Classification

Classification. Chapter 18. Characteristics of Living Things. Section 1-3. Characteristic. Examples. Living things are made up of units called cells. Many microorganisms consist of only a single cell. Animals and trees are multicellular. Living things reproduce.

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Classification

Classification. Classification is putting organisms into groups based on similarities and differences How do you decide who goes into what group? Look at characteristics Try to figure out which are the most “important”. Why Classify??? . Human nature- we love to put things in their place!

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Classification

Classification. Assumptions: Nature is Lawful, Uniform & Intelligible. Classification based on utility : edible vs inedible, poisonous vs non poisonous, where found, etc.

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Classification

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Classification Dewey Decimal Classification

Classification Dewey Decimal Classification. Classification in Context . Obtain information package. Describe information package in surrogate record. Subject analyze information package in surrogate record: Verbal Classification . Classification.

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Classification Techniques: Bayesian Classification

Classification Techniques: Bayesian Classification. Bamshad Mobasher DePaul University. Classification: 3 Step Process. 1. Model construction ( Learning ): Each record (instance, example) is assumed to belong to a predefined class, as determined by one of the attributes

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CLASSIFICATION

CLASSIFICATION. Why Classification? * study the diversity of life. * group and name organisms in a logical manner. Taxonomy : science of classifying living things using scientific names. Early Classification. Aristotle: 350 B.C.

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Classification

Classification. Why Do Scientists Classify?. KEY CONCEPT: Biologists use classification to organize living things into groups so that the organisms are easier to study. Classification is grouping things together based on their similarities.

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Classification

Classification. Introduction. A discriminant is a function that separates the examples of different classes. For example IF (income > Q1 and saving >Q2) Then low risk customer ELSE High risk customer

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Classification

Eukaryote. Prokaryote. Archaebacteria & Bacteria. Classification. Old 5 Kingdom system Monera , Protists, Plants, Fungi, Animals New 3 Domain system reflects a greater understanding of evolution & molecular evidence Prokaryote: Bacteria Prokaryote: Archaebacteria Eukaryotes Protists

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Classification

Classification. Headings Vocabulary Important Words. CLASSIFICATION & TAXONOMY. Classification : grouping based on similarities Taxonomy : Branch of Biology The science of classifying grouping and naming of organisms. Aristotle’s Classification Scheme.

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Classification

Classification. Chapter 18. What’s Wrong Here?. Classification. To study the diversity of life, biologists use a classification system to name organisms and group them in a logical manner

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Classification

Classification. Taxonomy. The branch of biology that classifies organisms into taxa (taxon is singular). The Seven Taxa. Kingdom (most diverse) Phylum Class Order Family Genus Species (least diverse).

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Classification

Classification. Assumptions: Nature is Lawful, Uniform & Intelligible. Classification based on utility : edible vs inedible, poisonous vs non poisonous, where found, etc.

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Classification

Classification. Classification. Task: Given a set of pre-classified examples, build a model or classifier to classify new cases. Supervised learning: classes are known for the examples used to build the classifier. A classifier can be a set of rules, a decision tree, a neural network, etc.

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Classification

Classification. Chapter 18. The Need for Systems. Taxonomy -the practice of naming and classifying organisms Biologist use taxonomic systems to organize their knowledge of organisms. These systems attempt to provide consistent ways to name and categorize organisms. Early Scientific Names.

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Classification

Classification. http://glencoe.mcgraw-hill.com/sites/dl/free/007869387x/164213/00044691.html. Kingdom Protista. Eukaryotes Unicellular and multicellular Autotrophic and/or heterotrophic Why study them? Important part of food chain Some are parasitic. Divided into 3 main groups: Algae

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