scholarly journals Augmented EHR: Enrichment of EHR with Contents from Semantic Web Sources

2021 ◽  
Vol 11 (9) ◽  
pp. 3978
Author(s):  
Alejandro Mañas-García ◽  
José Alberto Maldonado ◽  
Mar Marcos ◽  
Diego Boscá ◽  
Montserrat Robles

This work presents methods to combine data from the Semantic Web into existing EHRs, leading to an augmented EHR. An existing EHR extract is augmented by combining it with additional information from external sources, typically linked data sources. The starting point is a standardized EHR extract described by an archetype. The method consists of combining specific data from the original EHR with contents from the external information source by building a semantic representation, which is used to query the external source. The results are converted into a standardized EHR extract according to an archetype. This work sets the foundations to transform Semantic Web contents into normalized EHR extracts. Finally, to exemplify the approach, the work includes a practical use case in which the summarized EHR is augmented with drug–drug interactions and disease-related treatment information.

2013 ◽  
Vol 16 (06) ◽  
pp. 1350035 ◽  
Author(s):  
ALINA SÎRBU ◽  
VITTORIO LORETO ◽  
VITO D. P. SERVEDIO ◽  
FRANCESCA TRIA

Opinion formation is an important element of social dynamics. It has been widely studied in the last years with tools from physics, mathematics and computer science. Here, a continuous model of opinion dynamics for multiple possible choices is analyzed. Its main features are the inclusion of disagreement and possibility of modulating external information/media effects, both from one and multiple sources. The interest is in identifying the effect of the initial cohesion of the population, the interplay between cohesion and media extremism, and the effect of using multiple external sources of information that can influence the system. Final consensus, especially with the external message, depends highly on these factors, as numerical simulations show. When no external input is present, consensus or segregation is determined by the initial cohesion of the population. Interestingly, when only one external source of information is present, consensus can be obtained, in general, only when this is extremely neutral, i.e., there is not a single opinion strongly promoted, or in the special case of a large initial cohesion and low exposure to the external message. On the contrary, when multiple external sources are allowed, consensus can emerge with one of them even when this is not extremely neutral, i.e., it carries a strong message, for a large range of initial conditions.


2019 ◽  
pp. 004912411988247 ◽  
Author(s):  
Tobias Gummer ◽  
Tanja Kunz

Knowledge questions frequently are used in survey research to measure respondents’ topic-related cognitive ability and memory. However, in self-administered surveys, respondents can search external sources for additional information to answer a knowledge question correctly. In this case, the knowledge question measures accessible and procedural memory. Depending on what the knowledge question aims at, the validity of this measure is limited. Thus, in this study, we conducted three experiments using a web survey to investigate the effects of task difficulty, respondents’ ability, and respondents’ motivation on the likelihood of searching external sources for additional information as a form of over-optimizing response behavior when answering knowledge questions. We found that the respondents who are highly educated and more interested in a survey are more likely to invest additional efforts to answer knowledge questions correctly. Most importantly, our data showed that for these respondents, a more difficult question design further increases the likelihood of over-optimizing response behavior.


2012 ◽  
Vol 12 (4-5) ◽  
pp. 659-679 ◽  
Author(s):  
THOMAS EITER ◽  
MICHAEL FINK ◽  
THOMAS KRENNWALLNER ◽  
CHRISTOPH REDL

AbstractAnswer Set Programming (ASP) is a well-known problem solving approach based on nonmonotonic logic programs and efficient solvers. To enable access to external information,hex-programs extend programs withexternal atoms, which allow for a bidirectional communication between the logic program and external sources of computation (e.g., description logic reasoners and Web resources). Current solvers evaluatehex-programs by a translation to ASP itself, in which values of external atoms are guessed and verified after the ordinary answer set computation. This elegant approach does not scale with the number of external accesses in general, in particular in presence of nondeterminism (which is instrumental for ASP). In this paper, we present a novel, native algorithm for evaluatinghex-programs which uses learning techniques. In particular, we extend conflict-driven ASP solving techniques, which prevent the solver from running into the same conflict again, from ordinary tohex-programs. We show how to gain additional knowledge from external source evaluations and how to use it in a conflict-driven algorithm. We first target the uninformed case, i.e., when we have no extra information on external sources, and then extend our approach to the case where additional meta-information is available. Experiments show that learning from external sources can significantly decrease both the runtime and the number of considered candidate compatible sets.


