Notes: Bioinformatics Open Source Conference 2015 day 1 morning — Holly Bik and Data Science

I’m at the 2015 Bioinformatics Open Source Conference (BOSC) in Dublin, Ireland. BOSC is a two day community conference devoted to open source and science. Nomi Harris starts the day off with an introduction to BOSC – this is the 16th annual year. The theme this year in Open Source, Open Door: we have a strong interest in improving diversity at BOSC. Some of the work in progress includes: reaching out to many under-represented groups and sending personal invitations, adding a code of conduct to both BOSC and ISMB, appointing Sarah Hird as the BOSC outreach coodinator, and providing financial support for scientists who might otherwise not be able to attend.


Holly Bik – Bioinformatics: Still a scary world for biologists

Holly plans to talk about her experience transitioning from biology to bioinformatics. 2010 is the year that Holly saw the command line for the first time, and will give her perspective as an end user. Holly works on marine nematodes, although environmental sequencing allows you to sample everything you’ll find. So you might be looking at nematodes, but will find plenty of other tiny eukaryotes to study: neglected taxa in understudied habitats.

Holly provides a motivating example: the impact of the Deepwater Horizon oil spill in September of 2010. She then describes her biology experience: collecting deep water samples, nematode classification, drawing of nematodes. None of that was a good preparation for the command line. Holly had to adpat to a fast-moving field: collecting 1000s of samples, dealing with bias and contamination error, using multiple approaches. Holly quotes Donald Rumsfeld about known unknowns. Holly feels confident knowing how to do basic scripting and debugging. Known unknowns: new techs like Hadoop, Drupal, etc creates a barrier. Unknown unknowns: distributed computing, binary formatted files that aren’t clearly different than previous text files.

Holly mentions the useful point that how you call yourself influences people’s perceptions. Computational biologist says one thing to people and Marine Biologist says another. How do we properly present ourselves both in jobs and grants.

Two options for biologists who need bioinformatics: hacking it together yourself or using pre-packaged tools. She awesomely compares to the Oregon trail game. I had no idea that Oregon trail was so comparable to biology + bioinformatics. Do not try to cross the river yourself.

How to learn and get going? Hardest part is intermediate learners: lots of resources for early adopters but less as you already known something but want to level up.

Holly talks about her open-source work on Phinch – research-driven data visualation. Provides visualization of data in chrome. Really nice interface designed by actual interface designers. It’s a prototype framework, currently has five unique visualizations for summarizing data. Allows you to look at both high and low level patterns. Visualization helps make this data available to citizen scientists.

Next phases of development: phylogenetic visualizations, open public APIs with a self-sustaining developer community. Code on GitHub.

Main points: provide more interdisciplinary training, collaboration and interaction for intermediate learners. Tools that actually take advantage of biology and reduce the need for biological expertise.

We have a new Q/A format we’re trying out with questions from twitter and index cards. On training courses – found that in-person courses are much more useful than online because of actually following through and finishing them. Teach people to Google their error messages – yes please.

Data Science

Mónica Muñoz-Torres – Apollo: Scalable & collaborative curation for improved comparative genomics

Moni works at LBL on WebApollo with Nathan Dunn and Suzi Lewis. Goal is to improve Manual Annotation and improve scalability of this work. Architecture has 3 components: web based front end, annotation editing enging and server side data service. Uses Google Web Toolkit on front end, Grails on the backend plus single datastore with PostgreSQL. Moni describes a lot of the pain of refactoring and difficulty in working with new technologies to estimate times. Code on GitHub.

Kévin Rue-Albrecht – GOexpress: Visualize gene expression using gene ontology

Kévin talks about motivations behind GOexpress, an R/Bioconductor tool for making sense of gene expression data. Shows huge map to demonstrate the difficult in identifying the effect of a treatment. Often have multiple experimenal factors, noise in the data and clustering driven by a few genes of large effects. For instance, MHC drives clustering in animals and need to cluster genes by effects to determine this and actually look at signal. Uses random forest and ANOVA methods to classify genes and separates by ontology. Expose selection of genes through a Shiny web application. Tricky parts with random forest – need to run permutations to get p-values that everyone wants. Code on GitHub.

