UCLA Office of Advanced Research Computing (OARC)
UCLA Office of Advanced Research Computing (OARC)
  • Видео 129
  • Просмотров 269 464
Panel Discussion on Harnessing High-performance Computing across STEM Disciplines
The IDRE Early Career Researchers group's panel is a discussion on how high-performance computing (HPC) is used across STEM disciplines. It is led by the following new cohort of IDRE fellows (2023-2024) from various disciplines across the UCLA campus.
Robert Fofrich - Institute of the Environment and Sustainability
Fei-man Hsu - Department of Molecular, Cell, and Development Biology
Alec Linot - Mechanical and Aerospace Engineering
Xiao Luo - Department of Computer Science
Namjoon Suh - Department of Statistics and Data Science
Просмотров: 29

Видео

TimeAutoDiff : Combining auto-encoder and diffusion model for time series tabular synthesizing
Просмотров 3314 дней назад
Speaker: Najoon Suh, Ph.D IDRE Fellow Department of Statistics and Data Science University of California Los Angeles Abstract: In the work to be presented, we leverage the power of latent diffusion models to generate synthetic time series tabular data. Along with the temporal and feature correlations, the heterogeneous nature of the feature in the table has been one of the main obstacles in tim...
Directions to the Sandbox
Просмотров 11Месяц назад
Directions to the Sandbox
Mitigating climate change drivers and associated risks of surpassing lower emission targets
Просмотров 162Месяц назад
Robert Fofrich, Ph.D. IDRE and UC President’s Postdoctoral Fellow Institute of the Environment and Sustainability University of California Los Angeles Abstract: Lower climate change mitigation pathways require large and swift reductions in anthropogenic CO2 emissions worldwide, a substantial portion arising from fossil energy sources utilized in electricity generation. Thus, stabilizing global ...
2024 International Humanitarian Mapathon MariahTso Keynote
Просмотров 712 месяца назад
The 2024 International Humanitarian Mapathon kicks off a remarkable keynote from Mariah Tso. She set the stage for our mapping activities and why we map. Her talk also helped put into context the student protests in support of Gaza that were happening all across the United States as the mapathon began and continued. This was especially meaningful as two of our organizing schools - USC and UCLA ...
Using Topological Data Analysis to characterize fluctuations in brain activity patterns
Просмотров 1853 месяца назад
Speaker: Prof. Manish Sagger Tashia and John Morgridge Endowed Faculty Scholar in Pediatric Translational Medicine, Stanford Maternal & Child Health Research Institute Assistant Professor, Department of Psychiatry & Behavioral Sciences Principal Investigator, Brain Dynamics Lab Stanford University School of Medicine Abstract: Understanding the neurobiological underpinnings of psychiatric disord...
Interacting Dynamical System Modeling for Science: Construction and Generalization
Просмотров 903 месяца назад
Abstract: Many real-world systems such as disease transmission, molecular dynamics, and spring systems can be considered as multi-agent dynamical systems, where multiple objects interact with each other and exhibit complex behavior along the time. In this talk, I will discuss my current research on interacting dynamics system modeling for scientific problems, especially focusing on model constr...
Introduction to Meta-analysis using Stata
Просмотров 7693 месяца назад
This workshop introduces the ideas used in meta-analysis, including how to collect and organize data, how to run a basic meta-analysis, and how to interpret the output.
Annotate Digital Imagery: Theory, Applied Practice, and Tools for Research
Просмотров 704 месяца назад
Information systems since the advent of the World Wide Web have offered increasingly sophisticated and reliable tools for inquiry and scholarship based upon centuries-old practices of annotation. What are the connections and tensions between visual and verbal media? How do idiosyncratic readerly practices of scribbling in margins of a book translate into W3C standards for networked multimedia s...
Computational approaches in clinical epigenomics
Просмотров 914 месяца назад
Speaker: Fei-Man Hsu, Ph.D. IDRE Fellow Department of Molecular, Cell, and Developmental Biology University of California Los Angeles Abstract: DNA methylation signatures have high predictive value and could be used to predict health outcomes. Challenges remained in clinical studies such as the large population variations and the biopsy with mixed cell types which all contribute to DNA methylat...
