- The document discusses estimating mutual information and using it to learn forests and Bayesian networks from data. It presents methods for estimating mutual information, finding independence between variables, and using Kruskal's and Chow-Liu algorithms to learn tree structures that approximate joint distributions. Experiments apply these methods to Asia and Alarm datasets to learn Bayesian networks.
ePOM - Intro to Ocean Data Science - Scientific ComputingGiuseppe Masetti
E-learning Python for Ocean Mapping (ePOM) project.
Complementary slides to the Scientific Computing module (part of the Introduction to Ocean Data Science training).
More details at https://www.hydroffice.org/epom
Have you wondered what goes on behind the scenes at an external recruiting agency?
Vested believes the traditional 3rd party recruiting model is antiquated and ripe for disruption. See what we learned by testing the old model and how we plan to change it.
SAP webinar: Explaining Keras Image Classification Models with LIMEShirin Elsinghorst
Keras is a high-level open-source deep learning framework that by default works on top of TensorFlow. Keras is minimalistic, efficient and highly flexible because it works with a modular layer system to define, compile and fit neural networks. It has been written in Python but can also be used from within R. Because the underlying backend can be changed from TensorFlow to Theano and CNTK (with more options being developed right now) it is designed to be framework-independent. Models can be trained on CPU or GPU, locally or in the cloud.
I will show an example how to build an image classifier with Keras. We'll be using a convolutional neural net to classify fruits in images. But that's not all! We not only want to judge our black-box model based on accuracy and loss measures - we want to get a better understanding of how the model works. We will use an algorithm called LIME (local interpretable model-agnostic explanations) to find out what part of the different test images contributed most strongly to the classification that was made by our model. I will introduce LIME and explain how it works. And finally, I will show how to apply LIME to the image classifier we built before, as well as to a pretrained Imagenet model.
You will get:
* an introduction to Keras
* an overview about deep learning and neural nets
* a demo how to build an image classifier with Keras
* an introduction to explaining black box models, specifically to the LIME algorithm
* a demo how to apply LIME to explain the predictions of our own Keras image classifier, as well as of a pretrained Imagenet
Further Information:
* www.shirin-glander.de<http://www.shirin-glander.de>
* https://blog.codecentric.de/author/shirin-glander/
* www.youtube.com/codecentricAI
A startup pitch at AWE USA 2018 - the World's #1 XR Conference & Expo in Santa Clara, California May 30- June 1, 2018.
AWE USA 2018 Startup Pitch: Alper Guler with Kabaq
Funds from around the world are represented at the event, looking to discover frontier technology and identify new investment opportunities.
http://AugmentedWorldExpo.com
Ruhr.PY - Introducing Deep Learning with Keras and PythonShirin Elsinghorst
Ruhr.PY - Python Developer Meetup:
Keras is a high-level API written in Python for building and prototyping neural networks. It can be used on top of TensorFlow, Theano or CNTK. In this talk we build, train and visualize a Model using Python and Keras - all interactive with Jupyter Notebooks!
https://www.meetup.com/Ruhr-py/events/248093628/
-- slide deck generated with beautiful.ai --
-- video recording can be seen here: https://youtu.be/Q8hVXnpEPmc --
-- comment here: https://shirinsplayground.netlify.com/2018/04/ruhrpy_meetup_2018_slides/ --
ePOM - Intro to Ocean Data Science - Data VisualizationGiuseppe Masetti
E-learning Python for Ocean Mapping (ePOM) project.
Complementary slides to the Data Visualization module (part of the Introduction to Ocean Data Science training).
