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Language-Models-as-a-Service: Overview of a New Paradigm and its Challenges
Some of the most powerful language models currently are proprietary systems, accessible only via (typically restrictive) web or software programming interfaces. This is the LanguageModels-as-a-Service (LMaaS) paradigm. In contrast with scenarios where full model access is available, as in the case of open-source models, such closed-off language models present specific challenges for evaluating, benchmarking, and testing them. This paper has two goals: on the one hand, we delineate how the aforementioned challenges act as impediments to the accessibility, reproducibility, reliability, and trustworthiness of LMaaS. We systematically examine the issues that arise from a lack of information about language models for each of these four aspects. We conduct a detailed analysis of existing solutions, put forth a number of recommendations, and highlight directions for future advancements. On the other hand, it serves as a synthesized overview of the licences and capabilities of the most popular LMaaS.
Journal Article
Global perspectives on cancer : incidence, care, and experience
\"Two leading oncologists, along with experts spanning several medical disciplines, shed light on the global pandemic of cancer, particularly the difference in diagnosis, treatment, and care between global communities\"--Provided by publisher.
Book
Evaluating the accessibility of public health websites: An exploratory cross-country study
Public health websites are regarded as official references that citizens of any country rely on for domestic and individual health affairs. For people with disabilities, public health resources are often of greater importance; they additionally provide disability context-specific information. However, to leverage the benefits of such resources for the widest demographic groups, Web accessibility requirements should be met at an acceptable level (e.g., WCAG 2.0, Level AA). This study evaluates the accessibility of a number of public health websites from 25 countries. The choice of the selected websites is determined by the extent of the COVID-19 outbreak in the corresponding countries and their rank as of late April, 2020. Ultimately, this study aims at shedding light on the current situation of accessibility to health information and pinpointing the aspects where accessibility to information falls short in public health websites. Using different evaluation tools, the overall results show that the vast majority of public health websites, of a number of different countries, still have many critical accessibility barriers, especially with regards to the perception of information and operability of the interface items. The findings of this study suggest a need for major efforts toward ensuring accessible public health resources in most of the evaluated websites. As this pattern has repeatedly occurred in many relevant studies in different parts of the world, legislation along with educating Web developers regarding Web accessibility requirements and universal design principles become an urgent necessity.
Journal Article
Realizable accessibility: evaluating the reliability of public transit accessibility using high-resolution real-time data
The widespread availability of high spatial and temporal resolution public transit data is improving the measurement and analysis of public transit-based accessibility to crucial community resources such as jobs and health care. A common approach is leveraging transit route and schedule data published by transit agencies. However, this often results in accessibility overestimations due to endemic delays due to traffic and incidents in bus systems. Retrospective real-time accessibility measures calculated using real-time bus location data attempt to reduce overestimation by capturing the actual performance of the transit system. These measures also overestimate accessibility since they assume that riders had perfect information on systems operations as they occurred. In this paper, we introduce realizable real-time accessibility based on space–time prisms as a more conservative and realistic measure. We, moreover, define accessibility unreliability to measure overestimation of schedule-based and retrospective accessibility measures. Using high-resolution General Transit Feed Specification real-time data, we conduct a case study in the Central Ohio Transit Authority bus system in Columbus, Ohio, USA. Our results prove that realizable accessibility is the most conservative of the three accessibility measures. We also explore the spatial and temporal patterns in the unreliability of both traditional measures. These patterns are consistent with prior findings of the spatial and temporal patterns of bus delays and risk of missing transfers. Realizable accessibility is a more practical, conservative, and robust measure to guide transit planning.
Journal Article
Virtual health care in the era of COVID-19
Following China's example, on March 30, at the direction of US President Donald Trump, the Centers for Medicare & Medicaid Services (CMS), which oversees the nation's major public health programmes, issued what it termed “an unprecedented array of temporary regulatory waivers and new rules to equip the American healthcare system with maximum flexibility to respond to the 2019 Novel Coronavirus (COVID-19) pandemic”. The risk–benefit ratio for virtual health care has massively shifted and all the red tape has suddenly been cut.” In Italy, although all 20 regions had implemented national telemedicine guidelines as of 2018, hospital managers have been largely caught off guard by the explosion in digital demand, says Elena Sini, information officer for GVM Care & Research, a network of nine private hospitals in northern Italy. With mobile phone use now globally ubiquitous, technological barriers to the adoption of virtual health care are easily surmountable, even in the most resource-scarce settings, notes Alex Jadad, founder of the Centre for Global eHealth Innovation at the University of Toronto, ON, Canada, where he is the director of the Institute for Global Health Equity and Innovation.
Journal Article