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Achieving graceful performance in distributed error-prone databases

K. Brahmadathan, K. V. S. Ramarao
1991 Distributed computing  
Degradation in availability is graceful.  ...  Eager DL, Sevcik KC: Achieving robustness in distributed da¬ tabase systems. ACM TODS, 8(3):354 381 (1983) 7. El Abbadi A, Toueg S: Maintaining availability in partitioned replicated databases.  ... 
doi:10.1007/bf01784718 fatcat:dqqjq42usrgk3bpt7bsqe3q4si

The Role of RBC, Hurricane Exposure, Bond Portfolio Duration, and Macroeconomic and Industry-Wide Factors in Property-Liability Insolvency Prediction

Jiang Cheng, Mary A. Weiss
2011 Social Science Research Network  
Ab s tra c t: This research analyzes the performance of the Risk Based Capital (RBC) ratio and other variables in predicting insolvencies in the property-liability insurance industry during the period  ...  In addition, the insolvency propensity is found to be significantly related to an insurer's hurricane prone area exposure, changes in interest rates, the industry-wide combined ratio, and the industry-wide  ...  Note: List of nineteen, consistently used FAST financial ratios from Cummins, Grace, and Phillips (1999) .  ... 
doi:10.2139/ssrn.1898631 fatcat:3svuyumdxnhdhbf5k6bqsa3vtu

Packet level video quality evaluation of extensive H.264/AVC and SVC transmission simulation

Robert Skupin, Cornelius Hellge, Thomas Schierl, Thomas Wiegand
2011 Journal of Internet Services and Applications  
Video transmission over error prone channels as present in most of today's communication channels, such as Mobile TV or some IPTV systems, is constantly subject to research.  ...  In this paper, we present a packet level mechanism for fast evaluation of error-prone H.264/AVC and SVC video transmission with application layer video quality metrics, such as PSNR.  ...  During simulation time, the VQE database allows for online VQE of the error-prone simulator traces on packet level.  ... 
doi:10.1007/s13174-011-0025-z fatcat:obncgbrvvfgvzdqw5cuklmyuqi

Variation-Aware Optimisation for Reconfigurable Cyber-Physical Systems [chapter]

Rui Policarpo Duarte, Christos-Savvas Bouganis
2016 IFIP Advances in Information and Communication Technology  
Both of these methods allow to achieve graceful degradation in performance whilst variation increases.  ...  Design tools are conservative in the estimation of the maximum performance that can be achieved by a design when placed on a device, accounting for any variability in the fabrication process of the device  ...  Summary Here are some of the most important concepts present in the design of DSP designs for FPGAs focused on performance optimisation, and also methods to mitigate timing errors, or to achieve graceful  ... 
doi:10.1007/978-3-319-31165-4_24 fatcat:fujdyqsf7fb43mr5txuqezwh4y


N. Viswanadham
1987 Sadhana (Bangalore)  
A preliminary failure cause-consequence analysis should be performed for the computer controlled system to identify the potential hazards associated with failures in each of the subsystems and the human  ...  The system has to maintain optimal performance during normal operation, and must also cope with randomly occurring emergencies during which the plant conditions are hostile, by taking corrective actions  ...  The resources are prone to random errors and failures.  ... 
doi:10.1007/bf02811308 fatcat:j26btmaytvc7jliswfgxly7ly4

Automatic speech recognition over error-prone wireless networks

Zheng-Hua Tan, Paul Dalsgaard, Børge Lindberg
2005 Speech Communication  
The introduction of distributed speech recognition (DSR) largely eliminates the bandwidth limitations and the presence of transmission errors becomes the key robustness issue.  ...  The past decade has witnessed a growing interest in deploying automatic speech recognition (ASR) in communication networks.  ...  For transmission over severely error-prone channels, deployment of client-based error recovery techniques is of importance in order to achieve high ASR performance.  ... 
doi:10.1016/j.specom.2005.05.007 fatcat:bpt67pij2jbkrm7cws6xr5eafq

Machine-Learned HASDM Model with Uncertainty Quantification [article]

Richard J. Licata, Piyush M. Mehta, W. Kent Tobiska, S. Huzurbazar
2021 arXiv   pre-print
(<10% mean absolute error).  ...  By comparing the best HASDM-ML model to the HASDM database along satellite orbits, we found that the model provides robust and reliable uncertainties in the density space over all space weather conditions  ...  Deep neural networks can have millions of parameters and thus are prone to overfitting. This causes undesired performance when interpolating or extrapolating.  ... 
arXiv:2109.07651v1 fatcat:fqiewnxm4rg7hpbmrug6piepkm

