Expert Systems
Artificial Intelligence: Research Impact on Key Industries; the Upper-Rhine Artificial Intelligence Symposium (UR-AI 2020)
The TriRhenaTech alliance presents a collection of accepted papers of the cancelled tri-national 'Upper-Rhine Artificial Inteeligence Symposium' planned for 13th May 2020 in Karlsruhe. The TriRhenaTech alliance is a network of universities in the Upper-Rhine Trinational Metropolitan Region comprising of the German universities of applied sciences in Furtwangen, Kaiserslautern, Karlsruhe, and Offenburg, the Baden-Wuerttemberg Cooperative State University Loerrach, the French university network Alsace Tech (comprised of 14 'grandes \'ecoles' in the fields of engineering, architecture and management) and the University of Applied Sciences and Arts Northwestern Switzerland. The alliance's common goal is to reinforce the transfer of knowledge, research, and technology, as well as the cross-border mobility of students.
Leveraging Declarative Knowledge in Text and First-Order Logic for Fine-Grained Propaganda Detection
Wang, Ruize, Tang, Duyu, Duan, Nan, Zhong, Wanjun, Wei, Zhongyu, Huang, Xuanjing, Jiang, Daxin, Zhou, Ming
We study the detection of propagandistic text fragments in news articles. Instead of merely learning from input-output datapoints in training data, we introduce an approach to inject declarative knowledge of fine-grained propaganda techniques. Specifically, we leverage the declarative knowledge expressed in both first-order logic and natural language. The former refers to the logical consistency between coarse- and fine-grained predictions, which is used to regularize the training process with propositional Boolean expressions. The latter refers to the literal definition of each propaganda technique, which is utilized to get class representations for regularizing the model parameters. We conduct experiments on Propaganda Techniques Corpus, a large manually annotated dataset for fine-grained propaganda detection. Experiments show that our method achieves superior performance, demonstrating that leveraging declarative knowledge can help the model to make more accurate predictions.
MCMH: Learning Multi-Chain Multi-Hop Rules for Knowledge Graph Reasoning
Zhang, Lu, Yu, Mo, Gao, Tian, Yu, Yue
Multi-hop reasoning approaches over knowledge graphs infer a missing relationship between entities with a multi-hop rule, which corresponds to a chain of relationships. We extend existing works to consider a generalized form of multi-hop rules, where each rule is a set of relation chains. To learn such generalized rules efficiently, we propose a two-step approach that first selects a small set of relation chains as a rule and then evaluates the confidence of the target relationship by jointly scoring the selected chains. A game-theoretical framework is proposed to this end to simultaneously optimize the rule selection and prediction steps. Empirical results show that our multi-chain multi-hop (MCMH) rules result in superior results compared to the standard single-chain approaches, justifying both our formulation of generalized rules and the effectiveness of the proposed learning framework.
How to use AI to improve outcomes and efficiency in primary healthcare
Artificial Intelligence (AI) will fully transform health care. It can improve outcomes and patient experience while democratizing access to healthcare services. AI can help improve the experience of healthcare practitioners, enabling them to reduce burnout and spend more time in serious direct patient care. AI can help healthcare systems manage population health proactively through the allocation of resources with a view to maximum impact. Using a mobile or web based Intelligent Digital Medical Assistant through which to provide remote video based medical consultations and almost instantaneously extracting knowledge from the video in order to support or suggest a diagnosis, while at the same time using the same system to organize and follow up on these interactions, is the way to use AI technology to improve outcomes and efficiency in primary healthcare, particularly in the midst of a global pandemic! If you want to learn more and be at the forefront of health care technology, join Footchat the definitive free online healthcare community.
Children who write by hand learn and remember more than those that use computers, experts say
Approximately 45 US states do not require schools to teach students handwriting, but a new study suggests the skill is vital to a child's development. Following an examination of brain activity, researchers found using a pen and paper helps children learn more and remember better than if they record information on a computer. The data showed an increase of activity in the sensorimotor parts of the brain, which is involved with processing, attention and language. Scientist also found that the act is beneficial for adults, suggesting they will remember contents better after writing them down. The research was conducted by a team at Norwegian University of Science and Technology (NTNU), who now suggest national guidelines need to ensure children are receiving some handwriting lessons.
