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Hagen Langer

dblp:71/3094 · DBLP profile ↗
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8ranked-venue papers
2as first author
0since 2021 · last 2016
0000-0001-7817-7349ORCID · verified

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 7 · 2 first-authorSystems, architecture and hardware · 2Databases, data management, data science and information retrieval · 2

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Knowledge representation and reasoning · 100%
Computer architecture, parallel and distributed computing, and storage systems
1 paper
Cloud and datacenter computing · 100%

Topics — the 2 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Knowledge, reasoning and agents › Knowledge representation and reasoning › knowledge graph
open knowledge base
0.212016
Open robotics research using web-based knowledge services · ICRA 2016
Knowledge, reasoning and agents › Knowledge representation and reasoning › cognitive robotics
robotic knowledge representation
0.212016
Open robotics research using web-based knowledge services · ICRA 2016

Methods — techniques the papers use, named apart from their topics

semantic annotation · 0.5big data storage · 0.5
YearPublicationVenuePosition
2016 Open robotics research using web-based knowledge services
abstract
In this paper we discuss how the combination of modern technologies in “big data” storage and management, knowledge representation and processing, cloud-based computation, and web technology can help the robotics community to establish and strengthen an open research discipline. We describe how we made the demonstrator of a EU project review openly available to the research community. Specifically, we recorded episodic memories with rich semantic annotations during a pizza preparation experiment in autonomous robot manipulation. Afterwards, we released them as an open knowledge base using the cloud- and web-based robot knowledge service OPENEASE. We discuss several ways on how this open data can be used to validate our experimental reports and to tackle novel challenging research problems.
Michael Beetz, Daniel Beßler, Jan Oliver Winkler, Jan-Hendrik Worch, Ferenc Balint-Benczedi, Georg Bartels, Aude Billard, Asil Kaan Bozcuoglu, Nadia Figueroa, Andrei Haidu, Hagen Langer, Alexis Maldonado, Ana Lucia Pais, Moritz Tenorth, Thiemo Wiedemeyer
ICRA12
2015 Towards robots conducting chemical experiments
abstract
Autonomous mobile robots are employed to perform increasingly complex tasks which require appropriate task descriptions, accurate object recognition, and dexterous object manipulation. In this paper we will address three key questions: How to obtain appropriate task descriptions from natural language (NL) instructions, how to choose the control program to perform a task description, and how to recognize and manipulate the objects referred by a task description? We describe an evaluated robotic agent which takes a natural language instruction stating a step of DNA extraction procedure as a starting point. The system is able to transform the textual instruction into an abstract symbolic plan representation. It can reason about the representation and answer queries about what, how, and why it is done. The robot selects the most appropriate control programs and robustly coordinates all manipulations required by the task description. The execution is based on a perception sub-system which is able to locate and recognize the objects and instruments needed in the DNA extraction procedure.
Gheorghe Lisca, Daniel Nyga, Ferenc Balint-Benczedi, Hagen Langer, Michael Beetz
IROS4
2012 Towards Multiagent Interactive Adaption of Individual Models for Decision Support
Tobias Warden, Thomas Wagner 0003, Hagen Langer, Otthein Herzog
ICAART (1)3
2010 Towards Ontology-Based Multiagent Simulations: The Plasma Approach
abstract
In multiagent-based simulation systems the agent programming paradigm is adopted for simulation. This simulation approach offers the promise to facilitate the design and development of complex simulations, both regarding the distinct simulation actors and the simulation environment itself. We introduce the simulation middleware PlaSMA which extends the JADE agent framework with a simulation control that ensures synchronization and provides a world model based on a formal ontological description of the respective application domain. We illustrate the benefits of an ontology grounding for simulation design and discuss further gains to be expected from recent advances in ontology engineering, namely the adaption of foundational ontologies and modelling-patterns.
Tobias Warden, Robert Porzel, Jan D. Gehrke, Otthein Herzog, Hagen Langer, Rainer Malaka
ECMS5
2009 Sequential Supervised Learning for Hypernym Discovery from Wikipedia
Berenike Litz, Hagen Langer, Rainer Malaka
IC3K2
2005 Situation-aware risk management in autonomous agents
abstract
We present a novel approach to enable decision-making in a highly distributed multiagent environment where individual agents need to act in an autonomous fashion. Our architecture framework integrates risk management, knowledge management, and agent deliberation to enable sophisticated, autonomous decision-making. Instead of a centralized knowledge repository, our approach supports a highly distributed knowledge base in which each agent manages a fraction of the knowledge needed by the entire system.
Martin Lorenz, Jan D. Gehrke, Hagen Langer, Ingo J. Timm, Joachim Hammer
CIKM3
1994 Reverse Queries in DATR
Hagen Langer
COLING1
1990 Syntactic Normalization Of Spontaneous Speech
Hagen Langer
COLING1