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Repeated-task Canadian Traveler Problem

Zahy Bnaya, Ariel Felner, Dror Fried, Olga Maksin, Solomon Eyal Shimony
2015 AI Communications  
In the Canadian Traveler Problem (CTP) a traveling agent is given a graph, where some of the edges may be blocked, with a known probability.  ...  We generalize CTP to a repeated task version where a number of agents need to travel to the same goal, minimizing their combined travel cost.  ...  Introduction The Canadian Traveler Problem (CTP) (Nikolova and Karger 2008; Papadimitriou and Yannakakis 1991; Bar-Noy and Schieber 1991) is a navigation problem where traveling agent receives a graph  ... 
doi:10.3233/aic-150665 fatcat:zjypquqfivdlphjgz5pcrodynq

Exploring the Consequences of IED Deployment with a Generalized Linear Model Implementation of the Canadian Traveller Problem [article]

Andrew C. Thomas, Stephen E. Fienberg
2010 arXiv   pre-print
Among other related approaches (which we discuss), the adversarial problem has an analogue in the Canadian Traveller Problem, wherein a stretch of road is blocked with some independent probability, and  ...  the state of the road is only discovered once the traveller reaches one of the intersections that bound this stretch of road.  ...  Canadian Traveller Betweenness: How Much A Single Road Blockage Changes Travel Time We now introduce the essence of the Canadian Traveller Problem to this modelling approach.  ... 
arXiv:1012.4185v1 fatcat:npxk7poygvatvhd7jfs5at3fbe

Cultural differences in complex addition: Efficient Chinese versus adaptive Belgians and Canadians

Ineke Imbo, Jo-Anne LeFevre
2009 Journal of Experimental Psychology. Learning, Memory and Cognition  
However, large differences among cultures persist, despite extensive travel opportunities and cross-cultural interactions.  ...  The present study tested the effects of working-memory load on math problem solving in three different cultures: Flemish-speaking Belgians, English-speaking Canadians, and Chinesespeaking Chinese currently  ...  The participant had to retain these letters and repeat them aloud after three consecutive complex arithmetic problems.  ... 
doi:10.1037/a0017022 pmid:19857017 fatcat:hhkqqohgfresddjqzokyqd7zou

Page 34 of Library Resources & Technical Services Vol. 52, Issue 2 [page]

2008 Library Resources & Technical Services  
In addition, she recognized the general problem that a specialized list faces in creating a syndetic structure with a limited number of headings.  ...  34 Holley 1966 “partial edition,” subdivision and providing specific period subdivisions for adding Toronto as the example city each on under the topical subdivisions a and travel,” “Economic conditions  ... 

Task-Structure Based Mediation: The Travel-Planning Assistant Example [chapter]

Qihua Situ, Eleni Stroulia
2000 Lecture Notes in Computer Science  
We illustrate this architecture with the description of a travel-planning assistant that supports the users in an exploratory, least-commitment search behavior.  ...  In this paper, we discuss a multi-agent architecture for integration of WEB applications within a domain, based on a task-structure approach.  ...  The search task structure of the travel-assistant mediator is designed for ill-structured problems, where a precise specification of the desired output is not available and instead, the user explores the  ... 
doi:10.1007/3-540-45486-1_34 fatcat:ixjd5ffmgjgovaagpvvg3orxpq

Partitioning cursor movements in "point and click" tasks

Faustina Hwang
2003 CHI '03 extended abstracts on Human factors in computer systems - CHI '03  
Studies of cursor trajectories can help explain performance differences in "point and click" tasks.  ...  This paper proposes a method of partitioning a cursor trajectory into a travel and a select phase.  ...  This work is funded by the Canadian Cambridge Trust and NSERC.  ... 
doi:10.1145/765916.765927 fatcat:tqj2dhi5ezax3pm6sdfhce5xkq

Partitioning cursor movements in "point and click" tasks

Faustina Hwang
2003 CHI '03 extended abstracts on Human factors in computing systems - CHI '03  
Studies of cursor trajectories can help explain performance differences in "point and click" tasks.  ...  This paper proposes a method of partitioning a cursor trajectory into a travel and a select phase.  ...  This work is funded by the Canadian Cambridge Trust and NSERC.  ... 
doi:10.1145/765891.765927 dblp:conf/chi/Hwang03 fatcat:scc7st3zyvdnnfn3fcyku5thza

Page 331 of Psychological Abstracts Vol. 64, Issue 2 [page]

1980 Psychological Abstracts  
Canadian Journal of Behavioural Science, 1979%Jan), Vol 11(1), 64-71.  ...  related to the complexity of the task.  ... 

