Fraud through the eyes of a machine

Data structured as a network of relationships can be modeled as a graph, which can then help extract insights into the data through machine learning and rule-based approaches. While these graph representations provide a natural interface to transactional data for humans to appreciate, caution and context must be applied when leveraging machine-based interpretations of these connections.

Originally from KDnuggets https://ift.tt/2UWz0V5

source https://365datascience.weebly.com/the-best-data-science-blog-2020/fraud-through-the-eyes-of-a-machine

How to Become a CTO?

Not sure what is required for a CTO position?

This state of confusion is common in the tech industry due to a lack of detailed and up-to-date information.

So, to address this, we reverse-engineered the job descriptions provided by employers for the CTO position to find out the key patterns and skills you need for the role today.

For this analysis, we have extracted close to 150 job ads from various job boards in the U.S.

We’ve already done similar analyses on other popular career paths (SQL developer, data analyst intern, machine learning engineer, business analyst, marketing analyst).

However, this one is a little unusual, as CTO is more of an Executive role. And, although it is a known fact that a CTO would be more hands-on in the technical operations of an organization, it is challenging to present the ideal technologies for a CTO resume because every company has its own specific Chief Technology Officer requirements.

Nevertheless, there are quite a few non-technical skills that are listed as crucial by almost all companies. And, hopefully, by the end of this article, you will have a clear idea of what you need to get started on your CTO career path.

Of course, you can also check out our video on the topic below.

If you prefer reading and there’s a specific question that interests you, use the table of contents to jump directly to it or just scroll down to check out the entire piece.

We did our best to find the answers to the 10 most important questions every aspiring CTO needs to know.

  1. What Is a CTO?
  2. What Does a CTO Do?
  3. How Much Does a CTO Make?
  4. Which Are the Companies Offering the Highest Number of CTO Jobs?
  5. What Industries are Hiring CTOs Right Now?
  6. Which Are the Locations with a Higher Concentration of CTO Job Offers?
  7. What Is the Required CTO Education?
  8. What Is the Most Desired CTO Specialization?
  9. How Much Experience Do You Need to Become a CTO?
  10. What CTO Skills are Employers Looking for?

But before we get to the actual analysis, let’s quickly define the role itself.

1. What Is a CTO?

What does CTO stand for? If we search through Wikipedia for the CTO meaning, we will see that a CTO is the highest technology executive position within a company that leads the technology or engineering department. To define the role in our own terms, CTO stands for Chief Technology Officer.

2. What Does a CTO Do?

Surely, one thing that’s more important than the Chief Technology Officer definition is to know what the Chief Technology Officer roles and responsibilities are. In a nutshell, a CTO usually handles all the technical related aspects of the organization and guides other employees in developing the right products or technology that serves the organization needs.

3. What Is the CTO Salary?

How much does a CTO make? According to Indeed.com, “the average salary for CTO ranges from approximately $124,775 per year for Director of Information Technology to $210,097 per year for Vice President of Engineering.”

And that lucrative income shouldn’t come as a surprise. For businesses, having a CTO who is up to speed with the latest technological advancements is increasingly valuable.

That said, now that we’ve briefly outlined the CTO profile, it’s time to take a look at our analysis and see how you can become one.

4. What Are the Companies Offering the Highest Number of CTO Jobs?

CTO offers by company: companies offering the highest number of CTO jobs

Our data shows that there are most openings for Chief Technology Officer jobs in Microsoft at the moment, followed by the Federal Reserve Bank.

Overall, there are very few openings company-wise. But this makes perfect sense since multiple openings for a CTO role in a single company is very rare.

CTO offers by company type: large companies and an increasing number of startups are currently looking for a CTO

In terms of company types, almost 33% of the job offers are from large-scale companies with more than 10,000+ employees. What makes an impression, however, is that there are some considerable offers from small-scale organizations as well, which indicates that an increasing number of startups are currently looking for CTO’s.

5. Which Industries Are Hiring CTOs Right Now?

CTO offers by industry: industries with highest demand for CTOs

It is easy to spot that the largest number of Chief Technology Officer vacancies belong to the Financial Services and Information Technology industries.

But these are far from the only options, as there are considerable openings under the Healthcare and Education industries, too.