Introduction to Network Analysis Methodologies and Tools
Просмотров 4554 месяца назад
Are you interested in the connections between people? Places? Concepts? Things? Do you want to visualize data in a way that is comprehensible to a human? Do you want to see how information flows through systems? Then network analysis is for you! This introductory workshop will introduce participants to network analysis, with an emphasis on its use for data-driven humanities research. Upon compl...
Digital Humanities and HPC
Просмотров 564 месяца назад
In this presentation, we will explore how the HPC can be used to accomplish common DH tasks, such as network and GIS analysis with large data sets which would be computationally difficult or expensive on typical desktop / laptop hardware. We will use least-cost pathing with GDAL, network analysis with Python, and general DH data analysis and visualization with Jupyter Notebooks. This workshop i...
Contextualizing Collections: Intro to Immersive Annotated 360 Virtual Tours with Adobe Captivate
Просмотров 1135 месяцев назад
Most would agree that in terms of creating virtual experiences as part of research, more context is better. Contextual information allows for a bigger picture to be seen and can provide in situ understanding, despite being remote. With the proliferation of 360 cameras, creating immersive virtual tours has become more commonplace. Whether it is to document the layout of a hydroelectric power pla...
Data-driven prediction of vortex dynamics with hierarchical graph neural networks
Просмотров 2445 месяцев назад
Abstract: Forecasting the dynamics of fluid flows plays a crucial role in our understanding of processes such as the swimming of fish, turbulence on a plane, and hurricane formation. Unfortunately, simulating these systems can be prohibitively expensive even though we often know the equations of motion. Due to this high computational cost, major effort has gone toward developing reduced-order m...
How to access SAS OnDemand?
Просмотров 1857 месяцев назад
How to create a SAS profile and launch SAS OnDemand.
Epidemic Model Guided Machine Learning for COVID-19 Forecasts
Просмотров 2518 месяцев назад
Epidemic Model Guided Machine Learning for COVID-19 Forecasts
Comprehensive Lexical Resource for English Using Bayesian Deep Learning and Missing Data Methodology
Просмотров 828 месяцев назад
Comprehensive Lexical Resource for English Using Bayesian Deep Learning and Missing Data Methodology
ECR OpenScience workshop March 24, 2022 - part 1
Просмотров 758 месяцев назад
ECR OpenScience workshop March 24, 2022 - part 1
Unsupervised Discovery of Ancestry Informative Markers and Genetic Admixture Proportions
Просмотров 2058 месяцев назад
Unsupervised Discovery of Ancestry Informative Markers and Genetic Admixture Proportions
High Performance Machine Learning Using Scikit-Learn
Просмотров 2668 месяцев назад
High Performance Machine Learning Using Scikit-Learn
Learning Scikit-Learn
Просмотров 5358 месяцев назад
Learning Scikit-Learn
Intro to Julia: A fast dynamic language for statistical computing and data science
Просмотров 3429 месяцев назад
Intro to Julia: A fast dynamic language for statistical computing and data science
Dynamic multivariate task fMRI analysis using Partial Least Squares in Matlab
Просмотров 2619 месяцев назад
Dynamic multivariate task fMRI analysis using Partial Least Squares in Matlab
Cloud computing workshops: Introduction (Part 3)
Просмотров 9310 месяцев назад
Cloud computing workshops: Introduction (Part 3)
Cloud computing workshops: Introduction (Part 2)
Просмотров 6310 месяцев назад
Cloud computing workshops: Introduction (Part 2)
Cloud computing workshops: Introduction (Part 1)
Просмотров 16810 месяцев назад
Cloud computing workshops: Introduction (Part 1)
Package management using Anaconda3 (Part 2)
Просмотров 5911 месяцев назад
Package management using Anaconda3 (Part 2)
Package management using Anaconda3 (Part 1)
Просмотров 9811 месяцев назад
Package management using Anaconda3 (Part 1)
Panel discussion on Interdisciplinary Research and Collaboration - Oct 29, 2021
Просмотров 4711 месяцев назад
Panel discussion on Interdisciplinary Research and Collaboration - Oct 29, 2021
Ecology in the age of big data
Просмотров 7511 месяцев назад
Ecology in the age of big data

Комментарии

  • @alemg.mariam6361
    @alemg.mariam6361 3 дня назад

    Thanks for your very educative talks. I found very helpful.

  • @pratikshya2010
    @pratikshya2010 5 дней назад

    General comment Prof. , @9.07, the real part id the natural frequency and wi is the growth rate of the eigenvalue problem. Thats the general convention.

