8,008 research outputs found

    Medical Image Data and Datasets in the Era of Machine Learning-Whitepaper from the 2016 C-MIMI Meeting Dataset Session.

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    At the first annual Conference on Machine Intelligence in Medical Imaging (C-MIMI), held in September 2016, a conference session on medical image data and datasets for machine learning identified multiple issues. The common theme from attendees was that everyone participating in medical image evaluation with machine learning is data starved. There is an urgent need to find better ways to collect, annotate, and reuse medical imaging data. Unique domain issues with medical image datasets require further study, development, and dissemination of best practices and standards, and a coordinated effort among medical imaging domain experts, medical imaging informaticists, government and industry data scientists, and interested commercial, academic, and government entities. High-level attributes of reusable medical image datasets suitable to train, test, validate, verify, and regulate ML products should be better described. NIH and other government agencies should promote and, where applicable, enforce, access to medical image datasets. We should improve communication among medical imaging domain experts, medical imaging informaticists, academic clinical and basic science researchers, government and industry data scientists, and interested commercial entities

    A Survey on Image Mining Techniques: Theory and Applications

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    Image mining is a vital technique which is used to mine knowledge straightforwardly from image. Image segmentation is the primary phase in image mining. Image mining is simply an expansion of data mining in the field of image processing. Image mining handles with the hidden knowledge extraction, image data association and additional patterns which are not clearly accumulated in the images. It is an interdisciplinary field that integrates techniques like computer vision, image processing, data mining, machine learning, data base and artificial intelligence. The most important function of the mining is to generate all significant patterns without prior information of the patterns. Rule mining has been adopting to huge image data bases. Mining has been done in accordance with the integrated collections of images and its related data. Numerous researches have been carried on this image mining. This paper presents a survey on various image mining techniques that were proposed earlier in literature. Also, this paper provides a marginal overview for future research and improvements. Keywords— Data Mining, Image Mining, Knowledge Discovery, Segmentation, Machine Learning, Artificial Intelligence, Rule Mining, Datasets

    Neurocognitive Informatics Manifesto.

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    Informatics studies all aspects of the structure of natural and artificial information systems. Theoretical and abstract approaches to information have made great advances, but human information processing is still unmatched in many areas, including information management, representation and understanding. Neurocognitive informatics is a new, emerging field that should help to improve the matching of artificial and natural systems, and inspire better computational algorithms to solve problems that are still beyond the reach of machines. In this position paper examples of neurocognitive inspirations and promising directions in this area are given

    Integrating Perceptual Signal Features within a Multi-facetted Conceptual Model for Automatic Image Retrieval

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    International audienceThe majority of the content-based image retrieval (CBIR) systems are restricted to the representation of signal aspects, e.g. color, texture... without explicitly considering the semantic content of images. According to these approaches a sun, for example, is represented by an orange or yellow circle, but not by the term "sun". The signal-oriented solutions are fully automatic, and thus easily usable on substantial amounts of data, but they do not fill the existing gap between the extracted low-level features and semantic descriptions. This obviously penalizes qualitative and quantitative performances in terms of recall and precision, and therefore users' satisfaction. Another class of methods, which were tested within the framework of the Fermi-GC project, consisted in modeling the content of images following a sharp process of human-assisted indexing. This approach, based on an elaborate model of representation (the conceptual graph formalism) provides satisfactory results during the retrieval phase but is not easily usable on large collections of images because of the necessary human intervention required for indexing. The contribution of this paper is twofold: in order to achieve more efficiency as far as user interaction is concerned, we propose to highlight a bond between these two classes of image retrieval systems and integrate signal and semantic features within a unified conceptual framework. Then, as opposed to state-of-the-art relevance feedback systems dealing with this integration, we propose a representation formalism supporting this integration which allows us to specify a rich query language combining both semantic and signal characterizations. We will validate our approach through quantitative (recall-precision curves) evaluations

    Cuban Color Classification and Identity Negotiation: Old Terms in a New World

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    This thesis analyzes how the Cuban Revolution's transnational discourse on blackness positively affected social attitudes, allowing color identity to be negotiated using color classification terms previously devalued. In the Caribbean and Latin America, most systems of social stratification based on color privilege "whiteness" both socially and culturally; therefore, individuals negotiate their identities with whiteness as the core element to be expressed. This dissertation examines how this paradigm has been overturned in Cuba so that "blackness" is now the featured aspect of identity. This is due in part to the popular response to the government's rhetoric which engages in an international political discourse of national identity designed to situate Cuba contextually in opposition to the United States in the global politics of color. This shift has occurred in a dialectic environment of continued negative essentialized images of Blacks although blackness itself is now en vogue. The dialogue that exists between state and popular forms of racial categorization serves to recontextualize the meanings of "blackness" and the values attached to it so that color classification terms which indicate blackness are assumed with facility in identity negotiation. In the past, the concepts of whitening and mestizaje (race mixture) were employed by the state with the goal of whitening the Cuban population so that Cuba would be perceived as a majority white country. Since the 1959 Revolution, however, the state has publicly claimed that Cuba is an Afro-Latin nation. This pronouncement has resulted in brown/mestizo/mulatto and not white as being the national ideal. The symbolic use of mestizaje in Cuban society and the fluidity inherent in the color classification system leaves space for manipulation from both ends of the color spectrum and permits Cubans from disparate groups to come together under a shared sense of identity. The ideology of the state and the popular perceptions of the symbolism that the mulatto represents were mediated by a color continuum, which in turn was used both by the state and the populace to construct, negotiate, maintain, and manipulate color identities. This study demonstrates that although color classification was not targeted by the government as an agent to convey blackness, it nevertheless does, and the shift in how identity is negotiated using racial categories can be viewed as the response of the populace to the state's otherwise silent dialogue on "race" and identity

    The state of the art of medical imaging technology: from creation to archive and back.