6. Which Are the Locations with a Higher Concentration of CTO Job Offers?

State-wise, we can easily draw the following conclusions from the data at hand:

  1. The majority of openings for CTO positions are in California and New York.
  2. There is a significant number of openings from Washington and Virginia states. So, it’s safe to say you now know which flight to book if you’re aiming for the CTO title.

CTO offers by state: states with the highest number of CTO job offers

To narrow things down, let’s take a look at the cities with the most CTO offers at the moment. Currently, the best opportunities are undisputedly in New York City. However, don’t rule out San Francisco and Redmond, as data suggests they offer a reasonable number of openings, too.

CTO offers by city: U.S. cities with the highest demand for CTOs

So, these are the best industries, companies, and locations to consider if you have set your sight on the CTO role. Now, let’s take a good look at the education, experience, and skills required by employers.

7. What Is the Required CTO Education?

CTO education: top degrees mentioned in CTO job descriptions

What degree do you need to fulfill the CTO position?

According to the data, almost 50% of job offers mentioned Bachelor as the required degree for the CTO position. However, the Master’s degree is mentioned in almost the same number of offers as the Bachelor’s, so that might be a trend worth following up in the future

On the other hand, very few companies are expecting Ph.D. candidates for the CTO position. That’s probably because business acumen and experience are considered more important for that dynamic role.

8. What Is the Most Desired CTO Specialization?

CTO fields of studies: Most desired specialization in CTO job offers

Well, the majority of the companies have listed Computer Science as the preferred CTO educational background in their Chief Technology Officer job description. Other more prominent fields of concentration include Mathematics, EE, and Statistics.

9. How Much Experience Do You Need to Become a CTO?

CTO years of experience mentioned in job offers

Since the Chief Technology Officer role is more of an Executive one, companies are looking for experienced candidates that can carry out the CTO responsibilities. On average, the overall industry experience expected for a CTO position is 10+ years. Besides, candidates with relevant experience in senior roles of 7+ years are preferred by the companies.

10. What CTO Skills Are Employers Looking for?

CTO skills required in job offers

So, you’re already familiar with the Chief Technology Officer responsibilities and preferred educational background. And that means we’ve arrived at the most exciting part – exploring the practical aspect of the CTO role – skills.

Our research outlined 6 distinct categories: programming languages, front end technologies, other technologies/tools, domain knowledge, soft skills, and communication skills.

Programming Languages

CTO skills: Programming languages required for the CTO role

As we pointed out earlier, it is been a little difficult to find the default technical skills for a CTO role. Instead, we identified the current trends, that is, the most mentioned skills by companies. In that case, these are Net(C#), Java, SQL, and Javascript.

Front-end Technologies

CTO skills: front-end technologies mentioned in CTO job offers

Continuing with front-end technologies, 2 trends jump off the page:

  1. We observed that front end technologies are mentioned in a good number of openings. This adds up, as these days, most of the small-scale companies are interested in building web-based products.
  2. Angular, ReactJS, and NodeJs are mentioned in quite a few openings.

Other Technologies and Tools

CTO skills: Other technologies and tools mentioned in CTO job offers

When it comes to other technologies and tools, companies need candidates that are well-aware of the currently popular technologies like Machine Learning, Saas, and Devops. AWS and Azure are also mentioned in a few offers as cloud technologies are trending in the industry these days.

Domain Knowledge

CTO skills: domain expertise required for the CTO job

Naturally, companies are expecting the candidates to know about certain domains as this helps them build the right products to satisfy customer needs. So, in tune with the latest developments and trends in business and economics, Healthcare and Finance are present in quite a few job offers.

Soft Skills

CTO non-technical skills: soft skills required for the CTO role

That said, the technical aspect of the CTO job is only half of what it takes to move up the ladder and become one.

In fact, soft skills are probably the most important skills for a CTO position.

Most of the companies are looking to recruit candidates with strong leadership qualities in managing the employees.

What’s more, many companies are expecting the candidates for a CTO role to be experts in the design and architecture of the products.

Strategic thinking and an innovative mindset are some of the most prized qualities and are in huge demand for the role, as well.

Communication Skills

Finally, as we approach the end of the list of qualities a CTO needs to possess, we shouldn’t forget that communication skills and soft skills go hand in hand.

