Data classification - PowerPoint PPT Presentation


Ask On Data for Efficient Data Wrangling in Data Engineering

In today's data-driven world, organizations rely on robust data engineering pipelines to collect, process, and analyze vast amounts of data efficiently. At the heart of these pipelines lies data wrangling, a critical process that involves cleaning, transforming, and preparing raw data for analysis.

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Understanding Classification Keys for Identifying and Sorting Things

A classification key is a tool with questions and answers, resembling a flow chart, to identify or categorize things. It helps in unlocking the identification of objects or living things. Explore examples like the Liquorice Allsorts Challenge and Minibeast Classification Key. Also, learn how to crea

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Basics of Fingerprinting Classification and Cataloguing

Fingerprint classification is crucial in establishing a protocol for search, filing, and comparison purposes. It provides an orderly method to transition from general to specific details. Explore the Henry Classification system and the NCIC Classification, and understand why classification is pivota

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Understanding Semi-Supervised Learning: Combining Labeled and Unlabeled Data

In semi-supervised learning, we aim to enhance learning quality by leveraging both labeled and unlabeled data, considering the abundance of unlabeled data. This approach, particularly focused on semi-supervised classification, involves making model assumptions such as data clustering, distribution r

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Understanding ROC Curves in Multiclass Classification

ROC curves are extended to multiclass classification to evaluate the performance of models in scenarios such as binary, multiclass, and multilabel classifications. Different metrics such as True Positive Rate (TPR), False Positive Rate (FPR), macro, weighted, and micro averages are used to analyze t

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Understanding ICD-11 and ICHI: Terminology, Overview, and Purpose

International Classification of Diseases (ICD-11) and International Classification of Health Interventions (ICHI) provide a comprehensive framework for recording and analyzing health data globally. The system ensures semantic interoperability, integrates terminology and classification, and supports

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Understanding Classification in Data Analysis

Classification is a key form of data analysis that involves building models to categorize data into specific classes. This process, which includes learning and prediction steps, is crucial for tasks like fraud detection, marketing, and medical diagnosis. Classification helps in making informed decis

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AI Projects at WIPO: Text Classification Innovations

WIPO is applying artificial intelligence to enhance text classification in international patent and trademark systems. The projects involve automatic text categorization in the International Patent Classification and Nice classification for trademarks using neural networks. Challenges such as the av

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Understanding Sentiment Classification Methods

Sentiment classification can be done through supervised or unsupervised methods. Unsupervised methods utilize lexical resources and heuristics, while supervised methods rely on labeled examples for training. VADER is a popular tool for sentiment analysis using curated lexicons and rules. The classif

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Understanding Taxonomy and Scientific Classification

Explore the world of taxonomy and scientific classification, from the discipline of classifying organisms to assigning scientific names using binomial nomenclature. Learn the importance of italicizing scientific names, distinguish between species, and understand Linnaeus's system of classification.

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Foundations of Probabilistic Models for Classification in Machine Learning

This content delves into the principles and applications of probabilistic models for binary classification problems, focusing on algorithms and machine learning concepts. It covers topics such as generative models, conditional probabilities, Gaussian distributions, and logistic functions in the cont

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Understanding Biosystematics and Its Significance in Biological Classification

Biosystematics plays a crucial role in refining biological classification by focusing on biological criteria to define relationships within closely related species. It helps delineate biotic communities, recognize different biosystematic categories, and understand evolutionary patterns. Through the

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Overview of Fingerprint Classification and Cataloguing Methods

Explore the basics of fingerprint classification, including Henry Classification and NCIC Classification systems. Learn about the importance of classification in establishing protocols for searching and comparison. Discover the components of Henry Classification, such as primary, secondary, sub-seco

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Understanding BioStatistics: Classification of Data and Tabulation

BioStatistics involves the classification of data into groups based on common characteristics, allowing for analysis and inference. Classification organizes data into sequences, while tabulation systematically arranges data for easy comparison and analysis. This process helps simplify complex data,

