Honeybees Spread Information Efficiently

Honeybees do a dance that tells their fellow bees the distance, direction, and even the quality of a source of nectar. After discovering nectar, a bee returns to the nest to convey the location and amount to the rest of the bees. An appropriate number of bees then head out to collect the nectar. This prevents more honey bees than are needed from going to a single source. In this way, honeybees work together to collect nectar efficiently.

Resouce/Energy/Information Transmission & Production:: Luminescence

Network、
Community

The example of honeybee foraging has been used to solve the problem of job shop scheduling.

History
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Request History
4 previous requests available
====
Session
+ –
Session
- Config
  userAgent146b278961f0b80dc105e136efd48481
  time1735233695
  timeout10
====
Request
+ –
Request

Cake Params
- controllercontents
- actionview
- named(empty)
- pass
  057
- plugin(null)
- form(empty)
- url
  urlcontents/view/57
- isAjax(false)
$_GET
- urlcontents/view/57
Cookie
- 0(empty)
Current Route
- keys
  0controller
  1action
- options(empty)
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  actionindex
- template/:controller/:action/*
- _greedy(true)
- _compiledRoute#^/(?:([^/]+))/(?:([^/]+))(?:/(?P<_args_>.*))?[/]*$#
- __headerMap
  typecontent_type
  methodrequest_method
  serverserver_name
====

Sql Log

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Sql Logs

default

Query	Affected	Num. rows	Took (ms)	Actions
SHOW FULL COLUMNS FROM `contents`	16	16	3	maybe slow
SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= 'utf8_general_ci';	1	1	1
SHOW FULL COLUMNS FROM `users`	10	10	2	maybe slow
SHOW FULL COLUMNS FROM `groups`	4	4	2	maybe slow
SHOW FULL COLUMNS FROM `permissions`	5	5	10	maybe slow
SHOW FULL COLUMNS FROM `groups_permissions`	3	3	2	maybe slow
SHOW FULL COLUMNS FROM `groups_users`	3	3	2	maybe slow
SHOW FULL COLUMNS FROM `contents_searches`	6	6	3	maybe slow
SHOW FULL COLUMNS FROM `attachments`	11	11	3	maybe slow
SHOW FULL COLUMNS FROM `attachments_revs`	13	13	3	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `related_items`	6	6	10	maybe slow
SHOW FULL COLUMNS FROM `contents_related_items_revs`	8	8	2	maybe slow
SHOW FULL COLUMNS FROM `contents_tags`	5	5	2	maybe slow
SHOW FULL COLUMNS FROM `tags`	7	7	2	maybe slow
SHOW FULL COLUMNS FROM `tag_groups`	6	6	2	maybe slow
SHOW FULL COLUMNS FROM `contents_tags_revs`	7	7	2	maybe slow
SHOW FULL COLUMNS FROM `contents_revs`	18	18	15	maybe slow
SELECT `Content`.`id`, `Content`.`user_id`, `Content`.`last_edit_user_id`, `Content`.`post_date`, `Content`.`post_date_year`, `Content`.`post_date_month`, `Content`.`post_date_day`, `Content`.`title`, `Content`.`title_en`, `Content`.`content`, `Content`.`plain_content`, `Content`.`page_view`, `Content`.`flag`, `Content`.`mod_count`, `Content`.`created`, `Content`.`modified` FROM `contents` AS `Content` WHERE `id` = 57 LIMIT 1	1	1	0
SELECT `Attachment`.`file_name`, `Attachment`.`dir`, `Attachment`.`model`, `Attachment`.`foreign_key` FROM `attachments` AS `Attachment` WHERE `file_name` <> 'default.jpg' AND `Attachment`.`foreign_key` = (57)	1	1	0
SELECT `ContentsRelatedItem`.`content`, `ContentsRelatedItem`.`related_item_id`, `ContentsRelatedItem`.`content_id` FROM `contents_related_items` AS `ContentsRelatedItem` WHERE `ContentsRelatedItem`.`content_id` = (57)	12	12	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 1	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 2	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 5	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 6	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 7	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 8	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 9	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 4	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 11	1	1	0
SELECT `RelatedItem`.`code`, `RelatedItem`.`name` FROM `related_items` AS `RelatedItem` WHERE `RelatedItem`.`id` = 12	1	1	0
SELECT `ContentsTag`.`id`, `ContentsTag`.`tag_group_id`, `ContentsTag`.`mod_count`, `ContentsTag`.`tag_id`, `ContentsTag`.`content_id` FROM `contents_tags` AS `ContentsTag` WHERE `ContentsTag`.`content_id` = (57)	3	3	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 16	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 2	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 92	1	1	0
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 7	1	1	0
SELECT `Tag`.`name`, `Tag`.`comment`, `Tag`.`tag_group_id` FROM `tags` AS `Tag` WHERE `Tag`.`id` = 93	1	1	12	maybe slow
SELECT `TagGroup`.`code`, `TagGroup`.`name` FROM `tag_groups` AS `TagGroup` WHERE `TagGroup`.`id` = 7	1	1	0
SELECT `RelatedItem`.`id`, `RelatedItem`.`code`, `RelatedItem`.`name`, `RelatedItem`.`created`, `RelatedItem`.`modified`, `RelatedItem`.`flag` FROM `related_items` AS `RelatedItem` WHERE `code` = 'function' LIMIT 1	1	1	0
SELECT `Content`.`id`, `Content`.`title`, `Content`.`title_en` FROM `contents` AS `Content` WHERE id = (NULL) ORDER BY `id` desc	0	0	0

