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A group by a cliff
Four women and one man are standing on a cliff that overlooks a valley. On back: Lee, Va, Madison, Elizabeth; Jimenez Maggard Studio, Ashland, Ky
A man and a woman by a ledge
A man and woman are standing on a cliff next to a railing. On front: Jimenez Maggard Studio, Ashland, KY
A woman by a cliff
A woman, wearing a dark dress and hat, is standing on a cliff overlooking a valley. On back: Jimenez Maggard Studio, Ashland, KY
Two women
Two women are standing on the walkway to a house with a porch and bushes. On front: The Maggard Studio Amatuer and Commercial Department, Ashland, KY
A group of women
A group of fifteen women, many in hats, are gathered on the walkway of a house. On front: Jimenez Maggard Studio, Ashland, KY
Two women by a car
Two women, wearing coats, are sitting on the running board of a car on the side of the road. On back: Jimenez Maggard Studio, Ashland, KY
A group of girls and boys
A large group of girls and boys are lined up in uniform with knit caps. On back: Jimenez Maggard Studio, Ashland, KY
A group gathers along a street
People are gathered along a cobblestone street, and a few women are pushing strollers. On front: Jimenez Maggard Studio, Ashland, KY
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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