Changelog
Timeline
2024
November 27
Multicenter evaluation of Fourier transform infrared (FTIR) spectroscopy as a first-line typing tool for carbapenemase-producing Klebsiella pneumoniae in clinical settings
https://doi.org/10.1128/jcm.01122-24
July 5
Clover MSDAS v1.10.0 Major Update
- Identification Routine is now available. It is a new user interface to simplify the identification and the use of all prediction models available for clinical routine.
- Easily share your home-built prediction models across all users in your organization.
- SMOTE algorithm is now available. Use it when training prediction models to mitigate issues related with unbalanced datasets. Synthetic samples will be added to complete the smallest categories.
- PDF reports can now be generated in:
- Identification modules
- Validation modules
- Prediction models training
- Home Screen:
- Starred (favourites) peak matrices are now displayed on Home screen.
- Experiment & Peak matrix Screens
- Improvements in the UI design of algorithms and categories.
April 15
Clover MSDAS v1.8.9
- KMeans: First version of K-Means Algorithm is now available for all users
- Identification: A slider with prediction confidence cut-off values to Identification results view is added. Cut-off can be edited and saved
- Prediction Models improvements:
- First version of re-train prediction models with new samples is now available for premium users
- Now optimizaction information, if available, is displayed
- Users can now uploading zip files with open format files in it. Folder hierarchy is kept
- Collection: Add editor options to Usage Notes and Abstract fields
- Training: Youden Index is now available in ROC curve in training.
February 15
Clover MSDAS v1.8.4
- Ribopeaks: First version of Ribopeaks integration in experiment detail view
- Alignment: Now spectra can be aligned by selecting reference peaks
- Validation: Users now can compare one category versus the others to obtain all metrics
- Correlation Analysis: Heatmap is now included in pairwise mode
- Biomarker Analysis: Wilcoxon-Mann-Whitney test is now available
- Global Prediction Bases are now available for Premium MALDI users.
January 24
Clover MSDAS v1.8 Experiment Pipeline
- Experiment new workflow: First version of the experiment view redesign project, which includes a data flow pipeline for selecting the three main processes before the peak matrix (Preprocessing, Outlier, and Train/Test set splitting).
- Outlier: With the new experiment workflow, selected outlier samples will be skipped in subsequent actions.
January 10
Clover MSDAS v1.7.2 Task list update
- Task list: First version of Task list functionality to check the state of the user tasks in the last 2 days
- Antibiotic Analysis Detection Module: Enabled test module for new Imipenen values
- Studies: Now studies can be archived
- Reproducibility tests: ANOVA results are now displayed for analysis with more than two categories
- Premium/Basic accounts: Now user can distinguish between MALDI and FTIR premium when accesing to the different modules
- Correlation Analysis: User now can export a unique excel file with the results of all groups
2023
December 7
Clover MSDAS v1.7.1 Antibiotic Analysis Detection Module
- Antibiotic Analysis Detection
- Module enable for all Premium Users
- Works with or without multicenter projects
- Mabritec Central:
- Mabritec Central is now available for all Premium Users
- Mabritec Central has now its own box in Bioanalsysis screen
- Average Spectra from Replicates: Advanced mode is now available. Now samples with the same name but in different folders are not mixed when grouping replicates.
- Performance: Improvements in “preprocessing” steps and “peak matrix generation” steps performance
November 9
Clover MSDAS v1.7 Major Update
- FTIR: “Extended Polysaccharide” (1300-800) region is now available as preset in FTIR mode
- Correlation analysis: Correlation analysis is now available with MALDI-TOF data
- Train/Test datasets:
- New method for splitting data into train and test datasets is added
- Info of splitted sets can be download as csv
- Category table info is now displayed at experiment detail view
- When params have no changed, a button is now available to resplit the data into two different datasets
- Find Peaks Algorithm: Dynamic Threshold algorithm is now available
- Biomarker Analysis:
- New option to discriminate one category from the rest in ROC analysis is now available
- Now users can now directly create a new peak matrix in a new step in Biomarker Analsyis with selected peaks
- Number of samples of each category is now displayed
- Validation: Now samples categories in categories step of the validation process are now recognized automatically
- Dendrogram: A toggle button is added to show/hid the cut-off value
- SVM: Poly Kernel option is now available
- Correlation/Distance Heatmap: Now color is from blut to red space. Gaps are added between cells
September 18
Discrimination between hypervirulent and non-hypervirulent ribotypes of Clostridioides difficile by MALDI-TOF mass spectrometry and machine learning
September 5
August 4
Clover MSDAS v1.6.6 Minor Update
- Hierarchical Clustering:
- Cut-off value can be now calculated in automatic or optimal mode.
