Alexander Thomasian

Orcid: 0000-0001-8684-4850

Affiliations:
  • Thomasian & Associates, Pleasantville, NY, USA


According to our database1, Alexander Thomasian authored at least 131 papers between 1976 and 2024.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Awards

IEEE Fellow

IEEE Fellow 2000, "For fundamental contributions to the design and analysis of concurrency control methods for centralized and distributed database systems and performance analysis of computer systems.".

Timeline

Legend:

Book 
In proceedings 
Article 
PhD thesis 
Dataset
Other 

Links

Online presence:

On csauthors.net:

Bibliography

2024
Heterogeneous Data Access Model for Concurrency Control and Methods to Deal with High Data Contention.
CoRR, 2024

Hierarchical Analyses Applied to Computer System Performance: Review and Call for Further Studies.
CoRR, 2024

RAID Organizations for Improved Reliability and Performance: A Not Entirely Unbiased Tutorial (1st revision).
CoRR, 2024

Dimensionality Reduced Clustered Data and Order Partition and Stepwise Dimensionality Increasing Indices.
CoRR, 2024

2023
Unbalanced Job Approximation using Taylor Series Expansion and Review of Performance Bounds.
CoRR, 2023

RAID Organizations for Improved Reliability and Performance: A Not Entirely Unbiased Tutorial.
CoRR, 2023

2022
Optimizing Apportionment of Redundancies in Hierarchical RAID.
CoRR, 2022

2021
Storage Systems: Organization, Performance, Coding, Reliability, and Their Data Processing, 1st Edition.
Morgan Kaufmann / Elsevier, ISBN: 9780323907965, 2021

2019
Mirrored and hybrid disk arrays and their reliability.
Clust. Comput., 2019

2018
Performance Analysis of Transaction Processing Systems.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Dimensionality Reduction Techniques for Nearest-Neighbor Computations.
Proceedings of the Encyclopedia of Database Systems, Second Edition, 2018

Vacationing server model for M/G/1 queues for rebuild processing in RAID5 and threshold scheduling for readers and writers.
Inf. Process. Lett., 2018

Mirrored and Hybrid Disk Arrays: Organization, Scheduling, Reliability, and Performance.
CoRR, 2018

2016
Data allocation in a Heterogeneous Disk Array (HDA) with multiple RAID levels for database applications.
Comput. Syst. Sci. Eng., 2016

2015
Singular Value Decomposition, Clustering, and Indexing for Similarity Search for Large Data Sets in High-Dimensional Spaces.
Proceedings of the Big Data - Algorithms, Analytics, and Applications., 2015

2014
Balancing disk access times in RAID5 disk arrays in degraded mode by conditionally prioritizing fork/join requests.
SIGARCH Comput. Archit. News, 2014

Analysis of Fork/Join and Related Queueing Systems.
ACM Comput. Surv., 2014

Performance Evaluation of Computer Systems.
Proceedings of the Computing Handbook, 2014

Storage Systems.
Proceedings of the Computing Handbook, 2014

2013
Disk arrays with multiple RAID levels.
SIGARCH Comput. Archit. News, 2013

Improved storage system performance by disk scheduling.
Comput. Syst. Sci. Eng., 2013

2012
Comment on "DACO: A High Performance Disk Architecture".
IEEE Trans. Computers, 2012

Rebuild processing in RAID5 with emphasis on the supplementary parity augmentation method[37].
SIGARCH Comput. Archit. News, 2012

Hierarchical RAID: Design, performance, reliability, and recovery.
J. Parallel Distributed Comput., 2012

Performance, reliability, and performability of a hybrid RAID array and a comparison with traditional RAID1 arrays.
Clust. Comput., 2012

2011
Survey and analysis of disk scheduling methods.
SIGARCH Comput. Archit. News, 2011

X-code double parity array operation with two disk failures.
Inf. Process. Lett., 2011

RAID level selection for heterogeneous disk arrays.
Clust. Comput., 2011

Data Allocation in Heterogeneous Disk Arrays.
Proceedings of the Sixth International Conference on Networking, Architecture, and Storage, 2011

Performance, Reliability, and Performability Aspects of Hierarchical RAID.
Proceedings of the Sixth International Conference on Networking, Architecture, and Storage, 2011

