Windows 10: Announcing ML.NET 1.0 RC - Machine Learning for .NET

Brink · Apr 7, 2019

ML.NET is an open-source and cross-platform machine learning framework (Windows, Linux, macOS) for .NET developers. Using ML.NET, developers can leverage their existing tools and skillsets to develop and infuse custom AI into their applications by creating custom machine learning models for common scenarios like Sentiment Analysis, Recommendation, Image Classification and more!.

Today we’re announcing the ML.NET 1.0 RC (Release Candidate) (version 1.0.0-preview) which is the last preview release before releasing the final ML.NET 1.0 RTM in 2019 Q2 calendar year.

Soon we will be ending the first main milestone of a great journey in the open that started on May 2018 when releasing ML.NET 0.1 as open source. Since then we’ve been releasing monthly, 12 preview releases so far, as shown in the roadmap below:

In this release (ML.NET 1.0 RC) we have initially concluded our main API changes. For the next sprint we are focusing on improving documentation and samples and addressing major critical issues if needed.

The goal is to avoid any new breaking changes moving forward.

Updates in ML.NET 1.0 RC timeframe

Segregation of stable vs. preview version of ML.NET packages: Heading ML.NET 1.0, most of the functionality in ML.NET (around 95%) is going to be released as stable (version 1.0).

You can review the reference list of the ‘stable’ packages and classes here.

However, there are a few feature-areas which still won’t be in RTM state when releasing ML.NET 1.0. Those features still kept as preview are being categorized as preview packages with the version 0.12.0-preview.

The main packages that will continue in preview state after ML.NET 1.0 is released are the following (0.12 version packages):

TensorFlow components

Onnx components

TimeSeries components

Recommendadtions components

You can review the full reference list of “after 1.0” preview packages and classes (0.12.0-preview) here.

IDataView moved to Microsoft.ML namespace: One change in this release is that we have moved IDataView back into Microsoft.ML namespace based on feedback that we received.

TensorFlow-support fixes: TensorFlow is an open source machine learning framework used for deep learning scenarios (such as computer vision and natural language processing). ML.NET has support for using TensorFlow models, but in ML.NET version 0.11 there were a few issues that have been fixed for the 1.0 RC release.
You can review an example of ML.NET code running a TensorFlow model here.

Release Notes for ML.NET 1.0 RC: You can check out additional release notes for 1.0 RC here.

Breaking changes in ML.NET 1.0 Release Candidate

For your convenience, if you are moving your code from ML.NET v0.11 to v0.12, you can check out the breaking changes list that impacted our samples.

Planning to go to production?

If you are using ML.NET in your app and looking to go into production, you can talk to an engineer on the ML.NET team to:

Get help implementing ML.NET successfully in your application.

Provide feedback about ML.NET.

Demo your app and potentially have it featured on the ML.NET homepage, .NET Blog, or other Microsoft channel.

Fill out this form and leave your contact information at the end if you’d like someone from the ML.NET team to contact you.

Get ready for ML.NET 1.0 before it releases!

As mentioned, ML.NET 1.0 is almost here! You can get ready before it releases by researching the following resources:

Get started with ML.NET here.

Next, going further explore some other resources:

Tutorials and resources at the Microsoft Docs ML.NET Guide

Sample apps using ML.NET at the machinelearning-samples GitHub repo

Important ML.NET concepts for understanding the new API are introduced here

“How to” guides that show how to use these APIs for a variety of scenarios can be found here

We will appreciate your feedback by filing issues with any suggestions or enhancements in the ML.NET GitHub repo to help us shape ML.NET and make .NET a great platform of choice for Machine Learning.

Thanks and happy coding with ML.NET!

The ML.NET Team.
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Source: Announcing ML.NET 1.0 RC - Machine Learning for .NET | .NET Blog

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Brink · Apr 7, 2019

Announcing ML.NET 0.8 - Machine Learning for .NET

ML.NET is an open-source and cross-platform framework (Windows, Linux, macOS) which makes machine learning accessible for .NET developers.

ML.NET allows you to create and use machine learning models targeting scenarios to achieve common tasks such as sentiment analysis, issue classification, forecasting, recommendations, fraud detection, image classification and more. You can check out these common tasks at our GitHub repo with ML.NET samples.

