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Chasing Ghosts: Instruction Following as Bayesian State Tracking [article]

Peter Anderson, Ayush Shrivastava, Devi Parikh, Dhruv Batra, Stefan Lee
2019 arXiv   pre-print
Based on this intuition, we formulate the problem of finding the goal location in Vision-and-Language Navigation (VLN) within the framework of Bayesian state tracking - learning observation and motion  ...  A visually-grounded navigation instruction can be interpreted as a sequence of expected observations and actions an agent following the correct trajectory would encounter and perform.  ...  The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the  ... 
arXiv:1907.02022v2 fatcat:57o2qslqhbcfzceelapp2c3t6u

Vision and Language Navigation Using Minimal Voice Instructions

Ansh Shah, Parth Kansara, Parth Meswani, Prof. Prachi Tawde
2021 Zenodo  
For the testing phase, a natural language instruction, specifying the goal location is taken as input.  ...  Abstract— The proposed system aims to design an algorithm that can be used to navigate any 3-D mapped environment, using the Matterport 3D Simulator by giving only minimal voice instructions.  ...  Chasing Ghosts [1] predicts a probability distribution on the Vol. 3 C. Chasing Ghosts: Instruction Following as Bayesian State Tracking Peter X.  ... 
doi:10.5281/zenodo.5090533 fatcat:h32myxno5vgjperosrxh7tahfm

Learning and Generalization under Ambiguity: An fMRI Study

J. R. Chumbley, G. Flandin, D. R. Bach, J. Daunizeau, E. Fehr, R. J. Dolan, K. J. Friston, Tim Behrens
2012 PLoS Computational Biology  
These findings suggest candidate neuronal systems that may be involved in aberrations of generalization, such as over-confidence.  ...  These findings suggest candidate neuronal systems that may be involved in aberrations of generalization, such as over-confidence.  ...  M2 is ignorant about each new individual and myopically chases reward.  ... 
doi:10.1371/journal.pcbi.1002346 pmid:22275857 pmcid:PMC3262009 fatcat:s45ijlu6efey3nxkqjur2it2fa

On the use of agent technology in intelligent, multisensory and distributed surveillance

José M. Gascueña, Antonio Fernández-Caballero
2011 Knowledge engineering review (Print)  
This article revises the state of the art of the application of agent technology within the scope of surveillance systems.  ...  As far as objects are concerned, each object tracked (pedestrian or vehicle) is assigned to a behavior agent, which uses a Bayesian network to infer the fundamental characteristics of the object's trajectory  ...  Fusion of sensor data will enable the recognition of individual and group behavior such as a car going over the speed limit or several cars being involved in a high speed chase.  ... 
doi:10.1017/s0269888911000026 fatcat:72b3jx6wurb6daoylicir2el4a

Robust Sensing of Approaching Vehicles Relying on Acoustic Cues

Mitsunori Mizumachi, Atsunobu Kaminuma, Nobutaka Ono, Shigeru Ando
2014 Sensors  
This paper proposes a novel sensing technique for catching up and tracking an approaching vehicle relying on an acoustic cue.  ...  Then, the spatial feature is filtered out through sequential state estimation. A particle filter is employed to cope with a highly non-linear problem.  ...  x x (24) Particle Filtering Sequential state estimation is done by particle filtering in the Bayesian framework [7] .  ... 
doi:10.3390/s140609546 pmid:24887038 pmcid:PMC4118411 fatcat:6w2nlq6hzbgzlenrhcxw6zu5x4

SOON: Scenario Oriented Object Navigation with Graph-based Exploration [article]

Fengda Zhu, Xiwen Liang, Yi Zhu, Xiaojun Chang, Xiaodan Liang
2021 arXiv   pre-print
To give a promising direction to solve this task, we propose a novel graph-based exploration (GBE) method, which models the navigation state as a graph and introduces a novel graph-based exploration approach  ...  In this task, an agent is required to navigate from an arbitrary position in a 3D embodied environment to localize a target following a scene description.  ...  Chasing ghosts: Instruc- Computer Vision and Pattern Recognition Workshops tion following as bayesian state tracking.  ... 
arXiv:2103.17138v2 fatcat:24yoqxomlff5lbbgdvzboxk64a

How Much Can CLIP Benefit Vision-and-Language Tasks? [article]

Sheng Shen, Liunian Harold Li, Hao Tan, Mohit Bansal, Anna Rohrbach, Kai-Wei Chang, Zhewei Yao, Kurt Keutzer
2021 arXiv   pre-print
We achieve competitive or better results on diverse V&L tasks, while establishing new state-of-the-art results on Visual Question Answering, Visual Entailment, and V&L Navigation tasks.  ...  We show that CLIP significantly outperforms widely-used visual encoders trained with in-domain annotated data, such as BottomUp-TopDown.  ...  Chasing ghosts: Instruction following as bayesian state tracking. In NeurIPS.  ... 
arXiv:2107.06383v1 fatcat:iwyntpju3fg6fcmbevlxdjch6m

Functional Representation of Prototypes in LVQ and Relevance Learning [chapter]