2010
Why specialized disks for composite operations may be unnecessary.
SIGARCH Comput. Archit. News, 2010

Storage research in industry and universities.
SIGARCH Comput. Archit. News, 2010

2009
Performance Analysis of Transaction Processing Systems.
Proceedings of the Encyclopedia of Database Systems, 2009

Storage Systems for Data Warehousing.
Proceedings of the Encyclopedia of Data Warehousing and Mining, Second Edition (4 Volumes), 2009

Higher reliability redundant disk arrays: Organization, operation, and coding.
ACM Trans. Storage, 2009

Publications on storage and systems research.
SIGARCH Comput. Archit. News, 2009

2008
Persistent clustered main memory index for accelerating <i>k</i> -NN queries on high dimensional datasets.
Multim. Tools Appl., 2008

Optimal subspace dimensionality for k-nearest-neighbor queries on clustered and dimensionality reduced datasets with SVD.
Multim. Tools Appl., 2008

Reliability and Performance of Mirrored Disk Organizations.
Comput. J., 2008

2007
Performance of Two-Disk Failure-Tolerant Disk Arrays.
IEEE Trans. Computers, 2007

Analysis of Rebuild Processing in RAID5 Disk Arrays.
Comput. J., 2007

Cost Analysis of the X-code Double Parity Array.
Proceedings of the 24th IEEE Conference on Mass Storage Systems and Technologies (MSST 2007), 2007

2006
Comment on 'RAID5 Performance with Distributed Sparing'.
IEEE Trans. Parallel Distributed Syst., 2006

Mirrored Disk Organization Reliability Analysis.
IEEE Trans. Computers, 2006

Optimization of online disk scheduling algorithms.
SIGMETRICS Perform. Evaluation Rev., 2006

Multi-level RAID for very large disk arrays.
SIGMETRICS Perform. Evaluation Rev., 2006

Shortcut method for reliability comparisons in RAID.
J. Syst. Softw., 2006

Modeling security as a dependability attribute: a refinement-based approach.
Innov. Syst. Softw. Eng., 2006

Anticipatory disk arm placement to reduce seek time.
Comput. Syst. Sci. Eng., 2006

Mirrored disk rouing and scheduling.
Clust. Comput., 2006

Persistent Semi-Dynamic Ordered Partition Index.
Comput. J., 2006

The Stepwise Dimensionality Increasing (SDI) Index for High-Dimensional Data.
Comput. J., 2006

2005
Comment on "Issues and Challenges in the Performance Analysis of Real Disk Arrays'.
IEEE Trans. Parallel Distributed Syst., 2005

Exact <i>k</i>-NN queries on clustered SVD datasets.
Inf. Process. Lett., 2005

Reconstruct versus read-modify writes in RAID.
Inf. Process. Lett., 2005

Performance Comparison of Mirrored Disk Scheduling Methods with a Shared Non-Volatile Cache.
Distributed Parallel Databases, 2005

Affinity-Based Routing in Zoned Mirrored Disks.
Comput. J., 2005

Clustered RAID Arrays and Their Access Costs.
Comput. J., 2005

Performance Evaluation of a Heterogeneous Disk Array Architecture.
Proceedings of the 13th International Symposium on Modeling, 2005

Persistent clustered main memory index for accelerating k-NN queries on high dimensional datasets.
Proceedings of the Second International Workshop on Computer Vision meets Databases, 2005

2004
Scheduling in Secondary Storage Systems.
Proceedings of the Handbook of Scheduling - Algorithms, Models, and Performance Analysis., 2004

A fair workload allocation policy for heterogeneous systems.
J. Parallel Distributed Comput., 2004

A Performance Evaluation Tool for RAID Disk Arrays.
Proceedings of the 1st International Conference on Quantitative Evaluation of Systems (QEST 2004), 2004

Rebuild Strategies for Redundant Disk Arrays.
Proceedings of the 21st IEEE Conference on Mass Storage Systems and Technologies / 12th NASA Goddard Conference on Mass Storage Systems and Technologies, 2004

Optimal Subspace Dimensionality for k-NN Search on Clustered Datasets.
Proceedings of the Database and Expert Systems Applications, 15th International Conference, 2004

2003
CSVD: Clustering and Singular Value Decomposition for Approximate Similarity Search in High-Dimensional Spaces.
IEEE Trans. Knowl. Data Eng., 2003