Today we’re happy to announce the release of ML.NET 0.8. (ML.NET 0.1 was released at //Build 2018). This release focuses on adding improved support for recommendation scenarios, model explainability in the form of feature importance, debuggability by previewing your in-memory datasets, API improvements such as caching, filtering, and more.

This blog post provides details about the following topics in the ML.NET 0.8 release:

New Recommendation scenarios

Improved debuggability

Model explainability

Additional API improvements

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Read more: Announcing ML.NET 0.8 Machine Learning for .NET | .NET Blog

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Brink · Apr 7, 2019

Announcing ML.NET 0.10 - Machine Learning for .NET

ML.NET is an open-source and cross-platform machine learning framework (Windows, Linux, macOS) for .NET developers. Using ML.NET, developers can leverage their existing tools and skillsets to develop and infuse custom AI into their applications by creating custom machine learning models.

ML.NET allows you to create and use machine learning models targeting common tasks such as classification, regression, clustering, ranking, recommendations and anomaly detection. It also supports the broader open source ecosystem by proving integration with popular deep-learning frameworks like TensorFlow and interoperability through ONNX. Some common use cases of ML.NET are scenarios like Sentiment Analysis, Recommendations, Image Classification, Sales Forecast, etc. Please see our samples for more scenarios.

Today we’re announcing the release of ML.NET 0.10. (ML.NET 0.1 was released at //Build 2018). Note that ML.NET follows a semantic versioning pattern, so this preview version is 0.10. There will be additional versions such as 0.11 and 0.12 before we release v1.0.

This release focuses on the overall stability of the framework, continuing to refine the API, increase test coverage and as an strategic milestone, we have moved the IDataView components into a new and separated assembly under Microsoft.Data.DataView namespace so it will favor interoperability in the future.

The main highlights for this blog post are described below in further details:

IDataView as a shared type across libraries in the .NET ecosystem

Support for multiple ‘feature columns’ in recommendations (FFM based)

Additional updates in v0.10 timeframe

Explore the community samples and share yours!

Planning to go to production?

Get Started!

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Read more: Announcing ML.NET 0.10 - Machine Learning for .NET | .NET Blog

Brink · Apr 7, 2019

Announcing ML.NET 0.7 (Machine Learning .NET)

We’re excited to announce today the release of ML.NET 0.7 – the latest release of the cross-platform and open source machine learning framework for .NET developers (ML.NET 0.1 was released at //Build 2018). This release focuses on enabling better support for recommendation based ML tasks, enabling anomaly detection, enhancing the customizability of the machine learning pipelines, enabling using ML.NET in x86 apps, and more.

This blog post provides details about the following topics in the ML.NET 0.7 release:

Enhanced support for recommendation tasks with Matrix Factorization

Enabled anomaly detection scenarios – detecting unusual events rel

Improved customizability of ML pipelines

x86 support

NimbusML – experimental Python bindings for ML.NET

Get started with ML.NET v07

Enhanced support for recommendation tasks with Matrix Factorization

Recommender systems enable producing a list of recommendations for products in a catalog, songs, movies, and more. We have improved support for creating recommender systems in ML.NET by adding Matrix factorization (MF), a common approach to recommendations when you have data on how users rated items in your catalog. For example, you might know how users rated some movies and want to recommend which other movies they are likely to watch next.

We added MF to ML.NET because it is often significantly faster than Field-Aware Factorization Machines (which we added in ML.NET 0.3) and it can support ratings which are continuous number ratings (e.g. 1-5 stars) instead of boolean values (“liked” or “didn’t like”). Even though we just added MF, you might still want to use FFM if you want to take advantage of other information beyond the rating a user assigns to an item (e.g. movie genre, movie release date, user profile). A more in-depth discussion of the differences can be found here.

Sample usage of MF can be found here. The example is general but you can imagine that the matrix rows correspond to users, matrix columns correspond to movies, and matrix values correspond to ratings. This matrix would be quite sparse as users have only rated a small subset of the catalog.

ML.NET’s MF uses LIBMF.

Enabled anomaly detection scenarios – detecting unusual events

Anomaly detection enables identifying unusual values or events. It is used in scenarios such as fraud detection (identifying suspicious credit card transactions) and server monitoring (identifying unusual activity).

