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CIKM
2009
Springer
16 years 29 days ago
The impact of document structure on keyphrase extraction
Keyphrases are short phrases that reflect the main topic of a document. Because manually annotating documents with keyphrases is a time-consuming process, several automatic appro...
Katja Hofmann, Manos Tsagkias, Edgar Meij, Maarten...
CIVR
2009
Springer
145views Image Analysis» more  CIVR 2009»
16 years 29 days ago
Jointly optimising relevance and diversity in image retrieval
In this paper we present a method to jointly optimise the relevance and the diversity of the results in image retrieval. Without considering diversity, image retrieval systems oft...
Thomas Deselaers, Tobias Gass, Philippe Dreuw, Her...
COCO
2009
Springer
121views Algorithms» more  COCO 2009»
16 years 29 days ago
Lower Bounds on Quantum Multiparty Communication Complexity
A major open question in communication complexity is if randomized and quantum communication are polynomially related for all total functions. So far, no gap larger than a power o...
Troy Lee, Gideon Schechtman, Adi Shraibman
COCO
2009
Springer
155views Algorithms» more  COCO 2009»
16 years 29 days ago
Weak Derandomization of Weak Algorithms: Explicit Versions of Yao's Lemma
—A simple averaging argument shows that given a randomized algorithm A and a function f such that for every input x, Pr[A(x) = f(x)] ≥ 1−ρ (where the probability is over the...
Ronen Shaltiel
COMPLEX
2009
Springer
16 years 29 days ago
Return Intervals Approach to Financial Fluctuations
Financial fluctuations play a key role for financial markets studies. A new approach focusing on properties of return intervals can help to get better understanding of the fluct...
Fengzhong Wang, Kazuko Yamasaki, Shlomo Havlin, H....
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