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birds

This folder contains an example of a bird identification expert system adapted with permission from the book "Adventure in Prolog" by Amzi! Inc. The book is available on-line in HTML format at the URL:

http://www.amzi.com

Please refer to the book for more information on the original example.

The bird identification hierarchy is organized as a prototype hierarchy as follows:

        <order>
                <family>
                        <bird>

        order
                falconiforms
                        falcon
                                peregrine_falcon
                                sparrow_hawk
                        vulture
                                california_condor
                                turkey_vulture
                passerformes
                        flycatcher
                                ash_throated_flycatcher
                                great_crested_flycatcher
                        swallow
                                barn_swallow
                                cliff_swallow
                                purple_martin
                tubenose
                        fulmar
                        albatross
                                black_footed_albatross
                                laysan_albatross
                waterfowl
                        duck
                                female_mallard
                                male_mallard
                                pintail
                        goose
                                canada_goose
                                snow_goose
                        swan
                                trumpeter_swan
                                whistling_swan

Print Logtalk, Prolog backend, and kernel versions (if running as a notebook):

%versions

Start by loading the example and the required library files:

logtalk_load(birds(loader)).

Ask the expert system for help in identifying a bird (skip if running as a notebook):

(current_object(jupyter) -> true; expert::identify).

<!-- Bird identification expert system

bill:sharp_hooked? (yes or no): yes. eats:birds? (yes or no): yes. feet:curved_talons? (yes or no): yes. head:large? (yes or no): yes.

What is the value for tail? 1 : narrow_at_tip 2 : forked 3 : long_rusty 4 : square 5 : other Enter the number of choice> 1.

wings:long_pointed? (yes or no): yes.

Possible identification : peregrine_falcon

No (more) candidates found.

true. -->

Identify another bird (skip if running as a notebook):

(current_object(jupyter) -> true; expert::identify).

<!-- Bird identification expert system

bill:sharp_hooked? (yes or no): no. bill:flat? (yes or no): no. bill:short? (yes or no): no. bill:hooked? (yes or no): yes.

What is the value for flight? 1 : ponderous 2 : powerful 3 : agile 4 : flap_glide 5 : other Enter the number of choice> 2.

color:dark? (yes or no): yes. live:at_sea? (yes or no): yes. nostrils:external_tubular? (yes or no): yes.

What is the value for size? 1 : large 2 : plump 3 : medium 4 : small Enter the number of choice> 1.

wings:long_narrow? (yes or no): yes.

Possible identification : black_footed_albatross

No (more) candidates found.

true. -->