contributions to the workshop can be made in terms of technical papers and posters/statements of interest addressing different issues of ontology matching as well as participating in the OAEI 2012 campaign. Technical papers should be not longer than 12 pages using the LNCS Style: http://www.springer.com/computer/lncs?SGWID=0-164-6-793341-0 Posters/statements of interest should not exceed 2 pages and should be handled according to the guidelines for technical papers. All contributions should be prepared in PDF format and should be submitted through the workshop submission site at: http://www.easychair.org/conferences/?conf=om2012 Contributors to the OAEI 2012 campaign have to follow the campaign conditions and schedule at http://oaei.ontologymatching.org/2012/. IMPORTANT DATES FOR TECHNICAL PAPERS AND POSTERS: July 31, 2012: Deadline for the submission of papers. August 31, 2012:Deadline for the notification of acceptance/rejection. September 10, 2012: Workshop camera ready copy submission. November 11th or 12th, 2012: OM-2012, The Boston Park Plaza Hotel & Towers, Boston, MA USA. ORGANIZING COMMITTEE 1. Pavel Shvaiko (Main contact) TasLab, Informatica Trentina SpA, Italy 2. J?r?me Euzenat INRIA & LIG, France 3. Anastasios (Tasos) Kementsietsidis IBM Research, USA 4. Ming Mao SAP Labs, USA 5. Natasha Noy Stanford Center for Biomedical Informatics Research, USA 5. Heiner Stuckenschmidt University of Mannheim, Germany PROGRAM COMMITTEE Michele Barbera, SpazioDati, Italy Chris Bizer, Free University Berlin, Germany Olivier Bodenreider, National Library of Medicine, USA Marco Combetto, Informatica Trentina, Italy J?r?me David, INRIA & LIG, France Alfio Ferrara, University of Milan, Italy Fausto Giunchiglia, University of Trento, Italy Bin He, IBM, USA Wei Hu, Nanjing University, China Ryutaro Ichise, National Institute of Informatics, Japan Antoine Isaac, Vrije Universiteit Amsterdam & Europeana, Netherlands Krzysztof Janowicz, University of California, USA Anja Jentzsch, Free University Berlin, Germany Ernesto Jimenez-Ruiz, University of Oxford, UK Yannis Kalfoglou, Ricoh Europe plc, UK Patrick Lambrix, Link?pings Universitet, Sweden Monika Lanzenberger, Vienna University of Technology, Austria Rob Lemmens, ITC, The Netherlands Maurizio Lenzerini, University of Rome La Sapienza, Italy Vincenzo Maltese, University of Trento, Italy Fiona McNeill, University of Edinburgh, UK Christian Meilicke, University of Mannheim, Germany Peter Mork, Noblis, USA Nico Lavarini, Cogito - Expert System, Italy Axel-Cyrille Ngonga Ngomo, University of Leipzig, Germany Andriy Nikolov, Open University, UK Leo Obrst, The MITRE Corporation, USA Yefei Peng, Google, USA Fran?ois Scharffe, LIRMM, France Luciano Serafini, Fondazione Bruno Kessler - IRST, Italy Kavitha Srinivas, IBM, USA Umberto Straccia, ISTI-C.N.R., Italy Ondrej Svab-Zamazal, Prague University of Economics, Czech Republic C?ssia Trojahn dos Santos, INRIA & LIG, France Rapha?l Troncy, EURECOM, France Giovanni Tummarello, Fondazione Bruno Kessler - IRST, Italy Lorenzino Vaccari, European Commission - Joint Research Center, Italy Ludger van Elst, DFKI, Germany Shenghui Wang, Vrije Universiteit Amsterdam, Netherlands Baoshi Yan, LinkedIn, USA Songmao Zhang, Chinese Academy of Sciences, China ------------------------------------------------------- Download OM-2012 flyer: http://om2012.ontologymatching.org/Pictures/CfP_OM2012_flyer.pdf ------------------------------------------------------- More about ontology matching: http://www.ontologymatching.org/ http://book.ontologymatching.org/ ------------------------------------------------------- Best Regards, Pavel ------------------------------------------------------- Pavel Shvaiko, PhD Innovation and Research Manager TasLab, Informatica Trentina SpA, Italy http://www.ontologymatching.org/ http://www.taslab.eu/ http://www.infotn.it/ http://www.dit.unitn.it/~pavel/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From cfp2012 at gcis.csie-conf.org Wed Jul 4 00:52:23 2012 From: cfp2012 at gcis.csie-conf.org (=?utf-8?B?5YiY6ICB5biI?