ENFORCING SEMANTICS-AWARE SECURITY IN MULTIMEDIA DOCUMENTS Committee: (2008)
Naren B. Kodali, Edgar H. Sibley, Daniel Barbara, Venkata R. Mulpuri, Stephen G. Nash, Associate Dean, ...
ii Dedication I dedicate this dissertation to my dearest parents Dr.Baburao and SuryaPrabha Kodali, my role-model Padmashree Dr.Nandamuri Taraka Rama Rao, and my greatest friend and comrade Vishnu...
To be Held in Conjunction with the Third SIAM International Conference on Data Mining (2003)
The tragedy of September 11 had immeasurable and permanent effects on the United States and the rest of the world and brought issues of security and defense to the forefront. To help prevent such...
COOLCAT: an entropy-based algorithm for categorical clustering (2002)
Daniel Barbara, Julia Couto, Yi Li
Clustering of categorical attributes is a di cult problem that has not received as much attention as its numerical counterpart. In this paper we explore the connection between clustering and entropy:...
ADAM: A testbed for exploring the use of data mining in intrusion detection (2001)
Daniel Barbara, Julia Couto, Sushil Jajodia, Ningning Wu
Intrusion detection systems have traditionally been based on the characterization of an attack and the tracking of the activity on the system to see if it matches that characterization. Recently,...
Testing E-Commerce Site Scalability With Tpc-W (2001)
Daniel A. Menasce, Daniel Barbara
This paper describes the benchmark's main features, the authors' experience in building a TPC-W compliant ecommerce site and a workload generator for TPC-W. It also presents performance...
December Vol, Christos Faloutsos, Peter J. Haas, Joseph M. Hellerstein, Yannis Ioannidis, H. V. Jagadish, ...
this paper we describe and evaluate several popular techniques for data reduction. Historically, the primary need for data reduction has been internal to a database system, in a cost-based query...
Using Approximations to Scale Exploratory Data Analysis in Datacubes (1999)
Exploratory Data Analysis is a widely used technique to determine which factors have the most in uence on data values in a multi-way table, or which cells in the table can be considered anomalous...
Using the Fractal Dimension to Cluster Datasets Paper 145 (1999)
Clustering is a widely used knowledge discovery technique. It helps uncovering structures in data that were not previously known. Clustering of large datasets has received a lot of attention in...
Quasi-Cubes: A space-efficient way to support approximate multidimensional databases (1998)
A data cube is a popular organization for summary data. A cube is simply a multidimensional structure that contains at each point an aggregate value, i.e., the result of applying an aggregate...
C.: The New Jersey Data Reduction Report (1997)
Daniel Barbara, William Dumouchel, Christos Faloutsos, Peter J. Haas, Joseph M. Hellerstein, Yannis Ioannidis, ...
There is often a need to get quick approximate answers from large databases. This leads to a need for data reduction. There are many di erent approaches to this problem, some of them not...
INCAS: A Computation Model for Dynamic Workflows in Autonomous Distributed Environments (1994)
Daniel Barbara, Sharad Mehrotra, Marek Rusinkiewicz
A workflow is a long-duration multi-step activity. The task of the workflow manager is to automate the execution and the control of the workflow activities. In this paper we are interested in...
INCAS: A Computation Model for Dynamic Workflows in Autonomous Distributed Environments (1994)
Daniel Barbara, Sharad Mehrotra, Marek Rusinkiewicz
A workflow is a long-duration multi-step activity. The task of the workflow manager is to automate the execution and the control of the workflow activities. In this paper we are interested in...
Replicated Data Management in Mobile Environments: Anything New Under the Sun? (1994)
Daniel Barbara, Hector Garcia-molina
The mobile wireless computing environment of the future will contain large numbers of low powered palmtop machines. Replication will be an essential technique in this environment, providing data...
(~)VLDB Sleepers and Workaholics: Caching Strategies in (1994)
Abstract. In the mobile wireless computing environment of the future, a large number of users, equipped with low-powered palmtop machines, will query data-bases over wireless communication channels....
Computer Science, Daniel Barbara, Frank Pittelli, Hector Garcia-molina, Hector Garcia-molina, Daniel D. Sleator, ...
s of all technical reports published by the Department of Computer Science between 1985 and 1991 are listed below. Some of these reports are available for anonymous ftp or can be purchased from the...
Data Caching Issues in an Information Retrieval System (1990)
Rafael Alonso, Daniel Barbara, Hector Garcia-molina
Currently, a variety of information retrieval systems are available to potential users. These services are provided by commercial enterprises (such as Dow Jones [6] and The Source [7]), while others...
How to assign votes in a distributed system (1985)
Hector Garcia-molina, Daniel Barbara
Abstract. In a distributed system, one strategy for achieving mutual exclusion of groups of nodes without communication is to assign to each node a number of votes. Only a group with a majority of...