医疗记录检索的多样性意识方法

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“Diversity-aware retrieval of medical records是关于利用语义基础的方法改进医疗记录检索的研究。随着电子病历(EMR)的广泛使用,医疗数据急剧增长,医疗搜索技术变得至关重要。然而,由于医疗术语的复杂性和模糊性,高质量的医疗搜索是一项挑战。该论文提出了一种新颖的基于语义的方法,通过利用模糊医疗查询中的不确定性来提高检索的多样性和准确性。” 在医疗信息检索领域,理解和处理查询的多样性是关键问题。传统的信息检索系统可能无法有效地处理医疗查询的复杂性和歧义,因为医学词汇具有高度专业性和多义性。"Diversity-aware retrieval of medical records"这一研究关注的是如何在检索结果中引入多样性,以确保用户能获取更全面、准确的信息。 首先,论文提到电子病历(EMR)系统的普及使得医疗信息交换变得普遍,大约82%的医生正在使用或计划使用EMR系统。这导致了大量医疗和临床数据的积累,为二次数据分析提供了丰富的资源。但同时,如何从这些海量数据中高效地检索相关信息成为一个亟待解决的问题。 作者提出的方法旨在通过理解查询的潜在含义来克服医疗术语的模糊性。他们采用语义分析技术,对查询进行深入解析,识别出可能的多种解释,从而增加检索结果的多样性。这种方法有助于减少由于单一关键词匹配而可能产生的信息遗漏,为用户提供更全面的视角。 此外,该研究还可能涉及到查询扩展和重写技术,通过识别相关概念和同义词来扩大搜索范围。同时,可能应用了聚类和排序算法,以确保返回的结果既多样化又相关。通过这种方式,检索系统能够更好地满足医生和其他医疗专业人员在查找患者信息时的需求。 "Diversity-aware retrieval of medical records"这一研究工作致力于提升医疗信息检索的效率和质量,通过利用查询的语义不确定性,提供更加多样化和准确的检索结果。这对于支持临床决策、促进医疗研究以及优化医疗服务具有重要意义。

Unlike the classical encryption schemes,keys are dispensable in certain PLS technigues, known as the keyless secure strat egy. Sophisticated signal processing techniques such as arti- ficial noise, beamforming,and diversitycan be developed to ensure the secrecy of the MC networks.In the Alice-Bob-Eve model, Alice is the legitimate transmitter, whose intended target is the legitimate receiver Bob,while Eve is the eavesdropper that intercepts the information from Alice to Bob.The secrecy performance is quantified via information leakagei.ethe dif ference of the mutual information between the Alice-Bob and Alice-Eve links. The upper bound of the information leakage is called secrecy capacity realized by a specific distribution of the input symbols, namely,capacity-achieving distribution.The secrecy performance of the diffusion-based MC system with concentration shift keying(CSK)is analyzed from an informa- tion-theoretical point of view,providing two paramount secrecy metrics, i.e., secrecy capacity and secure distance[13].How ever, only the estimation of lower bound secrecy capacity is derived as both links attain their channel capacity.The secrecy capacity highly depends on the system parameters such as the average signal energy,diffusion coefficientand reception duration. Moreover, the distance between the transmitter and the eavesdropper is also an important aspect of secrecy per- formance. For both amplitude and energy detection schemes secure distance is proposed as a secret metricover which the eavesdropper is incapable of signal recovery. Despite the case with CSK,the results of the secure metrics vary with the modulation type(e.g.pulse position,spacetype) and reception mechanism(e.g.passive,partially absorbingper fectly absorbing).For ease of understanding,Figure 3 depicts the modulation types and the corresponding CIRs with different reception mechanisms. Novel signa processing techniques and the biochemical channel properties can further assist the secrecy enhancement in the MC system.The molecular beam forming that avoids information disclosure can be realized via the flow generated in the channel.Besidesnew dimensions of diversity, such as the aforementioned molecular diversity of ionic compounds, can beexploited. Note that the feasibility of these methods can be validated by the derived secrecy metrics.

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