Automating database schema evolution in information system upgrades

Carlo Curino, Hyun J. Moon, Carlo Zaniolo
2009 Proceedings of the Second International Workshop on Hot Topics in Software Upgrades - HotSWUp '09  
graceful upgrades.  ...  The PRISM project seeks to develop the methods and tools that turn this error-prone and time-consuming process into one that is controllable, predictable and avoids down-time.  ...  This work was supported in part by NSF grant IIS 0917333, "Information Systems Under Schema Evolution: Analyzing Change Histories and Management Tools".  ... 
doi:10.1145/1656437.1656444 dblp:conf/hotswup/CurinoMZ09 fatcat:cmhmweiievgh3o66dqigluo4au

Front End Data Cleaning And Transformation In Standard Printed Form Using Neural Models [article]

Raju Dara, Dr.Ch. Satyanarayana, Dr.A.Govardhan
2014 arXiv   pre-print
Front end of data collection and loading into database manually may cause potential errors in data sets and a very time consuming process.  ...  Scanning of a data document in the form of an image and recognition of corresponding information in that image can be considered as a possible solution of this challenge.  ...  Data entry and acquisition is inherently prone to errors.  ... 
arXiv:1401.2911v1 fatcat:o4k7toghvrcvtmk3edci7i2h7e


N. M. Yazid, A. H. M. Din, K. M. Omar, Z. A. M. Som, A. H. Omar, N. A. Z. Yahaya, A. Tugi
2016 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
Waters (MAGIC) Project over marine areas in Sabah.  ...  However, GGMs also provide data from the satellite gravity missions such as GRACE, GOCE and CHAMP. Thus, this will assist to enhance the global geoid undulations data.  ...  The collected terrestrial gravity data may have medium and long wavelength errors and GGM derived quantities are relatively less prone to this type of error as mentioned by Heck (1990) .  ... 
doi:10.5194/isprs-archives-xlii-4-w1-253-2016 fatcat:i4ujw3vmurcgbagcwqhuo6eeoq

Name that tune: A pilot study in finding a melody from a sung query

Bryan Pardo, Jonah Shifrin, William Birmingham
2004 Journal of the American Society for Information Science and Technology  
Moreover, neither approach surpasses human performance.  ...  In the second approach, pieces in the database are represented as hidden Markov models (HMMs).  ...  The opinions in this article are solely those of the authors and do not necessarily reflect the opinions of the funding agencies. We also thank Roger Dannenberg for many helpful comments.  ... 
doi:10.1002/asi.10373 fatcat:gpyonj3c2je2ni5jti2hdyuxpu

The adaptable buffer algorithm for high quantile estimation in non-stationary data streams [article]

Ognjen Arandjelovic, Duc-Son Pham, Svetha Venkatesh
2015 arXiv   pre-print
The need to estimate a particular quantile of a distribution is an important problem which frequently arises in many computer vision and signal processing applications.  ...  a manner adaptive to changes in the distribution of data and progressively narrowing down its focus in the periods of quasi-stationary stochasticity, and (iv) we present a comprehensive evaluation of  ...  Unlike any of the existing algorithms, our method exhibits very gradual and graceful degradation in performance, and still achieves remarkable accuracy even with a severely restricted buffer capacity.  ... 
arXiv:1504.05302v1 fatcat:z2w3jl445fbknjajmjjfdmil6i

Graceful database schema evolution

Carlo A. Curino, Hyun J. Moon, Carlo Zaniolo
2008 Proceedings of the VLDB Endowment  
Supporting graceful schema evolution represents an unsolved problem for traditional information systems that is further exacerbated in web information systems, such as Wikipedia and public scientific databases  ...  As of today, schema evolution remains an error-prone and time-consuming undertaking, because the DB Administrator (DBA) lacks the methods and tools needed to manage and automate this endeavor by (i) predicting  ...  This work was supported in part by NSF-IIS award 0705345: "III-COR: Collaborative Research: Graceful Evolution and Historical Queries in Information Systems-A Unified Approach".  ... 
doi:10.14778/1453856.1453939 fatcat:3inn5farenhzxl2wmu7ff2eguu

A multiresolution manifold distance for invariant image similarity

N. Vasconcelos, A. Lippman
2005 IEEE transactions on multimedia  
In particular, we embed the TD into a multi-resolution framework that makes it significantly less prone to local minima.  ...  Experimental results on a movie database indicate that the distance could be used as a basis for the extraction of semantic primitives such as action and romance.  ...  For this, we start by noticing that the error rate achievable by any classifier is strongly dependent on how well the underlying representation separates the various image classes in the database.  ... 
doi:10.1109/tmm.2004.840596 fatcat:iycvwhbr75hzvl4cnzbfr5hq7e

Toward an Anti-fragile e-Government System [chapter]

Kjell Jørgen Hole
2016 Anti-fragile ICT Systems  
The testing was inadequate in all phases of the development process and the ability to rectify discovered errors was limited.  ...  , distribution, and reproduction in any medium, provided the original author(s) and source are credited.  ... 
doi:10.1007/978-3-319-30070-2_6 fatcat:jr4mdixty5e45coqtxoyzpsrka
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