Data Allocation and Scheduling in Disks and Disk Arrays.
Proceedings of the Performance Tools and Applications to Networked Systems, 2003

2002
Disk scheduling policies with lookahead.
SIGMETRICS Perform. Evaluation Rev., 2002

Some new disk scheduling policies and their performance.
Proceedings of the International Conference on Measurements and Modeling of Computer Systems, 2002

2000
Performance Analysis of Concurrency Control Methods.
Proceedings of the Performance Evaluation: Origins and Directions, 2000

Performance Analysis of Database Systems.
Proceedings of the Performance Evaluation: Origins and Directions, 2000

1998
Distributed Optimistic Concurrency Control Methods for High-Performance Transaction Processing.
IEEE Trans. Knowl. Data Eng., 1998

Performance Analysis of Locking Methods with Limited Wait Depth.
Perform. Evaluation, 1998

A Multithreshold Scheduling Policy for Readers and Writers.
Inf. Sci., 1998

Concurrency Control: Methods, Performance, and Analysis.
ACM Comput. Surv., 1998

Clustering and Singular Value Decomposition for Approximate Indexing in High Dimensional Spaces.
Proceedings of the 1998 ACM CIKM International Conference on Information and Knowledge Management, 1998

1997
RAID5 Performance with Distributed Sparing.
IEEE Trans. Parallel Distributed Syst., 1997

A Performance Comparison of Locking Methods with Limited Wait Depth.
IEEE Trans. Knowl. Data Eng., 1997

1996
Database Concurrency Control - Methods, Performance and Analysis.
Advances in Database Systems 1, Kluwer / Springer, ISBN: 978-0-7923-9741-0, 1996

A More Realistic Locking Model and its Analysis.
Inf. Syst., 1996

Two-Phase Locking Performance and Its Thrashing Behavior.
Proceedings of the Performance of Concurrency Control Mechanisms in Centralized Database Systems., 1996

1995
Checkpointing for Optimistic Concurrency Control Methods.
IEEE Trans. Knowl. Data Eng., 1995

High-Performance Secondary Memory.
ACM Comput. Surv., 1995

Rebuild options in RAID5 disk arrays.
Proceedings of the Seventh IEEE Symposium on Parallel and Distributed Processing, 1995

Priority Queueing in RAID5 Disk Arrays with an NVS Cache.
Proceedings of the MASCOTS '95, 1995

1994
Approximate solutions for M/G/1 fork/join synchronization.
Proceedings of the 26th conference on Winter simulation, 1994

Fractional Data Allocation Method for Distributed Databases.
Proceedings of the Third International Conference on Parallel and Distributed Information Systems (PDIS 94), 1994

Performance Analysis of RAID5 Disk Arrays with a Vacationing Server Model for Rebuild Mode Operation.
Proceedings of the Tenth International Conference on Data Engineering, 1994

On a More Realistic Lock Contention Model and Its Analysis.
Proceedings of the Tenth International Conference on Data Engineering, 1994

1993
Determining the Number of Remote Sites Accessed in Distributed Transaction Processing.
IEEE Trans. Parallel Distributed Syst., 1993

Distributed Concurrency Control Based on Limited Wait-Depth.
IEEE Trans. Parallel Distributed Syst., 1993

Two-Phase Locking Performance and Its Thrashing Behavior.
ACM Trans. Database Syst., 1993

Performance Evaluation of a Threshold Policy for Scheduling Readers and Writers.
IEEE Trans. Computers, 1993

1992
Concurrency Control for High Contention Environments.
ACM Trans. Database Syst., 1992

Performance of Locking Policies with Limited Wait Depth.
Proceedings of the 1992 ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems, 1992

Thrashing in Two-Phase Locking Revisited.
Proceedings of the Eighth International Conference on Data Engineering, 1992

Token Allocation in Distributed Systems.
Proceedings of the 12th International Conference on Distributed Computing Systems, 1992

Distributed Concurrency Control with Limited Wait-Depth.
Proceedings of the 12th International Conference on Distributed Computing Systems, 1992

1991
Performance Analysis of Two-Phase Locking.
IEEE Trans. Software Eng., 1991

Centralized Concurrency Control Methods for High-End TP.
SIGMOD Rec., 1991

Performance Limits of Two-Phase Locking.
Proceedings of the Seventh International Conference on Data Engineering, 1991

