Data Migration on Parallel Disks: Algorithms and Evaluation (2009)
Leana Golubchik, Samir Khuller, Yoo-ah Kim, Svetlana Shargorodskaya, Justin Wan
Abstract. Our work is motivated by the problem of managing data on storage devices, typically a set of disks. Such storage servers are used as web servers or multimedia servers, for handling high...
Device Independence and Extensibility in Gesture Recognition \Lambda (2009)
Jacob Eisenstein, Shahram Gh, Leana Golubchik, Cyrus Shahabi, Donghui Yan, Roger Zimmermann
Gesture recognition offers a new medium for human-computer interaction that can be both efficient and highly intuitive. However, gesture recognition software is stillin its infancy. While many...
Device Independence and Extensibility in Gesture Recognition (2009)
Jacob Eisenstein, Shahram Gh, Leana Golubchik, Cyrus Shahabi, Donghui Yan, Roger Zimmermann
Gesture recognition techniques often suffer from being highly device-dependent and hard to extend. If a system is trained using data from a specific glove input device, that system is typically...
Automatic Request Categorization in Internet Services ABSTRACT (2009)
Abhishek Sharma, Ranjita Bhagwan, Monojit Choudhury, Leana Golubchik, Ramesh Govindan, Geoffrey M. Voelker
Modeling system performance and workload characteristics has become essential for efficiently provisioning Internet services and for accurately predicting future resource requirements on anticipated...
Overview of CENS Statistics and Data Practices Research (2009)
Fearon, David, Mayernik, Matt, Mayoral, Keith, Nair, Sheela, Parker, Andrew, Pepe, Alberto, ...
Data, statistical models and inferential procedures permeate CENS deployments, from the four founding scientific application areas to the more recent urban sensing campaigns. This cross-center...
Data Migration on Parallel Disks: Algorithms and Evaluation � (2009)
Leana Golubchik, Samir Khuller, Yoo-ah Kim, Svetlana Shargorodskaya, Justin Wan
Abstract. Our work is motivated by the problem of managing data on storage devices, typically a set of disks. Such storage servers are used as web servers or multimedia servers, for handling high...
Michael D. Beynon, Leana Golubchik, Pete Keleher, Ben Bederson
Wide-area Data Intensive Applications: My dissertation addresses some of the problems in making data intensive applications more scalable and efficient in a distributed wide-area environment....
A Performance Study of Bistro, a Scalable Upload Architecture (2008)
William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller
Hot spots are a major obstacle to achieving scalability in the Internet. We have observed that the existence of hot spots in upload applications (whose examples include submission of income tax forms...
Sharing Continuous, Media Systems, Leana Golubchik, Richard Muntz, David B. Lomet, ...
is published quarterly and is distributed to all TC members. Its scope includes the design, implementation, modelling, theory and application of database systems and their technology. Letters,...
Jaideep Srivastava, Thomas M. Niccum, Bhaskar Himatsingka, Leana Golubchik, Richard R. Muntz, Gerhard Weikum, ...
is published quarterly and is distributed to all TC members. Its scope includes the design, implementation, modelling, theory and application of database systems and their technology. Letters,...
William C. Cheng, Leana Golubchik
In recent years, it has been demonstrated that collisions can be systematically constructed for some popular cryptographic hash algorithms, such as MD5 and SHA-1. Various ways of enhancing these hash...
A Bayesian Model for Predicting Reliability of Software Systems at the Architectural Level (2008)
Roshanak Rosh, Nenad Medvidovic, Leana Golubchik
Abstract: Modern society relies heavily on complex software systems for everyday activities. Dependability of these systems thus has become a critical feature that determines which products are going...
Merging video streams in a multimedia storage server:
Government at all levels is a major collector and provider of data. (2008)
Leana Golubchik, Samir Khuller, William C. Cheng, Hanan Samet, Cheng-fu Chou
In this project we focus on the collection of data over wide-area networks and address the scalability issues which arise in the context of Internet-based massive data collection applications....