Peter Amstutz – Arvados: A Free Software Platform for Big Data Science

Peter talks about computational reproducibility with Arvados, first motivating with examples of how we improve our ability to run complex pipelines. Components of Arvaods: Keep content addressable storage. It’s versioned, immutable and manifests allow reorganization. I wish I understood filesystems better to know how Hadoop-y file systems different from this. Crunch is the computational engine. uses Keep for data, Git for code and Docker for tools to have a full set of reproducible components. This architecture allows moving analyses between multiple instances. Arvados provides facilities for this sharing – both public and between groups in private. Ends by mentioning writing Common workflow language and move towards better workflow standards that will be in a talk by Michael later.

Sebastian Schoenherr – Bringing Hadoop into Bioinformatics with Cloudgene and CloudMan

Sebastian motivates by talking about a BOSC talk fom 2012 by Enis Afgan on CloudMan, and describes the awesome work on automating Galaxy + AWS. Sebastian also talked about CloudGene talk from himself in 2012. Now CloudGene is more of a software as a service platform, providing dedicated services for a given workflow. Supports the full Hadoop stack: Spark, MRv2, Pig. Lots in common with CloudMan and decided to combine projects, using CloudGene for Hadoop execution within CloudMan. Presents a cool use for hadoop – Michigan Imputation Server: a free service to provide QC + Phasing + Imputation. Really nice, and provides a platform for building more services.

Michael Hoffman – Segway: semi-automated genome annotation

Segway finds patterns from multiple biological signal tracks like ChIP-seq. It discovers patterns and then provides annotation, visualization and interpretation. Genome segmentation breaks up the genome into non-overlapping segments, then pushes around boundaries to maximize similarity within regions. Uses a generalized HMM to discover structure in the inputs based on a specific number of classifications to segment by. Michael makes good point that coders are biologists too and can use his knowledge of chromatin structure to develop hypotheses from these inputs and then test those. Use this knowledge to apply labels for each segment of the genome. This provides nice annotation tracks for making sense of variations in non-coding regions. Nicely able to ensure that Segway signals match with the expected biology. Michael makes another good point about the importance of looking in depth at specific regions, and then using this to do biological experiments to confirm.

Konstantin Okonechnikov – QualiMap 2.0: quality control of high throughput sequencing data

Qualimap does a comprehensive job of running quality control of seuencing data. The new version of BAM QC was redesigned to add many new metrics. Added a method to combine results from multiple bam results together and summarize them. Runs a PCA analysis to detect outliers in a group of results. Also redesigned RNA-seq quality control. Konstantin highlights the larger number of folks from the community who contribute to QualiMap.

Andrew Lonie – A Genomics Virtual Laboratory

Andrew talks about the Genomics Virtual Lab (GVL) which supplies compute along with a set of tools to work on top of it. Awesome resource for Australian Bioinformatics with CloudMan, Galaxy. Provides reproducibie, redeployable platforms.

Tony Burdett – BioSolr: Building better search for bioinformatics

BioSolr provides an optimized approach for complexity of life sciences data on top of Solr, Lucene and Elastic Search. The mission is to build a community of users around improving searching for biology. Provides faceting with ontologies, plugins for joining indexes with external indexes to provide federated search.


2 thoughts on “Notes: Bioinformatics Open Source Conference 2015 day 1 morning — Holly Bik and Data Science

  1. Pingback: Notes: Bioinformatics Open Source Conference 2015 day 2 morning — Ewan Birney, Open Science and Reproducibility | Small Change Bioinformatics

  2. Pingback: Notes: Bioinformatics Open Source Conference 2015 day 2 afternoon: Translational, Visualization and Lightning Talks | Small Change Bioinformatics

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