=) Date: Wed, 4 Jul 2012 12:52:23 +0800 Subject: [ACT-R-users] Congress on Intelligent Systems & Software Engineering (IEEE Xplore/Ei Compendex/ISTP) Message-ID: <08B17BC638FEC09B681570167048CEC3@kshik> 2012 3rd Global Congress on Intelligent Systems (GCIS 2012) http://gcis-conf.org 2012 3rd World Congress on Software Engineering (WCSE 2012) http://wcse-conf.org 6-8 November 2012, Wuhan, China GCIS & WCSE 2012 intends to be a global forum for researchers and engineers to present and discuss recent innovations and new techniques in intelligent systems and software engineering. Due to many requests, the submission deadline is now extended to 20 July 2012. GCIS & WCSE 2012 conference proceedings will be published by the CPS which will include the conference proceedings in the IEEE Xplore and submit the conference proceedings to Ei Compendex and ISTP for indexing (1st GCIS & WCSE 2009 and 2nd GCIS & WCSE 2010 proceedings were already indexed in Ei Compendex). Selected papers will be published in related journal special issues in IEEE Transactions on Industrial Informatics (SCI; Impact Factor: 1.614), Decision Support Systems (SCI; Impact Factor: 2.622), Information Systems Frontiers (SCI; Impact Factor: 1.309), Information Systems Management (SCI; Impact Factor: 0.756), and Enterprise Information Systems (SCI; Impact Factor: 2.809) after expansion, review, and revision as required. The registration fee of US$430 or RMB 2700 includes publication of 1 paper, lunches, dinners, and banquet. Specific topics of interest include, but are not limited to: GCIS: artificial intelligence, machine learning, intelligent control and automation, computational intelligence, soft computing, nature-inspired computation, bio-inspired algorithms, neuro-fuzzy techniques, genetic and evolutionary algorithms, semantic web, etc.. WCSE: Software metrics; Software tools and development environments; Software policy and ethics; Programming languages; Internet and information systems development; Software requirements; Software architecture and design; Software components and reuse; Software testing and analysis; Human-Computer Interaction; Software processes and workflows; Software dependability, safety, privacy and reliability; Reverse engineering and maintenance; Program comprehension and visualization, etc.. Wuhan is known as the "Homeland of White Clouds and Yellow Crane" and is one of China's largest cities. There are many scenic spots and historical sites within and around Wuhan, for example, the Yellow Crane Tower, the East Lake, many charming colonial style buildings along Yanjiang Street and around Hongshan Square. Important Dates: Paper Submission Deadline (Extended): 15 June 2012 Review Notification: 15 June 2012 Final Papers and Author Registration Deadline: 15 August 2012 In addition to research papers, the conference also encourages companies and institutions to showcase their modern products and equipment in the conference areas. Please email your inquiries to GCIS2012 at whut.edu.cn (for GCIS 2012) or WCSE2012 at whut.edu.cn (for WCSE 2012). Please forward to colleagues/students. To unsubscribe, please reply with ?unsubscribe act-r-users at andrew.cmu.edu ? as your email subject. -------------- next part -------------- An HTML attachment was scrubbed... URL: From julian.marewski at unil.ch Mon Jul 9 04:51:08 2012 From: julian.marewski at unil.ch (Julian Marewski) Date: Mon, 9 Jul 2012 10:51:08 +0200 Subject: [ACT-R-users] Journal of Applied Research in Memory and Cognition (JARMAC) - call for papers on Judgment and Decision Making Message-ID: <000301cd5daf$fe1c4d20$fa54e760$@marewski@unil.ch> FYI. The Journal of Applied Research in Memory and Cognition (JARMAC) invites researchers to submit papers that have application to judgments and decision made in real-world contexts. We are looking for innovative, creative papers that will stimulate readers' curiosity and exhilaration when reading great science. We prefer short, empirical studies (target length = 4,000 words), but we are receptive to longer papers for more complex and multi-experiment studies and literature reviews. We also have a target-commentary section to promote discussion of contentious, hot topics. For details, contact Ron Fisher (Editor) at fisherr at fiu.edu or Ronald.Fisher at fiu.edu. Details about JARMAC can be found at http://ees.elsevier.com/jarmac Dr. Ronald P. Fisher Department of Psychology Florida International University 3000 N.E. 151st Street North Miami, FL 33181-3600 U.S.A. tel: 305 919 5853 fax: 305 919 5964 -------------- next part -------------- An HTML attachment was scrubbed... URL: From cl at cmu.edu Mon Jul 9 16:05:20 2012 From: cl at cmu.edu (Christian Lebiere) Date: Mon, 09 Jul 2012 16:05:20 -0400 Subject: [ACT-R-users] 2012 ACT-R Workshop Message-ID: Please remember to register for the workshop and submit a presentation or symposium/tutorial proposal - note the two separate web sites below. Thank you, - Christian ============== The Nineteenth Annual ACT-R workshop will take place from Friday July 27 to Sunday July 29 2012 at Carnegie Mellon University following the ACT-R Summer School. Mornings will be devoted to research presentations, each lasting about 20 minutes plus questions. Participants are invited to present their ACT-R research by submitting a one-page abstract with their registration. Afternoons will feature discussion sessions and instructional tutorials. Suggestions for the topics of the tutorials and discussion sessions are welcome. Friday afternoon will feature an invited presentation by Paul Rosenbloom. Admission to the workshop is open to all. The early registration fee (before July 1) is $100 and the late registration fee (after July 1) is $125. Informal proceedings of past workshops can be found on the ACT-R web site (http://act-r.psy.cmu.edu/workshops/). Requests for presentations should be submitted before July 1 to receive full consideration for inclusion in the workshop program. A preliminary program of presentations will be made available in early July.? Housing is available on a limited basis in the CMU dormitories for the duration of the workshop at the rate of about $60/day for single rooms and $40/day for double rooms. The web site to register for the workshop and (optionally) housing in the CMU dormitories is: https://web.campusservices.cmu.edu/conferences/registration.taf?ID=ACT-R%202 012 In addition, if you would like to present a talk or have a suggestion for a panel discussion or tutorial, you need to fill out the form on the second link at: http://act-r.psy.cmu.edu/actrnews/index.php?id=40 Additional inquiries can be sent to cl at cmu.edu or jlferris at cmu.edu. Christian From reitter at cmu.edu Wed Jul 11 15:34:41 2012 From: reitter at cmu.edu (David Reitter) Date: Wed, 11 Jul 2012 15:34:41 -0400 Subject: [ACT-R-users] Inter-subject variability in declarative memory Message-ID: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> Most ACT-R models seem to assume a "standard mind", an average cognitive system, with the same (global) parameters set for each simulated subject. Particularly, the base-level decay parameter alpha (:bll) is not one to mess with - modelers usually leave it at 0.5. That said, humans differ in their memory abilities. I am interested in any empirical and modeling work that explores the distribution of declarative memory parameters (such as alpha and the rather model-dependent base-level constant). Can we assume a normal distribution around alpha=0.5? How wide is it? Much work has been done on short-term and working-memory capacity. However, if you are aware of work relating ACT-R with its integrated perspective on short-term and long-term memory and inter-subject variability, please let me know. If I get a lot of answers, I will post a summary here. Thanks, David -- Dr. David Reitter Research Psychologist, Department of Psychology, Carnegie Mellon University 08/2012: Assistant Professor of Information Sciences and Technology, Penn State University http://www.david-reitter.com From coty at cmu.edu Wed Jul 11 15:42:18 2012 From: coty at cmu.edu (Cleotilde Gonzalez) Date: Wed, 11 Jul 2012 15:42:18 -0400 Subject: [ACT-R-users] Inter-subject variability in declarative memory In-Reply-To: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> References: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> Message-ID: <00d101cd5f9d$483fb010$d8bf1030$@edu> Hi David, I have been messing around with the decay and the activation noise parameters for some time now :-), although only more recently I am starting to be more organized about the value of these parameters in repeated choice tasks. You can see our approach in these papers: http://www.hss.cmu.edu/departments/sds/ddmlab/papers/GonzalezDutt2011_psychr eview.pdf http://www.hss.cmu.edu/departments/sds/ddmlab/papers/Gonzalezetal2011Games.p df http://www.hss.cmu.edu/departments/sds/ddmlab/papers/GonzalezDuttLebiere-Pro ofs-JOCS_uncorrectedproofs.pdf the Games papers uses distribution rather than point-based parameters. I'd be happy to talk to you about these. Coty -----Original Message----- From: act-r-users-bounces at act-r.psy.cmu.edu [mailto:act-r-users-bounces at act-r.psy.cmu.edu] On Behalf Of David Reitter Sent: Wednesday, July 11, 2012 3:35 PM To: act-r-users at act-r.psy.cmu.edu Subject: [ACT-R-users] Inter-subject variability in declarative memory Most ACT-R models seem to assume a "standard mind", an average cognitive system, with the same (global) parameters