More details at https://www.hydroffice.org/epom
代表的なオープンソース空間データサーバの1つであるGeoServerは、多くの強力な機能を提供します。 特に、さまざまなデータソースからの空間データへの接続とパブリッシングをサポートします。 GeoServerはOpen Geospatial Consortiumによって地理空間フィーチャデータを要求するために設定された標準プロトコルであるWeb Feature Service(WFS)もサポートしています。 しかしながら、GeoServerは2次元ジオメトリのための関数しか提供しないため、3D空間データを処理する関数はほとんどありません。 GeoServerの重要なコンポーネントであるJTS Topology Suiteは3D空間操作をサポートしていないため、ソリッドジオメトリもサポートしていません。 この講演では、3D空間データを扱うために私たちが実装したGeoServerの拡張モジュールを紹介します。
GeoServer, one of the representative open source spatial data servers, provides many powerful features. In particular, it supports connecting to and publishing spatial data from a variety of data sources. GeoServer also supports Web Feature Service (WFS), which is a standard protocol established by the Open Geospatial Consortium to request geospatial feature data. However, GeoServer provides functions only for two-dimensional geometry, so it provides few functions for handling 3D spatial data. Because JTS Topology Suite, which is an important component of GeoServer, does not support 3D spatial operations, it also does not support solid geometries. In this talk, I will introduce extension modules of GeoServer that we have implemented to handle 3D spatial data.
ePOM - Intro to Ocean Data Science - Scientific ComputingGiuseppe Masetti
E-learning Python for Ocean Mapping (ePOM) project.
Complementary slides to the Scientific Computing module (part of the Introduction to Ocean Data Science training).
More details at https://www.hydroffice.org/epom
Have you wondered what goes on behind the scenes at an external recruiting agency?
Vested believes the traditional 3rd party recruiting model is antiquated and ripe for disruption. See what we learned by testing the old model and how we plan to change it.
SAP webinar: Explaining Keras Image Classification Models with LIMEShirin Elsinghorst
Keras is a high-level open-source deep learning framework that by default works on top of TensorFlow. Keras is minimalistic, efficient and highly flexible because it works with a modular layer system to define, compile and fit neural networks. It has been written in Python but can also be used from within R. Because the underlying backend can be changed from TensorFlow to Theano and CNTK (with more options being developed right now) it is designed to be framework-independent. Models can be trained on CPU or GPU, locally or in the cloud.
I will show an example how to build an image classifier with Keras. We'll be using a convolutional neural net to classify fruits in images. But that's not all! We not only want to judge our black-box model based on accuracy and loss measures - we want to get a better understanding of how the model works. We will use an algorithm called LIME (local interpretable model-agnostic explanations) to find out what part of the different test images contributed most strongly to the classification that was made by our model. I will introduce LIME and explain how it works. And finally, I will show how to apply LIME to the image classifier we built before, as well as to a pretrained Imagenet model.
You will get:
* an introduction to Keras
* an overview about deep learning and neural nets
* a demo how to build an image classifier with Keras
* an introduction to explaining black box models, specifically to the LIME algorithm
* a demo how to apply LIME to explain the predictions of our own Keras image classifier, as well as of a pretrained Imagenet
Further Information:
* www.shirin-glander.de<http://www.shirin-glander.de>
* https://blog.codecentric.de/author/shirin-glander/
* www.youtube.com/codecentricAI
A startup pitch at AWE USA 2018 - the World's #1 XR Conference & Expo in Santa Clara, California May 30- June 1, 2018.
AWE USA 2018 Startup Pitch: Alper Guler with Kabaq
Funds from around the world are represented at the event, looking to discover frontier technology and identify new investment opportunities.
http://AugmentedWorldExpo.com
Ruhr.PY - Introducing Deep Learning with Keras and PythonShirin Elsinghorst
Ruhr.PY - Python Developer Meetup:
Keras is a high-level API written in Python for building and prototyping neural networks. It can be used on top of TensorFlow, Theano or CNTK. In this talk we build, train and visualize a Model using Python and Keras - all interactive with Jupyter Notebooks!
https://www.meetup.com/Ruhr-py/events/248093628/
-- slide deck generated with beautiful.ai --
-- video recording can be seen here: https://youtu.be/Q8hVXnpEPmc --
-- comment here: https://shirinsplayground.netlify.com/2018/04/ruhrpy_meetup_2018_slides/ --
ePOM - Intro to Ocean Data Science - Data VisualizationGiuseppe Masetti
E-learning Python for Ocean Mapping (ePOM) project.