- Features dendrogram is now available when you build a matrix with peaks.
- Outlier detection:
- A table with summarized analysis is now added.
- User can now modify the STD value limits.
- Samples can now be marked and saved as outliers within an experiment.
July 19
Rapid Discrimination of Pseudomonas aeruginosa ST175 Isolates Involved in a Nosocomial Outbreak Using MALDI-TOF Mass Spectrometry and FTIR Spectroscopy Coupled with Machine Learning
https://doi.org/10.1155/2023/8649429
June 21
Clover MSDAS v1.6 Major Hierarchical Clustering & Dendrogram Update
- Hierarchical Clustering & Dendrogram
- PCA at HC: Now PCA data is displayed when retrieving HC
- Size plot and graphs can be now edited by the user
- Dendrogram: Color squares can be now edited by the user
- Cut-off: User can set a custom cutoff value to detect the clusters
- Summary Table: A new table is displayed summarizing the content of the detected cluster and how the actual categories/classes are distributed
- Categories as Dendrogram Metadata: One or several columns can be displayed next to the dendrogram. Each column has one coloured rectangle per spectrum. Each rectangle color matches one of the actual categories/classes labelled for the spectrum. This way, it is easy to visually check the detected clusters (unsupervised) and the actual clusters (supervised categories/classes)
- Dual Tech: MALDI & FTIR
- Now you can add your preferred technology at SignUp view
- At User Profile section you can change now your preferred technology
- Filter in Study List so MALDI-TOF or FTIR can be selected
- Antibiotic Hydrolysis Analysis
- Support for Meropenem
June 6
Clover Garden Repository release
May 19
Clover MSDAS v1.5 Major Update: Features & Improvements
- Premium users mode is now activated. All module and features are now unlimited for premium users.
- FT-IR data.
- FTIR Quality Control Module: First version of QC test for FTIR data.
- Inclusion of new default ranges and internal improvements in range selection with FTIR data.
- FTIR Reproducibility Module: First Version of reproducibility Analysis for FTIR data.
- Algorithms.
- Balanced Accuracy metric at confusion matrix is now calculated and displayed in confusion matrices.
- PCA: Edit size, color and shape of displayed dots.
- Analysis.
- t-test is now available in biomarker analysis as univariate analysis.
- MALDI Biomarker Analysis Module have been redesigned.
- SNP pairwise distance heatmap: First version of Single Nucleotide Polymorphism heatmap.
May 18
Direct Detection of Carbapenemase-Producing Klebsiella pneumoniae by MALDI-TOF Analysis of Full Spectra Applying Machine Learning
https://doi.org/10.1128/jcm.01751-22
April 4
Automatic discrimination of species within the Enterobacter cloacae complex using MALDI-TOF Mass Spectrometry and supervised algorithms
January 30
Clover MSDAS v1.4 FTIR Upgrade: Features & Improvements
- Armonisation between FTIR workflow and Clover MSDAS have been updated.
- Rubberband algorithm has been added as Baseline correction algorithm.
- New normalization algorithms:
- Vector Normalization
- Amide I Normalization
- Amide II Normalization
- Predefined ranges for absorbance mass filtering:
- Membrane lipids [3000-2800]
- Proteins [1800-1500]
- Polysaccharides [1200-900]
January 5
Identification of Mycobacterium abscessus Subspecies by MALDI-TOF Mass Spectrometry and Machine Learning
https://doi.org/10.1128/jcm.01110-22
2022
November 28
Clover MSDAS v1.3 Features & Improvements
- Outliers Detection Module first version release. PCA Reconstruction and Spectra Correlation analysis have been implemented.
- Shapley Values plot includes now a bar plot to show the shapley values mean.
- New file size upload limit is upgrade to 300MB.
- Validation & Identification modules run now asynchronously. You can leave the screen and recover the result later.
- Hyperparameters at classification can be now choosen manually or calculated via autotune algorithm.
- ROC and Precision-Recall curves displayed up to 4 decimals for AUC values and can be downloaded in CSV format.
- Error Rate have been added as a metric.
- LightGBM have been adjusted on how hyperparameters are optimized.
- In the ROC curve table at Biomarker Analysis module, you can click now on the table rows for selecting masses. Once they are selected, a peak matrix can be automatically generated by using those masses.
Contact Information | Clover Bioanalytical Software
Phone Number
(34) 958 991 543
Office
- Edif. Centro de Empresas PTS.
- Av. del Conocimiento, 41
- 18016 Granada, Spain