AWS Certified Machine Learning – Specialty (MLS-C01) – 2023

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The AWS Certified Machine Learning – Specialty (MLS-C01) exam is intended for individuals who perform an artificial intelligence/machine learning (AI/ML) development or data science role. This exam validates a candidate’s ability to design, build, deploy, optimize, train, tune, and maintain ML solutions for given business problems by using the AWS Cloud. Implement ML Ops Starategy on cloud with AWSAccording to AWS, below are the tasks where candidate’s ability is validated:· Select and justify the appropriate ML approach for a given business problem· Identify appropriate AWS services to implement ML solutions· Design and implement scalable, cost-optimized, reliable, and secure ML solutions. Also, Candidates are expected to have below skillset:· The ability to express the intuition behind basic ML algorithms· Experience performing basic hyperparameter optimisation· Experience with ML and deep learning frameworks· The ability to follow model-training best practices· The ability to follow deployment best practices· The ability to follow operational best practices And the Certification examination is designed and split to validate the candidate’s expertise in 4 Domains:1. Domain 1: Data Engineering  20% Weightage2. Domain 2: Exploratory Data Analysis  24% Weightage3. Domain 3: Modeling  36% Weightage4. Domain 4: Machine Learning Implementation and Operations  20%In our certification learning journey of this course, we will follow the same pattern, and cover the topics in a Sequential and logical way so that, as a practitioner, you can excel on the certification examination. Domain 1: Data Engineering· Create data repositories for machine learning. ·o Identify data sources (e. g., content and location, primary sources such as user data)o Determine storage mediums (e. g., DB, Data Lake, S3, EFS, EBS)· Identify and implement a data ingestion solution. o Data job styles/types (batch load, streaming)o Data ingestion pipelines (Batch-based ML workloads and streaming-based ML workloads)§ Kinesis§ Kinesis Analytics§ Kinesis Firehose§ EMR§ Glueo Job Scheduling· Identify and implement a data transformation solution. o Transforming data transit (ETL: Glue, EMR, AWS Batch)o Handle ML-specific data using map-reduce (Hadoop, Spark, Hive)Domain 2: Exploratory Data Analysis· Sanitize and prepare data for modeling. o Identify and handle missing data, corrupt data, stop words, etc. o Formatting, normalizing, augmenting, and scaling datao Labeled data (recognizing when you have enough labeled data and identifying mitigation strategies [Data labeling tools (Mechanical Turk, manual labor)])· Perform feature engineering. o Identify and extract features from data sets, including from data sources such as text, speech, image, public datasets, etc. o Analyze/evaluate feature engineering concepts (binning, tokenization, outliers, synthetic features, 1 hot encoding, reducing dimensionality of data) 2.3· Analyze and visualize data for machine learning. o Graphing (scatter plot, time series, histogram, box plot)o Interpreting descriptive statistics (correlation, summary statistics, p value)o Clustering (hierarchical, diagnosing, elbow plot, cluster size)Domain 3: Modeling· Frame business problems as machine learning problems. o Determine when to use/when not to use MLo Know the difference between supervised and unsupervised learningo Selecting from among classification, regression, forecasting, clustering, recommendation, etc.· Select the appropriate model(s) for a given machine learning problem. o Xgboost, logistic regression, K-means, linear regression, decision trees, random forests, RNN, CNN, Ensemble, Transfer learningo Express intuition behind models· Train machine learning models. o Train validation test split, cross-validationo Optimizer, gradient descent, loss functions, local minima, convergence, batches, probability, etc. o Compute choice (GPU vs. CPU, distributed vs. non-distributed, platform [Spark vs. non-Spark])o Model updates and retraining§ Batch vs. real-time/online· Perform hyperparameter optimization. o Regularization§ Drop out§ L1/L2o Cross validationo Model initializationo Neural network architecture (layers/nodes), learning rate, activation functionso Tree-based models (# of trees, # of levels)o Linear models (learning rate)· Evaluate machine learning models. o Avoid overfitting/underfitting (detect and handle bias and variance)o Metrics (AUC-ROC, accuracy, precision, recall, RMSE, F1 score)o Confusion matrixo Offline and online model evaluation, A/B testingo Compare models using metrics (time to train a model, quality of model, engineering costs)o Cross validation Domain 4: Machine Learning Implementation and Operations· Build machine learning solutions for performance, availability, scalability, resiliency, and fault tolerance. o AWS environment logging and monitoring§ Cloud Trail and Cloud Watch§ Build error monitoringo Multiple regions, Multiple AZso AMI/golden imageo Docker containerso Auto Scaling groupso Rightsizing§ Instances§ Provisioned IOPS§ Volumeso Load balancingo AWS best practices· Recommend and implement the appropriate machine learning services and features for a given problem. o ML on AWS (application services)§ Poly o Lex o Transcribeo AWS service limitso Build your own model vs. Sage Maker built-in algorithmso Infrastructure: (spot, instance types), cost considerations§ Using spot instances to train deep learning models using AWS Batch· Apply basic AWS security practices to machine learning solutions. o IAMo S3 bucket policieso Security groupso VPCo Encryption/anonymization· Deploy and operationalize machine learning solutions. o Exposing endpoints and interacting with themo ML model versioningo A/B testingo Retrain pipelineso ML debugging/troubleshooting§ Detect and mitigate drop in performance o Monitor performance of the mode Below are the Tools, Technologies and Concepts covered as part of this examination:· Ingestion/Collection· Processing/ETL· Data analysis/visualization· Model training· Model deployment/inference· Operational· AWS ML application services· Language relevant to ML (Python)· Notebooks and integrated development environments (IDEs)AWS services and features Analytics:· Amazon Athena· Amazon EMR· Amazon Kinesis Data Analytics· Amazon Kinesis Data Firehose· Amazon Kinesis Data Streams· Amazon Quick Sight Compute:· AWS Batch· Amazon EC2Containers:· Amazon Elastic Container Registry (Amazon ECR)· Amazon Elastic Container Service (Amazon ECS)· Amazon Elastic Kubernetes Service (Amazon EKS)Database:· AWS Glue· Amazon Redshift Internet of Things (Io T):· AWS Io T Greengrass Version Machine Learning:· Amazon Comprehend· AWS Deep Learning AMIs (DLAMI)· AWS Deep Lens· Amazon Forecast· Amazon Fraud Detector· Amazon Lex· Amazon Polly· Amazon Rekognition· Amazon Sage Maker· Amazon Textract· Amazon Transcribe· Amazon Translate Management and Governance:· AWS Cloud Trail· Amazon Cloud Watch Networking and Content Delivery:· Amazon VPC Security, Identity, and Compliance:· AWS Identity and Access Management (IAM)Serverless:· AWS Fargate· AWS Lambda Storage:· Amazon Elastic File System (Amazon EFS)· Amazon FSx· Amazon S3