Will AI Replace Radiologists?

Originally posted on Über-Coder:
Ever since Geoffrey Hinton, who is considered the father of deep learning, said in a conference of radiologists that the field will soon be taken over by AI(Artificial Intelligence), a huge debate has erupted among radiologists and AI experts, whether this is a possibility in the foreseeable future or not. If…

Über-Coder

artificial-intelligence-698122_960_720

Ever since Geoffrey Hinton, who is considered the father of deep learning, said in a conference of radiologists that the field will soon be taken over by AI(Artificial Intelligence), a huge debate has erupted among radiologists and AI experts, whether this is a possibility in the foreseeable future or not.
If we look closely, the answer is clearly; No. Radiologists will not be replaced by AI systems. However, the nature of the job of radiologists will change.
The reason why there is confusion in the first place is that radiology(majorly) is a branch of medicine. And medicine is largely misunderstood beyond the practitioners of this field. Furthermore, there are very few people in the world who have a good knowledge of both AI and medicine and also statistical inference associated with it.
In classical texts, medical diagnosis is always described as a protocol where a set of procedures are followed…

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Sample Size Estimation for Machine Learning Models Using Hoeffding’s Inequality

Originally posted on Über-Coder:
Wassily Hoeffding (1914 -1991) was one of the founding fathers of non- parametric statistics (picture credit: http://stat-or.unc.edu) Deep learning is the talk of town these days and with advent of frameworks like Tensorflow, Keras and SciKitlearn etc. anyone can implement it with ease. This is why the first hunch of everyone…

Über-Coder

hoeffding
Wassily Hoeffding (1914 -1991) was one of the founding fathers of non- parametric statistics (picture credit: http://stat-or.unc.edu)

Deep learning is the talk of town these days and with advent of frameworks like Tensorflow, Keras and SciKitlearn etc. anyone can implement it with ease. This is why the first hunch of everyone when dealing with data is to someway apply deep learning to it or at-least some form of machine learning. However, what most of us don’t realize is that; to have a theoretical guarantee over learning and and then testing in such a way that error is minimized when the model is deployed in the real-world, we need considerably large data sets. And such large data sets are very hard to get.

This theoretical guarantee is of utmost importance when dealing with medical or health related data because to generate confidence intervals (values between which your point predictors in-sample can…

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How to configure local computer for FastAI course

Originally posted on Code Yarns 👨‍💻:
I wanted to check out the Practical Deep Learning for Coders course by FastAI. However, I noticed that the course provided configuration instructions mainly for cloud GPU instance providers like Paperspace. I have a notebook and a desktop computer with powerful NVIDIA GPUs and wanted to try the course on…

Code Yarns ?????????

I wanted to check out the Practical Deep Learning for Coders course by FastAI. However, I noticed that the course provided configuration instructions mainly for cloud GPU instance providers like Paperspace. I have a notebook and a desktop computer with powerful NVIDIA GPUs and wanted to try the course on my local machines. The course material is also provided in the form of Jupyter notebooks, while I intended to turn those into Python programs to run locally.

Here are the steps I followed to get my local computer setup for the FastAI course:

  • The local computer was running Ubuntu 16.04 and NVIDIA drivers were already installed on it and working.
  • CUDA 9.0 was installed using the online instructions from NVIDIA.
  • The latest release of CuDNN was installed as described here.
  • Conda was installed and configured as described here. You should be able to run conda info from…

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Copenhagen Accord

The concept “Anthropocene” was originally proposed as a geological epoch in which humans have become a dominant driver of Earth System change (Crutzen, 2002). In recent years, the use of the term has broadened to signify (1) the novelty of the time period in which humans find themselves as a result of this; (2) the […]

The concept “Anthropocene” was originally proposed as a geological epoch in which humans have become a dominant driver of Earth System change (Crutzen, 2002). In recent years, the use of the term has broadened to signify (1) the novelty of the time period in which humans find themselves as a result of this; (2) the novel challenges, opportunities and uncertainties that awareness of global potency brings; and (3) the new perspectives required to deal with them. In the Anthropocene, change has reached the planetary level, not only through accumulation but also through the accelerating emergence of systemic symptoms of high magnitude and notable simultaneity and synchronicity (Steffen et al., 2015a). All aspects of these changes imply risk and security issues for nearer or more distant futures, from the unexpected magnitude of some processes to unperceived connections between them, to the crossing of planetary boundaries (Rockström et al., 2009 and Steffen et al., 2015b).

Human influence on the Earth System has been ongoing for centuries (Turner et al., 1990), yet only recently has it had significant implications for the structure and functioning of the Earth System at the planetary level (Steffen et al., 2015b). In the Anthropocene, humans are doing more than simply changing local land cover, extracting resources, and degrading the air, water, and soil. They have also become key drivers and amplifiers of planetary change, influencing large-scale processes and systems, including the climate, the oceans and terrestrial ecosystems, and ultimately the functioning of the Earth System as a whole. These intertwined and more complex socio-ecological systems are likely to exhibit more unexpected, emergent behaviors, with new risks and uncertainties.

Copenhagen Accord

1. We underline that climate change is one of the greatest challenges of our time. We
emphasise our strong political will to urgently combat climate change in accordance with the principle ofcommon but differentiated responsibilities and respective capabilities. To achieve the ultimate objective of the Convention to stabilize greenhouse gas concentration in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system, we shall, recognizing the scientific view that the increase in global temperature should be below 2 degrees Celsius, on the basis of equity and in the context of sustainable development, enhance our long-term cooperative action to combat climate change. We recognize the critical impacts of climate change and the potential impacts of response measures on countries particularly vulnerable to its adverse effects and stress the need to
establish a comprehensive adaptation programme including international support.