When will the mist clear? On the Interpretability of Machine Learning for Medical Applications: a survey
Banegas-Luna, Antonio-Jesรบs, Peรฑa-Garcรญa, Jorge, Iftene, Adrian, Guadagni, Fiorella, Ferroni, Patrizia, Scarpato, Noemi, Zanzotto, Fabio Massimo, Bueno-Crespo, Andrรฉs, Pรฉrez-Sรกnchez, Horacio
Artificial Intelligence is providing astonishing results, with medicine being one of its favourite playgrounds. In a few decades, computers may be capable of formulating diagnoses and choosing the correct treatment, while robots may perform surgical operations, and conversational agents could interact with patients as virtual coaches. Machine Learning and, in particular, Deep Neural Networks are behind this revolution. In this scenario, important decisions will be controlled by standalone machines that have learned predictive models from provided data. Among the most challenging targets of interest in medicine are cancer diagnosis and therapies but, to start this revolution, software tools need to be adapted to cover the new requirements. In this sense, learning tools are becoming a commodity in Python and Matlab libraries, just to name two, but to exploit all their possibilities, it is essential to fully understand how models are interpreted and which models are more interpretable than others. In this survey, we analyse current machine learning models, frameworks, databases and other related tools as applied to medicine - specifically, to cancer research - and we discuss their interpretability, performance and the necessary input data. From the evidence available, ANN, LR and SVM have been observed to be the preferred models. Besides, CNNs, supported by the rapid development of GPUs and tensor-oriented programming libraries, are gaining in importance. However, the interpretability of results by doctors is rarely considered which is a factor that needs to be improved. We therefore consider this study to be a timely contribution to the issue.
Improving Generalization of Deep Fault Detection Models in the Presence of Mislabeled Data
Rombach, Katharina, Michau, Gabriel, Fink, Olga
Mislabeled samples are ubiquitous in real-world datasets as rule-based or expert labeling is usually based on incorrect assumptions or subject to biased opinions. Neural networks can "memorize" these mislabeled samples and, as a result, exhibit poor generalization. This poses a critical issue in fault detection applications, where not only the training but also the validation datasets are prone to contain mislabeled samples. In this work, we propose a novel two-step framework for robust training with label noise. In the first step, we identify outliers (including the mislabeled samples) based on the update in the hypothesis space. In the second step, we propose different approaches to modifying the training data based on the identified outliers and a data augmentation technique. Contrary to previous approaches, we aim at finding a robust solution that is suitable for real-world applications, such as fault detection, where no clean, "noise-free" validation dataset is available. Under an approximate assumption about the upper limit of the label noise, we significantly improve the generalization ability of the model trained under massive label noise.
Learning Knowledge Bases with Parameters for Task-Oriented Dialogue Systems
Madotto, Andrea, Cahyawijaya, Samuel, Winata, Genta Indra, Xu, Yan, Liu, Zihan, Lin, Zhaojiang, Fung, Pascale
Task-oriented dialogue systems are either modularized with separate dialogue state tracking (DST) and management steps or end-to-end trainable. In either case, the knowledge base (KB) plays an essential role in fulfilling user requests. Modularized systems rely on DST to interact with the KB, which is expensive in terms of annotation and inference time. End-to-end systems use the KB directly as input, but they cannot scale when the KB is larger than a few hundred entries. In this paper, we propose a method to embed the KB, of any size, directly into the model parameters. The resulting model does not require any DST or template responses, nor the KB as input, and it can dynamically update its KB via fine-tuning. We evaluate our solution in five task-oriented dialogue datasets with small, medium, and large KB size. Our experiments show that end-to-end models can effectively embed knowledge bases in their parameters and achieve competitive performance in all evaluated datasets.
What We Should Learn from the Tension Between Mind and Machine
Did medical knowledge engineering/search/expert systems. Every human bliss and kindness, every suspicion, cruelty, and torment ultimately comes from the whirring 3-pound "enchanted loom" that is our brain and its other side, the cloud of knowing that is our mind. It's an odd coincidence that serious study of the mind and the brain bloomed in the late 20th century when we also started to make machines that had some mind-like qualities. Now, with information technology we have applied an untested amplifier to our minds, and cranked it up to eleven, running it around the clock, year after year. Because we have become a culture of crisis, we are good at asking, what has gone wrong? But is the conjunction of natural and artificial mind only ill-favored, or might we not learn from both by comparison?
Registration Open for FREE Webinar: 'Detecting Fraud with Hybrid AI' (October 28, 2020)
In collaboration with BigML partner, INFORM Gmbh, we're pleased to bring the BigML community a new educational webinar: Machine Learning Fights Financial Crime. This FREE virtual event will take place on October 28, 2020, at 8:00 AM PDT / 9:00 AM PDT and it's the ideal learning opportunity for Financial institutions, banking sector professionals, credit professionals, risk advisers, crime fighters, fraud professionals, and anyone interested in finding out about the latest financial crime-fighting and risk analysis strategies and trends. Financial institutions must innovate to stop the onslaught of fraudulent transactions. The utilization of Machine Learning as a tool for fraud detection is trending. Combining Machine Learning with existing intelligent and dynamic rule sets produces a sustainable strategy to address this challenge.