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    Medical imaging has learnt itself well into modern medicine and revolutionized medical industry in the last 30 years. Stemming from the discovery of X-ray by Nobel laureate Wilhelm Roentgen, radiology was born, leading to the creation of large quantities of digital images as opposed to film-based medium. While this rich supply of images provides immeasurable information that would otherwise not be possible to obtain, medical images pose great challenges in archiving them safe from corrupted, lost and misuse, retrievable from databases of huge sizes with varying forms of metadata, and reusable when new tools for data mining and new media for data storing become available. This paper provides a summative account on the creation of medical imaging tomography, the development of image archiving systems and the innovation from the existing acquired image data pools. The focus of this paper is on content-based image retrieval (CBIR), in particular, for 3D images, which is exemplified by our developed online e-learning system, MIRAGE, home to a repository of medical images with variety of domains and different dimensions. In terms of novelties, the facilities of CBIR for 3D images coupled with image annotation in a fully automatic fashion have been developed and implemented in the system, resonating with future versatile, flexible and sustainable medical image databases that can reap new innovations

    Towards a parallel image mining system

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    El análisis de imágenes puede revelar información útil para los usuarios El significativo aumento del uso de imágenes en diferentes campos de la ciencia, medicina, negocios, etc., requiere de mayor poder de procesamiento. Con el avance en la adquisición de dato multimedial y de técnicas de almacenamiento, la necesidad de descubrir automáticamente conocimiento de grandes colecciones de imágenes aumenta. La minería de imágenes, área de investigación relativamente nueva y prometedora, trata de facilitar este trabajo proponiendo soluciones para la extracción de patrones significativos y potencialmente útiles a partir de grandes volúmenes de datos. Comprende diferentes etapas demandantes de recursos y de tiempo computacional. El uso de computación paralela representa un buen punto de partida. El proceso de minería de imágenes parece ser algorítmicamente complejo, requiriendo niveles de poder computacional que solamente los paradigmas paralelos pueden proveer. Dado que involucra conjuntos de datos de rápido crecimiento y las imágenes representan una fuente natural de paralelismo, el paralelismo puede manejar semejante colección en forma efectiva. En este trabajo examinamos el problema de la minería de imágenes y su costo computacional, proponemos una posible solución global y local y definimos futuras extensiones para la minería de imágenes paralela.Images can reveal useful information to human users when are analyzed. The explosive growth in applying images as data in many fields of science, business, medicine, etc, demands greater processing power. With the advances in multimedia data acquisition and storage techniques, the need for automatically discovering knowledge from large image collections is becoming more and more relevant. Image mining, a relatively new and very promising field of investigation, tries to ease this problem proposing some solutions for the extraction of significant and potentially useful patterns from these tremendous data volume. This research field implies different stages, most of them demanding so many resources and computational time. The use of parallel computation is a good starting-point. Image mining process appears to be algorithmically complex requiring computing power levels that only parallel paradigms can provide in a timely way. As data sets involved are large, rapidly growing larger and images provide a natural source of parallelism, parallels computers could be organized to handle such big collection effectively. At this work we will examine the image mining problem with its computational cost, propose a possible global or local parallel solution and also identify some future research directions for image mining parallelism.V Workshop de Computación Gráfica, Imágenes Y VisualizaciónRed de Universidades con Carreras en Informática (RedUNCI

    An Overview of Inflammatory Spondylitis for Biomedical Imaging Using Deep Neural Networks

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    Ankylosing Spondylitis (AS) is an axial spine inflammatory illness and also chronic that might present with a range of clinical symptoms and indicators. The illness is most frequently characterized by increasing spinal stiffness and persistent back discomfort. The affect of the sacroiliac joints, spine, peripheral joints, entheses and digits are the main cause of the illness. AS symptoms include reduced spinal mobility, aberrant posture, hip and dactylitis, enthesitis, peripheral arthritis, and buttock pain. With their exceptional picture classification ability, the diagnosis of AS illness has been transformed by deep learning techniques in artificial intelligence (AI). Despite the excellent results, these processes are still being widely used in clinical practice at a moderate rate. Due to security and health concerns, medical imaging applications utilizing deep learning must be viewed with caution. False instances, whether good or negative, have far-reaching effects on the well-being of patients and these are to be considered. These are extracted from the fact of the state-of-the-art of deep learning (DL) algorithms lack internal workings comprehension and have complicated interconnected structure, huge millions of parameters, and also a "black box" aspect compared to conventional machine learning (ML) algorithms. XAI (Explainable AI) approaches make it easier to comprehend model predictions, which promotes system reliability, speeds up the diagnosis of the AS disease, and complies with legal requirements
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