These Revision Notes are a review of the Exam Readiness: AWS Certified Machine Learning – Specialty course for the AWS Machine Learning Specialty certification exam. AWS provide this course free of charge. It is billed to test your readiness to take the exam, however together with the exam guide it provides an invaluable measure to…
What is in the AWS Machine Learning Specialist Certificate exam? Perhaps exam syllabus is an old fashioned word, which is why AWS do not use it. Specification, and blue print are more current terms, but AWS don’t call it that either. AWS call the description of their course the Exam Guide. This is where the…
Obtaining large specialised datasets is a must to experiment and train Machine Learning models so they can recognise patterns in real world data and infer a prediction. Datasets can also be used as a source of labeled data to train models to generalise unlabeled real world data. Fortunately there are many data sources for datasets…
Ground Truth Overview Amazon SageMaker Ground Truth is a service you can use to manually label data. This provides high quality labelled data in the preprocessing stage to be used to train Supervised Learning models. Training data is sent to AWS and they take care of the rest returning your data with attached labels processed by…
Overview of Amazon AI Services AI services are AWS’s premiere value-add services. They are easy to use and incorporate to enhance existing systems or as completely new systems. Because they are services AWS does all the heavy lifting leaving the user to interact with the services without having to set up infrastructure or other supporting…
Overview Amazon Forecast uses historical time series data combined with user provided parameter data to generate predictions. The service requires time series data as an input. This can be argumented with local weather data. The desired quantile or mean forcast can be selected and the forcast is output as a CSV file. The output is…
Overview Amazon Personalize draws on features that Amazon incorporates into their own retail website. This includes personalization experiences, including specific product recommendations, personalized product re-ranking, and customized direct marketing. The Amazon Personalize AI service provides personalisation with AWS doing all the heavy lifting of providing the Machine Learning infrastructure to train and deploy the model….
Overview Lex provides natural language chatbot capability. It is based on the same technology as Amazon Alexa. With Lex a user can communicate by voice as part of a conversation to achieve their desired goal or intent. Lex analyses what the user says, this is termed an utterance. From a few text examples Lex can…
Overview Amazon Polly converts text to speech, allowing you to build speech enabled services. Polly can translate text to speech (TTS) to produce realistic voice messages to which a user can take action, or respond as part of a conversation. Video: Text-to-Speech with Amazon Polly Key features of Amazon Poly Amazon Poly use cases Video:…
Overview Amazon Comprehend is used to analyse text to reveal insights and relationships in unstructured data. The data can be any type of free form text such as emails or text messages. For sentiment analysis Amazon Comprehend can tell you the overall sentiment of the text identifying if it was favourable to the subject, or…
Overview Amazon Translate translates text from one language to another. You can translate individual words, phrases, or entire documents. An API is provided, enabling either real-time or batch translation of text from the source language to the target language. Video: What is Amazon Translate? Key features Use cases Translate use cases have three features in…
Overview Amazon Transcribe converts speech to text, by using Automatic Speech Recognition (ASR) technology which is the same underlying technology used by Amazon Alexa. Transcribe can work with multiple languages and speakers and incorporate custom vocabulary provided by the user. Transcribe can be configured to remove sensitive text, such as PII information or swearing. Video:…
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