Results 1 - 10 of 402

Optimol: automatic online picture collection via incremental model learning

by Li-jia Li, Gang Wang, Li Fei-fei - IN CVPR , 2007
"... A well-built dataset is a necessary starting point for advanced computer vision research. It plays a crucial role in evaluation and provides a continuous challenge to state-of-the-art algorithms. Dataset collection is, however, a tedious and time-consuming task. This paper presents a novel automatic ..."
Abstract - Cited by 78 (5 self) - Add to MetaCart
. It mimics the human learning process of iteratively accumulating model knowledge and image examples. We adapt a non-parametric graphical model and propose an incremental learning framework. Our algorithm is capable of automatically collecting much larger object category datasets for 22 randomly selected

Secure message transmission in mobile ad hoc networks

by Panagiotis Papadimitratos, Zygmunt J. Haas - AD HOC NETWORKS , 2003
"... The vision of nomadic computing with its ubiquitous access has stimulated much interest in the Mobile Ad Hoc Networking (MANET) technology. However, its proliferation strongly depends on the availability of security provisions, among other factors. In the open, collaborative MANET environment practi ..."
Abstract - Cited by 72 (14 self) - Add to MetaCart
effective, protocol that can operate solely in an end-to-end manner. It exploits the redundancy of multi-path routing and adapts its operation to remain efficient and effective even in highly adverse environments. SMT is capable of delivering up to 250% more data messages than a protocol that does

Click Fraud Detection: Adversarial Pattern Recognition over 5 Years at Microsoft

by Brendan Kitts , Jing Ying Zhang , Gang Wu , Wesley Brandi , Julien Beasley , Kieran Morrill , John Ettedgui , Sid Siddhartha , Hong Yuan , Feng Gao , Peter Azo , Raj Mahato
"... Abstract. Microsoft adCenter is the third largest Search advertising platform in the United States behind Google and Yahoo, and services about 10% of US traffic. At this scale of traffic approximately 1 billion events per hour, amounting to $2.3 billion ad dollars annually, need to be scored to det ..."
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Detection Is Hard Click Fraud is an adversarial detection problem This enormous scale is in stark contrast to the number of fraudulent events. Often these events are spread across large numbers of IPs. For example ClickBotA was configured to click fewer than 20 times per IP Ad Networks also need

Secure Data Transmission in Mobile Ad Hoc Networks

by Panagiotis Papadimitratos, Zygmunt J. Haas - ACM WORKSHOP ON WIRELESS SECURITY , 2003
"... The vision of nomadic computing with its ubiquitous access has stimulated much interest in the Mobile Ad Hoc Networking (MANET) technology. However, its proliferation strongly depends on the availability of security provisions, among other factors. In the open, collaborative MANET environment practi ..."
Abstract - Cited by 65 (0 self) - Add to MetaCart
effective, protocol that can operate solely in an end-to-end manner. It exploits the redundancy of multipath routing and adapts its operation to remain efficient and effective even in highly adverse environments. SMT is capable of delivering up to 250% more data messages than a protocol that does not secure

Preprint typeset using L ATEX style emulateapj v. 6/22/04 DIRECT DETECTION OF THE BROWN DWARF GJ 802B WITH ADAPTIVE OPTICS MASKING INTERFEROMETRY

by James P. Lloyd, Frantz Martinache, Michael J. Irel, John D. Monnier, Steven H. Pravdo, Stuart B, Peter G. Tuthill , 2008
"... We have used the Palomar 200 ” Adaptive Optics (AO) system to directly detect the astrometric brown dwarf GJ 802B reported by Pravdo et al. 2005. This observation is achieved with a novel combination of aperture masking interferometry and AO. The dynamical masses are 0.175±0.021 M ⊙ and 0.064±0.032 ..."
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We have used the Palomar 200 ” Adaptive Optics (AO) system to directly detect the astrometric brown dwarf GJ 802B reported by Pravdo et al. 2005. This observation is achieved with a novel combination of aperture masking interferometry and AO. The dynamical masses are 0.175±0.021 M ⊙ and 0

