maximum likelihood
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Anomaly Intrusion Detection System Using Hierarchical Gaussian Mixture Model
White Paper The use of Maximum likelihood in detection phase has used the deviation between current and reference behavior. Intrusion Detection Systems have been widely used to overcome security threats in computer... [20 Jun 2009]
Multicast Topology Inference From Measured End-to-End Loss
White Paper This paper proposes three types of algorithm that use loss measurements to infer the underlying multicast topology: a grouping estimator that exploits the monotonicity of loss rates with increasing path length; a maximum... [29 May 2009]
Maximum Entropy Confidence Estimation for Speech Recognition
White Paper First, it replaces the standard maximum likelihood classifier with a maximum entropy classifier. For many Automatic Speech Recognition (ASR) applications, it is useful to predict the... [13 Dec 2008]
Maximum Likelihood Methods for Data Mining in Datasets Represented by Graphs
White Paper This paper presents two graph models and two maximum likelihood algorithms that fit these models to pre-defined data. Due to the recent boom in complex network research, large graph datasets appeared in... [07 Oct 2008]
Data Mining Application of Non-Linear Mixed Modeling in Water Quality Analysis
White Paper The SAS/STAT procedure, NLMIXED fits non-linearity successfully in any time series using maximum likelihood-based methods. In regression analysis, non-linearity in fixed and random effects can adversely... [19 Sep 2008]
Adaptive Distributed Multidimensional Scaling for Localization in Sensor Networks
White Paper Further, RSS and Time-Of-Arrival (TOA) channel measurements are used to demonstrate performance as good as the centralized Maximum-Likelihood Estimator (MLE) in a real-world sensor network. Accurate,... [23 Aug 2007]
Multilevel Codes for OFDM-Like Modulation Over Underspread Fading Channels
White Paper For coherent reception with maximum likelihood decoding, it derives the code design criteria as a function of the channel's scattering function. This paper studies the problem of modulation and coding... [18 Apr 2007]
Receiver Algorithms for OFDM Systems in Phase Noise and AWGN
White Paper Their performance in terms of Bit Error Rate (BER) is evaluated by simulation using symbol by symbol or Maximum Likelihood Sequence Detection (MLSD). This paper addresses the subject of reducing the... [14 Apr 2007]
Maximum-Likelihood Carrier Frequency Offset Estimation for OFDM Systems in Fading Channels
White Paper This paper presents two maximum-likelihood CFO estimation schemes, one in frequency domain and another in time-domain, both under Doppler fading. Apart from improved accuracy, the time-domain... [13 Apr 2007]
Estimation of Carrier-Frequency Offset and Frequency-Selective Channels in MIMO OFDM Systems Using a Common Training Signal
White Paper Frequency offset estimation is based on the best linear unbiased estimation principle while channel estimation is based on the least squares (also maximum likelihood) approach. This paper presents a... [13 Apr 2007]
21CN knocks BT home fibre chances
News The more investment there is in 21CN, the likelihood of the debate resurfacing diminishes. In the meantime, despite adopting ADSL2+ broadband technology that promises a theoretical maximum of 24Mbps,... [12 Apr 2007]
High Performance Viterbi Decoder for OFDM Systems
White Paper It is well-known that, for systems that deploy conventional convolutional codes, a Viterbi decoder is the best solution in maximum likelihood sense to decode an information sequence. Typically, a Viterbi... [11 Apr 2007]
Tory MP says online petitions must count
News Although the internet is of course global, to have maximum impact with a petition I believe you still need to keep it massively localised. However, Shapps has his concerns about the likelihood of success. [14 Feb 2006]
AOL rapped over 'misleading' 1Mb ad claim
News The ASA said in its adjudication that the ad "exaggerated the likelihood of users achieving the maximum 1Mb download speed". AOL countered that if certain factors that could hamper users' ability to get... [03 Jun 2004]
PeopleSoft dangles $354m of guarantees in front of Ellison and co
News Based on the maximum potential amount of future payments under the guarantee program, Oracle, or any other acquirer, could be liable for roughly $354m in payments. However, PeopleSoft noted in its filing with the... [04 Jul 2003]
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