• Publications
  • Influence
E-Cube: multi-dimensional event sequence analysis using hierarchical pattern query sharing
TLDR
We propose a novel E-Cube model which combines CEP and OLAP techniques for efficient multi-dimensional event pattern analysis at different abstraction levels. Expand
  • 67
  • 6
High-performance nested CEP query processing over event streams
TLDR
In this paper, we introduce NEEL, a CEP query language for expressing nested CEP pattern queries composed of sequence, negation, AND and OR operators. Expand
  • 50
  • 5
  • PDF
A platform for situational awareness in operational BI
TLDR
SIE-OBI is a platform being developed at HP Labs that responds to this need. Expand
  • 28
  • 5
CHAOS: A Data Stream Analysis Architecture for Enterprise Applications
TLDR
In this paper, we describe the design of our architecture for Continuous, Heterogeneous Analysis Over Streams, aka CHAOS that combines stream processing, approximation techniques, mining, complex event processing and visualization. Expand
  • 36
  • 3
BI batch manager: a system for managing batch workloads on enterprise data-warehouses
TLDR
We present BI Batch Manager, a workload management system to run batches of queries 'optimally' on an Enterprise Data Warehouse (EDW). Expand
  • 25
  • 3
  • PDF
PQR: Predicting Query Execution Times for Autonomous Workload Management
TLDR
We use a machine learning approach that takes the query plan, combines it with the observed load vector of the system and uses the new vector to predict the execution time of the query. Expand
  • 91
  • 2
Of Cubes, DAGs and Hierarchical Correlations: A Novel Conceptual Model for Analyzing Social Media Data
TLDR
We introduce a conceptual modeling framework that extends traditional multidimensional models and OLAP operators to address the new set of requirements for data extracted from social media. Expand
  • 9
  • 2
NEEL: The Nested Complex Event Language for Real-Time Event Analytics
TLDR
We introduce our nested CEP query language NEEL for expressing nested queries composed of sequence, negation, AND and OR operators. Expand
  • 14
  • 2
  • PDF
SIE-OBI: a streaming information extraction platform for operational business intelligence
TLDR
We describe SIE-OBI, a system that we are developing to enable the development and execution of such applications, and a platform for optimizing and executing the applications. Expand
  • 13
  • 1
Realtime healthcare services via nested complex event processing technology
TLDR
We propose to showcase a platform for specifying complex nested queries, and selecting one of the alternative optimized techniques including sub-expression sharing and intermediate result caching to process them. Expand
  • 8
  • 1
  • PDF
...
1
2
3
4
...