Conferences related to Null value

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


ICC 2021 - IEEE International Conference on Communications

IEEE ICC is one of the two flagship IEEE conferences in the field of communications; Montreal is to host this conference in 2021. Each annual IEEE ICC conference typically attracts approximately 1,500-2,000 attendees, and will present over 1,000 research works over its duration. As well as being an opportunity to share pioneering research ideas and developments, the conference is also an excellent networking and publicity event, giving the opportunity for businesses and clients to link together, and presenting the scope for companies to publicize themselves and their products among the leaders of communications industries from all over the world.


2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting

The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science


2020 IEEE 16th International Workshop on Advanced Motion Control (AMC)

AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.


2020 IEEE International Conference on Image Processing (ICIP)

The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2020, the 27th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.


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Periodicals related to Null value

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Broadcasting, IEEE Transactions on

Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.


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Most published Xplore authors for Null value

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Xplore Articles related to Null value

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A Strongly Minimal Axiomatisation of Multivalued Dependencies in Incomplete Database Relations

17th International Workshop on Database and Expert Systems Applications (DEXA'06), 2006

We study inference rules for multivalued dependencies in relational databases with null values (NMVDs). The definition of NMVDs is dependent on the underlying relation schema R and this is reflected syntactically by the R-complementation rule which is present in all previous axiomatisation of NMVDs. The main result is a sound and complete set Lfr of inference rules in which the ...


Comparison-criteria for semantic data models

1984 IEEE First International Conference on Data Engineering, 1984

This paper classifies a collection of semantic data models within a framework consisting of the following comparison-criteria: classification, aggregation, generalization and association (resp. cover aggregation).


Nonuniqueness of the inverse Laplace transform, and the debate on Harmuth's technique

IEEE Transactions on Electromagnetic Compatibility, 1994

As the inverse Laplace transform (ILT) is nonunique, computations based on the ILT may not be used to either prove or disprove the validity of Harmuth's technique for solving initial-boundary value problems.<<ETX>>


Improving Relational Database Quality Based on Adaptive Learning Method for Estimating Null Value

Second International Conference on Innovative Computing, Informatio and Control (ICICIC 2007), 2007

The poor data quality can cause a host of negative results, including lost information, operational inefficiencies in a database system and much more. Therefore, for many applications in the area of data analysis processing, data preprocessing is an essential step. In addition, the handling of null values is the major task of the data quality. In this paper, we present ...


Coset codes for partial response channels; or, coset codes with spectral nulls

IEEE Transactions on Information Theory, 1989

Known coset codes are adapted for use on partial response channels or to generate signals with spectral nulls. By using coset precoding and running digital sum feedback, any desired tradeoff can be achieved between the power and spectra of the relevant sequences, up to the optimum tradeoff possible. A fundamental theorem specifying this optimum tradeoff is given. A maximum- likelihood-sequence-estimation ...


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Educational Resources on Null value

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IEEE-USA E-Books

  • A Strongly Minimal Axiomatisation of Multivalued Dependencies in Incomplete Database Relations

    We study inference rules for multivalued dependencies in relational databases with null values (NMVDs). The definition of NMVDs is dependent on the underlying relation schema R and this is reflected syntactically by the R-complementation rule which is present in all previous axiomatisation of NMVDs. The main result is a sound and complete set Lfr of inference rules in which the R-axiom is the only inference rule dependent on R. This result extends work of Biskup who has provided such an axiomatisation in the absence of null values. It is proven that the set Lfr is minimal in a very strong sense. In fact, none of its rules can be omitted without losing the ability to infer all trivial NMVDs

  • Comparison-criteria for semantic data models

    This paper classifies a collection of semantic data models within a framework consisting of the following comparison-criteria: classification, aggregation, generalization and association (resp. cover aggregation).

  • Nonuniqueness of the inverse Laplace transform, and the debate on Harmuth's technique

    As the inverse Laplace transform (ILT) is nonunique, computations based on the ILT may not be used to either prove or disprove the validity of Harmuth's technique for solving initial-boundary value problems.<<ETX>>

  • Improving Relational Database Quality Based on Adaptive Learning Method for Estimating Null Value

    The poor data quality can cause a host of negative results, including lost information, operational inefficiencies in a database system and much more. Therefore, for many applications in the area of data analysis processing, data preprocessing is an essential step. In addition, the handling of null values is the major task of the data quality. In this paper, we present a new method for estimating null values in relational database systems based on adaptive learning techniques. The proposed method utilizes clustering algorithms to cluster data, and calculate coefficient values between different attributes by generating minimum average error. To verify our method, this paper utilizes two database ( Waugh 's database and Employee relational database), and Mean of Absolute Error Rate (MAER) as evaluation criterion to compare with the listing methods; it is shown that our proposed method is better than the listing methods for estimating null values in relational database systems.