  • @AndreaNing-gh3sg
    @AndreaNing-gh3sg Месяц назад

    Excellent teaching, thank you very much

  • @KaushalSoni2205
    @KaushalSoni2205 2 месяца назад

    Provide simulation with macine learning matlab etc

  • @fotter9567
    @fotter9567 2 месяца назад

    The first half was really great as an introduction to the topic. The second half is absolutely useless. Filling your slides with formulas and switching back and forth between slides is no way to teach a topic.

  • @samsonoketch733
    @samsonoketch733 3 месяца назад

    Definitely, the best R tutorial I have ever come across on RUclips! Good stuff!

  • @aaronmackay4021
    @aaronmackay4021 3 месяца назад

    Thank you for such a detailed introduction to SEM. I have a question - at 46:18 the model is called a "saturated model" because the df = 0. However I have been reading that a "saturated model" occurs when there are the same number of parameters as there are data points. In this case, the model has 5 parameters and 500 data points. Is it still a saturated model then?

  • @aduus252
    @aduus252 3 месяца назад

    very insightful, I would wish to know how to use these commands after doing missing imputation with MICE

  • @hilariomolinaii355
    @hilariomolinaii355 3 месяца назад

    I have learned so much, gracias!

  • @charlotteveizs8237
    @charlotteveizs8237 3 месяца назад

    how do we get the value of the latent ? not the variance but the value

  • @edgarhuk
    @edgarhuk 3 месяца назад

    Thanks a lot! Greetings from University of Adelaide.

  • @ninadkorgaonkar5134
    @ninadkorgaonkar5134 4 месяца назад

    Fabulous Lecture

  • @brendatriumph4132
    @brendatriumph4132 4 месяца назад

    YOUR THE BEST, YOU JUST SIMPLIFIED EVERYTHING THANKYOU SO MUCH PROFESSOR

  • @will74lsn
    @will74lsn 4 месяца назад

    great video! Thanks. What do you think of using the estimation method DWLS instead of ML for ordinal items (such as those in the video "strongly disagree to strongly agree")? I have just read a paper (Reimann et al. 2024) where they used DWLS in a 2-factor CFA and got a great RMSEA (0.01). Their rationale was that the responses are ordinal and not continuous. Interestingly, I could run the same data set with ML and got an RMSEA = 0.13. Obviously a big difference. In papers, authors often do not even mention their estimation method.

  • @KN-tx7sd
    @KN-tx7sd 4 месяца назад

    Wow, this is outstanding! Will it be possible to do similar in R program

  • @corecode4491
    @corecode4491 4 месяца назад

    Wow..what a tutorial Thank you so much❤❤

  • @lindalarsen9102
    @lindalarsen9102 5 месяцев назад

    For a complete novice to Mplus this was a great introductory tutorial. Thank you.

  • @y.n.z.8159
    @y.n.z.8159 5 месяцев назад

    I am in an intermediate statistics and research course for my doctoral program. I began reading Hayes and found myself dissociating with glazed stares. This workshop has provided an informative path to at least begin to consume the material with some understanding. Your assistance with downloading the PROCESS macro was also very helpful. I hope to find moderation and conditional process analysis workshops from this source as well. Thank you very much!!

  • @Zane_Zaminsky
    @Zane_Zaminsky 5 месяцев назад

    Matlab? Mathematica? Maple? Python? R? Thanks.

  • @juliuskimani6726
    @juliuskimani6726 5 месяцев назад

    Once I save the folium html, after two days, the interactive visualization stops to display. What could be the problem?

  • @TheJammed
    @TheJammed 5 месяцев назад

    Thank you so much. Very helpful!

  • @andrewnguyen3312
    @andrewnguyen3312 6 месяцев назад

    Great video thank you!

  • @CanDoSo_org
    @CanDoSo_org 6 месяцев назад

    Thanks for the great tutorial. At 1:51:35, is the wt.loss also by the time of beginning the study (treatment), like the age variable? Thanks.

  • @barjesh
    @barjesh 7 месяцев назад

    My rmse is more than 0.8

  • @barjesh
    @barjesh 7 месяцев назад

    My cfi is 1 and rmse NA

  • @mustafanasiri6247
    @mustafanasiri6247 7 месяцев назад

    Thank you very much for an excellent lecture on CFA. Just a small comment/correction on the very final exercise: the Test statistic for the User Model, is 554.191. In your solution, it is 562.790. and the Degree of Freedom is 20, not 21. By putting these numbers in the formula, we get the correct CFI, which is 0.871 (rounded).