set for each simulated subject. Particularly, the base-level decay parameter alpha (:bll) is not one to mess with - modelers usually leave it at 0.5. That said, humans differ in their memory abilities. I am interested in any empirical and modeling work that explores the distribution of declarative memory parameters (such as alpha and the rather model-dependent base-level constant). Can we assume a normal distribution around alpha=0.5? How wide is it? Much work has been done on short-term and working-memory capacity. However, if you are aware of work relating ACT-R with its integrated perspective on short-term and long-term memory and inter-subject variability, please let me know. If I get a lot of answers, I will post a summary here. Thanks, David -- Dr. David Reitter Research Psychologist, Department of Psychology, Carnegie Mellon University 08/2012: Assistant Professor of Information Sciences and Technology, Penn State University http://www.david-reitter.com _______________________________________________ ACT-R-users mailing list ACT-R-users at act-r.psy.cmu.edu http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users From troy.d.kelley6.civ at mail.mil Wed Jul 11 15:50:15 2012 From: troy.d.kelley6.civ at mail.mil (Kelley, Troy D CIV (US)) Date: Wed, 11 Jul 2012 19:50:15 +0000 Subject: [ACT-R-users] Inter-subject variability in declarative memory (UNCLASSIFIED) In-Reply-To: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> References: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> Message-ID: Classification: UNCLASSIFIED Caveats: NONE One parameter to look at as well would be base level noise, or production utility noise, or both. I know from my work with neuroscientists that some individuals have "noiser" brains than other individuals. This would be reflected in memory differences and error rates. Directly simulating the size of working memory might be much more difficult to achieve, and I am not really sure how to accomplish that. As you suggest, perhaps decay rates would reflect the amount of information available in working memory. So, the slower the rate, the more information in working memory. Perhaps indirectly related to working memory, you could try manipulating latency times associated with retrievals? Faster retrieval times would free working memory for other tasks. Troy Kelley RDRL-HRS-E Cognitive Robotics and Modeling Team Leader Human Research and Engineering Directorate Army Research Laboratory Aberdeen Proving Ground, MD 21005 voice: 410-278-5869 or 410-278-6748 fax: 410-278-9523 NEW EMAIL ADDRESS troy.d.kelley6.civ at mail.mil -----Original Message----- From: act-r-users-bounces at act-r.psy.cmu.edu [mailto:act-r-users-bounces at act-r.psy.cmu.edu] On Behalf Of David Reitter Sent: Wednesday, July 11, 2012 3:35 PM To: act-r-users at act-r.psy.cmu.edu Subject: [ACT-R-users] Inter-subject variability in declarative memory Most ACT-R models seem to assume a "standard mind", an average cognitive system, with the same (global) parameters set for each simulated subject. Particularly, the base-level decay parameter alpha (:bll) is not one to mess with - modelers usually leave it at 0.5. That said, humans differ in their memory abilities. I am interested in any empirical and modeling work that explores the distribution of declarative memory parameters (such as alpha and the rather model-dependent base-level constant). Can we assume a normal distribution around alpha=0.5? How wide is it? Much work has been done on short-term and working-memory capacity. However, if you are aware of work relating ACT-R with its integrated perspective on short-term and long-term memory and inter-subject variability, please let me know. If I get a lot of answers, I will post a summary here. Thanks, David -- Dr. David Reitter Research Psychologist, Department of Psychology, Carnegie Mellon University 08/2012: Assistant Professor of Information Sciences and Technology, Penn State University http://www.david-reitter.com _______________________________________________ ACT-R-users mailing list ACT-R-users at act-r.psy.cmu.edu http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users Classification: UNCLASSIFIED Caveats: NONE -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 5619 bytes Desc: not available URL: From n.a.taatgen at rug.nl Thu Jul 12 04:25:01 2012 From: n.a.taatgen at rug.nl (Niels Taatgen) Date: Thu, 12 Jul 2012 10:25:01 +0200 Subject: [ACT-R-users] Inter-subject variability in declarative memory