NICHOLAS J. MATIASZ, Ph.D.

2015 AMIA Joint Summits on Translational Science

A screenshot of our 2015 AMIA CRI Poster

The American Medical Informatics Association (AMIA) hosted the 2015 Joint Summits on Translational Science in San Fransisco. The first half of the conference featured work on translational bioinformatics, and the second half featured work on clinical research informatics.

ResearchMaps poster

During the second half of this conference, I presented a poster titled “Synthesizing Clinical Trials for Evidence-based Medicine: a Representation of Empirical and Hypothetical Causal Relations.” Building off of the work I presented at the 13th Molecular and Cellular Cognition Society Meeting, this poster presented our efforts to use ResearchMaps to represent causal relations in the clinical trial literature.

Representing an article as a causal graph

Our poster also reported one of our newest features in ResearchMaps: the ability to represent both empirical and hypothetical causal relations in a single causal graph. We developed this feature to address an obvious fact: When we read a research paper, we don’t only consider the information presented in the text; we also use our domain knowledge to contextualize, interpret, and structure the information.

To see why this feature is useful, consider a causal graph that models a biochemical cascade, or signal pathway. We’ll model this pathway as . Now consider a research paper with experiments that deal only with a subset of the entities in the pathway—for example, experiments that test the relations , , and . The resulting graph of these experiments does not make the pathway evident. However, if you believe that the pathway exists, you’ll use this information to interpret the results of the reported experiments. To visualize this contextual knowledge, ResearchMaps allows you to model both the empirical causal relations—those for which a publication offers supporting data—as well as hypothetical relations—putative relations for which a publication has no supporting data.

An illustration of our new feature to represent hypothetical causal relations

References

For a sampling of the people who attended this conference and the publications, ideas, etc. that were discussed, I’ve compiled a short list of references. This list is not meant to be exhaustive in any way; it simply reflects who and what caught my attention.

People

Publications

Organizations, software, etc.

Tweets

Below are tweets from the conference with the hashtag #TBICRI15.

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