  • @user-nb9fx2ew3x
    @user-nb9fx2ew3x 7 месяцев назад

    The 'li' syntax didn't work for me. It returned errors

  • @sixzero7445
    @sixzero7445 8 месяцев назад

    Still can't believe this is free to watch for everyone. Thank you so much.

  • @Lancedin321
    @Lancedin321 8 месяцев назад

    So much rambling in this presentation. The content gets lost in it.

  • @datawithstata
    @datawithstata 8 месяцев назад

    Great video! Great delivery and insights!

  • @RRL0402
    @RRL0402 8 месяцев назад

    This is the resource I needed for my Dissertation. As someone with no strong stat and R background, this really helped me. Thank you very much Dr. Lin!

  • @RayRay-yt5pe
    @RayRay-yt5pe 8 месяцев назад

    I swear to god, this is the least technical intro I've ever seen in a stat course. It speaks volumes of the teachin style. Amazing job.

  • @aliabasnezhad7872
    @aliabasnezhad7872 9 месяцев назад

    this is so bad!

  • @AlexB-tn1ec
    @AlexB-tn1ec 9 месяцев назад

    this is the worst tutorial ever, this person cannot even speak English properly. why UCLA does not ask someone to teach this material who can actually speak English? waste of resources and time!

  • @xuyang2776
    @xuyang2776 9 месяцев назад

    Hello, Author. Could you tell me how to get the residual vairances of a MSE by lavaan()? Thanks

  • @haraldurkarlsson1147
    @haraldurkarlsson1147 9 месяцев назад

    The HR for wt.loss in the lung data has a p value in excess of 0.05. Thus it is not statistically significant.

  • @haraldurkarlsson1147
    @haraldurkarlsson1147 9 месяцев назад

    I am not really seeing the difference between informative and formative censoring. I am also struggling with the comparison with NAs. NAs missing at random is easy to spot but not so sure about the censoring.

  • @haraldurkarlsson1147
    @haraldurkarlsson1147 9 месяцев назад

    This is a very informative presentation and clearly laid out. However, in terms of earthquakes I don't think it is safe to say that the hazard is constant. Hazard along the San Andreas fault should clearly vary depending on the region next to the fault (rock types vary, last time there was earthquake and so on).

  • @rohitdhankar360
    @rohitdhankar360 10 месяцев назад

    Excellent , thanks for sharing -- Best Regards

  • @muhammadumarakbar8946
    @muhammadumarakbar8946 11 месяцев назад

    Great workshop, Can I found any advance level course of the instructor?

  • @welcometomathy6944
    @welcometomathy6944 11 месяцев назад

    very good analysis. well done

  • @hannesbecher5628
    @hannesbecher5628 Год назад

    Animated plots from 1:01:40

  • @hannesbecher5628
    @hannesbecher5628 Год назад

    Recipes start at 47:52

  • @fatematuzzahrasaqui2732
    @fatematuzzahrasaqui2732 Год назад

    Dr. Lin, is there any video on your seminar on EFA?

  • @user-ub9wr6vo3m
    @user-ub9wr6vo3m Год назад

    These videos are fantastic. Thank you!

  • @DrSamsHealth
    @DrSamsHealth Год назад

    Was the .DAT file mystery ever resolved?

  • @simwaneh1685
    @simwaneh1685 Год назад

    Thanks, is there a way to get the ppts including your r commands??

  • @johanvanzyl5609
    @johanvanzyl5609 Год назад

    Excellent video! I had absolutely no knowledge of STATA before, but now I have to use it for my research, and this video really helped me get going. Thanks!

  • @dsin7322
    @dsin7322 Год назад

    Thank you for a very informatic video. Is it possible to get the PPT.?

    • @eugeniajiang768
      @eugeniajiang768 10 месяцев назад

      stats.oarc.ucla.edu/wp-content/uploads/2022/05/survival_r.html

  • @hassbarry1284
    @hassbarry1284 Год назад

    Hello sir, thank you for the quality of your course. But only I do not master English, so I want to download the video with French subtitles. At the moment, I can't. I need your help please, thank you!