News

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 clusterng 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