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Introduction to Decision Tree Classification Techniques

Decision tree learning is a fundamental classification method involving a 3-step process: model construction, evaluation, and use. This method uses a flow-chart-like tree structure to classify instances based on attribute tests and outcomes to determine class labels. Various classification methods,

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Understanding Basic Classification Algorithms in Machine Learning

Learn about basic classification algorithms in machine learning and how they are used to build models for predicting new data. Explore classifiers like ZeroR, OneR, and Naive Bayes, along with practical examples and applications of the ZeroR algorithm. Understand the concepts of supervised learning

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Understanding Text Classification in Information Retrieval

This content delves into the concept of text classification in information retrieval, focusing on training classifiers to categorize documents into predefined classes. It discusses the formal definitions, training processes, application testing, topic classification, and provides examples of text cl

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Efficient Large-Scale Product Classification using Machine Learning and Crowdsourcing

The project aims to classify tens of millions of products into over 5000 categories efficiently. Challenges include limited training data, scarce human resources, and the need for high precision. Manual classification by analysts is slow and outsourcing is expensive. Learning-based solutions face di

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Trajectory Data Mining and Classification Overview

Dr. Yu Zheng, a leading researcher at Microsoft Research and Shanghai Jiao Tong University, delves into the paradigm of trajectory data mining, focusing on uncertainty, trajectory patterns, classification, privacy preservation, and outlier detection. The process involves segmenting trajectories, ext

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Understanding Taxonomy and Classification in Biology

Scientists use classification to group organisms logically, making it easier to study life's diversity. Taxonomy assigns universally accepted names to organisms using binomial nomenclature. Carolus Linnaeus developed this system, organizing organisms into species, genus, family, order, class, phylum

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Mineral and Energy Resources Classification and Valuation in National Accounts Balance Sheets

The presentation discusses the classification and valuation of mineral and energy resources in national accounts balance sheets, focusing on the alignment between the System of Environmental-Economic Accounting (SEEA) and the System of National Accounts (SNA) frameworks. It highlights the need for a

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Introduction to Instance-Based Learning in Data Mining

Instance-Based Learning, as discussed in the lecture notes, focuses on classifiers like Rote-learner and Nearest Neighbor. These classifiers rely on memorizing training data and determining classification based on similarity to known examples. Nearest Neighbor classifiers use the concept of k-neares

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Hierarchical Attention Transfer Network for Cross-domain Sentiment Classification

A study conducted by Zheng Li, Ying Wei, Yu Zhang, and Qiang Yang from the Hong Kong University of Science and Technology on utilizing a Hierarchical Attention Transfer Network for Cross-domain Sentiment Classification. The research focuses on sentiment classification testing data of books, training

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Strategies for Extreme Classification: Improving Quality Without Sacrifices

Can Facebook leverage data to tackle extreme classification challenges efficiently? By identifying plausible labels and invoking classifiers selectively, quality can be improved without compromise. Explore how strategies involving small sets of labels can optimize the classification process.

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Understanding Data Comparability and Quality in Food Balance Sheets

Data assessment is crucial for compiling Food Balance Sheets (FBS) to ensure comparability. The session covers dealing with different data sources, prioritizing them, rules for data comparability, and establishing a system for data search and assessment. Key points include preparing an inventory of

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UCR Time Series Classification Archive Overview

The UCR Time Series Classification Archive, funded by NSF IIS-1161997 II and NSF IIS-1510741, provides valuable resources for researchers interested in time series data analysis. The archive contains datasets in TRAIN and TEST partitions, with data instances stored in ASCII format. Researchers can u

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Event Classification in Sand with Deep Learning: DUNE-Italia Collaboration

Alessandro Ruggeri presents the collaboration between DUNE-Italia and Nu@FNAL Bologna group on event classification in sand using deep learning. The project involves applying machine learning to digitized STT data for event classification, with a focus on CNNs and processing workflows to extract pri