In-Reply-To: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> References: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> Message-ID: David, Tweaking parameters to fit individual differences is a common approach, as the earlier responses have already indicated, but another option is to look at differences in working memory strategies. I strongly believe that many individual differences in cognitive control, including working memory, are due to people applying different strategies. Transfer experiments support this idea by showing that, for example, training working memory not only increases working memory capacity, but also reduces Stroop interference. I presented models of this during ICCM in Berlin, and have a draft paper about it (which I can mail you if you are interested). Niels On Jul 11, 2012, at 9:34 PM, David Reitter wrote: > Most ACT-R models seem to assume a "standard mind", an average cognitive system, with the same (global) parameters set for each simulated subject. Particularly, the base-level decay parameter alpha (:bll) is not one to mess with - modelers usually leave it at 0.5. > > That said, humans differ in their memory abilities. > > I am interested in any empirical and modeling work that explores the distribution of declarative memory parameters (such as alpha and the rather model-dependent base-level constant). Can we assume a normal distribution around alpha=0.5? How wide is it? > > Much work has been done on short-term and working-memory capacity. However, if you are aware of work relating ACT-R with its integrated perspective on short-term and long-term memory and inter-subject variability, please let me know. If I get a lot of answers, I will post a summary here. > > Thanks, > David > > > > -- > Dr. David Reitter > Research Psychologist, Department of Psychology, Carnegie Mellon University > 08/2012: Assistant Professor of Information Sciences and Technology, Penn State University > http://www.david-reitter.com > > > _______________________________________________ > ACT-R-users mailing list > ACT-R-users at act-r.psy.cmu.edu > http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users =============================================== Niels Taatgen - Professor University of Groningen, Artificial Intelligence web: http://www.ai.rug.nl/~niels email: niels at ai.rug.nl Telephone: +31 50 3636435 =============================================== From conzalez at andrew.cmu.edu Thu Jul 12 06:30:19 2012 From: conzalez at andrew.cmu.edu (Coty Gonzalez) Date: Thu, 12 Jul 2012 06:30:19 -0400 Subject: [ACT-R-users] Inter-subject variability in declarative memory In-Reply-To: References: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> Message-ID: <970A9D2C-A497-4691-8182-D5812680D9CE@andrew.cmu.edu> Beyond "tweaking parameters": the point is to understand the contributions of each parameter and what each of them really mean for different populations and tasks. Sent from Coty's iPad excuse typos and brevity. On Jul 12, 2012, at 4:25 AM, Niels Taatgen wrote: > David, > Tweaking parameters to fit individual differences is a common approach, as the earlier responses have already indicated, but another option is to look at differences in working memory strategies. I strongly believe that many individual differences in cognitive control, including working memory, are due to people applying different strategies. Transfer experiments support this idea by showing that, for example, training working memory not only increases working memory capacity, but also reduces Stroop interference. I presented models of this during ICCM in Berlin, and have a draft paper about it (which I can mail you if you are interested). > Niels > On Jul 11, 2012, at 9:34 PM, David Reitter wrote: > >> Most ACT-R models seem to assume a "standard mind", an average cognitive system, with the same (global) parameters set for each simulated subject. Particularly, the base-level decay parameter alpha (:bll) is not one to mess with - modelers usually leave it at 0.5. >> >> That said, humans differ in their memory abilities. >> >> I am interested in any empirical and modeling work that explores the distribution of declarative memory parameters (such as alpha and the rather model-dependent base-level constant). Can we assume a normal distribution around alpha=0.5? How wide is it? >> >> Much work has been done on short-term and working-memory capacity. However, if you are aware of work relating ACT-R with its integrated perspective on short-term and long-term memory and inter-subject