Complementary slides to the Data Visualization module (part of the Introduction to Ocean Data Science training).
More details at https://www.hydroffice.org/epom
代表的なオープンソース空間データサーバの1つであるGeoServerは、多くの強力な機能を提供します。 特に、さまざまなデータソースからの空間データへの接続とパブリッシングをサポートします。 GeoServerはOpen Geospatial Consortiumによって地理空間フィーチャデータを要求するために設定された標準プロトコルであるWeb Feature Service(WFS)もサポートしています。 しかしながら、GeoServerは2次元ジオメトリのための関数しか提供しないため、3D空間データを処理する関数はほとんどありません。 GeoServerの重要なコンポーネントであるJTS Topology Suiteは3D空間操作をサポートしていないため、ソリッドジオメトリもサポートしていません。 この講演では、3D空間データを扱うために私たちが実装したGeoServerの拡張モジュールを紹介します。
GeoServer, one of the representative open source spatial data servers, provides many powerful features. In particular, it supports connecting to and publishing spatial data from a variety of data sources. GeoServer also supports Web Feature Service (WFS), which is a standard protocol established by the Open Geospatial Consortium to request geospatial feature data. However, GeoServer provides functions only for two-dimensional geometry, so it provides few functions for handling 3D spatial data. Because JTS Topology Suite, which is an important component of GeoServer, does not support 3D spatial operations, it also does not support solid geometries. In this talk, I will introduce extension modules of GeoServer that we have implemented to handle 3D spatial data.
Bayesian network structure estimation based on the Bayesian/MDL criteria when...Joe Suzuki
J. Suzuki. ``Bayesian network structure estimation based on the Bayesian/MDL criteria when both discrete and continuous variables are present". IEEE Data Compression Conference, pp. 307-316, Snowbird, Utah, April 2012.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Bayesian network structure estimation based on the Bayesian/MDL criteria when...Joe Suzuki
J. Suzuki. ``Bayesian network structure estimation based on the Bayesian/MDL criteria when both discrete and continuous variables are present". IEEE Data Compression Conference, pp. 307-316, Snowbird, Utah, April 2012.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...Ana Luísa Pinho
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
2. Road Map
PART-II: July 24, 2017 (based on PART-I)
1. Estimating Mutual Information (15 mins)
2. Learning Forests from Data (25 mins)
3. Learning Bayesian Networks from Data (5 mins)
4. Exercise (45 mins)
PART-I: July 17, 2017
A Bayesian Approach to Data Compression
22. Experiments using Asia data set
• library(BNSL)
• mm=mi_matrix(asia, proc=9) # I_n is used
• edge.list=kruskal(mm)
• g=graph_from_edgelist(edge.list, directed=FALSE)
• plot(g)
• mm=mi_matrix(asia) # J_n is used
• edge.list=kruskal(mm)
• g=graph_from_edgelist(edge.list, directed=FALSE)
• plot(g)
23. Asia (8 variables)
S. Lauritzen, D. Spiegelhalter. Local
Computation with Probabilities on
Graphical Structures and their
Application to Expert Systems (with
discussion). Journal of the Royal
Statistical Society: Series B
(Statistical Methodology), 50(2):157-
224, 1988
25. I. A. Beinlich, H. J. Suermondt, R. M.
Chavez, and G. F. Cooper. The ALARM
Monitoring System: A Case Study
with Two Probabilistic Inference
Techniques for Belief Networks. In
Proceedings of the 2nd European
Conference on Artificial Intelligence
in Medicine, pages 247-256.
Springer-Verlag, 1989.
Alarm (37 varibles)