Past CCB Seminars
September 2023 Seminar
Speaker: Anthony-Alexander Christidis
Topic: A New Ensemble Learning Framework for Modeling High-Dimensional Data
When: Monday, September 11, 2023
Abstract: Ensemble methods have gained a lot of popularity in computational statistics and machine learning due to their flexibility and generally superior predictive performance compared to single-model methods. However, state-of-the-art ensemble methods rely on randomization and other forms of heuristics to generate diverse base learners, and are thus considered uninterpretable backbox algorithms. In this talk, we will introduce an entirely new framework for ensemble learning, free of randomization and heuristics. The models in these ensembles are learned by optimizing by a global objective function that generates diverse base learners while maintaining a degree of interpretability. Some aspects related to robustness will be discussed.
Recording: Click Here
June 2023 Seminars
Speaker: Jonathan Foster, PhD, Chief Technical Officer, Glue solutions Inc
Topic: Glue Genes: Exploratory Data Analysis for Single Cell and Spatial Omics
When: Monday, June 26, 2023
Recording: Click here
Abstract: Glue genes is a new open source tool bringing the power of the glue visualization library to analysis of single-cell and spatial omics data. The core features of glue genes are (1) flexible linking of diverse, multi-dimensional datasets, (2) automatic connections across multiple visualizations, and (3) easy extensibility and integration with other open source Python tools. I will talk about the philosophy and design of glue genes, and show examples of how it can be used to explore linked datasets in real time, showcasing the desktop application as well as the in-development “glupyter” project, which puts the power of glue inside Jupyter Lab. glue genes is developed in partnership with the Jackson Laboratory.
Speaker: Graham Heimberg, PhD, Principal Scientist, Genentech
Topic: Scalable cell search of human cell atlases via deep learning reveals commonalities across disease associated macrophages
When: Monday, June 5, 2023
Recording: Click here
Single-cell RNA-seq (scRNA-seq) studies have profiled over 100 million human cells across diseases, developmental stages, and perturbations to date. A singular view of this vast and growing expression landscape could help reveal novel associations between cell states and diseases, discover cell states in unexpected tissue contexts, and relate in vivo cells to in vitro models. However, these require a common, scalable representation of expression profiles, a general measure of their similarity, and an efficient way to query these data. Here, we present SCimilarity, a metric learning framework to learn and search a unified and interpretable representation that annotates cell types and instantaneously queries for a cell state across tens of millions of profiles. We demonstrate SCimilarity on a 22.7 million cell corpus assembled across 399 published scRNA-seq studies, showing accurate integration, annotation and querying. We experimentally validated SCimilarity by querying across tissues for a macrophage subset originally identified in interstitial lung disease, and showing that cells with similar profiles are found in other fibrotic diseases, tissues, and a 3D hydrogel system, which we then leveraged to yield this cell state in vitro. SCimilarity enables researchers to query for similar cellular states across the entire human body, providing a powerful tool for generating novel biological insights from the growing Human Cell Atlas.
May 2023 Seminars
SPECIAL: The Center for Computational Biomedicine (CCB) hosted a joint seminar series with the Image Analysis Collaboratory (IAC) at Harvard Medical School with a focus on best practices and leading tools for quantitative analysis of biomedical images.
Speaker: Talley Lambert, PhD, Associate Director of Imaging Technology @ Nikon Imaging Center, Harvard Medical School; Core Developer, Napari
Topic: Napari: A multi-dimensional data viewer for Python
When: Monday, May 1, 2023
Recording: Click here
With the advent of new multiplexed tissue imaging technologies, there is a growing need for efficient tools for browsing, annotating, and analyzing large multi-dimensional images. In this seminar, Talley will discuss Napari, an open source, interactive, multi-dimensional data viewer for Python.