Mary Y. Y, Leung John, C. S. Lui, Leana Golubchik, Shatin N. T, Honrr Kong
To design a cost effective VOD server, it is important to carefully manage the system resources so that the num-ber of concurrent viewers can be maximized. Previous re-search results use data sharing...
Cheng-fu Chou, Leana Golubchik
In this paper, we consider performance evaluation of a system which shares K servers (or resources) among N heteroge-neous classes of workloads, where server allocation and de-allocation for class i...
Fast Reconfiguration of Data Placement in Parallel Disks ∗ (2008)
Srinivas Kashyap, Samir Khuller, Leana Golubchik
The “How much information? ” study produced by the school of information management and systems at the University of California at Berkeley [10], estimates that about 5 exabytes of new...
Data Migration on Parallel Disks \Lambda (2008)
storage system. Typically, a large storage server consists ofseveral disks connected using a dedicated network, called a Storage Area Network. Disks typically have constraints onstorage as well as...
In this paper, we consider a K-server threshold-based queueing system with hysteresis in which the number of servers, employed for servicing customers, is governed by a forward threshold vector F =...
Abstract Reducing 1/0 Demand in Video-On-Demand Storage Servers (2008)
Leana Golubchik, John C. S, Luit Richard Muntzt
Recent technological advances have made multimedia on-de-mand services, such as home entertainment and borne-shop-ping, important to the consumer market. One of the most challenging aspects of this...
Jaideep Srivastava, Thomas M. Niccum, Bhaskar Himatsingka, Leana Golubchik, Richard R. Muntz, David B. Lomet, ...
is published quarterly and is distributed to all TC members. Its scope includes the design, implementation, modelling, theory and application of database systems and their technology. Letters,...
Bistro: a Framework for Building Scalable Wide-Area Upload Applications (2007)
Samrat Bhattacharjee, William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller
Hot spots are a major obstacle to achieving scalability in the Internet. At the application layer, hot spots are usually caused by either (a) high demand for some data or (b) high demand for a...
Bolshoi - A Modeling Spreadsheet (Improving Usability of Complex Analytical Modeling Tools) (2007)
William C. Cheng, Leana Golubchik
Spreadsheet programs are very popular financial modeling tools because they allow users to juggle numbers and formulas with a powerful yet intuitive and easy to understand user interface; also, they...
ViPEr-HiSS: A Case for Storage Design Tools (2007)
Leana Golubchik, Joseph Dunnick, Jeffrey K. Hollingsworth
The viability of large-scale multimedia applications, depends on the performance of storage systems. Providing cost-effective access to vast amounts of video, image, audio, and text data, requires...
December Vol, Letter Editor-in-chief, David Lomet, Rajeev Rastogi, Avi Silberschatz, Leana Golubchik, ...
A growing number of applications need access to video data stored in digital form on secondary storage devices (e.g., video-on-demand, multimedia messaging). As a result, video servers that are...
December Vol, Rajeev Rastogi, Avi Silberschatz, Leana Golubchik, Richard Muntz, ...
A growing number of applications need access to video data stored in digital form on secondary storage devices (e.g., video-on-demand, multimedia messaging). As a result, video servers that are...
December Vol, Letter Editor-in-chief, David Lomet, Rajeev Rastogi, Avi Silberschatz, Leana Golubchik, ...
A growing number of applications need access to video data stored in digital form on secondary storage devices (e.g., video-on-demand, multimedia messaging). As a result, video servers that are...
December Vol, Rajeev Rastogi, Avi Silberschatz, Leana Golubchik, Richard Muntz, ...
A growing number of applications need access to video data stored in digital form on secondary storage devices (e.g., video-on-demand, multimedia messaging). As a result, video servers that are...
Evaluation of Tradeoffs in Resource Management Techniques for Multimedia Storage Servers (2007)
Leana Golubchik, H. Richard Gail
Many modern applications can benefit from sharing of resources such as network bandwidth, disk bandwidth, and so on. In addition, information systems would like to store data that can be of use to...
Bistro: a Framework for Building Scalable Wide-Area Upload (2007)
Applications Samrat Bhattacharjee, Samrat Bhattacharjee, William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller
in the Internet. At the application layer, hot spots are usually caused by either (a) high demand for some data or (b) high demand for a certain service. This high demand for data or services, is...