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Hierarchical Semi-Supervised Classification with Incomplete Class Hierarchies

This research explores the challenges and solutions in semi-supervised entity classification within incomplete class hierarchies. It addresses issues related to food, animals, vegetables, mammals, reptiles, and fruits, presenting an optimized divide-and-conquer strategy. The goal is to achieve semi-

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Assimilation of NPP VIIRS Aerosol Optical Depth Data in Global Model

Preparation and assimilation of aerosol optical depth data from NPP VIIRS into a global aerosol model, including product descriptions, data requirements, processed observations, and conclusions on VIIRS aerosol products. Details on AOT, APSP, SM classification, and environmental data records are cov

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Understanding Classification in Data Mining

Classification in data mining involves assigning objects to predefined classes based on a training dataset with known class memberships. It is a supervised learning task where a model is learned to map attribute sets to class labels for accurate classification of unseen data. The process involves tr

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Overview of Hutchinson and Takhtajan's Plant Classification System

Hutchinson and Takhtajan, as presented by Dr. R. P. Patil, Professor & Head of the Department of Botany at Deogiri College, Aurangabad, have contributed significantly to the field of plant classification. John Hutchinson, a renowned British botanist, introduced a classification system based on princ

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Understanding the EPA's Ozone Advance Program and Clean Air Act

The content covers key information about the EPA's Ozone Advance Program, including the basics of ozone, the Clean Air Act requirements, designation vs. classification, classification deadlines, and marginal classification requirements. It explains the formation of ozone, the importance of reducing

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Understanding Data Awareness and Legal Considerations

This module delves into various types of data, the sensitivity of different data types, data access, legal aspects, and data classification. Explore aggregate data, microdata, methods of data collection, identifiable, pseudonymised, and anonymised data. Learn to differentiate between individual heal

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Understanding Benthic Substrate Characterization Through Multibeam Bathymetry

Utilizing multibeam bathymetry and backscatter data, this project focuses on mapping potential benthic substrates in marine environments. The history, procedures, and possible classification schemes are discussed, highlighting the importance of analyzing backscatter data for sediment classification.

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Data Mining Course Project Overview: Pre-Processing to Classification

Explore the challenges and tasks involved in a data mining course project, from pre-processing to redefining classification tasks. The project involves handling a large dataset with numerous features, including numerical and categorical ones, addressing missing values, noisy data, and feature select

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Geometric Approach to Classification Techniques in Machine Learning

Explore the application of geometric view in advanced classification techniques as taught by David Kauchak in CS 159. Understand how data can be visualized, features turned into numerical values, and examples represented in a feature space. Dive into classification algorithms and discover how to cla

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Deep Learning for Low-Resolution Hyperspectral Satellite Image Classification

Dr. E. S. Gopi and Dr. S. Deivalakshmi propose a project at the Indian Institute of Remote Sensing to use Generative Adversarial Networks (GAN) for converting low-resolution hyperspectral images into high-resolution ones and developing a classifier for pixel-wise classification. The aim is to achiev

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Comparison of Aqua and SeaWiFS Rrs Data Error Analysis Using MOBY Data

An error analysis was conducted on Aqua and SeaWiFS Rrs data using matchup data sets classified into Optical Water Types (OWT). The analysis compared results of OWT classification using MOBY data versus satellite data, highlighting differences in error metrics such as RMSE and Bias. Aqua and SeaWiFS

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Robust High-Dimensional Classification Approaches for Limited Data Challenges

In the realm of high-dimensional classification with scarce positive examples, challenges like imbalanced data distribution and limited data availability can hinder traditional classification methods. This study explores innovative strategies such as robust covariances and smoothed kernel distributi

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Machine Learning Approach for Hierarchical Classification of Transposable Elements

This study presents a machine learning approach for the hierarchical classification of transposable elements (TEs) based on pre-annotated DNA sequences. The research includes data collection, feature extraction using k-mers, and classification approaches. Proper categorization of TEs is crucial for

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