variability, please let me know. If I get a lot of answers, I will post a summary here. >> >> Thanks, >> David >> >> >> >> -- >> Dr. David Reitter >> Research Psychologist, Department of Psychology, Carnegie Mellon University >> 08/2012: Assistant Professor of Information Sciences and Technology, Penn State University >> http://www.david-reitter.com >> >> >> _______________________________________________ >> ACT-R-users mailing list >> ACT-R-users at act-r.psy.cmu.edu >> http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users > > =============================================== > Niels Taatgen - Professor > University of Groningen, Artificial Intelligence > web: http://www.ai.rug.nl/~niels email: niels at ai.rug.nl > Telephone: +31 50 3636435 > =============================================== > > > > > > > > _______________________________________________ > ACT-R-users mailing list > ACT-R-users at act-r.psy.cmu.edu > http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users > From c.p.beaman at reading.ac.uk Thu Jul 12 07:20:26 2012 From: c.p.beaman at reading.ac.uk (Phil Beaman) Date: Thu, 12 Jul 2012 11:20:26 +0000 Subject: [ACT-R-users] Inter-subject variability in declarative memory In-Reply-To: <970A9D2C-A497-4691-8182-D5812680D9CE@andrew.cmu.edu> References: <7F8C841E-DFA9-4FC3-BA2D-8A68177D3A98@cmu.edu> , <970A9D2C-A497-4691-8182-D5812680D9CE@andrew.cmu.edu> Message-ID: <0F8F4C146989F243A9A1BB3E6399FCCF1DF71583@vime-mbx1.rdg.ac.uk> ...but both approaches are valid on their own terms. It makes no sense to average over individual subject strategies, where these do differ, but it is an interesting question to ask whether individual differences in parameter values or in strategy choice provide the most parsimonious account a priori of observed subject differences. In some research areas (eg cognitive development) the assumption of a qualitative change between one population (age group) and another appears to be the default account of performance differences between the two groups, and this is sometimes worth questioning (recent papers by Jarrold and colleagues on the development of phonological representations in short-term memory, for example). Similarly, if parameter differences are always and only the means used to simulate individual differences on a task, this is also worth challenging if such parameter manipulation is used unthinkingly. P Dr Philip Beaman AFBPsS Senior Lecturer (Associate Professor) in Cognitive Psychology School of Psychology & Clinical Language Sciences Earley Gate, Whiteknights Reading RG6 6AL Tel: +44 (0) 118 3787637 Fax: +44 (0) 118 3786715 Staff web-page: http://www.reading.ac.uk/psychology/about/staff/c-p-beaman.aspx Cognitive Science Lab: http://www.personal.rdg.ac.uk/~sxs98cpb/philip_beaman.htm "I need truth, and some aspirin" -- Fernando Pessoa, 1931 ________________________________________ From: act-r-users-bounces at act-r.psy.cmu.edu [act-r-users-bounces at act-r.psy.cmu.edu] on behalf of Coty Gonzalez [conzalez at andrew.cmu.edu] Sent: 12 July 2012 11:30 To: Niels Taatgen Cc: act-r-users at act-r.psy.cmu.edu Subject: Re: [ACT-R-users] Inter-subject variability in declarative memory Beyond "tweaking parameters": the point is to understand the contributions of each parameter and what each of them really mean for different populations and tasks. Sent from Coty's iPad excuse typos and brevity. On Jul 12, 2012, at 4:25 AM, Niels Taatgen wrote: > David, > Tweaking parameters to fit individual differences is a common approach, as the earlier responses have already indicated, but another option is to look at differences in working memory strategies. I strongly believe that many individual differences in cognitive control, including working memory, are due to people applying different strategies. Transfer experiments support this idea by showing that, for example, training working memory not only increases working memory capacity, but also reduces Stroop interference. I presented models of this during ICCM in Berlin, and have a draft paper about it (which I can mail you if you are interested). > Niels > On Jul 11, 2012, at 9:34 PM, David Reitter wrote: > >> Most ACT-R models seem to assume a "standard mind", an average cognitive system, with the same (global) parameters set for each simulated subject. Particularly, the base-level decay parameter alpha (:bll) is not one to mess with - modelers usually leave it at 0.5. >> >> That said, humans differ in their memory abilities. >> >> I am interested in any empirical