Query Explain:

Click an "Explain" link above, to see the query explanation.

====

Timer

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Memory

Peak Memory Use 8.89 MB

Message	Memory use
Component intitailization	6.79 MB
Controller action start	6.83 MB
Controller render start	6.91 MB
View render complete	7.93 MB

Timers

Total Request Time: 979 (ms)

Message	Time in ms	Graph
Core Processing (Derived)	463.41
Component initialization and startup	18.14
Controller action	51.61
Render Controller Action	73.08
» Rendering View	68.41
» » Rendering APP/views/contents/view.ctp	46.00
» » Rendering APP/views/layouts/default.ctp	20.14
» » » Rendering APP/views/elements/header.ctp	1.73
» » » Rendering APP/views/elements/content_sidebar.ctp	0.38
» » » Rendering APP/views/elements/footer.ctp	0.63

====

Log
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Logs

====
Variables
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View Variables
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  id1485
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  tag_id16
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  Tag
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  0Honeybees do a dance that tells their fellow bees the distance, direction, and even the quality of a source of nectar. After discovering nectar, a bee returns to the nest to convey the location and amount to the rest of the bees. An appropriate number of bees then head out to collect the nectar. This prevents more honey bees than are needed from going to a single source. In this way, honeybees work together to collect nectar efficiently.
  ref_info
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  0The example of honeybee foraging has been used to solve the problem of job shop scheduling.
  product
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  0(1) A waggle dance summons foraging bees. (2) A tremble dance summons food receiver bees. (3) A shaking dance summons worker bees from inside the hive to become foraging bees. If the bee has to wait for more than 50 seconds for a response, it will perform the tremble dance to summon more food receiver bees. Photo by <a href="http://www.flickr.com/photos/da100fotos/" target="_blank">Danny Perez Photography</a> / <a href="http://creativecommons.org/licenses/by-nc-nd/2.0/" target="_blank">CC BY-NC-ND 2.0</a><br /><span style="font-size:80%;">From the Amazing Nature Database.</span>
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  properties
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  titleHoneybees Spread Information Efficiently
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  created2011-02-04 17:47:44
  modified2012-03-16 11:39:36
- related_contentsArray
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  9javascript
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====

Honeybees Spread Information Efficiently

Request History

Session

Request

Cake Params

$_GET

Cookie

Current Route

Sql Logs

default

Query Explain:

Memory

Timers

Logs

View Variables