SCAN: Learning Hierarchical Compositional Visual Concepts

The seemingly infinite diversity of the natural world arises from a relatively small set of coherent rules, such as the laws of physics or chemistry. We conjecture that these rules give rise to regularities that can be discovered through primarily unsupervised experiences and represented as abstract concepts. If such representations are compositional and hierarchical, they can be recombined into an exponentially large set of new concepts. This paper describes SCAN (Symbol-Concept Association Network), a new framework for learning such abstractions in the visual domain. SCAN learns concepts through fast symbol association, grounding them in disentangled visual primitives that are discovered in an unsupervised manner. Unlike state of the art multimodal generative model baselines, our approach requires very few pairings between symbols and images and makes no assumptions about the form of symbol representations. Once trained, SCAN is capable of multimodal bi-directional inference, generating a diverse set of image samples from symbolic descriptions and vice versa. It also allows for traversal and manipulation of the implicit hierarchy of visual concepts through symbolic instructions and learnt logical recombination operations. Such manipulations enable SCAN to break away from its training data distribution and imagine novel visual concepts through symbolically instructed recombination of previously learnt concepts

Active Learning Approach for Students in Precalculus and Calculus Classes

We would like to present practices of using Web-based audience response systems to enhance interactive learning activities in Mathematics classroom. We mostly concentrated our attention on PreCalculus classes which have had traditionally low success rates and retention. During the last couple of years, we developed a set of course specific materials in the form of lecture notes and in-class and out-of-class assignments. Each major assignment is accompanied by clear and coherent guidelines explaining what kind of skills will be attained by practicing this assignment, how it can be done, what amount of time can it reasonably take, when is it due, and where to get help. Speaking of technology, in our practice we use online homework systems (WebAssign or Willey Plus), video materials, and Web-based audience response systems (Poll Everywhere). Enhancing a class with technology helps students to be better engaged with the concepts covered, better communicate with the instructor and their peers, check their understanding of the concepts and quickly get a feedback.https://digitalscholarship.unlv.edu/btp_expo/1115/thumbnail.jp

The Complementary Brain: From Brain Dynamics To Conscious Experiences

How do our brains so effectively achieve adaptive behavior in a changing world? Evidence is reviewed that brains are organized into parallel processing streams with complementary properties. Hierarchical interactions within each stream and parallel interactions between streams create coherent behavioral representations that overcome the complementary deficiencies of each stream and support unitary conscious experiences. This perspective suggests how brain design reflects the organization of the physical world with which brains interact, and suggests an alternative to the computer metaphor suggesting that brains are organized into independent modules. Examples from perception, learning, cognition, and action are described, and theoretical concepts and mechanisms by which complementarity is accomplished are summarized.Defense Advanced Research Projects and the Office of Naval Research (N00014-95-1-0409); National Science Foundation (ITI-97-20333); Office of Naval Research (N00014-95-1-0657

Transkulturelle Kompetenz als Prozess und Ziel des Spracherwerbs

The paper sketches out the framework of a transcultural model of language learning and teaching. In doing so it illuminates linguistic, psycholinguistic, hermeneutical und didactic aspects of the complex field of language learning rather than limiting itself to discussing mere methodological phenomena. The paper argues that the language learning and teaching profession can only advance by taking transcultural concepts of language acquisition, of linguistic systems, of language processing and of media use into account and by integrating them into a coherent system of language didactics

Transkulturelle Kompetenz als Prozess und Ziel des Spracherwerbs

The paper sketches out the framework of a transcultural model of language learning and teaching. In doing so it illuminates linguistic, psycholinguistic, hermeneutical und didactic aspects of the complex field of language learning rather than limiting itself to discussing mere methodological phenomena. The paper argues that the language learning and teaching profession can only advance by taking transcultural concepts of language acquisition, of linguistic systems, of language processing and of media use into account and by integrating them into a coherent system of language didactics

What do we teach when we teach the Learning Sciences? A document analysis of 75 graduate programs

The learning sciences, as an academic community investigating human learning, emerged more than 30 years ago. Since then, graduate learning sciences programs have been established worldwide. Little is currently known, however, about their disciplinary backgrounds and the topics and research methods they address. In this document analysis of the websites of 75 international graduate learning sciences programs, we examine central concepts and research methods across institutions, compare the programs, and assess the homogeneity of different subgroups. Results reveal that the concepts addressed most frequently were real-world learning in formal and informal contexts, designing learning environments, cognition and metacognition, and using technology to support learning. Among research methods, design-based research (DBR), discourse and dialog analyses, and basic statistics stand out. Results show substantial differences between programs, yet programs focusing on DBR show the greatest similarity regarding the other concepts and methods they teach. Interpreting the similarity of the graduate programs using a community of practice perspective, there is a set of relatively coherent programs at the core of the learning sciences, pointing to the emergence of a discipline, and a variety of multidisciplinary and more heterogeneous programs “orbiting” the core in the periphery, shaping and innovating the field

Traumatic renewal of values and value criteria in crisis management

This work tries to be an empirical sample in the study of learning in public policies, that is, how learning is linked to policy change. Particularly, we have studied political-administrative elites’ learning process on crisis provoked by oil spill off the coast of Spain. After expounded our premises about policy learning and the working hypothesis that have guided our work, we explain the methodology we have employed: the Nominal Group Technique, its advantages in this kind of research and how we used it. Finally, we display the reflection generated from the empirical work to better understand policy learning process. In this sense, political factors have been revealed as absolutely essential in order to explain what political-administrative elites learn and whatever they decide to implement. Aspects that make crises different from each other (these being technical aspects) show up as less important than political ones. Political aspects make crisis similar, because of political reasons behind the decision, communication, and attention strategies. Two concepts have appeared as the connection of crisis and elites’ learning: sensitization and political profitability. The former means the process of becoming fully aware of the problem, being concerned about it, and predisposed towards a faster and more coherent action. At the same time, it is difficult to imagine a government undertaking polices that involve political costs, or anything proved to be unprofitable. This is especially true of learning and implementation of whatever has been learnt from crisis that happened in distant points of time