Biomimetics ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 13
Author(s):  
Adam Bignold ◽  
Francisco Cruz ◽  
Richard Dazeley ◽  
Peter Vamplew ◽  
Cameron Foale

Interactive reinforcement learning methods utilise an external information source to evaluate decisions and accelerate learning. Previous work has shown that human advice could significantly improve learning agents’ performance. When evaluating reinforcement learning algorithms, it is common to repeat experiments as parameters are altered or to gain a sufficient sample size. In this regard, to require human interaction every time an experiment is restarted is undesirable, particularly when the expense in doing so can be considerable. Additionally, reusing the same people for the experiment introduces bias, as they will learn the behaviour of the agent and the dynamics of the environment. This paper presents a methodology for evaluating interactive reinforcement learning agents by employing simulated users. Simulated users allow human knowledge, bias, and interaction to be simulated. The use of simulated users allows the development and testing of reinforcement learning agents, and can provide indicative results of agent performance under defined human constraints. While simulated users are no replacement for actual humans, they do offer an affordable and fast alternative for evaluative assisted agents. We introduce a method for performing a preliminary evaluation utilising simulated users to show how performance changes depending on the type of user assisting the agent. Moreover, we describe how human interaction may be simulated, and present an experiment illustrating the applicability of simulating users in evaluating agent performance when assisted by different types of trainers. Experimental results show that the use of this methodology allows for greater insight into the performance of interactive reinforcement learning agents when advised by different users. The use of simulated users with varying characteristics allows for evaluation of the impact of those characteristics on the behaviour of the learning agent.


Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1367
Author(s):  
Valentina Obradović ◽  
Jurislav Babić ◽  
Verica Dragović-Uzelac ◽  
Antun Jozinović ◽  
Đurđica Ačkar ◽  
...  

The objective of this research was to investigate the potentiality of carrot powder (CP) utilization at levels 4, 6, or 8% as ingredient of corn snacks and evaluation of the extrusion influence on functionally important ingredients such as carotenoids (color), polyphenols, fiber, fat, and antioxidant activity. The influence of ascorbic acid (AA) as an external source at levels 0.5 and 1% on this particular extrusion was also investigated. A single-screw extruder at two temperature regimes (135/170/170 °C (E1) and 100/150/150 °C (E2)) carried out extrusion. The E1 temperature regime acted favorably on total polyphenol content and crude fiber, but fat preferred the E2 regime. Extrusion, especially the E1 temperature regime, increased the extractability of carotenoids. Ascorbic acid degraded during extrusion, but it still provided protection to carotenoids and color attributes of extrudates. Snacks with increased nutritional and functional value due to carrot powder addition were successfully produced, which is a starting point for production of a new type of extruded snacks.


2020 ◽  
Vol 8 (4) ◽  
pp. 411
Author(s):  
Irianto Liko Koten ◽  
Cokorda Rai Adi Pramartha

Bali is an island in Indonesia that is rich in culture, for example, is a traditional dance. The traditional dance performance is diverse from one village to another village in Bali. The traditional Balinese dance knowledge should be captured dan documented well in a digital form so that it can be shared easily to different people and generation across the world. The use of ontology as an information representation technique is the preferred solution in this matter because ontology can be used to enhance the development of semantic applications, especially when dealing with semantic webs. In this project, the ontology was built using Protege ontology development tool.  We follow the methontology ontology development method where this methodology clearly describes each of its activity. In this study, we focus to describe two variants of Balinese traditional dance (Barong dance and Pendet dance). In the future, we expect that more type of dance can be documented using our proposed ontology. Keywords: Balinese Dance, Ontology,Semantic Web


2017 ◽  
Vol 8 (2) ◽  
pp. 296-310 ◽  
Author(s):  
Bahar Yasin ◽  
Fakhri Baghirov ◽  
Ye Zhang

Purpose This paper aims to identify the most popular travel information sources used among tourists and investigates how travel information selection differs across travel experience and gender. Design/methodology/approach This study used convenient and quota sampling strategy, questionnaires were distributed to 270 respondents at Sultanahmet and Grand Bazaar areas. A screening question was used to classify respondents. Findings First, past travel experience, travel agent, travel websites and hotel websites are generally the most frequently used travel information sources in destination selection due to conveniences and reliability. Second, first-timers prefer to use external information sources such as Facebook, guidebooks, travel agents and newspapers to gather information about destinations, whereas repeat visitors prefer to use internal information sources such as friends’ suggestions and past travel experience. Lastly, female visitors rely more on internal information sources such as friends’ suggestions and past travel experience. However, males prefer to use external information sources like Facebook, television, blog, travel agents, newspaper and guidebooks in choosing Turkey as a destination. Research limitations/implications Because factors studied, travel information sources selected, number of respondents and questionnaire distribution area are limited, future studies can expand to a bigger area so more respondents could get more reliable results. Practical implications This paper could help tourism industries understand searching behaviours among different types of tourists better to promote businesses in convenient sources and reach target customers easily. Originality/value This paper fulfils an identified need to study how travel information searching behaviours differ among tourists.


