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Learning in situ: a randomized experiment in video streaming [article]

Francis Y. Yan, Hudson Ayers, Chenzhi Zhu, Sadjad Fouladi, James Hong, Keyi Zhang, Philip Levis, Keith Winstein
2019 arXiv   pre-print
We describe the results of a randomized controlled trial of video-streaming algorithms for bitrate selection and network prediction.  ...  We developed an ABR algorithm that robustly outperforms other schemes in practice, by combining classical control with a learned network predictor, trained with supervised learning in situ on data from  ...  We certainly see a benefit from learning in situ (Figure 11 shows catastrophic behavior from a TTP learned in a network emulation), but our practice of daily retraining in situ appears to be overkill  ... 
arXiv:1906.01113v2 fatcat:f24lc547fzhe3mvvetrtcijb4q

In-situ Droplet Monitoring of Inkjet 3D Printing Process using Image Analysis and Machine Learning Models

Michael Ogunsanya, Joan Isichei, Santosh Kumar Parupelli, Salil Desai, Yi Cai
2021 Procedia Manufacturing  
This paper aims to address this issue by presenting a novel vision-based approach for in-situ monitoring of droplet formation.  ...  A drop watcher camera was used to capture a sequence of videos obtained from different combinations of voltage and frequency.  ...  and Advanced Manufacturing at North Carolina A&T State University.  ... 
doi:10.1016/j.promfg.2021.06.045 fatcat:uwy3sttmajaanh7uih7kw2rcei

Transfer Learning using Representation Learning in Massive Open Online Courses [article]

Mucong Ding, Yanbang Wang, Erik Hemberg, Una-May O'Reilly
2018 arXiv   pre-print
In a Massive Open Online Course (MOOC), predictive models of student behavior can support multiple aspects of learning, including instructor feedback and timely intervention.  ...  Results show improved model transferability and suggest that the methods are capable of automatically learning a feature representation that expresses common predictive characteristics of MOOCs.  ...  Note that the performance of In-Situ Learning and In-Situ Learning learning does not work well until the final weeks of the course since it applies a sliding window and a considerable proportion of information  ... 
arXiv:1812.05043v2 fatcat:pwqc4vft6nd3llcvumto3niicu

Automatic In Situ Identification of Plankton

M.B. Blaschko, G. Holness, M.A. Mattar, D. Lisin, P.E. Utgoff, A.R. Hanson, H. Schultz, E.M. Riseman
2005 2005 Seventh IEEE Workshops on Applications of Computer Vision (WACV/MOTION'05) - Volume 1  
The images were obtained in situ by an instrument known as the Flow Cytometer And Microscope (FlowCAM), that detects particles from a stream of water siphoned directly from the ocean.  ...  In this paper, we present a technique for automatic identification of plankton using a variety of features and classification methods including ensembles.  ...  The fourth author is supported by a fellowship from Eastman Kodak Company Research Labs.  ... 
doi:10.1109/acvmot.2005.29 dblp:conf/wacv/BlaschkoHMLUHSRSBT05 fatcat:erlhkpreg5hafb3bf3a6ac7sla

Efficient in-situ image and video compression through probabilistic image representation [article]

Rongjie Liu, Meng Li, Li Ma
2020 arXiv   pre-print
Extensive numerical experiments using a variety of datasets including 2D still images, real-life YouTube videos, and surveillance videos show that CARP dominates the state-of-the-art image/video compression  ...  CARP uses a multi-layer Bayesian hierarchical model to achieve in-situ compression along with self-tuning and regularization, with just one single parameter to be specified by the user to achieve the desired  ...  In general, BPG is often advantageous over JPEG and maintains the properties of H.265 because one BPG image takes a single frame out of an H.265 video stream.  ... 
arXiv:1912.05622v3 fatcat:vrdo6v64vzdurluivy73dtld3i

Automatic Curriculum Generation for Learning Adaptation in Networking [article]

Zhengxu Xia
2022 arXiv   pre-print
Through evaluating Genet on three use cases--adaptive video streaming, congestion control, and load balancing, we show that Genet produces RL policies which outperform both regularly trained RL policies  ...  However, applying curriculum learning in networking is challenging because it remains unknown how to measure the "difficulty" of a network environment.  ...  [53] achieves a similar goal through learning a transmission time predictor in situ.  ... 
arXiv:2202.05940v1 fatcat:mlvfukfjnngqbhdwnvevbnjgdy

Blended Learning in Indian Colleges with Massively Empowered Classroom

Edward Cutrell, Jacki O'Neill, Srinath Bala, B. Nitish, Andrew Cross, Nakull Gupta, Viraj Kumar, William Thies
2015 Proceedings of the Second (2015) ACM Conference on Learning @ Scale - L@S '15  
In this paper we describe a blended learning initiative that combines videos from a large online course with peer-led sessions for undergraduate technical education in India.  ...  We performed a randomized controlled trial (RCT) that indicates our intervention was associated with a small but significant improvement in performance on a summative exam.  ...  In particular we want to thank the many people at Microsoft Research India who helped keep MEC running and our partner colleges who worked with us on the interventions.  ... 
doi:10.1145/2724660.2724666 dblp:conf/lats/CutrellOBNCGKT15 fatcat:k4bebejo6bdmjk36nppjbf2gdi

Signal Processing Challenges and Examples for in-situ Transmission Electron Microscopy [article]

