L. Liu. Adaptation cases and adaptation spaces: Notation, issues, and applications (part i: Concepts and semantics). Technical report, OGI CSE Heterodyne Working Paper, 1998. Home/Search Document Not in Database Summary Related Articles Check |
This paper is cited in the following contexts:
Ginga: A Self-Adaptive Query Processing System - Henrique Paques Paques Self-citation (Liu) (Correct)
....when accessing data across the Internet, it is important for an Internet search and query system to be self tunable within a short feedback loop between the runtime environment and the system. The Ginga project has three interesting features. First, it utilizes the Adaptation Space concept [4] to manage the proactive generation of query plans. Adaptation space o#ers a simple, yet powerful abstraction and framework to create the main query plans, define system condition changes that would render the current plan sub optimal and trigger a change to a new query plan, and manage the change ....
....plan P0 (or more generally, the current plan on execution, P i 1 ) The second part is a new query execution plan P i , optimized for the new runtime parameters, taking into account the change detected. Since there are many potential alternative plans, we organize them into an adaptation space [4]. Adaptation Space Model In general, an adaptation space consists of two main components: a set of adaptation triggers and a set of adaptation cases associated with the triggers. Formal definitions for the adaptation space model are presented in [4] In Ginga, adaptation cases are the query ....
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L. Liu. Adaptation cases and adaptation spaces: Notation, issues, and applications (part i: Concepts and semantics). Technical report, OGI CSE Heterodyne Working Paper, 1998.
Distributed Query Adaptation and Its Trade-offs - Paques, Liu, Pu Self-citation (Liu) (Correct)
....to environmental changes) In our adaptive query processing engine, called Ginga, we combine proactive alternative query plan generation with reactive monitoring and adaptation according to environmental changes. Our first contribution in this paper is the adoption of the Adaptation Space concept [9] to manage the proactive generation of query plans. These parameterized plans will service as alternatives to react to unexpected shortages of runtime resources. In addition to Adaptation Space, we also use a systematic method based on feedback to monitor the runtime environmental variables for ....
....informally present the key components of the adaptation space model as applied to query adaptation and illustrate the construction process of an adaptation space that coordinates query adaptation in the presence of network delays. Formal definitions for the adaptation space model are presented in [9]. In general, an adaptation space consists of two main components: the set of adaptation cases and the set of adaptation triggers. In this paper, adaptation cases are the query plans P i , i = 0, n , each optimized for a set of environmental parameters. An adaptation trigger is defined ....
L. Liu. Adaptation cases and adaptation spaces: Notation, issues, and applications (part i: Concepts and semantics). Technical report, OGI CSE Heterodyne Project, 1998.
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