This paper studies whether the central bank should adjust its inflation target to account for the systematic upward bias in measured inflation due to quality improvements in consumption goods. We show that the answer to this question depends on what prices are assumed to be sticky. If nonquality-adjusted prices are assumed to be sticky, then the inflation target should not be corrected. If, on ...

Symbol flipping-based hard decision decoding for non-binary low-density parity check (LDPC) codes has attracted much attention due to low decoding complexity even though the error performance of the symbol flipping decoder is inferior to that of the soft decision decoders. Standard symbol flipping decoding involves two steps, selection of the symbol position to be flipped and selection of the f...

The performance of transmission spaced selection diversity (SD) placed at base station (BS) in DS-CDMA system remains insufficiently clear. This performance will be evaluated by considering the effect of space distance between antennas and the maximum Doppler frequency (fd) on bit error rate (BER) performance under optimum conditions which are not clarified until now. Moreover, analysis of this...

A recent trend in ultra low bit-rate speech coding is based on segment quantization by unit-selection principle using large continuous codebooks as a unit database. We show that use of such large unit databases allows speech to be reconstructed at the decoder by using the best unit’s residual itself (in the unit database), thereby obviating the need to transmit any side information about the re...

This paper presents a new unit selection process for Very Low Bit Rate speech encoding around 500 bits/sec. The encoding is based on speech recognition and speech synthesis technologies. The aim of this approach is to use at best the speech corpus of the speaker. The proposed solution uses HMM modelling for the recognition of elementary speech units. The HMM are first trained in an unsupervised...

In content-based image retrieval, precision is usually regarded as the top metric used for performance measurement. With image databases reaching hundreds of millions of records, it is apparent that many retrieval strategies will not scale. Data representation and organization has to be better understood. This paper focuses on: (a) feature selection and optimal representation of features and (b...

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Resource exhaustion is one of the main challenges for the security of Wireless Sensor Networks (WSNs). The challenge can be addressed by using algorithms that are light weighted. In this paper use of light-weighted RContiguous Bit matching for attack detection in WSNs has been evaluated. Use of R-Contiguous bit matching in Negative Selection Algorithm (NSA) has improved the performance of anoma...