29 November 2010
Academics bemoan Google's homogenization of information
by Kate Melville
Google's search algorithms are increasingly being cited in mainstream media for the wrong reasons and now a new research paper is questioning the suitability of Google's academic search offerings. Google Scholar's monopolization of online academic search is leading to less information diversity, say European scientists in the International Journal of Cultural Studies. They warn that information literacy must be enriched with analytical skills and critical judgment, and the production of scientific knowledge is "way too important to leave to companies and intelligent machines."
José van Dijck, of the University of Amsterdam, argues that search engines in general, and Google Scholar in particular, have become significant co-producers of academic knowledge, rather than neutral tools. Google Scholar claims to search diverse sources from one interface to find information in a range of formats (articles, theses, books, abstracts or court opinions), but van Dijck says that how these sources are chosen and ranked is not transparent - a situation that leaves her uneasy. "Academic users need to raise their awareness of exactly how Google Scholar operates, to ensure it is quality and not just popularity that drives its selection of sources," she noted.
One of the key points about search engines' ranking and profiling systems, according to van Dijck, is that these are not open to the same rules as traditional library scholarship methods in the public domain. "Automated search systems developed by commercial Internet giants like Google tap into public values scaffolding the library system and yet, when looking beneath this surface, core values such as transparency and openness are hard to find," she explains.
Inexperienced users tend to trust proprietary engines as neutral knowledge mediators, she argues. In fact engine operators use meta-data to interpret collective profiles of groups of searchers. At first sight, Google Scholar adopts one of the basic academic values - citation analysis - by using algorithmic web spiders to create indexes to a vast web of academic materials. However, Google Scholar's algorithm works on the basis of quantitative citation analysis. Scholars differ in that they rank citations according to their relative status and weight in their specific professional disciplines.
Ranking information through Google Scholar is quite similar to a Google Search: it ranks sources on the basis of popularity rather than truth-value or relevance. Articles with more links to them will beat higher quality research that is not picked up by the Google Scholar algorithm. This issue is further complicated because certain institutions refuse access to their databases. Google will not reveal a full list of databases it does cover, or the frequency of its updates to indicate a timescale. Users, complains van Dijck, are left in the dark about the search's scope and timeliness.
Van Dijck's scrutiny of the construction of academic knowledge through the coded dynamics of the search engine draw on sociologist Bruno Latour's actor network theory, and further work by Manuel Castells. In actor network theory, search engines are not simply objects, but are part of a human-technology networks involved in knowledge production. Castells suggests "unwiring" network activity to look more closely at the complex power relationships of digital networks, before mindfully rewiring it.
Van Dijck concludes by calling for enriched information literacy incorporating a basic understanding of the economic, political and socio-cultural dimensions of search engines. "Without a basic understanding of network architecture, the dynamics of network connections and their intersections, it is hard to grasp the social, legal, cultural and economic implications of search engines," she says. "If Google has become the central nervous system in the production of knowledge, we need to know as much as possible about its wiring."
Source: International Journal of Cultural Studies