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Privatdozent Dr. rer. nat. Achim Rettinger
Achim Rettinger is a KIT Junior Research Group Leader at AIFB where he is heading the Adaptive Data Analytics team.
Information retrieval and machine learning approaches are running in the background of most of the applications we use in our daily digital life. The assistance they are providing is manifold, but relies only on a set of core information processing tasks, the most prominent ones being retrieval, classification, clustering and prediction of information.
How content with heterogeneous representations, like text documents in different languages or text and images found online and on social media, can be processed jointly is the focus of this research group.
While the human brain has the ability to integrate disparate multi-sensory information into a coherent percept that benefits from all senses (hearing, seeing,…) current information processing technologies lack this ability.
By combining machine learning with natural language processing and semantic technologies we fuse complementing information from all sources such as text, images and knowledge graphs. This enables cross-modal data analytics and provides a more holistic view than each modality separately.
Mission: Learning of knowledge representations and mapping functions that fuse information from multiple heterogeneous data sources in order to investigating how heterogeneous information interdepends.
- Text, Social Media Language
- Images, Videos, Speech
- Knowledge Graphs, Structured information
- Latent-variable Models
- Knowledge Graph grounding and embedding
- Text linking and embedding
- Media retrieval, analysis and recommendation
- Social Aspects
- Healthcare Analytics
- Maschinelles Lernen, Text Mining, Informationsextraktion, Ontology Learning, Mensch-Maschine-Systeme, Knowledge Discovery, Data Mining