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Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and text clustering from basic concepts. It gives an up-to-date ...

Materie / parole chiave: Information retrieval; Computer science

ADVERTISEMENT RETURN TO ISSUEArticleNEXTAb Initio Calculation of Vibrational Absorption and Circular Dichroism Spectra Using Density Functional Force FieldsP. J. Stephens, F. J. Devlin, C. F. Chabalowski, and M. J. Frisc...

Class-tested and coherent, this textbook teaches classical and web information retrieval, including web search and the related areas of text classification and text clustering from basic concepts. It gives an up-to-date ...

Presents a review of 200 references in content-based image retrieval. The paper starts with discussing the working conditions of content-based retrieval: patterns of use, types of pictures, the role of semantics, and the...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSMILES, a chemical language and information system. 1. Introduction to methodology and encoding rulesDavid WeiningerCite this: J. Chem. Inf. Comput. Sci. 1988, 28, 1, 31–36Pu...

BACKGROUND: Currently, a lack of consensus exists on how best to perform and interpret quantitative real-time PCR (qPCR) experiments. The problem is exacerbated by a lack of sufficient experimental detail in many publica...

Materie / parole chiave: Weighting; Search engine indexing; Term (time); Computer science; Information retrieval; Automatic indexing; Baseline (sea); Document retrieval; Data mining; Radiology; Geology; Oceanography

We describe an approach to object and scene retrieval which searches for and localizes all the occurrences of a user outlined object in a video. The object is represented by a set of viewpoint invariant region descriptor...

The category Computer Program Abstracts provides a rapid means of communicating up-to-date information concerning both new programs or systems and signi®cant updates to existing ones. Following normal submission, a Comp...

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTNucleus-Independent Chemical Shifts: A Simple and Efficient Aromaticity ProbePaul von Ragué Schleyer*, Christoph Maerker, Alk Dransfeld, Haijun Jiao, and Nicolaas J. R. ...

PURPOSE: The Compendium of Physical Activities was developed to enhance the comparability of results across studies using self-report physical activity (PA) and is used to quantify the energy cost of a wide variety of PA...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHard and Soft Acids and BasesRalph G. PearsonCite this: J. Am. Chem. Soc. 1963, 85, 22, 3533–3539Publication Date (Print):November 1, 1963Publication History Published online...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid Phase Peptide Synthesis. I. The Synthesis of a TetrapeptideR. B. MerrifieldCite this: J. Am. Chem. Soc. 1963, 85, 14, 2149–2154Publication Date (Print):July 1, 1963Publ...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Spectrophotometric Investigation of the Interaction of Iodine with Aromatic HydrocarbonsH. A. Benesi and J. H. HildebrandCite this: J. Am. Chem. Soc. 1949, 71, 8, 2703–2707...

ADVERTISEMENT RETURN TO ISSUEPREVarticleNEXTA new family of mesoporous molecular sieves prepared with liquid crystal templatesJ. S. Beck, J. C. Vartuli, W. J. Roth, M. E. Leonowicz, C. T. Kresge, K. D. Schmitt, C. T. W. ...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA quantum theory of molecular structure and its applicationsRichard F. W. BaderCite this: Chem. Rev. 1991, 91, 5, 893–928Publication Date (Print):July 1, 1991Publication Hist...

Research Article| February 01 1956 A study of the conditions and mechanism of the diphenylamine reaction for the colorimetric estimation of deoxyribonucleic acid K. Burton K. Burton 1Medical Research Council, Cell Metabo...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA survey of Hammett substituent constants and resonance and field parametersCorwin. Hansch, A. Leo, and R. W. TaftCite this: Chem. Rev. 1991, 91, 2, 165–195Publication Date (...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA well-behaved electrostatic potential based method using charge restraints for deriving atomic charges: the RESP modelChristopher I. Bayly, Piotr Cieplak, Wendy Cornell, and P...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAb initio molecular orbital theoryWarren J. HehreCite this: Acc. Chem. Res. 1976, 9, 11, 399–406Publication Date (Print):November 1, 1976Publication History Published online1...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAdsorption of Gases in Multimolecular LayersStephen Brunauer, P. H. Emmett, and Edward TellerCite this: J. Am. Chem. Soc. 1938, 60, 2, 309–319Publication Date (Print):Februar...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlgebraic Representation of Thermodynamic Properties and the Classification of SolutionsOtto Redlich and A. T. KisterCite this: Ind. Eng. Chem. 1948, 40, 2, 345–348Publicatio...

The network structure of a hyperlinked environment can be a rich source of information about the content of the environment, provided we have effective means for understanding it. We develop a set of algorithmic tools fo...