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One of the main intents of all digital libraries is to provide wide access to academic resources. Several tools and techniques are available to achieve this goal, some of them focus on harvest and storage of resources wh...

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 ...

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 ...

In this paper, a novel model for monolingual Information Retrieval in English and Spanish language is proposed. This model uses Natural Language Processing techniques (a POStagger, a Partial Parser, and an Anaphora Resol...

Web Information Retrieval is another problem of searching elements of a set that are closest to a given query under a certain similarity criterion. It is of interest to take advantage of metric spaces in order to solve a...

"We recently showed that a ring of two bistable oscillators is capable of storing a single bit of information via stochastic resonance. Memory performance was characterized in terms of the probability of erroneous bit de...

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...

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

Users of Institutional Repositories and Digital Libraries are known by their needs for very specific information about one or more subjects. To characterize users profiles and offer them new documents and resources is on...

Clustering is the unsupervised classification of patterns (observations, data items, or feature vectors) into groups (clusters). The clustering problem has been addressed in many contexts and by researchers in many disci...

In addition to maintaining the GenBank(R) nucleic acid sequence database, the National Center for Biotechnology Information (NCBI) provides data analysis and retrieval resources for the data in GenBank and other biologic...

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...

Part 1 The lexical database: nouns in WordNet, George A. Miller modifiers in WordNet, Katherine J. Miller a semantic network of English verbs, Christiane Fellbaum design and implementation of the WordNet lexical database...

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 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. ...

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 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...

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...

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...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAutomatic Recording Apparatus for Use in Chromatography of Amino AcidsD. H. Spackman, W. H. Stein, and Stanford. MooreCite this: Anal. Chem. 1958, 30, 7, 1190–1206Publication...

MOTIVATION: Testing for correlations between different sets of genomic features is a fundamental task in genomics research. However, searching for overlaps between features with existing web-based methods is complicated ...

BACKGROUND: Sequence similarity searching is a very important bioinformatics task. While Basic Local Alignment Search Tool (BLAST) outperforms exact methods through its use of heuristics, the speed of the current BLAST s...

ADVERTISEMENT RETURN TO ISSUEPREVCommentaryNEXTChemical Reaction EngineeringOctave LevenspielView Author Information Chemical Engineering Department Oregon State University Corvallis, Oregon 97331Cite this: Ind. Eng. Che...