  • Coset codes for partial response channels; or, coset codes with spectral nulls

    Known coset codes are adapted for use on partial response channels or to generate signals with spectral nulls. By using coset precoding and running digital sum feedback, any desired tradeoff can be achieved between the power and spectra of the relevant sequences, up to the optimum tradeoff possible. A fundamental theorem specifying this optimum tradeoff is given. A maximum- likelihood-sequence-estimation (MLSE) decoder for the original code may be used for the adapted code, and such a decoder then attains the minimum squared distance of the original code. These methods sometimes generate codes with greater minimum squared distance than that of the original code; this distance can be attained by augmented decoders, although such decoders inherently require long decoding delays and may be subjected to quasi-catastrophic error propagation. The authors conclude that, at least for sequences supporting large numbers of bits per symbol, coset codes can be adapted to achieve effectively the same performance and complexity on partial response channels, or for sequences with spectral nulls, as they do in the ordinary memoryless case.<<ETX>>

  • Element efficiency: a unifying concept for array antennas

    The efficiency of the mth elementary (lossless, reciprocal) antenna within the environment of an entire array of N terminated antenna elements may be defined as the ratio of the realized gain, g, relative to power available at the mth element, to the directive gain, g/sub d/ relative to the power radiated from that element. A physical arrangement of such a general array of N elements is indicated. With respect to the N antenna ports the array is characterized by its normalized voltage scattering matrix.

  • Resistive tapers that place nulls in the scattering patterns of strips

    The scattering patterns of a perfectly conducting strip can be modified by making part of the strip from resistive materials. A description is given of a method of deriving a complex resistive taper that places multiple nulls in the bistatic scattering pattern or one null in the backscattering pattern of a strip.<<ETX>>

  • Static checking java with the Java Static Checker

    This paper introduces a new open source static analysis tool, the Java Static Checker (JSC). Traditional static analysis tools examine Java code for fault instances considering specific code patterns. JSC is novel in that it examines Java code for potential fault classes based on propagating values and examining fault classes. In this paper, we use the tool to examine programs for potential null pointer dereferences. We empirically evaluate JSC and two other open source tools, Jlint and FindBugs, on a multiple programs. The results show that JSC finds more null pointer dereferences than the other tools.

  • Data level conflicts resolution for multi-sources heterogeneous databases

    Integration of data from multiple, heterogeneous databases is a commonly encountered scenario in information retrieval systems where the user is to be provided with a unified view of information. These data sources may be from different vendors, may comprise different schemas and, could be physically at different locations. A number of techniques have been developed to merge schemas of multiple databases and address the resulting conflicts. While schema integration and resolution of schema conflicts has been an active area of research, relatively lesser attention is paid to the issue of data level conflicts. These conflicts may arise while merging the actual data that is retrieved from multiple databases. A dedicated mechanism needs to be implemented to identify and resolve the conflicts encountered during data integration which makes the subject of our study. This paper identifies few major and frequently occurring data level conflicts which are likely to arise while integrating data. We propose a framework that identifies and resolves these conflicts. The framework is implemented as a software system which we call DHResol. The system evaluated to merge two different databases successfully identified and resolved the discussed conflicts.

  • Research on null-value estimation algorithm based on predicted value

    Information system composed of multi-source information is usually incomplete information system, the system contains a variety of types of null values. Incomplete information system of air-missing value estimation problem, first introduced abroad to fill the existing empty value method, and compared and analyzed; Secondly, the detailed model based on the similarity between the null value estimation methods (Expectation maximization, SIM-EM), and analyzed when dealing with sparse data problems; again, a problem of sparse data for improved forecasting methods score - the predicted value based on a null value estimation algorithm (Prediction-EM) and introduce a new feature weight method; Finally, experimental results and performance of this algorithm was validated.



Standards related to Null value

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(Replaced) IEEE Standard VHDL Language Reference Manual

his standard revises and enhances the VHDL language reference manual (LRM) by including a standard C language interface specification; specifications from previously separate, but related, standards IEEE Std 1164 -1993,1 IEEE Std 1076.2 -1996, and IEEE Std 1076.3-1997; and general language enhancements in the areas of design and verification of electronic systems.



Jobs related to Null value

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