Friedrich Melchert, Udo Seiffert, Michael Biehl
2016 Advances in Intelligent Systems and Computing  
As in previous years, BNAIC 2016 welcomed four types of contributions, namely A) regular papers, B) compressed contributions, C) demonstration abstracts, and D) thesis abstracts.  ...  Acknowledgements The authors would like to thank Anne Hommelberg and Hendrik Jan Hoogeboom, as well as the anonymous contributors from [9]. Acknowledgments.  ...  The techniques used in this paper allow for use on other (radicalised) communities as well as building towards automatically detecting radicalism online.  ... 
doi:10.1007/978-3-319-28518-4_28 fatcat:uwxvq6txmrba3ajulmblafgh2a

Sensitive Information Detection: Recursive Neural Networks for Encoding Context [article]

Jan Neerbek
2020 arXiv   pre-print
We develop a novel family of sensitive information detection approaches which only assumes access to labeled examples, rather than unrealistic assumptions such as access to a set of generating rules or  ...  Furthermore we show that previous state-of-the-art approaches have been implicitly tailored to such simplistic scenarios and thus fail to detect actual sensitive content.  ...  In addition, we instructed the annotators as follows: For a given sentence to be annotated, the annotator is instructed to consider the type of sensitive information we are investigating, as defined in  ... 
arXiv:2008.10863v1 fatcat:qx63kenuzbdv5h6adcnsfpmogq

Assessing the feasibility of density estimation methodologies for African forest elephant at large spatial scales

A. Laguardia, K.S. Gobush, S. Bourgeois, S. Strindberg, G. Abitsi, F. Ebouta, J.M. Fay, A.M. Gopalaswamy, F. Maisels, R. Ogden, L.J.T. White, E.J. Stokes
2021 Global Ecology and Conservation  
Six of the nine surveys had a coefficient of variation below 20%; area coverage via DNA-SCR and LTDS was comparable and greatly exceeded that of the CT-SCR as applied; overall cost was highest for the  ...  Future findings and improvements should be compiled across studies to ensure their robust evolution as an option for monitoring the African forest elephant across its range and inform strategies and action  ...  We need efficient approaches to reliably estimate wildlife population state variables and vital rates (Williams et al., 2002) at different scales, and to understand and track their response to threats  ... 
doi:10.1016/j.gecco.2021.e01550 fatcat:k5raswflxzgbjpljt3lkjhkfk4

Robot games for elderly

Søren Tranberg Hansen
2011 Proceedings of the 6th international conference on Human-robot interaction - HRI '11  
Four ghosts would chase PacMan -each following different simple strategies, which would result in relative complex behaviour.  ...  As in the former experiment, the stationary tracking system was set to read the position of the test person while he would approach the robot following different patterns.  ...  As before, but the game field now consists of 10 squares. 5. As 3, but now a goal has been added which states that all players should have visited at least 3 squares before the game ends.  ... 
doi:10.1145/1957656.1957808 dblp:conf/hri/Hansen11 fatcat:nbai3ephijc77lia2smnnaiv7e

Papers Read at the 27th Annual Meeting of the Psychonomic Society

1986 Bulletin of the Psychonomic Society  
Two studies investigated this effect -one in which category verification followed read and generate instructions and another in which a Brown-Peterson trial followed each generate/read block.  ...  SEAN MORRISON, & PETER HEYWOOD, Brown University-Auditory thresholds were obtained using a tracking procedure at five frequencies (2-24 KHz) both prior to and following exposure to a 710-2800 Hz band of  ...  Both factors affected meaning as reflected in the shapes and locations of the functions. 8:25-8:45 (363) House Architecture Judgments: Bayesian, Dempster-Shafer, or Rule-Based Reasoning. PETER W.  ... 
doi:10.3758/bf03330150 fatcat:xt4bm2oruzct7chu57njr3zs6e

Econometric software: The first fifty years in perspective

Charles G. Renfro, Charles G. Renfro
2004 Journal of Economic and Social Measurement  
In Canada and the United States, the establishment of firms such as Data Resources, Chase Econometrics, and Wharton Econometric Forecasting Associates and the development of macroeconometric models in  ...  a set of Bayesian techniques, either instead of classical techniques or as a complement to those techniques.  ... 
doi:10.3233/jem-2004-0226 fatcat:yusajmlfnzgzpai36wpktyn4hq

Using participatory visual methods for information exchange about climate risk in canal estate communities

Ben Grant, Claudia Baldwin, Scott N. Lieske, Kari Martin
2015 Australian Journal of Maritime and Ocean Affairs  
The huge number of recreational anglers chasing tuna puts massive pressure on coastal infrastructure as well as local roads and town amenities. Adapting our coast as the sea rises, who will pay?  ...  field-of-views; and • on-line instruction manual and in-app donation option.  ...  This was followed in 2014 with the upgrade of the remaining two stations at the northern Gold Coast as well as the station at Narrabeen/Collaroy in Sydney.  ... 
doi:10.1080/18366503.2015.1014012 fatcat:jvxqms7icnaudjjx2hwgpygrhm

Seeking the supernatural: the Interactive Religious Experience Model

Neil Van Leeuwen, Michiel van Elk
2018 Religion, Brain & Behavior  
as God appeared to me last night).  ...  Crucially, we distinguish general religious beliefs (such as God exists) from personal religious beliefs that directly refer to the agent holding the belief or to her peripersonal time and space (such  ...  Acknowledgment This work was completed while Neil Van Leeuwen was supported by a Provost's Faculty Research Fellowship from Georgia State University.  ... 
doi:10.1080/2153599x.2018.1453529 fatcat:uahsqgqfyfcrfonnubzqfzj2za
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