Wait Depth Limited Concurrency Control.
Proceedings of the Seventh International Conference on Data Engineering, 1991

1990
Analysis of Database Performance with Dynamic Locking
J. ACM, July, 1990

Performance Analysis of Dynamic Locking with the No-Waiting Policy.
IEEE Trans. Software Eng., 1990

Access Invariance and Its Use in High Contention Environments.
Proceedings of the Sixth International Conference on Data Engineering, 1990

A New Distributed Optimistic Concurrency Control Method and a Comparison of its Performance with Two-Phase Locking.
Proceedings of the 10th International Conference on Distributed Computing Systems (ICDCS 1990), May 28, 1990

1989
A Recursive Solution Method to Analyze the Performance of Static Locking Systems.
IEEE Trans. Software Eng., 1989

Performance Comparison of IO Shipping and Database Call Shipping: Schemes in Multisystem Partitioned Databases.
Perform. Evaluation, 1989

Analysis of a Threshold Policy for Scheduling Readers and Writers.
Proceedings of the 1989 ACM SIGMETRICS international conference on Measurement and modeling of computer systems, 1989

1987
Performance Analysis of Centralized Databases with Optimistic Concurrency Control.
Perform. Evaluation, 1987

A Performance Study of Dynamic Load Balancing in Distributed Systems.
Proceedings of the 7th International Conference on Distributed Computing Systems, 1987

1986
Analytic Queueing Network Models for Parallel Processing of Task Systems.
IEEE Trans. Computers, 1986

On Coupling Partitioned Database Systems.
Proceedings of the 6th International Conference on Distributed Computing Systems, 1986

Performance Analysis of Dynamic Locking.
Proceedings of the Fall Joint Computer Conference, November 2-6, 1986, Dallas, Texas, USA, 1986

1985
Integrated Performance Models for Distributed Processing in Computer Communication Networks.
IEEE Trans. Software Eng., 1985

Performance Evaluation of Centralized Databases with Static Locking.
IEEE Trans. Software Eng., 1985

Analysis of Some Optimistic Concurrency Control Schemes Based on Certification.
Proceedings of the 1985 ACM SIGMETRICS conference on Measurement and modeling of computer systems, 1985

Performance Analysis of Task Systems Using a Queueing Network Model.
Proceedings of the International Workshop on Timed Petri Nets, 1985

1984
Speeding up Computer System Simulations Using Hierarchical Modeling.
SIGMETRICS Perform. Evaluation Rev., 1984

Analytic solution of an integrated performance model of a computer communication network with window flow control.
Comput. Commun. Rev., 1984

Analysis of Queueing Network Models with Population Size Constraints and Delayed Blocked Customers.
Proceedings of the 1984 ACM SIGMETRICS conference on Measurement and modeling of computer systems, 1984

Performance Analysis of Window Flow Control for Multiple Virtual Routes.
Proceedings of the Proceedings IEEE INFOCOM 84, San Francisco, CA, USA, April 9-12, 1984, 1984

Analysis of an Integrated Queuing Model of a Computer Communication Network.
Proceedings of the 4th International Conference on Distributed Computing Systems, 1984

1983
A decomposition solution to the queueing network model of the centralized DBMS with static locking.
Proceedings of the International Conference on Measurements and Modeling of Computer Systems, 1983

Queueing Network Models to Estimate Serialization Delays in Computer Systems.
Proceedings of the Performance '83, 1983

Queueing Network Models for Parallel Processing of Task Systems.
Proceedings of the International Conference on Parallel Processing, 1983

Performance Characteristics of Batch Workloads Executing on Multiprogrammed Computer Systems.
Proceedings of the Ninth International Computer Measurement Group Conference, 1983

1982
An Iterative Solution to the Queueing Network Model of a DBMS with Dynamic Locking.
Proceedings of the Eigth International Computer Measurement Group Conference, 1982

1981
Aggregation of Station in Queueing Network Models of Multiprogrammed Computers.
Proceedings of the 1981 ACM SIGMETRICS conference on Measurement and modeling of computer systems, 1981

1979
Performance Study of Loop Networks Using Buffer Insertion.
Comput. Networks, 1979

1976
A Design Study of a Shared Resource Computing System.
Proceedings of the 3rd Annual Symposium on Computer Architecture, 1976


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