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We propose XQGen, a stand-alone, algebra-based XPath generator to aid engineers in testing and improving the design of XML query engines. ...
In addition, given a set of labelpaths as workload input, XQGen is capable of generating query sets that honor the workload. ...
This assists users in assessing the performance of their systems where special technologies have been designed and implemented to take advantage of query workload in pursuit of better query throughput. ...
doi:10.1145/1645953.1646328
dblp:conf/cikm/WuLACB09
fatcat:easyt6jihre4zke2k2ueomv2pu
HYDRA
2018
Proceedings of the VLDB Endowment
Prior work on synthetic data regeneration suffers from critical limitations with regard to (a) scaling to large data volumes, (b) handling complex query workloads, and (c) producing data on demand. ...
Prior work on synthetic data regeneration suffers from critical limitations with regard to (a) scaling to large data volumes, (b) handling complex query workloads, and (c) producing data on demand. ...
We thank Huawei Technologies India and TCS Innovation Labs for their valuable feedback and support in this project. ...
doi:10.14778/3229863.3236238
fatcat:xqbngb7phvbo7hjwfyzowieolu
Flexible design for simple digital library tools and services
2013
Proceedings of the South African Institute for Computer Scientists and Information Technologists Conference on - SAICSIT '13
This paper builds on previous work in order to assess the flexible nature of the proposed design approach -the explicit adoption of a minimalistic approach to the overall design of DLSes. ...
sub-layer does not severely impact the interaction between the service sub-layer and the repository sub-layer. ...
ACKNOWLEDGEMENTS This research was partially funded by the National Research Foundation of South Africa (Grant numbers: 85470 and 83998) and University of Cape Town. ...
doi:10.1145/2513456.2513485
dblp:conf/saicsit/PhiriS13
fatcat:3e6eud5twrhvfiffzd67rhhfee
MetaSys: A Practical Open-Source Metadata Management System to Implement and Evaluate Cross-Layer Optimizations
[article]
2022
arXiv
pre-print
Hardware-software cooperative techniques are powerful approaches to improve the performance, quality of service, and security of general-purpose processors. ...
Using MetaSys, we perform the first detailed experimental study to quantify the performance overheads of using a single metadata management system to enable multiple cross-layer optimizations in CPUs. ...
For most workloads, even the smallest granularity we evaluated (64B) has a minimal impact on performance. ...
arXiv:2105.08123v3
fatcat:7wbb5qchpjelrklksxlvjuk3le
Subjective Usability, Mental Workload Assessments and Their Impact on Objective Human Performance
[chapter]
2017
Lecture Notes in Computer Science
The main objective was to explore the relationship between the perception of usability of the interfaces of three popular web-sites and the mental workload imposed on end-users by a set of typical tasks ...
Self-reporting procedures and inspection methods have been largely employed in the fields of interaction and web-design for assessing the usability of interfaces. ...
Similarly, [15] investigated how the design of query interfaces influence stress, workload and performance during information search. ...
doi:10.1007/978-3-319-67684-5_13
fatcat:fynminkkwrgd5i3425nagsom3m
A comprehensive approach to data warehouse testing
2009
Proceeding of the ACM twelfth international workshop on Data warehousing and OLAP - DOLAP '09
Testing is an essential part of the design life-cycle of any software product. ...
In this paper we introduce a number of data martspecific testing activities, we classify them in terms of what is tested and how it is tested, and we discuss how they can be framed within a reference design ...
Note that performance and stress tests must be focused on the front-end, that includes the client interface but also the reporting and OLAP server-side engines. ...
doi:10.1145/1651291.1651295
dblp:conf/dolap/GolfarelliR09
fatcat:3yeyoeva7jhrvagylm6b5o4lmi
Dummy Model Based Workload Modeling
2015
2015 IEEE International Conference on Systems, Man, and Cybernetics
The dummy model consumes cognitive resources to reflect the effect of workload on behavior and performance. ...
In this paper, we show how a model of human cognition based on ACT-R can be improved to accurately predict cognitive performance under different workload levels. ...
Additionally, we saw that the impact of the two secondary tasks on the performance in the main task was different, which means that the approach requires the availability of multiple dummy models for different ...
doi:10.1109/smc.2015.171
dblp:conf/smc/PutzeSP15
fatcat:7zkgtooswfee7dttecml7ssquq
Accelerating Relational Databases by Leveraging Remote Memory and RDMA
2016
Proceedings of the 2016 International Conference on Management of Data - SIGMOD '16
For a variety of workloads, the throughput and la- ...
improve query performance. ...