Josh Kacher, Yao Xie, Sven P. Voigt, Shixiang Zhu, Henry Yuchi, Jordan Key, Surya R. Kalidindi
2021 arXiv   pre-print
In this paper, we highlight a few areas in materials science that have benefited from combining signal processing and statistical analysis with data collection capabilities in TEM and present a future  ...  Taking advantage of these advances in data collection rates requires the development and application of data processing tools, including image analysis, feature extraction, and streaming data processing  ...  This is necessary both for processing large data sets and, with future applications in mind, for in-line analysis during in-situ experimentation. II. OVERVIEW A.  ... 
arXiv:2104.08688v2 fatcat:gofufjq7cvh2tnhg3u5w5so454

Perceptual-cognitive skill and the in situ performance of soccer players

Mariëtte J. J. van Maarseveen, Raôul R. D. Oudejans, David L. Mann, Geert J. P. Savelsbergh
2018 Quarterly Journal of Experimental Psychology  
Perceptual-cognitive skill as it is performed in motor tasks has typically been measured using simplified video-based  ...  Sports offer a unique, dynamic, and time-constrained environment in which perceptual-cognitive skills can be examined.  ...  The gaze behaviour of 30 randomly selected trials (i.e., 11%) was recoded by the same experimenter to assess intra-rater reliability, and a second experimenter independently coded 35 random trials (i.e  ... 
doi:10.1080/17470218.2016.1255236 pmid:27801629 fatcat:hxfoh6ws7za6xbn6p2kal6ko3a

In Situ Cues for ADHD Parenting Strategies Using Mobile Technology

Laura Pina, Kael Rowan, Paul Johns, Asta Roseway, Gillian Hayes, Mary Czerwinski
2014 Proceedings of the 8th International Conference on Pervasive Computing Technologies for Healthcare  
Our work explores how to monitor parental stress and offers in situ support to remind parents of behavioral strategies to practice in moments of duress.  ...  This type of therapy focuses on behavioral strategies that, if practiced regularly, can have a positive impact on the child's long-term behavior, as well as a reduction in parental stress.  ...  Also, affect plays a role in learning and emotional response [17] .  ... 
doi:10.4108/icst.pervasivehealth.2014.254958 dblp:conf/ph/PinaRRJHC14 fatcat:uovljggxxvayroxxudfkmbxbei

Visual information underpinning skilled anticipation: The effect of blur on a coupled and uncoupled in situ anticipatory response

D. L. Mann, B. Abernethy, D. Farrow
2010 Attention, Perception & Psychophysics  
stream has learned to rely on.  ...  in situ.  ... 
doi:10.3758/app.72.5.1317 pmid:20601713 fatcat:bnkf232nbbb4lo6gydxdiignku

D4.5 ARETE Use Scenarios: Analysis of Educational Technologies Usage in Situ – UPDATE

2022 Zenodo  
This deliverable D4.5 reports the evaluation methods and results that WP4 has implemented and obtained since the submission of D4.2 in M18.  ...  A workshop was held where emergent XR devices (e.g., smart glasses) and innovative methods (e.g., multisensory fusion) were explored.  ...  AR mode text consistency issues Some text in the user interfaces do not have a background which makes them difficult to read over the camera stream.  ... 
doi:10.5281/zenodo.6482644 fatcat:cihbnmefpvfdpfyqkbxkjrccme

Roving Focus Groups: Collecting Perceptual Landscape Data in Situ

Dennis B. Propst, Maureen H. McDonough, Christine A. Vogt, Dori M. Pynnonen
2008 International Journal of Qualitative Methods  
In 2004 and 2005 the authors experimented with roving focus groups in the rural landscape of Michigan (USA).  ...  As they moved along in a vehicle, participants discussed features that contributed to and detracted from rural landscape character. Results from a follow-up survey supported focus group themes.  ...  In what Olsen described as a dialectical learning process, one set of results informed and modified the interpretation of the other.  ... 
doi:10.1177/160940690800700301 fatcat:wznt7cgrznfpbnw6abvvaoghby


Henrikke Dybvik, Christian Kuster Erichsen, Martin Steinert
2021 Proceedings of the Design Society  
AbstractWe developed a wearable experimental sensor setup featuring multimodal EEG+fNIRS neuroimaging applicable for in situ experiments of human behavior in interaction with technology.  ...  This paper (Paper B) demonstrate the setup';s usability in three distinct use cases: a conventional human-computer interaction experiment, an in situ driving experiment where participants drive a car in  ...  Lessons learned -The setup enable in situ studies of important research topics Changing experimental setup from a stationary classical experiment room to a mobile in situ car driving experiment did not  ... 
doi:10.1017/pds.2021.90 fatcat:46rooga5g5fj3hcdflqmlhs4xy

Examination of gaze behaviors under in situ and video simulation task constraints reveals differences in information pickup for perception and action

Matt Dicks, Chris Button, Keith Davids
2010 Attention, Perception & Psychophysics  
Examination of gaze behaviors under in situ and video simulation task constraints reveals differences in the information used for perception and action  ...  Gaze and movement behaviors of association football goalkeepers were compared under two video simulation conditions (i.e., verbal and joystick movement responses) and three in situ conditions (i.e., verbal  ...  Procedure Goalkeepers faced penalty kicks in five different experimental conditions: video simulation verbal (VSV), video simulation movement (VSM), in situ verbal (ISV), in situ movement (ISM), and in  ... 
doi:10.3758/app.72.3.706 pmid:20348577 fatcat:tj4y4gkvijfj3ibo24rjsahijm
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