{"title":"A Probabilistic Time Reversal Theorem (Poster)","authors":"K. Baclawski","doi":"10.1109/COGSIMA.2018.8423972","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8423972","url":null,"abstract":"Combining independent observations is commonly performed by using a least squares technique, as it is thought that this is necessary to achieve an optimal solution. The purpose of this article is to show that this is not always the case. The particular example combines observations that are exponentially distributed. One application of this technique is to determine the time of a singular event which initiated a set of decay processes having known half-lives. The time of the singular event decays backwards in time with an exponential distribution. We find that the accuracy of this method is significantly better than the accuracy of a least squares technique. The improved accuracy can be important for applications that require combining many noisy observations, such as situation awareness.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121912763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Action Selection Under Uncertainty and Risk Involving High Consequence Rare Events","authors":"G. Rogova, R. Ilin","doi":"10.1109/COGSIMA.2018.8424001","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8424001","url":null,"abstract":"This paper describes an approach to decision making for action selection in the presence of high consequence rare events. A model presented in the paper is an adaptation of the Multiple Quantile Theory that evaluates actions based on Choquet utility while considering decision making attitudes towards gains and losses. In our model, the capacities used for computing Choquet utility are based on the belief structure resulting from situation assessment, which allows for eliminating a priori parameter selection required by the Multiple Quantile Theory. A use case designed to illustrate the feasibility of the model in a simple military scenario is also presented.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131285216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eric G. Heilman, Justine P. Caylor, J. Richardson, Alexis R. Neigel, T. Hanratty
{"title":"ACT-R Modeling of Intelligence Analysts’ Perception of Information to Improve Situational Understanding","authors":"Eric G. Heilman, Justine P. Caylor, J. Richardson, Alexis R. Neigel, T. Hanratty","doi":"10.1109/COGSIMA.2018.8423985","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8423985","url":null,"abstract":"For the military, one of the central challenges associated with developing good situational understanding originates with the information. The character of today’s battlefield features a high volume of information across multiple sources and threatens to overwhelm traditional methods of review.Confounding this effort is the fact that the information received often has varying degrees of agreement (i.e., complementary or contradictory). Timely review requires the development of automated assist methods that identify and prioritize the most valuable and applicable information for mission success. One method to improve military situational awareness and decisionmaking is the ability to amalgamate information across various sources and content. Towards this end, this paper presents the development and evaluation of an Adaptive Control of ThoughtRationale (ACT-R) model to understand the cognitive steps and processes employed by intelligence analysts as they value information.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131322505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Situations, Information, and Evidence (Late Breaking Report)","authors":"A. Esterline, William Nick, Janelle C. Mason","doi":"10.1109/COGSIMA.2018.8423970","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8423970","url":null,"abstract":"We are concerned with information used as evidence for hypotheses of the identity of a culprit in a crime scene. We adapt Barwise’s situation theory: situations support information and carry information about other situations. An id-case is a constellation of situations involving one where an identity judgment is made. We here introduce the notion of a causal chain of information as a sequence of situations by which information is captured, managed, and communicated. An idcase is a confluence of such chains. Barwise discussed only one information-relevant action, viz., utterance, while we in this paper recognize many kinds and the objects they inform. We sketch our ontologies that provide the concepts used in encoding our cases.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114992198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CogSIMA 2018 Program Page","authors":"","doi":"10.1109/cogsima.2018.8423988","DOIUrl":"https://doi.org/10.1109/cogsima.2018.8423988","url":null,"abstract":"","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133822601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Throughput and Channel Occupancy Time fairness trade-off for Downlink LAA-Cat4 and WiFi Coexistence Based on Markov Chain (poster)","authors":"S. Tuladhar, Lei Cao, R. Viswanathan","doi":"10.1109/COGSIMA.2018.8424002","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8424002","url":null,"abstract":"License Assisted Access (LAA) is a feature in 3GPP Rel-13 which is the global standard for LTE deployment in the unlicensed band. While the availability of large amount of extra spectrum in unlicensed band is always desirable, the coexistence of LAA and WiFi with an acceptable fairness is a primary challenge. This paper extends the works previously done on evaluation of downlink throughput performance of LAA and WiFi coexistence using analytical framework based on Markov Chains, to evaluate performance of the channel occupancy time for fully saturated traffic. Numerical results from the models show that initial contention window size is an important parameter for LAA system to adjust for either Throughput or Channel Occupancy Time fairness but both the specifications cannot be met simultaneously. The results also show that the trade-off is more significant when the number of LAAs outnumber WiFis and the case is no different using a single channel or two channels for transmission. Abstract)","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122187138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adam Fouse, Chad Weiss, Ryan Mullins, C. Hanna, Ben Nargi, Daniel F. Keefe
{"title":"Multimodal Interactions In Multi-Display Semi-Immersive Environments","authors":"Adam Fouse, Chad Weiss, Ryan Mullins, C. Hanna, Ben Nargi, Daniel F. Keefe","doi":"10.1109/COGSIMA.2018.8423999","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8423999","url":null,"abstract":"Spatial navigation of virtual environments often requires different categories of navigation actions. In this paper, we describe a mapping between different forms of navigation and multimodal interactions to accomplish the actions. We select and define three forms of navigation, identify characteristics of those forms, and describe interactions that were selected to match those characteristics. We developed these mappings within a multidisplay, semi-immersive environment assembled from commodity components, with a goal of supporting use of similar semiimmersive environments in operational settings. In designing the interaction mappings, we considered both the constraints imposed by the environment as well as likely tasks of the targeted user populations. The goal of creating the mappings is to enable fast, natural, and efficient interactions, and minimize attention shifting.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124492107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distributed Detection of Correlated Signal Using Markov Chain Monte Carlo (Poster)","authors":"Xingjian Sun, Lei Cao, R. Viswanathan","doi":"10.1109/COGSIMA.2018.8423984","DOIUrl":"https://doi.org/10.1109/COGSIMA.2018.8423984","url":null,"abstract":"The distributed detection problem with consideration of correlated sensor observations is an NP-hard problem. In this paper, a heuristic Markov Chain Monte Carlo algorithm, which consists of methods of slice sampling and simulated annealing, is investigated to solve this problem. Based on the criterion of minimizing the probability of error, sub-optimal solutions including fusion rules and sensor decisions are acquired. The performance of this algorithm is studied with analysis of experimental results.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123162126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Situation Granularity","authors":"Giuseppe D’aniello, M. Gaeta","doi":"10.1109/cogsima.2018.8423979","DOIUrl":"https://doi.org/10.1109/cogsima.2018.8423979","url":null,"abstract":"Granular computing is emerging as a new theory of computation based on representing and processing basic chunks of data, namely the information granules. Granular computing shares many concept and principles with the situation awareness paradigm, as both are focused on supporting the human capabilities of processing information, solving problems and making decisions. Accordingly, this work proposes a model for representing situations based on granular structures that sustains a computational approach in which granular computing mechanisms are used to support situation awareness. The model defines the concept of situation granularity as a measure to compare different situations, sustaining both comprehension and projection phases in the situation awareness assessment process. An illustrative example in the air traffic control domain demonstrates the validity of the proposed model.","PeriodicalId":231353,"journal":{"name":"2018 IEEE Conference on Cognitive and Computational Aspects of Situation Management (CogSIMA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116426152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}