Hans-Peter Kriegel is a German computer scientist

Computer scientist

A computer scientist is a scientist who has acquired knowledge of computer science, the study of the theoretical foundations of information and computation and their application in computer systems....

 and professor at the Ludwig Maximilian University of Munich and leading the Database Systems Group in the Department of Computer Science.

His most important contributions are the database index structures R*-tree, X-tree

X-tree

In computer science, an X-tree is an index tree structure based on the R-tree used for storing data in many dimensions. It differs from R-trees, R+-trees and R*-trees because it emphasizes prevention of overlap in the bounding boxes, which increasingly becomes a problem in high dimensions...

 and IQ-Tree, the cluster analysis algorithms DBSCAN

DBSCAN

DBSCAN is a data clustering algorithm proposed by Martin Ester, Hans-Peter Kriegel, Jörg Sander and Xiaowei Xu in 1996....

, OPTICS

OPTICS algorithm

OPTICS is an algorithm for finding density-based clusters in spatial data. It was presented by Mihael Ankerst, Markus M. Breunig, Hans-Peter Kriegel and Jörg Sander....

 and SUBCLU

SUBCLU

SUBCLU is an algorithm for clustering high-dimensional data by Karin Kailing, Hans-Peter Kriegel and Peer Kröger. It is a subspace clustering algorithm that builds on the density-based clustering algorithm DBSCAN...

 and the anomaly detection

Anomaly detection

Anomaly detection, also referred to as outlier detection refers to detecting patterns in a given data set that do not conform to an established normal behavior....

 method Local Outlier Factor (LOF)

Local Outlier Factor

Local outlier factor is an anomaly detection algorithm presented as "LOF: Identifying Density-based Local Outliers" by Markus M. Breunig, Hans-Peter Kriegel, Raymond T. Ng and Jörg Sander...

.

In 2009 the Association for Computing Machinery

Association for Computing Machinery

The Association for Computing Machinery is a learned society for computing. It was founded in 1947 as the world's first scientific and educational computing society. Its membership is more than 92,000 as of 2009...

 appointed Hans-Peter Kriegel a "fellow

Fellow

A fellow in the broadest sense is someone who is an equal or a comrade. The term fellow is also used to describe a person, particularly by those in the upper social classes. It is most often used in an academic context: a fellow is often part of an elite group of learned people who are awarded...

", one of its highest honors. He has been honored in particular for his contributions to "knowledge discovery and data mining

Data mining

Data mining , a relatively young and interdisciplinary field of computer science is the process of discovering new patterns from large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics and database systems...

, similarity search, spatial data management, and access methods for high-dimensional data".

He is the most cited German researcher in database

Database

A database is an organized collection of data for one or more purposes, usually in digital form. The data are typically organized to model relevant aspects of reality , in a way that supports processes requiring this information...

s and data mining

Data mining

Data mining , a relatively young and interdisciplinary field of computer science is the process of discovering new patterns from large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics and database systems...

.

His current research is focused around correlation clustering

Correlation clustering

In machine learning, correlation clustering or cluster editing operates in a scenario where the relationship between the objects are known instead of the actual representation of the objects...

, high-dimensional data indexing and analysis, spatial data mining and spatial data management as well as multimedia

Multimedia

Multimedia is media and content that uses a combination of different content forms. The term can be used as a noun or as an adjective describing a medium as having multiple content forms. The term is used in contrast to media which use only rudimentary computer display such as text-only, or...

 databases.

His research group publishes a Java

Java (programming language)

Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...

 software framework titled Environment for DeveLoping KDD-Applications Supported by Index-Structures

Environment for DeveLoping KDD-Applications Supported by Index-Structures

ELKI is a knowledge discovery in databases software framework developed for use in research and teaching by the database systems research unit of Professor Hans-Peter Kriegel at the Ludwig Maximilian University of Munich, Germany...

 (ELKI) that is designed for the parallel research of index structures, data mining algorithms and their interaction, such as optimized data mining algorithms based on databases indexes.

External links

• Database Systems Group of Hans-Peter Kriegel
• Publications in the Digital Bibliography & Library Project
  Digital Bibliography & Library Project
  DBLP is a computer science bibliography website hosted at Universität Trier, in Germany. It was originally a database and logic programming bibliography site, and has existed at least since the 1980s. DBLP listed more than 1.3 million articles on computer science in January 2010...