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Advanced machine learning techniques focus on handling complex data types, primarily sequential data commonly found in text, speech, time series, and videos. The chapter explores Recurrent Neural Networks (RNNs), including Long Short-Term Memory (LSTM) networks and Gated Recurrent Units (GRUs), addressing their applications in natural language processing, time series forecasting, and association rule mining through the Apriori algorithm. It also examines recommender systems and compares content-based and collaborative filtering approaches.
13.1
Recurrent Neural Networks (Rnns) For Sequential Data: Lstms, Grus (Conceptual Overview)
This section introduces Recurrent Neural Networks (RNNs), specifically focusing on Long Short-Term Memory (LSTM) networks and Gated Recurrent Units (GRUs), exploring their significance in handling sequential data.
13.2.1
Natural Language Processing (Nlp) - Sentiment Analysis
This section discusses sentiment analysis as a key application of Natural Language Processing, leveraging Recurrent Neural Networks (RNNs) to interpret the sentiment of text based on word sequences and contextual understanding.
Lab.Option A
Basic Text Classification With Recurrent Neural Networks (Conceptual Walkthrough)
The section outlines the conceptual steps for building a text classification model using Recurrent Neural Networks (RNNs), emphasizing data preprocessing, model construction, and evaluation.
References
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Memorization
What we have learnt
Final Test
Revision Tests
Term: Recurrent Neural Networks (RNNs)
Definition: A type of neural network designed to recognize patterns in sequences of data, utilizing memory from previous inputs.
Term: Long ShortTerm Memory (LSTM)
Definition: A variant of RNN that includes mechanisms to prevent the vanishing gradient problem, allowing it to remember information for longer sequences.
Term: Gated Recurrent Units (GRU)
Definition: A simplified version of LSTM that combines the functions of the forget and input gates into a single update gate.
Term: Apriori Algorithm
Definition: An algorithm used in association rule mining to find frequent itemsets by leveraging the Apriori principle that states all subsets of a frequent itemset must also be frequent.
Term: Support
Definition: A metric indicating how often an itemset appears in the dataset, calculated as the ratio of transactions containing the itemset to the total number of transactions.
Term: Confidence
Definition: A measure of how often items in the consequent of a rule appear in transactions that contain the antecedent, indicating the rule's reliability.
Term: Lift
Definition: A metric that determines the strength of an association rule by comparing the likelihood of the consequent occurring with and without the antecedent.
Term: Contentbased Filtering
Definition: A recommender system technique that suggests items based on the characteristics of items a user has previously liked or interacted with.
Term: Collaborative Filtering
Definition: A method of making recommendations based on user-item interactions, leveraging similarities between users or items based on past behavior.