Multi-Layer Gesture Recognition: An Experimental Evaluation (2007)
Jacob Eisenstein Shahram, Shahram Gh, Leana Golubchik, Cyrus Shahabi, Donghui Yan, Roger Zimmermann
Gesture recognition techniques often suffer from being highly device-dependent and hard to extend.
Device Independence and Extensibility in Gesture Recognition ∗ (2007)
Jacob Eisenstein, Shahram Gh, Leana Golubchik, Cyrus Shahabi, Donghui Yan, Roger Zimmermann
Gesture recognition techniques often suffer from being highly device-dependent and hard to extend. If a system is trained using data from a specific glove input device, that system is typically...
Leana Golubchik, Samir Khuller, Yoo-ah Kim
Our work is motivated by the problem of managing data on storage devices, typically a set of disks. Such storage servers are used as web servers or multimedia servers, for handling high demand for...
On the Prevalence of Sensor Faults in Real-World Deployments (2007)
Sharma, Abhishek, Golubchik, Leana, Govindan, Ramesh
Various sensor network measurement studies have reported instances of transient faults in sensor readings. In this work, we seek to answer a simple question: How often are such faults observed in...
AMBROSia: An Autonomous Model-Based Reactive Observing System (2007)
Caron, David A., Das, Abhimanyu, Dhariwal, Amit, Golubchik, Leana, Govindan, Ramesh, Kempe, David, ...
Observing systems facilitate scientific studies by instrumenting the real world and collecting corresponding measurements, with the aim of detecting and tracking phenomena of interest. Our AMBROSia...
On the prevalence of sensor faults in real-world deployments (2007)
Abhishek Sharma, Leana Golubchik, Ramesh Govindan
Abstract—Various sensor network measurement studies have reported instances of transient faults in sensor readings. In this work, we seek to answer a simple question: How often are such faults...
A Generic Multi-Scale Modeling Framework for Reactive Observing Systems: An Overview (2006)
Golubchik, Leana, Caron, David A., Das, Abhimanyu, Dhariwal, Amit, Govindan, Ramesh, Kempe, David, ...
Observing systems facilitate scientific studies by instrumenting the real world and collecting corresponding measurements, with the aim of detecting and tracking phenomena of interest. A wide range...
Data Migration on Parallel Disks (2003)
Golubchik, Leana, Khuller, Samir, Kim, Yoo-Ah, Shargorodskaya, Svetlana, Wan, Yung-Chun (Justin)
Our work is motivated by the problem of managing data on storage devices, typically a set of disks. Such high demand storage servers are used as web servers or multimedia servers, for handling high...
Data Migration on Parallel Disks (2003)
Golubchik, Leana, Khuller, Samir, Kim, Yoo-Ah, Shargorodskaya, Svetlana, Wan, Yung-Chun (Justin)
Our work is motivated by the problem of managing data on storage devices, typically a set of disks. Such high demand storage servers are used as web servers or multimedia servers, for handling high...
Large-scale Data Collection: a Coordinated Approach (2003)
William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller, Yung-Chun (Justin) Wan
In this paper we consider the problem of collecting a large amount of data from several different hosts to a single destination in a wide-area network. Often, due to congestion conditions, the paths...
Device Independence and Extensibility in Gesture Recognition (2003)
Jacob Eisenstein Shahram, Shahram Gh, Leana Golubchik, Cyrus Shahabi, Donghui Yan, Roger Zimmermann
Gesture recognition techniques often suffer from being highly device-dependent and hard to extend. If a system is trained using data from a specific glove input device, that system is typically...
A Performance Study of a Large-scale Data Collection Problem (2002)
Chou, Cheng-Fu, Wan, Yung-Chun (Justin), Cheng, William C., Golubchik, Leana, Khuller, Samir
In this paper, we consider the problem of moving a large amount of data from several source hosts to a destination host over a wide-area network, i.e., a large-scale data collection problem. This...