and modeling work that explores the distribution of declarative memory parameters (such as alpha and the rather model-dependent base-level constant). Can we assume a normal distribution around alpha=0.5? How wide is it? >> >> Much work has been done on short-term and working-memory capacity. However, if you are aware of work relating ACT-R with its integrated perspective on short-term and long-term memory and inter-subject variability, please let me know. If I get a lot of answers, I will post a summary here. >> >> Thanks, >> David >> >> >> >> -- >> Dr. David Reitter >> Research Psychologist, Department of Psychology, Carnegie Mellon University >> 08/2012: Assistant Professor of Information Sciences and Technology, Penn State University >> http://www.david-reitter.com >> >> >> _______________________________________________ >> ACT-R-users mailing list >> ACT-R-users at act-r.psy.cmu.edu >> http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users > > =============================================== > Niels Taatgen - Professor > University of Groningen, Artificial Intelligence > web: http://www.ai.rug.nl/~niels email: niels at ai.rug.nl > Telephone: +31 50 3636435 > =============================================== > > > > > > > > _______________________________________________ > ACT-R-users mailing list > ACT-R-users at act-r.psy.cmu.edu > http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users > _______________________________________________ ACT-R-users mailing list ACT-R-users at act-r.psy.cmu.edu http://act-r.psy.cmu.edu/mailman/listinfo/act-r-users From f.j.mcneill at ed.ac.uk Mon Jul 16 07:33:59 2012 From: f.j.mcneill at ed.ac.uk (Fiona McNeill) Date: Mon, 16 Jul 2012 12:33:59 +0100 Subject: [ACT-R-users] Final CFP: ISWC'12 Workshop on Discovering Meaning On the Go in Large & Heterogeneous Data (LHD-12) Message-ID: Apologies for cross-posting ------------------------------------------------------------------------------ Call for papers for LHD-12 workshop at ISWC-12, 11 or 12 November 2012, Boston: The 2nd Workshop on Discovering Meaning On the Go in Large & Heterogeneous Data http://dream.inf.ed.ac.uk/events/lhd-12/ ------------------------------------------------------------------------------ An interdisciplinary approach is necessary to discover and match meaning dynamically in a world of increasingly large data sources. This will be a half-day workshop which will bring together practitioners from academia, industry and government to participate in discussion and debate. It will involve * A panel discussion focussing on these issues from an industrial and governmental point of view. Membership to be confirmed, but we expect a representative from Scottish Government and from Google, as well as others. * Short presentations grouped into themed panels, to stimulate debate not just about individual contributions but also about the themes in general. This is a continuation of the LHD-11 workshop (http://dream.inf.ed.ac.uk/events/lhd-11/). Workshop Description The problem of semantic alignment - that of two systems failing to understand one another when their representations are not identical - occurs in a huge variety of areas: Linked Data, database integration, e-science, multi-agent systems, information retrieval over structured data; anywhere, in fact, where semantics or a shared structure are necessary but centralised control over the schema of the data sources is undesirable or impractical. Yet this is increasingly a critical problem in the world of large scale data, particularly as more and more of this kind of data is available over the Web. In order to interact successfully in an open and heterogeneous environment, being able to dynamically and adaptively integrate large and heterogeneous data from the Web "on the go" is necessary. This may not be a precise process but a matter of finding a good enough integration to allow interaction to proceed successfully, even if a complete solution is impossible. Considerable success has already been achieved in the field of ontology matching and merging, but the application of these techniques - often developed for static environments - to the dynamic integration of large-scale data has not been well studied. Presenting the results of such dynamic integration to both end-users and database administrators - while providing quality assurance and provenance - is not yet a feature of many deployed systems. To make matters more difficult, on the Web there are massive amounts of information