Why did Copenhagen fail to deliver a climate deal?


Monoamine neurotransmitters

Monoamine neurotransmitters are neurotransmitters and neuromodulators that contain one amino group that is connected to an aromatic ring by a two-carbon chain (-CH2-CH2-). All monoamines are derived from aromatic amino acids like phenylalanine, tyrosine, tryptophan, and thethyroid hormones by the action of aromatic amino acid decarboxylase enzymes. Monoaminergic systems, i.e., the networks of neurons that […]

Monoamine neurotransmitters are neurotransmitters and neuromodulators that contain one amino group that is connected to an aromatic ring by a two-carbon chain (-CH2-CH2-). All monoamines are derived from aromatic amino acids like phenylalanine, tyrosine, tryptophan, and thethyroid hormones by the action of aromatic amino acid decarboxylase enzymes. Monoaminergic systems, i.e., the networks of neurons that utilize monoamine neurotransmitters, are involved in the regulation of cognitive processes such as emotion, arousal, and certain types of memory. It has been found that monoamine neurotransmitters play an important role in the secretion and production of neurotrophin-3 by astrocytes, a chemical which maintains neuron integrity and provides neurons with trophic support.[1] Drugs used to increase (or reduce) the effect of monoamine are sometimes used to treat patients with psychiatric disorders, including depression, anxiety, and schizophrenia.[2]


Oops! Low oil prices are related to a debt bubble

Originally posted on Our Finite World:
Why is the price of oil so low now? In fact, why are all commodity prices so low? I see the problem as being an affordability issue that has been hidden by a growing debt…

Our Finite World

Why is the price of oil so low now? In fact, why are all commodity prices so low? I see the problem as being an affordability issue that has been hidden by a growing debt bubble. As this debt bubble has expanded, it has kept the sales prices of commodities up with the cost of extraction (Figure 1), even though wages have not been rising as fast as commodity prices since about the year 2000. Now many countries are cutting back on the rate of debt growth because debt/GDP ratios are becoming unreasonably high, and because the productivity of additional debt is falling.

If wages are stagnating, and debt is not growing very rapidly, the price of commodities tends to fall back to what is affordable by consumers. This is the problem we are experiencing now (Figure 1). 

Figure 1. Author's illustration of problem we are now encountering. Figure 1. Author’s illustration of problem we are now encountering.

I will…

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2016: Oil Limits and the End of the Debt Supercycle

Originally posted on Our Finite World:
What is ahead for 2016? Most people don’t realize how tightly the following are linked: Growth in debt Growth in the economy Growth in cheap-to-extract energy supplies Inflation in the cost of producing commodities…

Our Finite World

What is ahead for 2016? Most people don’t realize how tightly the following are linked:

  1. Growth in debt
  2. Growth in the economy
  3. Growth in cheap-to-extract energy supplies
  4. Inflation in the cost of producing commodities
  5. Growth in asset prices, such as the price of shares of stock and of farmland
  6. Growth in wages of non-elite workers
  7. Population growth

It looks to me as though this linkage is about to cause a very substantial disruption to the economy, as oil limits, as well as other energy limits, cause a rapid shift from the benevolent version of the economic supercycle to the portion of the economic supercycle reflecting contraction. Many people have talked about Peak Oil, the Limits to Growth, and the Debt Supercycle without realizing that the underlying problem is really the same–the fact the we are reaching the limits of a finite world.

There are actually a number of different…

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Why are we doing this?

Originally posted on Sonia Furstenau:
It’s hard to believe what’s going on in Shawnigan Lake. Doctors, realtors, teachers, home builders, nurses, scientists, young mothers and fathers, grandparents – people from all walks of life are putting their lives aside to…

Sonia Furstenau

SIA Protest Stebbings Road-2

It’s hard to believe what’s going on in Shawnigan Lake.

Doctors, realtors, teachers, home builders, nurses, scientists, young mothers and fathers, grandparents – people from all walks of life are putting their lives aside to give all their energy and effort to one thing: trying to stop the loads of contaminated soil being dumped on a mountain above our lake where the headwaters of our watershed flow.

And while the people gather over and over again there is a resounding silence from the provincial government.

Premier Christy Clark, Minister of Environment Mary Polak, and the Liberal MLAs are putting holiday greetings out on their social media pages, wishing everyone a safe and happy break, urging people to enjoy time with their families.

But there is not even a whisper from this government about what is happening in Shawnigan Lake, where hundreds get up in the freezing dark to stand on…

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Tree Poaching In Old Growth Forest Along the Smith River

Originally posted on Siskiyou Land Conservancy:
There’s tree poaching going on in the Smith River National Recreation Area (SRNRA), near Big Flat on the South Fork Smith River. Not just any trees, but some of the biggest, oldest madrones in…

Siskiyou Land Conservancy

MadronePoach15N38Dec2015#2

There’s tree poaching going on in the Smith River National Recreation Area (SRNRA), near Big Flat on the South Fork Smith River. Not just any trees, but some of the biggest, oldest madrones in the region. It’s a tragic, bitter loss of some of the finest trees around, in protected old growth area. If you have information about who might be doing this please contact us or go directly to the law enforcement officer for the SRNRA: Jeremy Mack, 707-457-3874. (Please call only if you have information. Incredibly, Mack is the only enforcement officer for the entire 305,000-acre Smith River National Recreation Area.)

According to officials at the SRNRA, tree poaching is “a forest-wide problem.” In this case, it appears that the perpetrators, who cut down the giant madrones but left them, were planning to return to the site with a crane and a flatbed truck to haul out whole trees, probably for…

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