We also thank Justin Levandoski, Ryan Stutsman, and Lidong Zhou for the useful feedback that helped improve this paper. ...
doi:10.1145/2882903.2882949
dblp:conf/sigmod/LiDSN16
fatcat:czojcfylinej7dwklezw6lwnty
Effects of coherent, integrated, and context-dependent adaptable user interfaces on operators' situation awareness, performance, and workload
2020
Cognition, Technology & Work
The objective of this study is to evaluate the effects of the three previously developed user interface concepts on operators' situation awareness, task performance, and workload to gain better insights ...
into the benefits and limitations of the user interface design concepts. ...
Acknowledgements This research has been supported by Rijkswaterstaat, the Executive Body of the Dutch Ministry of Infrastructure and Watermanagement. ...
doi:10.1007/s10111-020-00642-z
fatcat:beng6afn5jcrdfgzxptkqnf6wq
Device aging: A reliability and security concern
2018
2018 IEEE 23rd European Test Symposium (ETS)
Device aging is an important concern in nanoscale designs. Due to aging the electrical behavior of transistors embedded in an integrated circuit deviates from original intended one. ...
It is essential to assure the security of the sensitive tasks performed by the security-sensitive circuits and to guarantee the security of information stored within these devices in the presence of aging ...
In the "stress" phase, which occurs when the transistor is on, positive interface traps are generated at the Si-SiO 2 interface. ...
doi:10.1109/ets.2018.8400702
dblp:conf/ets/KraakTHWCCSWK18
fatcat:5twnv5eofzahdpsxtlydipwfiq
Happiness index: Right-sizing the cloud's tenant-provider interface
2019
USENIX Workshop on Hot Topics in Cloud Computing
Our early results indicate that this interface could strike a good balance between enabling efficient discovery of application resource needs and the complexity of communicating a full description of tenant ...
Cloud providers and their tenants have a mutual interest in identifying optimal configurations in which to run tenant jobs, i.e., ones that achieve tenants' performance goals at minimum cost; or ones that ...
We are also grateful to Google for their support in the form of a Faculty Research Award for Ankit Singla. core. ...
dblp:conf/hotcloud/DukicS19
fatcat:7buz4x4ppbbkdkeuduum3kcp3q
Experimental Investigation of the Impact of Linear and Nonlinear Information Presentation of Problem Solving
1994
International Conference on Information Systems
This study investigates the match of technology (in this case, mode of information presentation) to problem task and the relative unportance of each to problem-solving performance. ...
Traditional methods of information presentation rely on linear or sequential media (e.g., textbooks, sequential databases and lectures). ...
We are particularly interested, for instance, in the issue of stress in ISD as we have argued that the "stress perspective" can shed revealing light on the behavioral dynamics of ISD (Wastell and Newman ...
dblp:conf/icis/RamarapuFW94
fatcat:vn6h6i2fx5awdcqseky5lgpxmq
Designing Benchmarks for P2P Systems
[chapter]
2010
Lecture Notes in Computer Science
This includes the definition of the system under test (SUT) and particularly its interfaces, the workloads and metrics. ...
We point out the characteristics of benchmarks for P2P systems, focusing on the challenges compared to conventional benchmarks. ...
Workload: The entirety of operations that are performed by the users on the SUT interface are called the workload. ...
doi:10.1007/978-3-642-17226-7_13
fatcat:jpzzxdjmcjg75jm3tx5bzf2gwa
A limits study of benefits from nanostore-based future data-centric system architectures
2012
Proceedings of the 9th conference on Computing Frontiers - CF '12
We also discuss and quantify the impact of network bandwidth, software scalability, and power density, and design tradeoffs for future NVM-based data-centric architectures. ...
The adoption of non-volatile memories (NVMs) in system architecture and the growth in data-centric workloads offer exciting opportunities for new designs. ...
This research was partially supported by the US Department of Energy under Award Number DE -SC0005026. The disclaimer can be found at http://www.hpl.hp.com/DoE-Disclaimer.html. ...
doi:10.1145/2212908.2212915
dblp:conf/cf/ChangRMRSL12
fatcat:nf4htkrtgze4fd2yevuovipzpq
How Does Manipulation of Secondary Task Scheduling Affect Human Performance?
2006
Proceedings of the Human Factors and Ergonomics Society Annual Meeting
The experiment reported here was designed to assess the benefit of placing neuro-physiological sensors on users to provide data about their cognitive states that can drive performance mitigations. ...
alters the presentation times of alerts), sensordriven mitigation (system uses sensor data to influence alert presentation times), and user-driven mitigation (participants pressed a button to influence ...
ACKNOWLEDGMENT The authors gratefully acknowledge Lockheed Martin Corporation for providing Internal Research and Development Funding during the 2005 fiscal year to support the work reported here. ...
doi:10.1177/154193120605001749
fatcat:xdw22u6vwrbm3a35jizdonm4ye
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