A Performance Study of a Large-scale Data Collection Problem (2002)
Chou, Cheng-Fu, Wan, Yung-Chun (Justin), Cheng, William C., Golubchik, Leana, Khuller, Samir
In this paper, we consider the problem of moving a large amount of data from several source hosts to a destination host over a wide-area network, i.e., a large-scale data collection problem. This...
Performance of Batch-based Digital Signatures (2002)
Cheng, William C., Chou, Cheng-Fu, Golubchik, Leana
A Digital Signature is an important type of authentication in a public-key (or asymmetric) cryptographic system, and it is in wide use. The performance of an Internet server computing digital...
On a Graph-theoretic Approach to Scheduling Large-scale Data Transfers (2002)
Cheng, William C., Chou, Cheng-Fu, Golubchik, Leana, Khuller, Samir, Wan, Yungchun (Justin)
In this paper we consider the problem of moving a large amount of data from several different hosts to a single destination in a wide-area network. Often, due to congestion conditions, the choice of...
Performance of Batch-based Digital Signatures (2002)
Cheng, William C., Chou, Cheng-Fu, Golubchik, Leana
A Digital Signature is an important type of authentication in a public-key (or asymmetric) cryptographic system, and it is in wide use. The performance of an Internet server computing digital...
On a Graph-theoretic Approach to Scheduling Large-scale Data Transfers (2002)
Cheng, William C., Chou, Cheng-Fu, Golubchik, Leana, Khuller, Samir, Wan, Yungchun (Justin)
In this paper we consider the problem of moving a large amount of data from several different hosts to a single destination in a wide-area network. Often, due to congestion conditions, the choice of...
On a graph-theoretic approach to scheduling large-scale data transfers (2002)
William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller, Yungchun (justin Wan
In this paper we consider the problem of moving a large amount of data from several dierent hosts to a single destination in a wide-area network. Often, due to congestion conditions, the choice of...
Design of Scalable Continuous Media Servers with Dynamic Replication (2002)
Chengfu Chou, Leana Golubchik, I-hsin Chung
Multimedia applications place high demands for quality-of-service (QoS), performance, and reliability on systems. These stringent requirements make design of cost-effective and scalable systems...
A Performance Study of a Large-scale Data Collection Problem (2002)
William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller
We consider the problem of moving a large amount of data from several source hosts to a destination host over a wide-area network, i.e., a large-scale data collection problem. This problem is...
Multi-path Streaming: Is It Worth the Trouble? (2002)
s to the receiver. We note that such paths do not have to be completely disjoint, i.e., it is sufficient for them to have disjoint points of congestion or bottlenecks. Existence of multiple paths...
AbstractÐIn designing cost-effective video-on-demand (VOD) servers, efficient resource management and proper system sizing are of great importance. In addition to large storage and I/O bandwidth...
A Performance Study of a Large-scale Data Collection Problem (2002)
Cheng-fu Chou, Yung-Chun (Justin) Wan, William C. Cheng, Leana Golubchik, Samir Khuller
We consider the problem of moving a large amount of data from several source hosts to a destination host over a wide-area network, i.e., a large-scale data collection problem. This problem is...
Design of Scalable Continuous Media Servers with Dynamic Replication (2001)
Chou, ChengFu, Golubchik, Leana, Lui, John C.S., Chung, I-Hsin
Multimedia applications place high demands for quality-of-service (QoS), performance, and reliability on systems. These stringent requirements make design of cost-effective and scalable systems...
Design of Scalable Continuous Media Servers with Dynamic Replication (2001)
Chou, ChengFu, Golubchik, Leana, Lui, John C.S., Chung, I-Hsin
Multimedia applications place high demands for quality-of-service (QoS), performance, and reliability on systems. These stringent requirements make design of cost-effective and scalable systems...
Leana Golubchik, Richard R. Muntz, Cheng-fu Chou, Student Member, Steven Berson
AbstractÐRecent technological advances in digital signal processing, data compression techniques, and high-speed communication networks have made Video-on-Demand (VOD) servers feasible. A...