Speakers: Hector Corrada Bravo, PhD; and Jayaram Kancherla
Topic: The SingleCellHub at Genentech: how to manage and query data from 130M cells
When: Monday, April 3, 3:00 – 4:00 PM Eastern Time (United States and Canada)
Recording: Click here
Speakers: Marinka Zitnik and Michelle M. Li
Topic: Foundational AI for Genomic Medicine and Therapeutic Design
When : Monday, May 22, 3:00 – 4:00 PM Eastern Time (United States and Canada)
Recording: Click here
April 2023 Seminars
Speaker: Aaron lun, Scientist at Genentech
Topic: Code, sweat, and tears: how the OSCA sausage was made
When: Monday, April 3, 3:00 – 4:00 PM Eastern Time (United States and Canada)
Recording: Click here
Speaker: Matthew McDermott, Ph.D.
Topic: Generalizable and Performant Software for Producing Medical Record Foundation Models
When: Apr 17, 2023 09:50 AM Eastern Time (US and Canada)
Recording: Click here
March 2023 Seminars
Speaker: Isabella Grabski, PhD Candidate in Biostatistics, Department of Biostatistics, Harvard School of Public Health
Topic: Probabilistic approaches to cell type annotation and clustering in single-cell RNA-seq data
Recording: Click here
Speaker: Sebastian Lobentanzer, Postdoc at the Institute for Computational Biomedicine, Heidelberg University Hospital
Topic: Democratising Knowledge Representation with BioCypher
Relevant links: arXiv, Biocypher
Recording: Click here
Speaker: Dr. Mine Çetinkaya-Rundel, Director of Undergraduate Studies, Professor of the Practice, Department of Statistical Science, Duke University
Topic: Hello, Quarto: A World of Possibilities (for Reproducible Publishing)
Recording: Click here
February 2023 Seminars
Speaker: Brett Beaulieu-Jones, PhD, Assistant Professor, University of Chicago
Topic: “Limits of Machine Learning Models Tied to Clinical Intuition: Implications for AI-based Clinical Decision Support”
Relevant link: Click here
Recording: pending approval
Speaker: Kun-Hsing Yu, MD, PhD, Assistant Professor, DBMI HMS
Topic: Artificial Intelligence-Enabled Cancer Pathology Evaluation
Recording: Not available
Speaker: Bethany Hedt-Gauthier, PhD, Associate Professor of Global Health and Social MedicineAssociate Professor in the Department of Biostatistics, Harvard T.H. Chan School of Public Health, HMS and Siona Prasad, Undergraduate Researcher at Harvard College Department of Computer Science
Topic: Image-based algorithms for remote surgical site infection diagnoses in rural Rwanda
Recording: Not available
January 2023 Seminars
Speaker: Katharina Imkeller, PhD, Group leader Computational Immunology, University Hospital Frankfurt, Germany
Topic: Unraveling Immunogenomic Diversity in Single-Cell Data
Recording: Not available
Speaker: Trevor Manz, PhD Candidate & NSF Research Fellow, DBMI HMS
Topic: Interactive, web-based visualization of high-resolution multiplexed bioimaging data
Abstract: Although the rapid innovation of biological imaging brings significant scientific value, the proliferation of technologies without unification of interoperable standards has created challenges that limit the analysis and sharing of results. In this talk, I will discuss our work on 1.) community-driven design and adoption of open-standard next-generation file formats and 2.) the open-source Viv bioimaging visualization library which supports OME-TIFF and OME-NGFF directly in the web browser. Viv addresses a critical limitation of most web-based bioimaging viewers by removing a dependency on server-side rendering, offering a flexible toolkit for browsing multi-terabyte datasets on both mobile and desktop devices—without software installation.