As a CTO, you are bound to interact with various teams and other leaders in the organization. So, top communication skills are a must. Our data confirm that with more than 50% of companies requiring communication skills.

Skills and qualities that give you a high chance to get a CTO position

Now, you’ve got a good idea about the Chief Technology Officer profile, what does a Chief Technology Officer do, as well as the skills and education required to become a CTO.

To recap, this is more of a role-oriented job. So, if you have good knowledge in any domain and front-end technologies, prior experience in a senior role, and you’re capable of handling an organization with good leadership qualities, then you stand a fairly high chance to get an interview call for the CTO position.

Nevertheless, if you’re also interested in the numerous amazing career opportunities in data science, check out our course Starting a Career in Data Science: Project Portfolio, Resume, and Interview Process.

The post How to Become a CTO? appeared first on 365 Data Science.

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Top Stories Nov 16-22: How to Get Into Data Science Without a Degree

Also: Top Python Libraries for Deep Learning, Natural Language Processing & Computer Vision; Facebook Open Sourced New Frameworks to Advance Deep Learning Research; 5 Most Useful Machine Learning Tools every lazy full-stack data scientist should use; Top Python Libraries for Deep Learning, Natural Language Processing & Computer Vision; Is Data Science for Me? 14 Self-examination Questions to Consider

Originally from KDnuggets https://ift.tt/3l1PENw

source https://365datascience.weebly.com/the-best-data-science-blog-2020/top-stories-nov-16-22-how-to-get-into-data-science-without-a-degree

15 Exciting AI Project Ideas for Beginners

There are many branches to AI to learn, but a project-based approach can keep things interesting. Here is a list of 15 such projects you can get started on implementing today.

Originally from KDnuggets https://ift.tt/3l0dwkJ

source https://365datascience.weebly.com/the-best-data-science-blog-2020/15-exciting-ai-project-ideas-for-beginners

Know-How to Learn Machine Learning Algorithms Effectively

The takeaway from the story is that machine learning is way beyond a simple fit and predict methods. The author shares their approach to actually learning these algorithms beyond the surface.

Originally from KDnuggets https://ift.tt/373vBt8

source https://365datascience.weebly.com/the-best-data-science-blog-2020/know-how-to-learn-machine-learning-algorithms-effectively

How To Revolutionize Your Digital Workplace With AI

The pandemic crisis has demystified a long-drawn conclusion of work from office holding an edge over remote work. Organizations globally are prioritizing their investments in digital workplace transformation mapping to the work from home or hybrid work environment. Enterprises will need to focus on flexibility and agility in response to adapt to a fast-changing situation.

Before the COVID-19 pandemic, while there was a digital-first slogan everywhere, transformation lacked the front seat counting on the priority investments then. Several legacy applications and processes took a hit during the pandemic lockdown due to a lack of scalability. Additionally, with an increase in employees working from home, communication and engagement became an additional challenge.

Artificial Intelligence Jobs

Slowly organizations looked at AI as a game-changer. Automation and AI are at the forefront of managing these hurdles efficiently in addition to enhancing stakeholder experiences.

AI and ML are helping enterprises globally to adapt to new ways of working and scaling businesses, especially in today’s crisis. In the COVID-19 era, organizations that successfully combine human and machine capabilities have not only survived the tide but were able to tweak the tide to an opportunity.

Trending AI Articles:

1. How to automatically deskew (straighten) a text image using OpenCV

2. Explanation of YOLO V4 a one stage detector

3. 5 Best Artificial Intelligence Online Courses for Beginners in 2020

4. A Non Mathematical guide to the mathematics behind Machine Learning

Infusing AI in transforming legacy applications has given a competitive advantage. According to Forbes columnist Louis Columbus, 63 percent of enterprise leaders say they have adopted AI technology to catch up with rivals. Having a plan to adopt AI isn’t just about working better internally; but also not being left behind.

Artificial Intelligence In The Digital Workplace

AI covers a broad and continually evolving range of technologies in the modern digital workplace. Everyday AI brings substantial importance to the organization, transforming the way organizations communicate, collaborate, search, and share information in the digital workplace.