A secure and scalable wide-area upload service (2001)
William C. Cheng, Cheng-fu Chou, Leana Golubchik, Samir Khuller
Abstract In a recent paper, we introduced a framework termed Bistro to facilitate the building of scalable wide-area upload applications. An example of an important upload application is the...
Bolshoi - A Modeling Spreadsheet (Improving Usability of Complex Analytical Modeling Tools) (2000)
Cheng, William C., Golubchik, Leana
Spreadsheet programs are very popular financial modeling tools because they allow users to juggle numbers and formulas with a powerful yet intuitive and easy to understand user interface; also, they...
Bolshoi - A Modeling Spreadsheet (Improving Usability of Complex Analytical Modeling Tools) (2000)
Cheng, William C., Golubchik, Leana
Spreadsheet programs are very popular financial modeling tools because they allow users to juggle numbers and formulas with a powerful yet intuitive and easy to understand user interface; also, they...
Multimedia applications place high demands for QoS, performance, and reliability on storage servers and communication networks. These, often stringent, requirements make design of costeffective and...
In this paper, we consider a K-server multi-class threshold-based queueing system with hysteresis in which the number of servers, employed for servicing customers of each class i, is governed by a...
Approximation Algorithms for Data Placement on Parallel Disks (2000)
Leana Golubchik, Sanjeev Khanna, Samir Khuller, An Zhu
Abstract. We study an optimization problem that arises in the context of data placement in a multimedia storage system. We are given a collection of M multimedia objects (data objects) that need to...
ViPEr-HiSS: A Case for Storage Design Tools (1999)
Golubchik, Leana, Dunnick, Joseph, Hollingsworth, Jeffrey K.
The viability of large-scale multimedia applications, depends on the performance of storage systems. Providing cost-effective access to vast amounts of video, image, audio, and text data, requires...
ViPEr-HiSS: A Case for Storage Design Tools (1999)
Golubchik, Leana, Dunnick, Joseph, Hollingsworth, Jeffrey K.
The viability of large-scale multimedia applications, depends on the performance of storage systems. Providing cost-effective access to vast amounts of video, image, audio, and text data, requires...
Chou, ChengFu, Golubchik, Leana, Lui, John C.S.
Multimedia applications place high demands for QoS, performance, and reliability on storage servers and communication networks. These, often stringent, requirements make design of cost-effective and...
Chou, ChengFu, Golubchik, Leana, Lui, John C.S.
Multimedia applications place high demands for QoS, performance, and reliability on storage servers and communication networks. These, often stringent, requirements make design of cost-effective and...
Techniques for automating distributed real-time applications design (1999)
Dong-in Kang, Richard Gerber, Leana Golubchik, Jeffrey K. Hollingsworth
We present a performance-based methodology for designing a high-bandwidth radar application on commodity platforms. Unlike many real-time systems, our approach works for commodity processors running...
Techniques for automating distributed real-time applications design (1999)
Dong-in Kang, Richard Gerber, Leana Golubchik, Jeffrey K. Hollingsworth
We present a performance-based methodology for designing a high-bandwidth radar application on commodity platforms. Unlike many real-time systems, our approach works for commodity processors running...
Techniques for Automating Distributed Real-Time Applications Design (1999)
Dong-in Kang, Richard Gerber, Leana Golubchik, Jeffrey K. Hollingsworth
We present a performance-based methodology for designing a high-bandwidth radar application on commodity platforms. Unlike many real-time systems, our approach works for commodity processors running...
Cheng-fu Chou, Leana Golubchik
Multimedia applications place high demands for QoS, performance, and reliability on storage servers and communication networks. These, often stringent, requirements make design of cost-e ective and...
Automated Techniques for Designing Embedded Signal Processors on Distributed Platforms (1998)
Kang, Dong-In, Gerber, Richard, Golubchik, Leana
In this paper, we present a performance-based technique to help synthesize high-bandwidth radar processors on commodity platforms. This problem is innately complex, for a number of reasons....
A Performance Study of Dynamic Replication Techniques in Continuous Media Servers (1998)
Chou, ChengFu, Golubchik, Leana, Lui, John C.S.
