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PAMI
2008
172views more  PAMI 2008»
13 years 7 months ago
A Theory Of Frequency Domain Invariants: Spherical Harmonic Identities for BRDF/Lighting Transfer and Image Consistency
This paper develops a theory of frequency domain invariants in computer vision. We derive novel identities using spherical harmonics, which are the angular frequency domain analog ...
Dhruv Mahajan, Ravi Ramamoorthi, Brian Curless
INEX
2004
Springer
14 years 24 days ago
The Utrecht Blend: Basic Ingredients for an XML Retrieval System
Exploiting the structure of a document allows for more powerful information retrieval techniques. In this article a basic approach is discussed for the retrieval of XML document f...
Roelof van Zwol, Frans Wiering, Virginia Dignum
JCDL
2006
ACM
101views Education» more  JCDL 2006»
14 years 1 months ago
Search engine driven author disambiguation
In scholarly digital libraries, author disambiguation is an important task that attributes a scholarly work with specific authors. This is critical when individuals share the sam...
Yee Fan Tan, Min-Yen Kan, Dongwon Lee
SIGIR
2011
ACM
12 years 10 months ago
When documents are very long, BM25 fails!
We reveal that the Okapi BM25 retrieval function tends to overly penalize very long documents. To address this problem, we present a simple yet effective extension of BM25, namel...
Yuanhua Lv, ChengXiang Zhai
ACMDIS
2008
ACM
13 years 9 months ago
Evaluating the effectiveness of term frequency histograms for supporting interactive web search tasks
Throughout many of the different types of Web searches people perform, the primary tasks are to first craft a query that effectively captures their information needs, and then eva...
Orland Hoeber, Xue Dong Yang