“Over the next decade, AI will offer employees unprecedented information awareness and insight, freedom from low-value-additional activities, and the ability to use complex technologies,” says Bern Elliot, Distinguished VP Analyst, Gartner.

The future of AI involves evolved cognitive systems, advanced algorithms, and anomaly detections. Let us explore some areas for consideration in an AI-infused digital workplace.

AI-Powered Personalization

Employees spending a lot of productive hours in finding relevant information on time due to information overload is an age-old hassle awaiting automation. Personalized content delivery is the key to the intranet adoption in the organization. Modern intranet equipped with AI recommends content based on a user profile, interactions, teams, etc. With AI tapping into the legacy applications, employees get tailored and relevant information quickly, based on their activities, interests, and locations, which not only saves time and effort but also leaves more productive time for skilled work.

As a Forrester report suggests, More than half (54%) of global information workers are interrupted from their work a few times or more per month to spend time looking for or trying to get access to information, insights, and answers. All the information is generally available within the organization but is not easily accessible or searchable at the right time.

A possible and positive side effect of AI-powered personalization is adoption and enhanced employee engagement. Increased engagement rates are a delight to every HR personnel in this crisis.

Personalization is the key, making employees more receptive to intranet adoption and utilizing the information hosted on it. As expectations from the intranet evolve rapidly to address emerging needs, organizations are transforming from using the traditional intranet to leveraging AI, machine learning, and contextual processing. These changes have introduced elements of personalization in today’s digital workplace equipping employees with the right information at the right time.

Knowledge Mining

Employees spend a maximum of their time either looking through or creating unstructured information. A lot of information is just locked away in thousands of files, which is difficult to find and time-consuming as well. By the time, the information is identified and organized, it loses its value and is fit for only archiving.

Almost 80% of the data generated is unstructured, and much of it can only be interpreted manually by an expert. Knowledge mining techniques using a combination of AI services navigate content understanding over immense amounts of unstructured, semi-structured, and structured data that allows the organization to uncover insights, explore it, and find relevant information quickly. Auto-tagging and indexing make the documents discoverable but also enhances its searchability and accessibility.

Right now, when every knowledge worker is figuring out how best to stay in line with organizational wealth, there is no better time than now to start with AI in knowledge mining.

Cognitive Enterprise Search

Keeping remote employees both engaged and productive, however, will be particularly challenging for companies. Organizations that are still using the old keyword-based enterprise search engines of the past are now obsolete. Cognitive search is the new technological advancement in enterprise search that uses artificial intelligence (AI) technologies like NLP, ML to ingest, analyze, and organize digital content. Leveraging these technologies facilitate search results that are more relevant and contextual, eliminating the frustration and recreating near duplicates of files.

With AI algorithms and office graph kinds of technologies, the search mechanism is now well equipped in establishing the context of the search query or searcher’s intent. Accordingly, fetches search results, which are per user’s expectations.

Besides, AI-driven search solutions are a powerful way for enterprises to seamlessly integrate the knowledge from different platforms and make it readily available to their employees in a single user interface.

The single search feature eliminates the necessity of switching between numerous apps that eliminates time wasted on tasks like re-entering credentials multiple times. Moreover, unified data tools allow enterprises to streamline their business processes.

Virtual Digital Assistants

In the current remote working scenario, where employees are managing personal activities like house chores, kids, and pets alongside their office duties, work timings of employees are beyond the typical 9 to 5 work hours. Therefore, the need for assistance round-the-clock to provide instant resolutions to employee support requests is much stronger.

With AI making inroads, regular support requests wait for an hour is quickly resolved by AI chatbots. The inherently complicated request, requiring human intelligence will quickly escalate to human agents owing to one of the great features of virtual assistants — the human handoff feature.

AI-powered chatbots equip employees with more personalized and relevant information through a conversational interface from anywhere at any time. And also update employees with the latest updates and news. These processes will improve employee productivity and streamline business operations in the new normal.

One of the key use cases of virtual agents in the new normal is for the HR department. They are using it to collect health information, create a regular employee touchpoint, distribute health and safety bulletins, and much more.

