Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 60 for “"Side-information"”.
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Side-information for steganography design and detection
… schemes can be improved with the use of side-information.</p> <p>We distinguish two types of side-information, public and private: Public side-information is available to the sender and at least in part also to anybody else who can observe the communication. Content complexity is a …
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Speech enhancement with spectral magnitude side information
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Reduction of blocking artifacts using side information
… where blocking artifacts are reduced using side information transmitted from the encoder to the decoder. Using side information enables the use of the original image in deblocking, which improves performance. Furthermore, the computational burden at the decoder is reduced. The principal …
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Intelligent Side Information Generation in Distributed Video Coding
… governing DVC performance is the quality of side information (SI), a coarse representation of original video frames which are not available at the decoder. Techniques to generate SI have usually been based on linear motion compensated temporal interpolation (LMCTI), though these do not always …
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Efficient learning and planning using spatial side information
… following question: how to efficiently integrate side information, available either a priori or online, with existing algorithms for learning and planning in environments with stochastic features? Side information in this context refers to any information that does not directly determine system …
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Understanding the importance of side information in graph matching problem
… rely on the availability of seed vertex pairs as side information to deanonymize users across networks. Although such algorithms work well in practice, there are other types of side information available which are potentially useful to an attacker. In this thesis, we consider the problem of …
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Capacity of Gaussian noise channels with side information and feedback
… The transmitters usually have some form of information regarding the channel behavior. The main question of interest is to determine how to best use this information in order to increase the transmission rates, decrease the error probability and conserve resources. In this thesis, we present …
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Some Information Theoretic Aspects of Reliable Communication With Transmitter Side Information
… optimality of the separation architecture, we consider the problem of determining the capacity region of the multiple-input-multiple-output (MIMO) Gaussian broadcast channel. Our main result is a new extremal inequality as the underpinning mathematical structure for the MIMO Gaussian broadcast …
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Empirical Analysis of Neural Architectures and Side Information in Financial Time Series Forecasting
… the integration of options-derived features alongside traditional price data, compare recurrent architectures and transformer-based models, and evaluate multiple training strategies. Our key contributions include: (1) evidence that options-derived input features improve both error metrics and …
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A Jackknife Empirical Likelihood Approach To Goodness Of Fit U-Statistic Testing With Side Information
… empirical likelihood of U-statistics with side information as a special case. The results are generalized to allow for the constraints to use estimated criteria functions and for the number of constraints to grow with the sample size. The latter is needed to handle naturally occurring …
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Decision-theoretic techniques for the development and use of side information in frequency-hop radio receivers
… of a noncoherent receiver. This allows for information to be transmitted at higher data rates without sacrificing performance. Decision rules are derived for specific channels containing some combination of fading, Gaussian partial-band interference, multiple-access interference, and …
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Dynamic information and constraints in source and channel coding
… We begin by introducing the idea of distortion side information, which does not directly depend on the source but instead affects the distortion measure. Such distortion side information is not only useful at the encoder but under certain conditions knowing it at the encoder is optimal and …
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Approximate signal reconstruction from partial information
… A signal may be coded more efficiently if side information is included with the signal during transmission. This side information can then be used to reconstruct the image at some later time. In this thesis, the type of transform coding used is Multiple Bases Representation (MBR). This …
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Maximum empirical likelihood estimation in U-statistics based general estimating equations
… existing software. We investigate the use of side information of the data to improve efficiency. We exhibit that the MELE's are fully efficient, and the asymptotic variance of a MELE will not increase as the number of UGEE's increases. We give several important examples and demonstrate that …
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Multimedia Watermarking
… protection, content authentication, and side information delivery in commerce, journalism, security, and law.
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Enabling decentralized wireless index coding in practice
… in theoretical computer science and network information theory that studies the optimal coding scheme for transmitting multiple messages across a network to receivers with different side information. The ultimate goal of index coding is to reduce transmission time in a communication network …
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Compressive sensing based imaging via belief propagation
… as we do not have any knowledge of the side information available during the initiation of the decoding process. Thus, we prove that this algorithm is effective even in the absence of side information.
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Achievable rates for queue-based timing stegocodes
… over timing channels. In a timing channel, the information resides in the packet interdeparture times as opposed to the packets themselves. The en- coding procedure should preserve the statistics of the packet interarrival process. Our steganographic codes are based on two novel ideas, namely, …
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On Boolean functions, symmetric cryptography and algebraic coding theory
… part we take into account the index coding with side information (ICSI) problem. Firstly we investigate the optimal length of a linear index code, that is equal to the min-rank of the hypergraph related to the instance of the ICSI problem. In particular we extend the the so-called Sandwich …
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Slow frequency and time hopping in wireless communication
… receiver (but not the transmitter) has perfect side information on the channel state, diversity can only improve performance. In the absence of such side information, channel capacity decreases with diversity because of degrading channel estimation. We conclude that it is this tradeoff between …
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