289 research outputs found

    Evaluation of data usability generated by wearables & IoT-enabled home use medical devices via Telehealth to identify if blockchain can solve potential challenges

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    The adoption of blockchain shows a variety of benefits owing to an incorruptible digital ledger and a decentralized database. This has eliminated the need for a gatekeeper to oversee all associated transactions. Blockchain, the underlying technology behind bitcoin and other crypto-currencies, has found use in many industries besides finance, such as healthcare, where it has shown promise in several use-cases. Patient data is collected using a plethora of devices, such as wearables or IoT-enabled home use medical devices. These types of devices are utilized in telehealth and provide the ability to remotely monitor the patient’s health condition. This requires the patient to perform measurements themselves in their home (such as vital signs), which puts the burden of reliable and precised patient exam data in the hands of the patients. The purpose of this quantitative study is to increase the understanding of what factors affect data usability generated by these devices, with the findings that the surveyed medical professionals are concerned that patients may have issues setting up the device in the home, operating the device properly (including not positioning themselves or the device correctly), the provider not knowing where the patient resides during measurement, or the patient’s inability to determine when a device has malfunctioned. Upon analyzing blockchain’s capabilities, it was discovered that blockchain cannot fix all identified hurdles, however, it can be used (in conjunction with smart contracts) to limit invalid data transmission to the provider. It was discussed that blockchain may also be utilized to overcome interoperability issues caused by the inability of most Electronic Medical Records (EMRs – sometimes also referred to as Electronic Health Record – EHR) to communicate and provide the patient governance of his/her own medical record. While there are interoperability issues amongst blockchain themselves, Estonia, for instance, has harnessed the power of a single blockchain for digital security and has overcome this interoperability issue

    The Validation of Speech Corpora

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    1.2 Intended audience........................

    PatchIndex: exploiting approximate constraints in distributed databases

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    Cloud data warehouse systems lower the barrier to access data analytics. These applications often lack a database administrator and integrate data from various sources, potentially leading to data not satisfying strict constraints. Automatic schema optimization in self-managing databases is difficult in these environments without prior data cleaning steps. In this paper, we focus on constraint discovery as a subtask of schema optimization. Perfect constraints might not exist in these unclean datasets due to a small set of values violating the constraints. Therefore, we introduce the concept of a generic PatchIndex structure, which handles exceptions to given constraints and enables database systems to define these approximate constraints. We apply the concept to the environment of distributed databases, providing parallel index creation approaches and optimization techniques for parallel queries using PatchIndexes. Furthermore, we describe heuristics for automatic discovery of PatchIndex candidate columns and prove the performance benefit of using PatchIndexes in our evaluation
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