Anatomy of Cognitive Strategies: A Therapist's Primer for Enabling Occupational Performance

Joan P. Toglia, Sylvia A. Rodger, Helene J. Polatajko
2012 Canadian Journal of Occupational Therapy / Revue Canadienne d`Ergotèrapie  
) Use different "home" when traveling Framework and PD •  ...  .  can improve an individual's learning, problem solving, and task performance in terms of efficiency, speed, accuracy, and consistency" (Toglia et al.,2012, p.227 ).  ... 
doi:10.2182/cjot.2012.79.4.4 pmid:23210372 fatcat:bxifi4ul7re7tlq4gkgi266xzm

Malaria deaths in visitors to Canada and in Canadian travellers: a case series

K C Kain, D W MacPherson, T Kelton, J S Keystone, J Mendelson, J D MacLean
2001 CMAJ - Canadian Medical Association Journal  
We report 7 deaths due to falciparum malaria that occurred in Canada or in Canadian travellers.  ...  Over the last decade there has been a marked increase in case of drug-resistant and severe malaria in Canadian travellers.  ...  and the physicians who care for them. 1 This task could be facilitated by support from the travel industry 19 and airlines, which can already identify high-risk travellers through their itineraries  ... 
pmid:11258214 pmcid:PMC80821 fatcat:qkwimqnb35ey7jurla4utwi6ye

Highway of the Atom

Lindsey A. Freeman
2012 Canadian Journal of Communication  
The task is to write the terrible history of the Highway before it is too late. Lindsey A. Freeman, The New School for Social Research Canadian Journal of Communication, Vol 37(2)  ...  Sometimes, though, theory obscures and complicates an already knotty problem or creates too long a diversion.  ... 
doi:10.22230/cjc.2012v37n2a2557 fatcat:jrx7wcvlc5er7j445ajkexczgy

Path Finding under Uncertainty through Probabilistic Inference [article]

David Tolpin, Brooks Paige, Jan Willem van de Meent, Frank Wood
2015 arXiv   pre-print
We evaluate the new approach on the Canadian Traveler Problem, which we formulate as a probabilistic model, and show how probabilistic inference allows high performance stochastic policies to be obtained  ...  for this problem.  ...  Case Study: Canadian Traveller Problem We evaluated the proposed policy learning scheme on the Canadian Traveller Problem (Algorithm 2).  ... 
arXiv:1502.07314v3 fatcat:llo22zjlnfg6ppbdqi6ab73cou

Mapping malaria

K. N. Suh
2004 CMAJ - Canadian Medical Association Journal  
Committee to Advise on Tropical Medicine and Travel (CATMAT). Canadian recommendations for the prevention and treatment of malaria among international travelers 2004.  ...  If the result of the initial DEXA is normal, we recommend repeating this test in 2 years.  ... 
doi:10.1503/cmaj.1041439 fatcat:crfissjftncy3gopj4skw5zoga

Who Walks the Walk and Talks the Talk? Understanding What Influences Sustainability Behaviour in Business and Leisure Travellers

Rachel Dodds, Mark Robert Holmes
2022 Sustainability  
To facilitate this investigation, a quantitative study of 869 Canadian travellers in March of 2020 was undertaken.  ...  While there is considerable research into what drives tourists to travel sustainably, little has been done to examine business travellers and how they differ from leisure travellers.  ...  Never 0.054 0.017 ** 0.029 0.013 * Repeat Sometimes 0.048 0.015 ** 0.026 0.011 * Repeat Frequently Domestic Travel 0.001 0.001 * 0.001 0 International Travel 0.002 0.001 *** 0.001 0 *** Typically Travel  ... 
doi:10.3390/su14020883 fatcat:ljm32h2v7vc47edc6ncrk7oxm4

Page 141 of International Affairs Vol. 26, Issue 1 [page]

1950 International Affairs  
As he says in one of his dramatic phrases, ‘the people who dis- integrated the atom have now the task of integrating humanity’ (p. 31).  ...  Notable among these are ‘Some Aspects of Canadian Rela- tions with the United States’, by Mr R. B. Bryce, and ‘The U.S.S.R. in the World Economy’, by Mr P. A. Baran.  ... 
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