Recording: Click here
December 2022 Seminars
Speaker: Nicolas Matentzoglu, PhD, Independent Contractor, Semantic Web and Knowledge Graphs expert
Topic: Open SSSOM – Unlocking the wealth of biomedical data using shared standardized entity mappings
Recording: Click here
November 2022 Seminars
Speaker: Dr. Matthew Crowson, MD MPA MASc FRCSCAssistant Professor, Investigator, Department of Otolaryngology-Head & Neck Surgery, Massachusetts Eye & Ear
Topic: Computer Vision for Irritable Toddlers: Improving Diagnostic Accuracy for Ear Infections
Recording: Not available
Speaker: Faisal Mahmood, PhD, Assistant Professor, Pathology, Harvard Medical School
Affiliation: Division of Computational Pathology, Brigham and Women’s Hospital; Data Science Program, Dana-Farber/Harvard Cancer Center; Cancer Program, Broad Institute of Harvard and MIT
Topic: Data-efficient and multimodal computational pathology
Abstract Advances in digital pathology and artificial intelligence have presented the potential to build assistive tools for objective diagnosis, prognosis and therapeutic-response and resistance prediction. In this talk we will discuss our work on: 1) Data-efficient methods for weakly-supervised whole slide classification with examples in cancer diagnosis and subtyping (Nature BME, 2021), and allograft rejection (Nature Medicine, 2022) 2) Harnessing weakly-supervised, fast and data-efficient WSI classification for identifying origins for cancers of unknown primary (Nature, 2021). 3) Discovering integrative histology-genomic prognostic markers via interpretable multimodal deep learning (IEEE TMI, 2020; ICCV, 2021; Cancer Cell, 2022). 4) Self-supervised deep learning for pathology and image retrieval (CVPR, 2022; Nature BME, 2022). 5) Deploying weakly supervised models in low resource settings without slide scanners, network connections, computational resources, and expensive microscopes. 6) Bias and fairness in computational pathology algorithms.
Relevant links:
Lu et al. Nat BME, 2021 Data-efficient and weakly supervised computational pathology on whole-slide images
Ming et al. Nature, 2021 AI-based pathology predicts origins for cancers of unknown primary
Lipkova et al. Nature Medicine, 2022 Deep learning-enabled assessment of cardiac allograft rejection from endomyocardial biopsies
Chen et al. Cancer Cell, 2022 Pan-cancer integrative histology-genomic analysis via multimodal deep learning
Recording: Not available
Speaker: Jeffrey Moffitt, PhD, Assistant Professor, Department of Microbiology, HMS
Topic: Building tissues atlases with MERFISH: The new opportunities and challenges of image-based single-cell transcriptomics
Recording: Not available
October 2022 Seminars
Speaker: Shila Ghazanfar, PhD, ARC Discovery Early Career Researcher, The University of Sydney, Faculty of Science, School of Mathematics and Statistics
Topic: StabMap: Mosaic single cell data integration using non-overlapping features
Recording: Click here
Speaker: Simon Norrelykke, Ph.D., Director of Image Analysis, Department of Systems Biology, HMS
Topic: Emerging Tools and Technologies in Bioimage Analysis and Processing
Recording: Not available
Speaker: Benjamin M. Gyori, Ph.D., Research Fellow, Director of Machine-assisted Modeling & Analysis, Laboratory of Systems Pharmacology, HMS
Topic: Large-scale biomedical knowledge assembly for hypothesis generation and human-machine interaction
Recording: Not available
Speaker: Jeremy Manning, PhD, Assistant Professor of Psychological & Brain Sciences, Dartmouth College
Topic: Geometric approaches to understanding the neural basis of human thought
Recording: Not available
September 2022 Seminars
Speaker: Antonios Lioutas, Ph.D., Research Associate in Genetics, Harvard Medical School
Topic: Super-resolution imaging of the human genome
Recording: Not available
Speaker(s): Laurent Gatto, PhD, Associate Professor of Bioinformatics, UCLouvain, Belgium and Charlotte Soneson, PhD, Research Associate, FMI, Switzerland
Topic: The Bioconductor Education Committee and Its Initiatives
