AMIA Annual Symposium Proceedings

List of Papers (Total 3,840)

A large-scale analysis of the reasons given for excluding articles that are retrieved by literature search during systematic review.

A literature search to identify relevant studies is one of the first steps in performing a systematic review (SR) in support of evidence-based medicine. To maximize efficiency, the search must find practically all relevant studies and retrieve few that ...

Ontological approach to reduce complexity in polypharmacy.

Patients that are on many medications are often non-compliant due to the complexity of the medication regimen; consequently, a patient that is non-compliant can have poor medical outcomes. Providers are not always aware of the complexity of their patient’s ...

Decision path models for patient-specific modeling of patient outcomes.

Patient-specific models are constructed to take advantage of the particular features of the patient case of interest compared to commonly used population-wide models that are constructed to perform well on average on all cases. We introduce two patient-specific ...

Mobile app versus Web app: a comparison using 2008-2012 "PubMed for Handhelds" server data.

Recent surveys show that mobile apps are more popular than Web apps. Apple’s iTunes Store, now has about 800,000 apps and reported to have about 40 billion downloads. Android apps, although fewer, is available to the most number of smartphones ...

An information-centric framework for designing patient-centered medical decision aids and risk communication.

Risk communication is a major challenge in productive patient-physician communication. Patient decision making responsibilities come with an implicit assumption that patients are sufficiently educated and confident in their abilities to make decisions ...

Using animation as an information tool to advance health research literacy among minority participants.

Lack of adequate consumer health information about clinical research contributes to health disparities among low health literate minority multicultural populations and requires appropriate methods for making information accessible. Enhancing understanding ...

Automated extraction of the Barthel Index from clinical texts.

This paper describes a text mining program that computes the Barthel score of functional status by analyzing clinical notes stored in Electronic Health Record systems(EHR) and comparing them to textual evidence provided by clinical experts. The program ...

Design and evaluation of a bacterial clinical infectious diseases ontology.

With antimicrobial resistance increasing worldwide, there is a great need to use automated antimicrobial decision support systems (ADSSs) to lower antimicrobial resistance rates by promoting appropriate antimicrobial use. However, they are infrequently ...

Building and evaluating an ontology-based tool for reasoning about consent permission.

Given the lack of mechanisms for specifying, sharing and checking the compliance of consent permissions, we focus on building and testing novel approaches to address this gap. In our previous work, we introduced a “permission ontology” ...

Potential value of health information exchange for people with epilepsy: crossover patterns and missing clinical data.

For people with epilepsy, the potential value of health information exchange (HIE) is unknown.We reviewed two years of clinical encounters for 8055 people with epilepsy from seven Manhattan hospitals. We created network graphs illustrating crossover among ...

Using natural language processing on the free text of clinical documents to screen for evidence of homelessness among US veterans.

Information retrieval algorithms based on natural language processing (NLP) of the free text of medical records have been used to find documents of interest from databases. Homelessness is a high priority non-medical diagnosis that is noted in electronic ...

An early illness recognition framework using a temporal Smith Waterman algorithm and NLP.

In this paper we propose a framework for detecting health patterns based on non-wearable sensor sequence similarity and natural language processing (NLP). In TigerPlace, an aging in place facility from Columbia, MO, we deployed 47 sensor networks together ...

Location bias of identifiers in clinical narratives.

Scrubbing identifying information from narrative clinical documents is a critical first step to preparing the data for secondary use purposes, such as translational research. Evidence suggests that the differential distribution of protected health information ...

Collaborative development and maintenance of health terminologies.

The quest for a standardized terminology that can meet the varying needs of healthcare practice, and requirements for secondary use, is ongoing. The number of potential users and the number of potential uses for standardized terminologies make collaborative ...

A family-based framework for supporting quality assurance of biomedical ontologies in BioPortal.

BioPortal contains over 300 ontologies, for which quality assurance (QA) is critical. Abstraction networks (ANs), compact summarizations of ontology structure and content, have been used in such QA efforts, typically in a “one-off” manner ...

Patient clustering with uncoded text in electronic medical records.

We propose a mixture model for text data designed to capture underlying structure in the history of present illness section of electronic medical records data. Additionally, we propose a method to induce bias that leads to more homogeneous sets of diagnoses ...

Identifying synonymy between SNOMED clinical terms of varying length using distributional analysis of electronic health records.

Medical terminologies and ontologies are important tools for natural language processing of health record narratives. To account for the variability of language use, synonyms need to be stored in a semantic resource as textual instantiations of a concept. ...

Leveraging domain knowledge to facilitate visual exploration of large population datasets.

Observational patient data provides an unprecedented opportunity to gleam new insights into diseases and assess patient quality of care, but a challenge lies in matching our ability to collect data with a comparable ability to understand and apply this ...

Patient moderator interaction in online health communities.

An increasing number of people visit online health communities to share experiences and seek health information. Although studies have enumerated reasons for patients’ visits to online communities for health information from peers, we know little ...

Combining infobuttons and semantic web rules for identifying patterns and delivering highly-personalized education materials.

Infobuttons have been established to be an effective resource for addressing information needs at the point of care, as evidenced by recent research and their inclusion in government-based electronic health record incentive programs in the United States. ...

Desiderata for healthcare integrated data repositories based on architectural comparison of three public repositories.

Integrated data repositories (IDRs) are indispensable tools for numerous biomedical research studies. We compare three large IDRs (Informatics for Integrating Biology and the Bedside (i2b2), HMO Research Network’s Virtual Data Warehouse (VDW) ...

Using hierarchical mixture of experts model for fusion of outbreak detection methods.

A wide variety of disease outbreak detection methods has been developed in automated public health surveillance systems. The choice of outbreak detection method results in large changes in performance under different circumstances. In this paper, we investigate ...

Variation in information needs and quality: implications for public health surveillance and biomedical informatics.

Understanding variation among users’ information needs and the quality of information in an electronic system is important for informaticians to ensure data are fit-for-use in answering important questions in clinical and public health. To measure ...

Linked data and online classifications to organise mined patterns in patient data.

In this paper, we investigate the use of web data resources in medicine, especially through medical classifications made available using the principles of Linked Data, to support the interpretation of patterns mined from patient care trajectories. Interpreting ...

Cloudwave: distributed processing of "big data" from electrophysiological recordings for epilepsy clinical research using Hadoop.

Epilepsy is the most common serious neurological disorder affecting 50–60 million persons worldwide. Multi-modal electrophysiological data, such as electroencephalography (EEG) and electrocardiography (EKG), are central to effective patient care ...