Preprint typeset using LATEX style emulateapj v. 6/22/04 DIRECT DETECTION OF THE BROWN DWARF GJ 802B WITH ADAPTIVE OPTICS MASKING INTERFEROMETRY

by James P. Lloyd, Frantz Martinache, Michael J. Irel, John D. Monnier, Steven H. Pravdo, Stuart B, Peter G. Tuthill , 2007
"... ar ..."
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Abstract not found

Medial prefrontal cell activity signaling prediction errors of action values.

by Madoka Matsumoto , Kenji Matsumoto , Hiroshi Abe , Keiji Tanaka - Nat. Neurosci. , 2007
"... To adapt behavior to a changing environment, one must monitor outcomes of executed actions and adjust subsequent actions accordingly. Involvement of the medial frontal cortex in performance monitoring has been suggested, but little is known about neural processes that link performance monitoring to ..."
Abstract - Cited by 52 (1 self) - Add to MetaCart
is activated when an executed action is found to be inappropriate. A negative deflection (error-related negativity, ERN) has been repeatedly observed in human electroencephalogram (EEG) studies During behavioral adaptation, the detection of both failure and success is informative. An action

Global Genome Comparative Analysis Reveals Insights of Resistome and Life-Style Adaptation of Pseudomonas putida Strain T2-2 in Oral Cavity

by Xin Yue Chan , Kah Ooi Chua , Yan Kah , Wai-Fong How , Kok-Gan Yin , Chan
"... Most Pseudomonas putida strains are environmental microorganisms exhibiting a wide range of metabolic capability but certain strains have been reported as rare opportunistic pathogens and some emerged as multidrug resistant P. putida. This study aimed to assess the drug resistance profile of, via w ..."
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on carbohydrate and aromatic compounds metabolisms, which suggested its little versatility. The detection of its edd gene also suggested T2-2's catabolism of glucose via ED pathway instead of EMP pathway. On the other hand, its drug resistance profile was observed via in silico gene prediction and most

Research Article Global Genome Comparative Analysis Reveals Insights of Resistome and Life-Style Adaptation of Pseudomonas putida Strain T2-2 in Oral Cavity

by Xin Yue Chan, Kah Ooi Chua, Kah Yan How, Wai-fong Yin, Kok-gan Chan
"... which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Most Pseudomonas putida strains are environmental microorganisms exhibiting a wide range of metabolic capability but certain strains have been reported as rare opportunistic pa ..."
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. In silico comparative genome analysis with available reference strains of P. putida shows that T2-2 has lesser gene counts on carbohydrate and aromatic compounds metabolisms, which suggested its little versatility. The detection of its edd gene also suggested T2-2’s catabolism of glucose via ED pathway

Hd1, a major photoperiod sensitivity quantitative trait locus in rice, is closely related to the Arabidopsis flowering time gene CONSTANS. Plant Cell.

by Masahiro Yano , Yuichi Katayose , Motoyuki Ashikari , Utako Yamanouchi , Lisa Monna , Takuichi Fuse , Tomoya Baba , Kimiko Yamamoto , Yosuke Umehara , Yoshiaki Nagamura , Takuji Sasaki , 2000
"... A major quantitative trait locus (QTL) controlling response to photoperiod, Hd1 , was identified by means of a mapbased cloning strategy. High-resolution mapping using 1505 segregants enabled us to define a genomic region of ‫ف‬ 12 kb as a candidate for Hd1 . Further analysis revealed that the Hd1 ..."
Abstract - Cited by 49 (5 self) - Add to MetaCart
of heading under natural field conditions by the Hd1 allele of Nipponbare is less than that of Ginbouzu. We also observed a difference in days to heading between two se1 mutants, HS66 (95.2 Ϯ 2.2) and HS110 (103.8 Ϯ 1.9). In the RT-PCR assay, we detected a normal-size Hd1 transcript in HS110. These results
Results 1 - 10 of 402