Conclusion

Looking at the realms of possibilities, it would not be an exaggeration to say that an AI-infused digital workplace can act as a catalyst to bring a fundamental shift in the traditional workplace environment. An AI-Powered autonomous digital intranet acts as the foundation of the digital workplace. It is a one-stop-shop to collaborate, communicate, and share information enabling organizations to boost intranet adoption, employee engagement, and productivity.

A digital workplace without an intranet as its foundation will end up being a collection of disconnected digital waypoints. But with an intranet anchoring the digital workplace, the organization will be laying the foundation for success.

Mesh 3.0 launched as the World’s 1st AI powered autonomous SharePoint Intranet helps organizations in unlocking untapped knowledge, streamlining processes, and creates a seamless yet effective global network — providing a central hub for breaking down silos. Mesh modern intranet features enhance employee engagement, boosting internal communication and collaboration that catalyze a digital workplace environment.

Don’t forget to give us your ? !


How To Revolutionize Your Digital Workplace With AI was originally published in Becoming Human: Artificial Intelligence Magazine on Medium, where people are continuing the conversation by highlighting and responding to this story.

Via https://becominghuman.ai/how-to-revolutionize-your-digital-workplace-with-ai-b0acb0008864?source=rss—-5e5bef33608a—4

source https://365datascience.weebly.com/the-best-data-science-blog-2020/how-to-revolutionize-your-digital-workplace-with-ai

Convolutional Neural Networks (CNNs / ConvNets) for Visual Recognition

Photo by JJ Ying on Unsplash

Convolutional Neural Networks are very similar to ordinary Neural Networks. They are made up of neurons that have learnable weights and biases. Each neuron receives some inputs, performs a dot product, and optionally follows it with a non-linearity. The whole network still expresses a single differentiable score function: from the raw image pixels on one end to class scores at the other. And they still have a loss function (e.g. SVM/Softmax) on the last (fully-connected) layer and all the tips/tricks we developed for learning regular Neural Networks still apply.

Artificial Intelligence Jobs

Trending AI Articles:

1. How to automatically deskew (straighten) a text image using OpenCV

2. Explanation of YOLO V4 a one stage detector

3. 5 Best Artificial Intelligence Online Courses for Beginners in 2020

4. A Non Mathematical guide to the mathematics behind Machine Learning

So What’s New in ConvNet

ConvNet architectures make the explicit assumption that the inputs are images, which allows us to encode certain properties into the architecture. These then make the forward function more efficient to implement and vastly reduce the number of parameters in the network.

Regular Neural Nets

Neural Networks receive an input (a single vector), and transform it through a series of hidden layers. Each hidden layer is made up of a set of neurons, where each neuron is fully connected to all neurons in the previous layer, and where neurons in a single layer function completely independently and do not share any connections. The last fully-connected layer is called the “output layer” and in classification settings, it represents the class scores.

The CIFAR10 dataset consists of 60000 32×32 colour images in 10 classes, with 6000 images per class. There are 50000 training images and 10000 test images.

Regular Neural Nets don’t scale well to full images. In CIFAR-10, images are only of size 32x32x3 (32 wide, 32 high, 3 color channels), so a single fully-connected neuron in a first hidden layer of a regular Neural Network would have 32*32*3 = 3072 weights. This amount still seems manageable, but clearly, this fully-connected structure does not scale to larger images. For example, an image of a more respectable size, e.g. 200x200x3, would lead to neurons that have 200*200*3 = 120,000 weights. Moreover, we would almost certainly want to have several such neurons, so the parameters would add up quickly! Clearly, this full connectivity is wasteful and the huge number of parameters would quickly lead to overfitting.

3D volumes of neurons. Convolutional Neural Networks take advantage of the fact that the input consists of images and they constrain the architecture in a more sensible way. In particular, unlike a regular Neural Network, the layers of a ConvNet have neurons arranged in 3 dimensions: width, height, depth. (Note that the word depth here refers to the third dimension of an activation volume, not to the depth of a full Neural Network, which can refer to the total number of layers in a network.) For example, the input images in CIFAR-10 are an input volume of activations, and the volume has dimensions 32x32x3 (width, height, depth respectively). As we will soon see, the neurons in a layer will only be connected to a small region of the layer before it, instead of all of the neurons in a fully-connected manner. Moreover, the final output layer would for CIFAR-10 have dimensions 1x1x10, because by the end of the ConvNet architecture we will reduce the full image into a single vector of class scores, arranged along the depth dimension. Here is a visualization:

Left
Right

Left: A regular 3-layer Neural Network. Right: A ConvNet arranges its neurons in three dimensions (width, height, depth), as visualized in one of the layers. Every layer of a ConvNet transforms the 3D input volume to a 3D output volume of neuron activations. In this example, the red input layer holds the image, so its width and height would be the dimensions of the image, and the depth would be 3 (Red, Green, Blue channels).