available online that could be integrated, but this information is often chaotically organised, stored in a wide variety of data-formats, and difficult to interpret. This area has been of interest in academia for some time, and is becoming increasingly important in industry and - thanks to open data efforts and other initiatives - to government as well. The aim of this workshop is to bring together practitioners from academia, industry and government who are involved in all aspects of this field: from those developing, curating and using Linked Data, to those focusing on matching and merging techniques. Topics of interest include, but are not limited to: * Integration of large and heterogeneous data * Machine-learning over structured data * Ontology evolution and dynamics * Ontology matching and alignment * Presentation of dynamically integrated data * Incentives and human computation over structured data and ontologies * Ranking and search over structured and semi-structured data * Quality assurance and data-cleansing * Vocabulary management in Linked Data * Schema and ontology versioning and provenance * Background knowledge in matching * Extensions to knowledge representation languages to better support change * Inconsistency and missing values in databases and ontologies * Dynamic knowledge construction and exploitation * Matching for dynamic applications (e.g., p2p, agents, streaming) * Case studies, software tools, use cases, applications * Open problems * Foundational issues Applications and evaluations on data-sources that are from the Web and Linked Data are particularly encouraged. Submission LHD-12 invites submissions of papers of no more than 8 pages. Position papers of 2-3 pages are also encouraged. Papers will be accepted on the basis of interesting content that will stimulate discussion, and are not required to describe work that is completed or extensively evaluated, though such work is also encouraged. All accepted papers will be published as part of the ISWC workshop proceedings, and will be available online from the workshop website. The previous workshop resulted in a special issue of the Artificial Intelligence Review, and we will consider another special issue following this workshop. All contributions should be in pdf format and should be uploaded via http://www.easychair.org/conferences/?conf=lhd12. Authors should use the LNCS style (http://www.springer.com/computer/lncs?SGWID=0-164-6793341-0). Important Dates Submission: July 31, 2012 Notification: August 31, 2012 Camera ready: September 10, 2012 Early registration: TBA Late registration: TBA Workshop: November 11 or 12, 2012 Organising Committee: Fiona McNeill (University of Edinburgh) Harry Halpin (Yahoo! Research) Andriana Gkaniatsou (University of Edinburgh) Program committee: Krisztian Balog (University of Amsterdam) Alan Bundy (University of Edinburgh) Vinay Chaudri (SRI) James Cheney (University of Edinburgh) Oscar Corcho (Universidad Polit?cnica de Madrid) Jerome Euzenat (INRIA Grenoble Rhone-Alpes) Eraldo Fernandez (Pontif?cia Universidade Cat?lica do Rio de Janeiro) Pascal Hitzler (Wright State University) Tom McCutcheon (Dstl) Shuai Ma (Beihang University) Adam Pease (Articulate Software) David Roberston (University of Edinburgh) Peter Winstanley (Scottish Government) From ophir at bc2013.org Fri Jul 20 23:10:04 2012 From: ophir at bc2013.org (frizzy) Date: Sat, 21 Jul 2012 07:10:04 +0400 Subject: [ACT-R-users] Invitation to Conference: The Brain- when Science meets Cognition Message-ID: <2831dfd989fa90175c9991c4067ac44d@bc2013.org> Unsubscribe me from this listhttp://bc2013.org/docs/unsubscribe.php?M=553576&C=9a156d306bd4b1c2790f8ffd64a9fc87&L=11&N=13 Invitation - and call for abstracts to The Jerusalem International Conference on Neuroplasticity and Cognitive Modifiability (The role of Cognitive intervention in the shaping of man) Information in English, Fran?ais, Deutsch, Espa?ol, Italiano www.brainconvention.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From db30 at andrew.cmu.edu Tue Jul 24 14:13:11 2012 From: db30 at andrew.cmu.edu (db30 at andrew.cmu.edu) Date: Tue, 24 Jul 2012 14:13:11 -0400 Subject: [ACT-R-users] ACT-R Workshop schedule available Message-ID: <1AFBD1131113DFB9FACB3A85@actr6b.cmu.edu> The schedule for the ACT-R Workshop is now available from the ACT-R website: If you have not yet registered, you can still do so at: or you can register Friday morning before the workshop if you are unable to do so in advance. See you at the workshop, Dan