14th international conference
Radio Foundation Models: Pre-training Transformers for 5G-based Indoor Localization
Ott, Jonathan, Pirkl, Jonas, Stahlke, Maximilian, Feigl, Tobias, Mutschler, Christopher
Artificial Intelligence (AI)-based radio fingerprinting (FP) outperforms classic localization methods in propagation environments with strong multipath effects. However, the model and data orchestration of FP are time-consuming and costly, as it requires many reference positions and extensive measurement campaigns for each environment. Instead, modern unsupervised and self-supervised learning schemes require less reference data for localization, but either their accuracy is low or they require additional sensor information, rendering them impractical. In this paper we propose a self-supervised learning framework that pre-trains a general transformer (TF) neural network on 5G channel measurements that we collect on-the-fly without expensive equipment. Our novel pretext task randomly masks and drops input information to learn to reconstruct it. So, it implicitly learns the spatiotemporal patterns and information of the propagation environment that enable FP-based localization. Most interestingly, when we optimize this pre-trained model for localization in a given environment, it achieves the accuracy of state-of-the-art methods but requires ten times less reference data and significantly reduces the time from training to operation.
- Europe > Germany > Bavaria > Middle Franconia > Nuremberg (0.14)
- North America > United States (0.04)
Creative Beam Search: LLM-as-a-Judge For Improving Response Generation
Franceschelli, Giorgio, Musolesi, Mirco
Large language models are revolutionizing several areas, including artificial creativity. However, the process of generation in machines profoundly diverges from that observed in humans. In particular, machine generation is characterized by a lack of intentionality and an underlying creative process. We propose a method called Creative Beam Search that uses Diverse Beam Search and LLM-as-a-Judge to perform response generation and response validation. The results of a qualitative experiment show how our approach can provide better output than standard sampling techniques. We also show that the response validation step is a necessary complement to the response generation step.
- Information Technology > Artificial Intelligence > Games > Go (0.40)
- Information Technology > Artificial Intelligence > Cognitive Science (0.40)
MLDM 2018 : 14th International Conference on Machine Learning and Data Mining MLDM 2018
The Aim of the Conference The aim of the conference is to bring together researchers from all over the world who deal with machine learning and data mining in order to discuss the recent status of the research and to direct further developments. Basic research papers as well as application papers are welcome. Paper submissions should be related but not limited to any of the following topics: association rules case-based reasoning and learning classification and interpretation of images, text, video conceptional learning and clustering Goodness measures and evaluaion (e.g. Long Paper The paper must be formatted in the Springer LNCS format. They should have at most 15 pages.
- Europe > Belarus (0.06)
- North America > United States > New York (0.05)
- North America > Canada (0.05)
- (14 more...)
Cerebella: Automatic Generation of Nonverbal Behavior for Virtual Humans
Lhommet, Margot (Northeastern University) | Xu, Yuyu (Northeastern University) | Marsella, Stacy (Northeastern University)
Our method automatically generates realistic nonverbal performances for virtual characters to accompany spo- ken utterances. It analyses the acoustic, syntactic, se- mantic and rhetorical properties of the utterance text and audio signal to generate nonverbal behavior such as such as head movements, eye saccades, and novel gesture animations based on co-articulation.
- North America > United States > New York > New York County > New York City (0.05)
- North America > United States > Massachusetts > Suffolk County > Boston (0.05)
- North America > United States > Illinois > Cook County > Chicago (0.05)
- Europe > Netherlands > North Holland > Amsterdam (0.05)
- Information Technology > Artificial Intelligence > Representation & Reasoning > Agents (1.00)
- Information Technology > Graphics > Animation (0.74)