Author(s):  
Mark-Shane Scale ◽  
Anabel Quan-Haase

Blogs are important sources of information currently used in the work of professionals, institutions and academics. Nevertheless, traditional information needs and uses research has not yet discussed where blogs fit in the existing typologies of information sources. Blogs and other types of social media have several characteristics that blur the lines of distinction existent between traditional information source categories. This chapter brings this research problem to the fore. Not only do we examine why blogs do not neatly fit into existing information source categories, but we also deliberate the implications for libraries in terms of the need to consider blogs as an information source to be included in collection development. We discuss the opportunities and possibilities for blogs to be integrated into the collection development efforts of academic and public libraries to better serve patrons. In order to accommodate for blogs and other types of social media as information sources, we propose the introduction of an additional information source category. We suggest new avenues of future research that investigate how blogs are being used to meet information needs in various social settings, such as corporations, health care and educational settings (e.g., higher education, and schools). In this chapter, we develop a framework of how blogs may function as information sources to provide libraries with a better understanding of how blogs are integrated into the context of everyday information seeking. By grouping the ways in which people employ blogs to acquire information, we propose that blogs provide information sources along a continuum ranging from non-fiction to fictional information.


Author(s):  
Ji-Rong Wen

Web query log is a type of file keeping track of the activities of the users who are utilizing a search engine. Compared to traditional information retrieval setting in which documents are the only information source available, query logs are an additional information source in the Web search setting. Based on query logs, a set of Web mining techniques, such as log-based query clustering, log-based query expansion, collaborative filtering and personalized search, could be employed to improve the performance of Web search.


2019 ◽  
Vol 45 ◽  
Author(s):  
Mark H.R. Bussin

Problemification: Some academics joined the profession from private sector late in their career. They are sometimes referred to fondly as practical academics or ‘pracademics’ because they still work in private sector and also act as a visiting professor in academia. I sit on eight boards and chair nearly half of them, and serve on audit committees and HR Remuneration committees. I am an example of a ‘pracademic’, and my induction into academia was one sentence – publish or perish. In the private sector, induction can take up to a week. I had one minute.Implications: The implication is that I had to find out what a peer-reviewed journal was and trip into the fact that some peer-reviewed journals are scams and others A rated. Telling the difference in my initial years took its toll. I continually had to ask colleagues – is this journal real? Eventually I realised the DHET list was a good starting point and I started submitting articles. I got more rejections than acceptances at first, with very little explanation. So I learnt nothing and did not know what to do to improve. I had to waste another thousand reviewer hours of time to learn what the requirement was.Research writing is guided by a personal philosophy, and it is about what types of research issues one is inclined towards. For instance, some people are naturally inclined towards basic research and others towards applied research. Others are more oriented towards theory building and testing types for the purpose of creating knowledge for the sake of knowledge. Some others are pragmatic types or realist types and believe real-world problems do not come neatly packaged and are somewhat untidily in presentation calling for discretion or judgement on what to prioritise for research and how to carry out the research. Some are scientist practitioners (evidence informed researchers) and others are practitioner-scientist (practice-led science).Perhaps this kind of orientation to research is what early career researchers need initially; then, they can worry about reproducibility of research findings down the line after grounding themselves into the research space they perceive to belong to and where they feel invested.Purpose: The purpose of this opinion article is to share my journey and sow some doubt in reply to the opinion piece circulated by Efendic and Van Zyl. Whilst I do agree with everything that is said in their article, I believe that there is additional information that needs to be considered. Context is important. Not all academics that submit articles have been in academia for many years. We need to do more to support budding authors.Recommendations: We need to be much more helpful to budding authors than just publishing a page or two called author submission guidelines. These are mostly cosmetic style guides. If we want a higher quality submission and plenty of them – then I believe we need to educate our budding authors of the requirements. Perhaps we need a detailed guide, similar in content and depth as the article of Efendic and Van Zyl (2019). We could consider a podcast setting out the technical guidelines and statistical requirements. Running courses on article publishing by the reviewers is important because that is from the horse’s mouth. Trust me; it is not just a case of sticking to the style guide. You need to really understand some of the under currents of article publishing, for example, quoting as many authors from that particular journal’s list of articles as possible.


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