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TIM
2010
108views Education» more  TIM 2010»
15 years 2 months ago
Reversible Watermarking by Modulation and Security Enhancement
This paper presents a watermarking algorithm that is suitable for the data represented in floating- or fixed-point numbers. By keeping the modulation information, every value in th...
Hao-Tian Wu, Yiu-ming Cheung
TIT
2010
161views Education» more  TIT 2010»
15 years 2 months ago
MIMO Gaussian channels with arbitrary inputs: optimal precoding and power allocation
We investigate the linear precoding and power allocation policies that maximize the mutual information for general multiple-input multiple-output (MIMO) Gaussian channels with arb...
Fernando Pérez-Cruz, Miguel R. D. Rodrigues...
CIKM
2010
Springer
15 years 6 months ago
Ranking under temporal constraints
This paper introduces the notion of temporally constrained ranked retrieval, which, given a query and a time constraint, produces the best possible ranked list within the specifi...
Lidan Wang, Donald Metzler, Jimmy Lin
SIGIR
2010
ACM
15 years 11 months ago
Image search by concept map
In this paper, we present a novel image search system, image search by concept map. This system enables users to indicate not only what semantic concepts are expected to appear bu...
Hao Xu, Jingdong Wang, Xian-Sheng Hua, Shipeng Li
CIKM
2010
Springer
15 years 6 months ago
Semantic tags generation and retrieval for online advertising
One of the main problems in online advertising is to display ads which are relevant and appropriate w.r.t. what the user is looking for. Often search engines fail to reach this go...
Roberto Mirizzi, Azzurra Ragone, Tommaso Di Noia, ...