Multimedia applications are emerging in education, information dissemination, entertainment, as well as many other applications. The stringent requirements of such applications make design of...
Automated Techniques for Designing Embedded Signal Processors on Distributed Platforms (1998)
Kang, Dong-In, Gerber, Richard, Golubchik, Leana
In this paper, we present a performance-based technique to help synthesize high-bandwidth radar processors on commodity platforms. This problem is innately complex, for a number of reasons....
A Performance Study of Dynamic Replication Techniques in Continuous Media Servers (1998)
Chou, ChengFu, Golubchik, Leana, Lui, John C.S.
Multimedia applications are emerging in education, information dissemination, entertainment, as well as many other applications. The stringent requirements of such applications make design of...
Evaluation of Tradeoffs in Resource Management Techniques for Multimedia Storage Servers (1998)
Golubchik, Leana, Liu, John C. S., Gail, H. Richard
Many modern applications can benefit from sharing of resources such as network bandwidth, disk bandwidth, and so on. In addition, many information systems store (or would like to store) data that can...
Evaluation of Tradeoffs in Resource Management Techniques for Multimedia Storage Servers (1998)
Golubchik, Leana, Liu, John C. S., Gail, H. Richard
Many modern applications can benefit from sharing of resources such as network bandwidth, disk bandwidth, and so on. In addition, many information systems store (or would like to store) data that can...
Automated techniques for designing embedded signal processors on distributed platforms (1998)
Dong-in Kang, Richard Gerber, Leana Golubchik
In this paper, we present a performance-based technique to help synthesize high-bandwidth radar processors on commodity platforms. This problem is innately complex, for a number of reasons....
A performance study of dynamic replication techniques in continuous media servers (1998)
Multimedia applications are emerging in education, information dissemination, entertainment, as well as many other applications. The stringent requirements of such applications make design of...
Sync Classes: A Framework for Optimal Scheduling of Requests in Multimedia Storage Servers (1998)
Leana Golubchik, V. S. Subrahmanian, Sherry Marcus, Joachim Biskup
There have been many proposals on how media-on-demand servers can effectively allow clients to share resources. In this paper, given a set of clients, we show how these clients may be partitioned...
A Study on the Use of Tertiary Storage in Multimedia Systems (1998)
Leana Golubchik, Raj Kumar Rajendran
In spite of the dramatic improvements in the cost of secondary storage, magnetic disks alone are inadequate for meeting the storage and delivery needs of many modern applications. Novel designs of...
Merging Video Streams in a Multimedia Storage Server: Complexity and Heuristics (1998)
Due to recent advances in network, storage and data compression technologies, video-on-demand (VOD) service has become economically feasible. It is a challenging task to design a video storage server...
Automated Techniques for Designing Embedded Signal Processors on Distributed Platforms (1998)
Richard Gerber, Leana Golubchik
In this paper, we present a performance-based technique to help synthesize high-bandwidth radar processors on commodity platforms. This problem is innately complex, for a number of reasons....
Threshold-Based Dynamic Replication in Large-Scale Video-on-Demand Systems (1998)
Leana Golubchik, Benjamin C. Pierce, David N. Turner
Recent advances in high speed networking technologies and video compression techniques have made Video-on-Demand (VOD) services feasible. A large-scale VOD system imposes a large demand on I/O...
Bounding of Performance Measures for a Threshold-based Queueing System with Hysteresis (1997)
In this paper, we consider a K-server threshold-based queueing system with hysteresis in which the number of servers, employed for servicing customers, is governed by a forward threshold vector F=...
To design a cost effective VOD server, it is important to carefully manage the system resources so that the number of concurrent viewers can be maximized. Previous research results use data sharing...
Bounding of Performance Measures for a Threshold-based Queueing System with Hysteresis (1997)
Leana Golubchik, Ieee Computer Society
AbstractÐIn this paper, we consider a K-server threshold-based queuing system with hysteresis in which the number of active servers is governed by a forward threshold vector F ˆ…F1;F2;...;FK 1...