ML.NET 0.7 enables detecting two types of anomalous behavior:

Spike detection: spikes are attributed to sudden yet temporary bursts in values of the input data. These could be outliers due to outages, cyber-attacks, viral web content, etc.

Change point detection: change points mark the beginning of more persistent deviations in the behavior of the data. For example, if product sales are relatively consistent and become more popular (monthly sales double), there is a change point when the trend changes.

These anomalies can be detected on two types of data using different ML.NET components:

IidSpikeDetector and IidChangePointDetector are used on data assumed to be from one stationary distribution (each data point is independent of previous data, such as the number of retweets of each tweet).

SsaSpikeDetector and SsaChangePointDetector are used on data that has a season/trend components (perhaps ordered by time, such as product sales)

Sample code using anomaly detection with ML.NET can be found here.

Improved customizability of ML.NET pipelines

ML.NET offers a variety of data transformations (e.g. processing text, images, categorical features, etc.). However, some use cases require application-specific transformations, such as calculating cosine similarity between two text columns. We have now added support for custom transforms so you can easily include custom business logic.

The CustomMappingEstimator allows you to write your own methods to process data and bring them into the ML.NET pipeline. Here is what it would look like in the pipeline:

var estimator = mlContext.Transforms.CustomMapping<MyInput, MyOutput>(MyLambda.MyAction, "MyLambda")
.Append(...)
.Append(...)

Below is the definition of what this custom mapping will do. In this example, we convert the text label (“spam” or “ham”) to a boolean label (true or false).

public class MyInput
{
public string Label { get; set; }
}
public class MyOutput
{
public bool Label { get; set; }
}
public class MyLambda
{
[Export("MyLambda")]
public ITransformer MyTransformer => ML.Transforms.CustomMappingTransformer<MyInput, MyOutput>(MyAction, "MyLambda");
[Import]
public MLContext ML { get; set; }
public static void MyAction(MyInput input, MyOutput output)
{
output.Label= input.Label == "spam" ? true : false;
}
}

A more complete example of the CustomMappingEstimator can be found here.

x86 support in addition to x64

With this release of ML.NET you can now train and use machine learning models on x86 / 32-bit architecture devices. Previously, ML.NET was limited to x64 devices.

Note that some components that are based on external dependencies (e.g. TensorFlow) will not be available in x86.

NimbusML – experimental Python bindings for ML.NET

NimbusML provides experimental Python bindings for ML.NET. We have seen feedback from the external community and internal teams regarding the use of multiple programming languages. We wanted to enable as many people as possible to benefit from ML.NET and help teams to work together more easily. ML.NET not only enables data scientists to train and use machine learning models in Python (with components that can also be used in scikit-learn pipelines), but it also enables saving models which can be easily used in .NET applications through ML.NET (see here for more details).

In case you missed it: provide your feedback on the new API

ML.NET 0.6 introduced a new set of APIs for ML.NET that provide enhanced flexibility. These APIs in 0.7 and upcoming versions are still evolving and we would love to get your feedback so you can help shape the long-term API for ML.NET.

Want to get involved? Start by providing feedback through issues at the ML.NET GitHub repo!

Additional resources

The most important ML.NET concepts for understanding the new API are introduced here.

A cookbook (How to guides) that shows how to use these APIs for a variety of existing and new scenarios can be found here.

A ML.NET API Reference with all the documented APIs can be found here.

Get started!

If you haven’t already, get started with ML.NET here Next, explore some other great resources:

Tutorials and resources at the Microsoft Docs ML.NET Guide

Code samples at the machinelearning-samples GitHub repo

We look forward to your feedback and welcome you to file issues with any suggestions or enhancements in the ML.NET GitHub repo.

This blog was authored by Gal Oshri and Cesar de la Torre

Thanks,

The ML.NET Team
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Source: Announcing ML.NET 0.7 (Machine Learning .NET) | .NET Blog

Windows 10: Announcing ML.NET 1.0 RC - Machine Learning for .NET

Announcing ML.NET 1.0 RC - Machine Learning for .NET

Announcing ML.NET 1.0 RC - Machine Learning for .NET

Announcing ML.NET 1.0 RC - Machine Learning for .NET

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