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A Librarian from Singapore Management University. Into social media, bibliometrics, library technology and above all libraries.

Chinese translated version available here

Some Discovery Citation Indexes in 2020

In terms of cross disciplinary citation indexes that are used for discovery, everyone knows of the two incumbants — Web of Science and Scopus(2004). Joined by the large web scale Google Scholar (2004), these three reigned as the “Big 3” of citation indexes for roughly a decade more or less unchallenged.


Tired of entering keywords and getting thousands of hits and not sure where to start your literature review? Or having the opposite problem and entering a keyword and getting few relevant results?


In my last post, I talked about the state of retractions in the literature and how so much of the literature includes authors who probably unknowingly cites retracted works


It’s 2020 and we are settling down into and getting used to life where COVID is the norm. What new research tools have emerged that are worth checking out?

  1. Further developments in scite (I) — more advanced search options
  2. scite visualization trees and scite reference check
  3. Semantic Scholar improves cited by screen
  4. More citation mapping tools — Connected Papers , Local Citation Network , Cocites , Papergraph
  5. 2D Search expands…


Starting your research in a totally new area and unsure where to start? Wouldn’t it be nice if someone had done the work for you already, surveying the research landscape of papers of importance and interest in the area you are interested in and even commenting and evaluating on the results?


Authors: Aaron Tay (SMU Libraries, Singapore Management University), Bianca Kramer (Utrecht University Library), Ludo Waltman (Centre for Science and Technology Studies, Leiden University)


TL;DR — This article shows you a reliable search strategy that you can use in Lens.org to find meta-analysis, systematic reviews, review articles of topics you are interested in regardless of your discipline to help kick start your research. I covered the rationale for doing this with Lens.org earlier, in this article, I will show an easy way to adept a well tuned search strategy to your topic of interest in 5 minute flat using 2D Search (a free tool that now supports Lens.org).


It’s a new year, and here are more research tools to keep your eye out on. Most of the items are the list are either brand new, or have interesting new features to look out for.

1. Semantic Scholar is enhanced with Microsoft academic graph data and now covers more than just Computer Science and Life Sciences. JISC CORE has done the same with MAG, Crossref, Pubmed.

Semantic Scholar isn’t new , but until recently it only covered limited domains. But with the recent tie up with Microsoft Academic they now have increased their coverage from 40 million records to 175 million records , covering almost every domain.

Why consider Semantic Scholar as your search tool

Semantic Scholar has the name denotes, tries to use Machine Learning to derive semantic…


TL;DR — This articles shows you a reliable search strategy that you can use in Lens.org to find meta-analysis, systematic reviews, review articles of topics you are interested in regardless of your discipline to help kick start your research. I also do a comparison of this search strategy in Lens.org against Pubmed and show that this search strategy yields similar results, giving some assurance on the reliabilty of this method.

Aaron Tay

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