Related Experiment Video
Updated: Feb 3, 2026

07:12
Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time
Published on: July 1, 2014
12.7K
Selection of Informative Examples in Chemogenomic Datasets.
1Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA. reker@mit.edu.
Methods in Molecular Biology (Clifton, N.J.)
|October 19, 2018
Summary
Automated adaptive selection of training data for chemogenomic modeling can create smaller, efficient datasets. These curated sets maintain predictive performance, challenging the need for extensive "big data" in drug discovery.
Area of Science:
- Chemogenomics
- Cheminformatics
- Machine Learning in Pharmacology
Background:
- Large chemogenomic datasets are crucial for developing ligand-target interaction models in drug discovery.
- Current machine learning approaches often prioritize complex models, sacrificing training efficiency and interpretability.
Purpose of the Study:
- To investigate the efficacy of automated adaptive selection for training chemogenomic models.
- To demonstrate that smaller, curated datasets can achieve comparable predictive performance to large datasets.
Main Methods:
- Implementing an iterative chemogenomic selection technique for training data.
- Developing protocols for model construction, updating, and evaluation.
- Analyzing the iterative process of model building.
Main Results:
- Automated selection yields significantly smaller training sets compared to using all available data.
- Models built on selected data retain prediction performance comparable to those trained on large datasets.
- This approach enhances training efficiency and potentially interpretability.
Conclusions:
- "Big data" is not always necessary for effective chemogenomic modeling.
- Automated adaptive data selection offers a more efficient alternative for building predictive ligand-target models.
- This method supports robust pharmacological research with reduced computational burden.
Related Concept Videos
Newton's Third Law: Examples
27.1K
Newton's third law states that every action has an equal and opposite reaction. Consider a swimmer pushing off the side of a pool. They push against the wall of the pool with their feet and accelerate in the direction opposite to that of their push. This occurs because the wall exerts an equal and opposite force on the swimmer. Here, the forces do not cancel out each other as they are acting on different systems. In this case, there are two systems: the swimmer and the wall. If we select...
27.1K
Free Body Diagrams: Examples
14.7K
Solving problems that involve forces is easy using free-body diagrams. A free-body diagram is a sketch showing all the external forces that are acting on an object or system. The object or system is represented by a single isolated point (or free body). Only those forces acting on it that originate outside of the object or system—the external forces—are shown. The forces are represented by vectors extending outward from the free body. Imagine a person sitting on a chair. Here, the...
14.7K
What is Natural Selection?
129.2K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
129.2K
Antibiotic Selection
59.9K
Overview
59.9K
Types of Selection
45.0K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
45.0K
Frequency-dependent Selection
24.1K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
24.1K

