Quantum online algorithms for a model of the request-answer game with a buffer

In this paper, we considered online algorithms as a request-answer game between two players: an adversary that generates input requests and an online algorithm that answers them. A generalized version of the game that has a buffer of limited size was studied. The adversary loads data to the buffer,...

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Main Authors: K.R. Khadiev, D.I. Lin
Format: Article
Language:English
Published: Kazan Federal University 2020-09-01
Series:Учёные записки Казанского университета: Серия Физико-математические науки
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Online Access:https://kpfu.ru/uz-eng-phm-2020-3-11.html
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author K.R. Khadiev
D.I. Lin
author_facet K.R. Khadiev
D.I. Lin
author_sort K.R. Khadiev
collection DOAJ
description In this paper, we considered online algorithms as a request-answer game between two players: an adversary that generates input requests and an online algorithm that answers them. A generalized version of the game that has a buffer of limited size was studied. The adversary loads data to the buffer, while the algorithm has random access to elements of the buffer. For the model, quantum and classical (deterministic or randomized) algorithms were a focus of attention. A specific problem and a quantum algorithm that works better than any classical (deterministic or randomized) algorithm, in terms of competitive ratio, were provided. At the same time, for the problem, classical online algorithms in the standard model are equivalent to the classical algorithms in the request-answer game with a buffer model.
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publishDate 2020-09-01
publisher Kazan Federal University
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series Учёные записки Казанского университета: Серия Физико-математические науки
spelling doaj-art-90c93ce44cda4c98978e57deaf7a1ef52025-08-20T02:18:19ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Физико-математические науки2541-77462500-21982020-09-01162336738210.26907/2541-7746.2020.3.367-382Quantum online algorithms for a model of the request-answer game with a bufferK.R. Khadiev0D.I. Lin1OOO Kvantovye intellektual’nye tekhnologii, Kazan, 420111 Russia; Kazan Federal University, Kazan, 420008 Russia Kazan Federal University, Kazan, 420008 Russia; AO Bars Grup, Kazan, 420012 RussiaIn this paper, we considered online algorithms as a request-answer game between two players: an adversary that generates input requests and an online algorithm that answers them. A generalized version of the game that has a buffer of limited size was studied. The adversary loads data to the buffer, while the algorithm has random access to elements of the buffer. For the model, quantum and classical (deterministic or randomized) algorithms were a focus of attention. A specific problem and a quantum algorithm that works better than any classical (deterministic or randomized) algorithm, in terms of competitive ratio, were provided. At the same time, for the problem, classical online algorithms in the standard model are equivalent to the classical algorithms in the request-answer game with a buffer model.https://kpfu.ru/uz-eng-phm-2020-3-11.htmlquantum computationonline algorithmsrequest-answer gameonline minimization problemcomputation with buffer
spellingShingle K.R. Khadiev
D.I. Lin
Quantum online algorithms for a model of the request-answer game with a buffer
Учёные записки Казанского университета: Серия Физико-математические науки
quantum computation
online algorithms
request-answer game
online minimization problem
computation with buffer
title Quantum online algorithms for a model of the request-answer game with a buffer
title_full Quantum online algorithms for a model of the request-answer game with a buffer
title_fullStr Quantum online algorithms for a model of the request-answer game with a buffer
title_full_unstemmed Quantum online algorithms for a model of the request-answer game with a buffer
title_short Quantum online algorithms for a model of the request-answer game with a buffer
title_sort quantum online algorithms for a model of the request answer game with a buffer
topic quantum computation
online algorithms
request-answer game
online minimization problem
computation with buffer
url https://kpfu.ru/uz-eng-phm-2020-3-11.html
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