Content deleted Content added
Nux moved page Cold start (computing) to Cold start (recommender systems): not generic Tag: New redirect |
generic article Tags: Removed redirect Visual edit: Switched |
||
Line 1:
'''Cold start''' in [[computing]] refers to a problem where a system or its part was created or restarted and is not working at it's normal operation. The problem can be related to initialising internal [[Object (computer science)|objects]] or populating [[Cache (computing)|cache]] or starting up subsystems.
#REDIRECT [[Cold start (recommender systems)]]▼
In a typical [[web service]] systems the problem occurs after restarting the server and also when clearing cache (e.g. after releasing new version). First requests to the web service will cause significantly more load due to server cache being populated and due to [[Web browser|browser]] [[Web cache|cache]] being cleared and new resources requested. Other services like a [[caching proxy]] or [[web accelerator]] will also need time to gather new resources and operate normally.
Similar problem occurs when creating instances in a hosted environment and instances in [[cloud computing]] services<ref>{{Cite web|url=https://mikhail.io/serverless/coldstarts/aws/|title=Cold Starts in AWS Lambda|website=mikhail.io|language=en-us|access-date=2020-01-31}}</ref>.
Cold start (or cold boot) my also refer to a booting process of a single [[computer]] (or [[virtual machine]])<ref>{{Cite web|url=https://www.techopedia.com/definition/3332/cold-boot|title=What is Cold Boot? - Definition from Techopedia|website=Techopedia.com|language=en|access-date=2020-01-31}}</ref>. In this case [[Windows service|services]] and other startup [[Application software|applications]] are executed after reboot. System is typically made available to the user even though startup operations are still performed and slow down other operations.
Another type of problem is when the [[data model]] of a particular system requires connections between objects. In that case new objects will not operate normally until those connections are made. This is well known problem with [[Recommender system|recommender systems]]<ref>{{cite journal |last1=Bobadilla |first1=Jesús |last2=Ortega |first2=Fernando |last3=Hernando |first3=Antonio |last4=Bernal |first4=Jesús |title=A collaborative filtering approach to mitigate the new user cold start problem |journal=Knowledge-Based Systems |date=February 2012 |volume=26 |pages=225–238 |doi=10.1016/j.knosys.2011.07.021|url=http://oa.upm.es/15302/ }}</ref><ref>{{cite journal |last1=Lika |first1=Blerina |last2=Kolomvatsos |first2=Kostas |last3=Hadjiefthymiades |first3=Stathes |title=Facing the cold start problem in recommender systems |journal=Expert Systems with Applications |date=March 2014 |volume=41 |issue=4 |pages=2065–2073 |doi=10.1016/j.eswa.2013.09.005}}</ref>.
== See also ==
== References ==
<references/>
| |||