skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


Search for: All records

Creators/Authors contains: "Bari, Agrim"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. The effective management of the vast amounts of data processed or required by modern cloud and edge computing systems remains a fundamental challenge. This paper focuses on cache management for applications where data objects can be stored in layered representations. In such representations, each additional data layer enhances the “quality” of the object’s version, albeit at the cost of increased memory usage. This layered approach is advantageous in various scenarios, including the delivery of zoomable maps, video coding, future virtual reality gaming, and layered neural network models, where additional data layers improve quality/inference accuracy. In systems where users or devices request different versions of a data object, layered representations provide the flexibility needed for caching policies to achieve improved hit rates, i.e., delivering the specific representations required by users. This paper investigates the performance of the Least Recently Used (LRU) caching policy in the context of layered representation for data, referred to as Layered LRU (LLRU). To this end, we develop an asymptotically accurate analytical model for LLRU. We analyze how LLRU’s performance is influenced by factors such as the number of layers, as well as the popularity and size of an object’s layers. For example, our results demonstrate that, in the case of LLRU, adding more layers does not always enhance performance. Instead, the effectiveness of LLRU depends intricately on the popularity distribution and size characteristics of the layers. 
    more » « less
    Free, publicly-accessible full text available July 20, 2026