A ConvNet is made up of Layers. Every Layer has a simple API: It transforms an input 3D volume to an output 3D volume with some differentiable function that may or may not have parameters.

Layers used to build ConvNets

As we described above, a simple ConvNet is a sequence of layers, and every layer of a ConvNet transforms one volume of activations to another through a differentiable function. We use three main types of layers to build ConvNet architectures: Convolutional Layer, Pooling Layer, and Fully-Connected Layer (exactly as seen in regular Neural Networks). We will stack these layers to form a full ConvNet architecture.

Example Architecture: Overview. We will go into more details below, but a simple ConvNet for CIFAR-10 classification could have the architecture [INPUT — CONV — RELU — POOL — FC]. In more detail:

  • INPUT [32x32x3] will hold the raw pixel values of the image, in this case, an image of width 32, height 32, and with three color channels R, G, B.
  • CONV layer will compute the output of neurons that are connected to local regions in the input, each computing a dot product between their weights and a small region they are connected to in the input volume. This may result in volume such as [32x32x12] if we decided to use 12 filters.
  • RELU layer will apply an elementwise activation function, such as the max(0,x)max(0,x) thresholding at zero. This leaves the size of the volume unchanged ([32x32x12]).
  • POOL layer will perform a downsampling operation along the spatial dimensions (width, height), resulting in volume such as [16x16x12].
  • FC (i.e. fully-connected) layer will compute the class scores, resulting in a volume of size [1x1x10], where each of the 10 numbers corresponds to a class score, such as among the 10 categories of CIFAR-10. As with ordinary Neural Networks and as the name implies, each neuron in this layer will be connected to all the numbers in the previous volume.

In this way, ConvNets transform the original image layer by layer from the original pixel values to the final class scores. Note that some layers contain parameters and others don’t. In particular, the CONV/FC layers perform transformations that are a function of not only the activations in the input volume but also of the parameters (the weights and biases of the neurons). On the other hand, the RELU/POOL layers will implement a fixed function. The parameters in the CONV/FC layers will be trained with gradient descent so that the class scores that the ConvNet computes are consistent with the labels in the training set for each image.

Summary:

  • A ConvNet architecture is in the simplest case a list of Layers that transform the image volume into an output volume (e.g. holding the class scores)
  • There are a few distinct types of Layers (e.g. CONV/FC/RELU/POOL are by far the most popular)
  • Each Layer accepts an input 3D volume and transforms it into an output 3D volume through a differentiable function
  • Each Layer may or may not have parameters (e.g. CONV/FC do, RELU/POOL don’t)
  • Each Layer may or may not have additional hyperparameters (e.g. CONV/FC/POOL do, RELU doesn’t)

The activations of an example ConvNet architecture. The initial volume stores the raw image pixels (left) and the last volume stores the class scores (right). Each volume of activations along the processing path is shown as a column. Since it’s difficult to visualize 3D volumes, we lay out each volume’s slices in rows. The last layer volume holds the scores for each class, but here we only visualize the sorted top 5 scores and print the labels of each one.

In the next article, we will discuss the individual layers and the details of their hyperparameters and their connectivities.

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Don’t forget to give us your ? !


Convolutional Neural Networks (CNNs / ConvNets) for Visual Recognition was originally published in Becoming Human: Artificial Intelligence Magazine on Medium, where people are continuing the conversation by highlighting and responding to this story.

Via https://becominghuman.ai/convolutional-neural-networks-cnns-convnets-for-visual-recognition-cae879a70f1a?source=rss—-5e5bef33608a—4

source https://365datascience.weebly.com/the-best-data-science-blog-2020/convolutional-neural-networks-cnns-convnets-for-visual-recognition

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