News

bibliometrix v2.2.0 (Release date: 2019-05-02)

New functionality: *biblioshiny: new threeFieldsPlot in the Dataset tab *added the function threeFieldsPlot *Speed improvements in several functions

bibliometrix v2.1.2 (Release date: 2019-03-14)

New functionality: *biblioshiny: new dendrogram plot in factorial analysis (Conceptual Structure) *biblioshiny: added the number of cluster argument in factorial analysis (Conceptual Structure) *biblioshiny: added Most Cited Sources (from References) in Sources *biblioshiny: added disambiguation parameter in affiliation *Speed improvements in several functions

bibliometrix v2.1.1 (Release date: 2019-02-07)

New functionality:

• biblioshiny: all plots are now dynamic (using plot.ly or VisNetwork)
• biblioshiny: added new plots in dataset menu
• biblioshiny: Menu "Conceptual Structure" has been re-organized
• the function thematicMap has been completely rewritten. Now it automatically calculate the network and plots the map.

bibliometrix v2.1.0 (Release date: 2019-01-06)

New functionality:

• biblioshiny networks are now plotted using VisNetwork package.
• biblioshiny menu have been completely rewritten. Now, descriptive analyses are organized by the unit of analysis
• Several descriptive plots and tables have been added
• Added the new funtion authorProdOverTime to calclulate and plot the productivity over the time of the top authors
• Added "measure" parameter in plotThematicEvolution
• Added the new function bib2df. It give the possibility to import data from a "generic" bibtex file format (i.e. Zotero, JabRef, etc.)
• Added the possibility to calculate H-index for sources

Changes:

• Completely rewritten the importing function from bibtex files
• Solved an issue in dominance(). Now Dominance factor in correctly calculated
• Solved sevaral issues in importing functions due to inconsistence in WOS/SCOPUS web-exporting procedures

bibliometrix v2.0.2 (Release date: 2018-10-26)

New functionality:

• Added Country scientific production in descriptive analysis (biblioshiny)
• Added country collaboration map layout in biblioshiny
• Added "opacity" parameter in networkPlot
• Added "field" parameter in thematicMap
• Added "field" parameter in thematicEvolution
• Added bradford() function to identify core sources
• Added law analyses (bradford and lotka) in biblioshiny
• Added "stat" parameter in networkStat()
• Added "type" parameter in networkStat()
• Added Multidimensional Scaling Analysis in conceptualStructure()
• Added "shortlabel" parameter in bibloNetwork()

Changes:

• Now plots show lowercase labels
• networkStat() now allows to calculate single centrality indices (using parameters stat and type)
• Improved the optimal number of clusters in conceputalStructure(). Now the wss criterium is used

bibliometrix v2.0.1 (Release date: 2018-10-09)

New functionality:

• added the possibility to load Rdata files in biblioshiny()
• added Thematic Evolution to biblioshiny()
• added the function plotThematicEvolution() to draw thematic evolution
• added Thematic Map to biblioshiny()
• added TreeMap plot to biblioshiny()
• added Word Dynamic Analysis biblioshiny()
• added Source Dynamic Analysis to biblioshiny()
• added the function rpys() to perform the Reference Publication Year Spectroscopy
• added the function sourceGrowth to calculate source publication time series
• new white layout for biblioshiny()

bibliometrix v2.0.0 (Release date: 2018-09-03)

New functionality:

• added biblioshiny(): A shiny app for bibliometrix R-package

bibliometrix v1.9.4 (Release date: 2018-06-24)

New functionality:

• Added a new, and more readable, historiograph plot in histPlot()
• Added function networkStat() to perform the descriptive analysis of network graph characteristics
• Added the generic function summary() to summarize the results of the networkStat() function
• Added a new section "the descriptive analysis of network graph characteristics" in the vignettes
• Added the possibility to use scopus collections in histNetwork() function
• Added the possibility, in histNetwork() function, to set the minimum number of citations for the documents included in the analysis
• Added the argument aff.disamb in metaTagExtraction()

Changes:

• Solved the compatibility issue with the new version of rscopus package
• Minor changes in argument list of histNetwork() and histPlot()
• Improved plot layout and colors in networkPlot()
• Solved the issue regarding the older versions of utils::promptPackage()
• Solved the issue regarding missing vertex labels in VOSviewer visualization

bibliometrix v1.9.3 (Release date: 2018-05-15)

New functionality:

• Added the possibility to import collections from COCHRANE Database in convert2df()
• Completely rewritten concepualStructure() function. Now it performs CA and MCA method and plots factorial maps of documents.
• Added binary argument in cocMatrix(). It allows to build up a document x attribute matrix using both binary and full counting

bibliometrix v1.9.2 (Release date: 2018-03-28)

Changes:

• Solved the issue https://stat.ethz.ch/pipermail/r-devel/2018-March/075737.html regarding the package Matrix

bibliometrix v1.9.1 (Release date: 2018-03-14)

Changes:

• Minor fixes in several functions

bibliometrix v1.9 (Release date: 2018-01-20)

New functionality:

