On the delusiveness of adopting a common space for modeling IR objects: Are queries documents?

Bollmann-Sdorra, Peter; Raghavan, Vijay V.

doi:10.1002/(sici)1097-4571(199312)44:10<579::aid-asi3>3.0.co;2-b

Cited by 17 publications

(9 citation statements)

References 15 publications

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“…Second, it is only helpful for selecting indexing terms, but not for the weighting of terms. Other criticisms about the vector-space model can be found in (Bollmann-Sdorra and Raghavan, 1993;Dominich, 2002).…”

Section: Similarity-based Modelsmentioning

confidence: 99%

A risk minimization framework for information retrieval

Zhai

Lafferty

2006

Information Processing & Management

120

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Section: Similarity-based Modelsmentioning

confidence: 99%

A risk minimization framework for information retrieval

Zhai

Lafferty

2006

Information Processing & Management

120

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“…In a previous article, we (Bollmann-Sdorra & Raghavan, 1993) showed by a number of examples, that properties of a document space can be very different from those of the associated query space. In contrast, in this article, we formally establish that, with respect to the property of term independence, requiring query and document spaces to be identical has undesirable consequences.…”

Section: Discussionmentioning

confidence: 99%

“…This view was challenged recently by Bollmann-Sdorra and Raghavan (1993) by showing that documents and queries behave very differently. To this end, preference relations and evaluation measures, which imply preferences on queries, were exploited.…”

Section: Introductionmentioning

confidence: 99%

On the necessity of term dependence in a query space for weighted retrieval

Bollmann-Sdorra

Raghavan

1998

J. Am. Soc. Inf. Sci.

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In recent years, in the context of the vector space model, the view, held by many researchers, that documents, queries, terms, etc., are all elements of a common space has been challenged (Bollmann‐Sdorra & Raghavan, 1993). In particular, it was noted that term independence has to be investigated in the context of user preferences and it was shown, through counterexamples, that term independence can hold in the document space, but not in the query space and vice versa. In this article, we continue the investigation of query and document spaces with respect to the property of term independence. We prove, under realistic assumptions, that requiring term independence to hold in the query space is inconsistent with the goal of achieving better performance by means of weighted retrieval. The result that term independence in the query space is undesirable is obtained without making any assumption about whether or not the property of term independence holds in the document space. The results of this article reinforce our position that the properties of document and query spaces must be investigated separately, since the document and query spaces do not necessarily have the same properties.

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“…Although this concept was used more like a metaphor, Bollmann-Sdorra and Raghavan (1993) showed that using linear spaces generated some difficulties for basic concepts of IR, but at the same time their work drew attention to the fact that the concept of a space, provided it is used with enough care, is able to render structural properties of basic IR entities: these being document, query, relevance (Egghe and Rousseau 1998, Bollmann-Sdorra and Raghavan 1998, Dominich, 1999, 2001. More recently a unified approach to representing basic IR concepts in a linear space is achieved by modelling basic IR concepts using a Hilbert space in a Quantum Mechanical manner (van Rijsbergen 2004).…”

Section: Introductionmentioning

confidence: 92%