Research

Discovery and innovation at the DIVA lab is driven by questions at all granlarities of biomedical information including at the genomics, proteomics, phenomics, population, and webscale levels.

Our goal is to use theory-based visual analytical methods to discover and validate patterns in biomedical data, and translate those discoveries into systems, methods, and frameworks that help humans perform real-world information intensive tasks.

Research in the DIVA lab is interdisciplinary and collaborative by necessity, and because we are fascinated by the varied forms of knowledge that each expert contributes to solving a biomedical mystery.


Discovery
 
Race-SNPs Bipartite Visual Analytics of SNP-Subject Data
The analysis revealed the role that complementary bipartite visual representations play in helping to generate novel insights into SNP data (Bhavnani et al., 2012). [Distinguished Paper Award] [News].
Asthma-Hive

Hive Analysis of Asthma Trends
The analysis revealed city-specific multivariate relationships between asthma Internet searches and pollen counts, suggesting the use of asthma searches as a proxy for asthma incidents across cities (Divekar et al., 2012).

Asthma-Circos Circos Ideogram Analysis of Asthma Patient Attributes
The analysis revealed complex relationships between asthma molecular and phenotype information, and the complementary role of ideograms to networks (Bhavnani et al., 2011).
Asthma-Network Network Analysis of Asthma Patients and Cytokines
The analysis led to insights about a new state-based classification of asthma patients and molecular pathways involved in disease regulation (Bhavnani et al., 2011). [Distinguished Paper Award]
Sensor-First Network Analysis of Pregnant Uterine Contractions
The analysis explores the use of network modularity to quantify the degree of synchronization of muscle contractions in the uterus, which could help in predicting and preventing premature births (Bhavnani et al., 2011).
Clincical-trials Network Analysis of Clinical Trials and Interventions
The analysis led to insights about the current state of depression trials, and to a graph-theoretic measure called "Placebo Distance" with applications in comparative effectiveness research (Bhavnani et al., 2010).
CAVE 3D Network Analysis of Renal Genes in Immersive CAVE
The analysis revealed a new regularity of domain importance that was missed in the 2D network analysis of the same data. The results led to hypotheses for the role played by different CAVE functionalities in enabling new discoveries (Bhavnani et al., 2010).
Cancer Network Analysis of Cancer Patients and Symptoms
The results led to the design of algorithms to help clinicians rapidly identify co-occurring symptoms (Bhavnani et al., 2009, Bhavnani et al., 2010).
Renal

Network Analysis of Renal Diseases and Genes
The results led to implications for a molecular basis of classifying renal diseases (Bhavnani et al., 2009). [Outstanding Paper Award] Explore the Network

WISER Network Analysis of Toxic Chemicals and Symptoms
The results led to the design of algorithms and interfaces to help first-responders rapidly identify toxic chemicals in emergencies (Bhavnani et al., 2007). [Distinguished Paper Award]
Scatter
Scatter of Healthcare Information on the Web
The results led to search strategies for finding comprehensive healthcare information, and to the Information Scatter model which proposes how information scatter occurs over time (Bhavnani et al., 2003, Bhavnani, 2005, Adamic et al., 2007, Bhavnani & Wilson, 2010, Bhavnani & Peck, 2010).

Innovation

iCircos iCircos: Visual Analytics for Translational Bioinformatics
System to interactively generate Circos representations of bipartite data such as the relationship between patients and cytokines (Bhavnani et al., 2012).
GGBS Efficient Algorithms for Rapid Diagnosis in Emergencies
Extensions of the generalized binary search (GBS) algorithm for identifying groups of objects (e.g., classes of chemicals instead of individual chemicals), and for query noise (e.g., for incorrect inputs due to cognitive stress during emergencies). (Bellala et al., 2010 , Bellala et al., in press ).
MAIDN MAIDN: Mining And Interpretation of Diagnostic Networks
MAIDN is designed for the rapid identification of toxic chemicals during emergencies. The system significantly reduces the symptoms required to uniquely identify a chemical (Bhavnani et al., 2008, Bhavnani et al., 2008).
StrategyHub Strategy Hub: Web Portal for Finding Comprehensive Cancer Information
Users of the Strategy Hub found more comprehensive cancer information in the same amount of time compared to equivalent subjects using MedlinePlus or Google (Bhavnani et al., 2006).
GoogleBuddy GoogleBuddy: Social Computing System for Learning and Sharing Search Strategies
The results are leading to insights for providing online search knowledge (GROCS Award).
  Strategy-Instruction Strategy-Based Instruction
Theory-based, empirically-tested instruction to enable the rapid acquisition of efficient and effective strategies to use complex computer applications. Tested with 400 students in 3 universities including the Nursing School at the University of Michigan (Bhavnani et al., 2001, Bhavnani et al., 2008).

 

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