• added the possibility to import collections from MedLine/PubMed in convert2df()
• added co-occurrence normalization in networkPlot() Changes:
• improved speed and efficiency in citation analysis (histNetwork(), localCitations(), metaTagExtraction())
• improved function histNetwork()
• improved function metaTagExtraction()

bibliometrix v1.8 (Release date: 2017-08-30)

Changes:

• improved historiograph algorithm in histNetwork()
• improved network layout in histPlot()
• added new SR field in the bibliographic dataframe
• improved importing functions

bibliometrix v1.7 (Release date: 2017-07-07)

New functionality:

• added new clustering algorithms into networkPlot()
• added argument 'halo' in networkPlot() to color cluster groups
• added function normalizeSimilarity() to calculate some probabilistic and set-theoretic similarity measures
• added function thematicMap() to create a thematic map based on co-word network analysis and clustering
• added function thematicEvolution() to create an Evolution thematic map based on co-word network analysis and clustering.

Changes:

• removed function couplingSimilarity()

bibliometrix v1.6 (Release date: 2017-05-09)

New functionality:

• added two datasets isiCollection and scopusCollection
• mergeDbSources() merges bibliographic data frames from SCOPUS and ISI WOS
• duplicatedMatching() searches duplicated records in a bibliographic database using the generalized Levenshtein (edit) distance
• dfMerge() removed from package
• removed dipendence from dplyr package
• added possibility to merge synonyms using termExtraction()

Changes:

• Minor fixes in several functions
• Minor corrections in vignettes and documentation

bibliometrix v1.5 (Release date: 2017-03-15)

New functionality:

• retrievalByAuthorID() gets Author Content on SCOPUS by ID
• idByAuthor() gets Complete Author Information and ID from Scopus
• Hindex() introduced the argument years

Changes:

• Minor fixes in several functions
• Minor corrections in vignettes and documentation

bibliometrix v1.4 (Release date: 2017-01-24)

New functionality:

• concepualStructure() creates and plots conceptual structure map of a scientific field
• histPlot() plots historical co-citation network
• networkPlot() plots Bibliographic networks
• readFiles() loads a sequence of ISI or SCOPUS Export files into a large character object

Changes:

• Minor fixes in metaTagExtraction() function
• Minor fixes in convert2df() function
• Minor corrections in vignettes and documentation

bibliometrix v1.3 (Release date: 2016-11-17)

New functionality:

• termExtraction() extracts terms from a textual field (abstract, title, author's keywords, etc.) of a bibliographic data frame. Now it integrates Porter's stemming algorithm and term extraction procedure for English, French, German, Italian and Spanish textual contents.

bibliometrix v1.2 (Release date: 2016-10-18)

New functionality:

• keywordAssoc() associates authors' keywords to keywords plus
• keywordGrowth() calculates yearly cumulative occurrences of top keywords.
• termExtraction() extracts terms from a textual field (abstract, title, author's keywords, etc.) of a bibliographic data frame.

Changes:

• New statistics in summary() function
• Minor fixes in convert2df() function
• Minor corrections in vignettes and documentation

bibliometrix v1.1 (Release date: 2016-09-07)

Changes:

• Minor fixes in convert2df() function
• Minor corrections in vignettes and documentation

bibliometrix v1.0 (Release date: 2016-06-28)

New functionality:

• histNetwork() creates a historical co-citation network from a bibliographic data frame.

Changes:

• Minor fixes in cocMatrix() function
• Minor corrections in vignettes and documentation

bibliometrix v0.8 (Release date: 2016-06-10)

New functionality:

• Hindex() calculates the authors' h-index and its variants (g-index, m-index) in a a bibliographic collection.

New data:

• garfield dataset

Changes:

• Minor corrections in vignettes and documentation

bibliometrix v0.7 (Release date: 2016-06-04)

New functionality:

• timeslice() calculates Jaccard and Salton similarity indices among manuscripts of a coupling network
• dfMerge() merges two bibliographic data frames deleting duplicate manuscripts.
• metaTagExtraction() now extracts also university of affiliation for each co-author

Changes:

• Minor fixes in metaTagExtraction() function
• Minor corrections in vignettes and documentation

bibliometrix v0.6 (Release date: 2016-05-30)

New functionality:

• couplingSimilarity() calculates Jaccard and Salton similarity indices among manuscripts of a coupling network

Changes:

• Minor corrections in vignettes and documentation

bibliometrix v0.5 (Release date: 2016-05-25)

New functionality:

• localCitations() generates the frequency table of the most cited local authors.

Changes:

• Minor fixes in citations() function
• Minor corrections in vignettes and documentation

bibliometrix v0.4 (Release date: 2016-05-23)

Changes:

• Minor fixes in citations() function

bibliometrix v0.3 (Release date: 2016-05-21)

Changes:

• Minor corrections in vignettes and documentation

bibliometrix v0.2 (Release date: 2016-05-19)

Changes:

• Additional vignettes and documentation

New functionality:

• citations() generates the frequency table of the most cited references or the most cited first authors (of references).
• lotka() now performs Kolmogorov-Smirnoff two sample test among observed and theoretical Lotka's distributions.

Bug Fixes:

• Minor fixes in importing routines and summary function.

Reference manual