Stochastic Complement Analysis of Multi-Server Threshold Queues with Hysteresis (1996)
We consider a K-server threshold-based queueing system with hysteresis, for which a set of forward thresholds (F 1 ; F 2 ; : : : ; FK \Gamma1 ) and a set of reverse thresholds (R 1 ; R 2 ; : : : ; RK...
Adaptive Piggybacking: A Novel Technique for Data Sharing in Video-On-Demand Storage Servers (1996)
Leana Golubchik, Richard R. Muntz
Recent technological advances have made multimedia on-demand services, such as home entertainment and home-shopping, important to the consumer market. One of the most challenging aspects of this type...
Analysis of Striping Techniques in Robotic Storage Libraries (1995)
Leana Golubchik, Richard R. Muntz, Richard W. Watson
In recent years advances in computational speed have been the main focus of research and development in high performance computing. In comparison, the improvement in I/O performance has been modest....
Fault Tolerant Design of Multimedia Servers (1995)
Steven Berson, Leana Golubchik, Richard R. Muntz
Recent technological advances have made multimedia on-demand servers feasible. Two challenging tasks in such systems are: a) satisfying the real-time requirement for continuous delivery of objects at...
Reducing i/o demand in video-on-demand storage servers (1995)
Leana Golubchik, Richard Muntz
Recent technological advances have made multimedia on-demand services, such as movieson-demand and home-shopping, important to the consumer market. One of the most challenging aspect of this type of...
Reducing I/O Demand in Video-On-Demand Storage Servers (1995)
Leana Golubchik, Richard Muntz
Recent technological advances have made multimedia on-demand services, such as home entertainment and home-shopping, important to the consumer market. One of the most challenging aspects of this type...
Fault Tolerant Design of Multimedia Servers (1995)
Steven Berson, Leana Golubchik, Richard R. Muntz
Recent technological advances have made multimedia ondemand servers feasible. Two challenging tasks in such systems are: a) satisfying the real-time requirement for continuous delivery of objects at...
Analysis of Striping Techniques in Robotic Storage Libraries (1995)
Leana Golubchik, Richard R. Muntz, Richard W. Watson
In recent years advances in computational speed have been the main focus of research and development in high performance computing. In comparison, the improvement in I/O performance has been modest....
Fault Tolerant Design of Multimedia Servers (1995)
Steven Berson, Leana Golubchik, Richard R. Muntz
Recent technological advances have made multimedia on-demand servers feasible. Two challenging tasks in such systems are: a) satisfying the real-time requirement for continuous delivery of objects at...
Design of a Scalable Multimedia Storage Manager (1994)
Steven Berson, Ali Dashti, Martha Escobar-Molano, Shahram Ghandeharizadeh, Shahram Gh, Leana Golubchik, ...
During the past decade, the information technology has evolved to store and retrieve continuous media data types, e.g., audio and video objects. Unlike the traditional data types (e.g., text), this...
Design of a Scalable Multimedia Storage Manager (1994)
Steven Berson, Ali Dashti, Martha Escobar-molano, Shahram Gh, Leana Golubchik, Richard Muntz, ...
During the past decade, the information technology has evolved to store and retrieve continuous media data types, e.g., audio and video objects. Unlike the traditional data types (e.g., text), this...
Fault Tolerance Issues in Data Declustering for Parallel Database Systems (1994)
Leana Golubchik, Richard R. Muntz
Maintaining the integrity of data and its accessibility are crucial tasks in database systems. Although each component in the storage hierarchy can be fairly reliable, a large collection of such...
Designing Efficient Fault Tolerant VOD Storage Servers: Techniques, Analysis, and Comparison (1989)
Leana Golubchik, Maria Papadopouli
Recent technological advances in digital signal processing, data compression techniques, and high speed computer networking have made Video-on-Demand (VOD) servers feasible. A challenging task in...
catalog usage and the genome hypothesis. Acids Res 8 (1980)
William C. Cheng, Cheng-fu Chou, Leana Golubchik
A Digital Signature is an important type of authentication in a public-key (or asymmetric) cryptographic system, and it is in wide use. The performance of an Internet server computing digital...