Related link: Bioconductor Education and Training
Recording: Not available
June 2022 Seminars
Speaker: Dan Triviglia, Director, DBMI IT Core, HMS
Title: Cloud Computing at HMS-DBMI
Recording: Click here
Speaker: Catia Pesquita, PhD, Assistant Professor at LASIGE, Faculty of Sciences University of Lisbon and Vice President of BioData.pt
Title: Biomedical Semantic Similarity for Humans and Machines
Recording: Click here
Speaker: William “Gaby” Rodriguez, PhD, Computational Research Consultant & Amir Karger, PhD, Associate Director of Research Computing
Title: The New Web Portal for HMS’ O2 Cluster: Simplifying the Experience of High Performance Computing with Open OnDemand
Recording: Click here
May 2022 Seminars
Speaker: Katy Börner, PhD, Victor H. Yngve Distinguished Professor of Intelligent Systems Engineering, Indiana University
Title: Human Reference Atlas Construction and Usage
Recording: Click here
Speaker: Robert Hoehndorf, PhD, King Abdullah University of Science and Technology
Title: Semantic Similarity and Machine Learning with Ontologies
Recording: Click here
Speaker: Jaclyn Mallard, PhD, CCB Center Administrator
Title: Filling in the Gaps: CCB’s Role in Quantitative Education at HMS
Recording: Click here
April 2022 Seminars
Speaker: Fabian Theis, PhD, Institute Director andResearch Group Leaderand Giovanni Palla, PhD Candidate at Helmholtz Munich
Title: Squidpy: A Scalable Framework for Spatial Omics Analysis
Recording: Click here
Speaker: Vincent Carey, PhD, Professor of Medicine at HMS and Associate Biostatistician at Channing Laboratory, Brigham And Women’s Hospital
Title: Open Computational eCosystems for Modern Genomics
Recording: Click here
Speaker: Artem Sokolov, PhD, HMS DBMI
Title: A Scalable, Modular Image-processing Pipeline for Multiplexed Tissue Imaging
Recording: Click here
Speaker: Constantin Ahlmann-Eltze, PhD student at the EMBL Heidelberg in the Huber group, European Molecular Biology Laboratory, Heidelberg, Germany
Title: Transformation and Preprocessing of Single-Cell RNA-Seq Data
Recording: Click here
March 2022 Seminars
Speaker: Nitesh Turaga, PhD, Scientist in the Department of Data Science, at the Dana Farber Cancer Institute of Harvard Medical School and a Core Team member at the Bioconductor Project, working at the intersection of Data Science, Computational biology, and Software Engineering
Title: Containerized and Parallel Computation in R/Bioconductor
Recording: N/A
Speaker: Paul Macklin, PhD, Associate Professor and Director of Undergraduate Studies in the Department of Intelligent Systems Engineering at Indiana University
Title: The Human Body at Cellular Resolution: the NIH Human Biomolecular Atlas Program
Recording: Click here
Speaker: Nils Eling, PhD, Postdoctoral Researcher at the Bodenmiller Laboratory at the University of Zurich
Title: Visualization and Analysis of Highly Multiplexed Imaging Data
Recording: Click here
February 2022 Seminars
Speaker: Sean Maden, Ph.D candidate in Computational Biology. Biomedical Engineering Dept (OHSU)
Title: Human Methylome Variation Across Infinium 450K Data on the Gene Expression Omnibus
Recording: N/A
Speaker: Marinka Zitnik, PhD, Assistant Professor of Biomedical Informatics, Harvard Medical School
Title: Leveraging the Cell Ontology to Classify Unseen Cell Types
Recording: Click here
Speaker: Levi Waldron, PhD, Associate Professor of Biostatistics at CUNY Graduate School of Public Health and Health Policy
Title: Curated Single Cell Multimodal Landmark Datasets for R/Bioconductor
Recording: Click Here
January 2022 Seminars
Speaker(s): Allon Klein, PhD, Assistant Professor of Systems Biology at HMS and Sahand Hormoz, PhD, Assistant Professor of Systems Biology at HMS
Title: Atlas of Human Population Variation in Bone Marrow Hematopoiesis
Recording: N/A
Date: January 31st, 2022
Speaker(s): Helena Crowell, PhD Candidate at University of Zurich and Dario Righelli, Assistant Researcher at Department of Statistics,University of Padua
Title: Orchestrating Spatially Resolved Transcriptomics Analysis with Bioconductor
Recording: Click here