Requirements Clustering
Mostrando 1-12 de 12 artigos, teses e dissertações.
-
1. Aprendizado não supervisionado de hierarquias de tópicos a partir de coleções textuais dinâmicas / Unsupervised learning of topic hierarchies from dynamic text collections
The need to extract new and useful knowledge from large textual collections has motivated researchs on Text Mining methods. Among the existing methods, initiatives for the knowledge organization by topic hierarchies are very popular. In the topic hierarchies, the knowledge is represented by topics and subtopics, and each topic contains documents of similar c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/05/2011
-
2. Revisiting privacy preserving clustering by data transformation.
Preserving the privacy of individuals when data are shared for clustering is a complex problem. The challenge is how to protect the underlying data values subjected to clustering without jeopardizing the similarity between objects under analysis. In this short paper, we revisit a family of geometric data transformation methods (GDTMs) that distort numerical
Journal of Information and Data Management. Publicado em: 2011
-
3. Quality of mil, before and after the Normative Instruction 51, in the Middle Piracicaba (MG) / Qualidade do leite, antes e depois da Instrução Normativa 51, na região do Médio Piracicaba (MG)
The objective is to assess the quality of milk based on the requirements of the Normative Instruction 51 (IN51) to the results of total bacterial count (CBT), somatic cell count (SCC), crude protein (CP) and fat in the period 2004 to 2007, the Cooperative of Rural Producers Alvinópolis Ltda., in 151 properties, totaling 5.436 observations. To better assess
Publicado em: 2009
-
4. VERIFICAÇÃO E VALIDAÇÃO EM REQUISITOS: PROCESSAMENTO DA LINGUAGEM NATURAL E AGENTES / REQUIREMENTS VERIFICATION AND VALIDATION: NATURAL LANGUAGE PROCESSING AND SOFTWARE AGENTS
No processo de desenvolvimento do software, atividades relacionadas ao Processo de Requisitos envolvem elicitação, modelagem, verificação e validação dos requisitos. O uso da linguagem natural no registro dos requisitos facilita a comunicação entre os participantes do processo, além de possibilitar que clientes e usuários validem requisitos sem nec
Publicado em: 2007
-
5. The Human β-Globin Replication Initiation Region Consists of Two Modular Independent Replicators
Previous studies have shown that mammalian cells contain replicator sequences, which can determine where DNA replication initiates. However, the specific sequences that confer replicator activity were not identified. Here we report a detailed analysis of replicator sequences that dictate initiation of DNA replication from the human β-globin locus. This anal
American Society for Microbiology.
-
6. Sequential Requirements of the N-Terminal Palmitoylation Site and SH2 Domain of Src Family Kinases in the Initiation and Progression of FcɛRI Signaling
Initial biochemical signaling originating from high-affinity immunoglobulin E receptor (FcɛRI) has been ascribed to Src family kinases. To understand the mechanisms by which individual kinases drive the signaling, we conducted reconstitution experiments: FcɛRI signaling in RBL2H3 cells was first suppressed by a membrane-anchored, gain-of-function C-termina
American Society for Microbiology.
-
7. Peripheral nervous system defects in erbB2 mutants following genetic rescue of heart development
The ErbB2 tyrosine kinase functions as coreceptor for the neuregulin receptors ErbB3 and ErbB4 and can participate in signaling of EGF receptor (ErbB1), interleukin receptor gp130, and G-protein coupled receptors. ErbB2−/− mice die at midgestation because of heart malformation. Here, we report a genetic rescue of their heart development by myocardial exp
Cold Spring Harbor Laboratory Press.
-
8. A novel meiosis-specific protein of fission yeast, Meu13p, promotes homologous pairing independently of homologous recombination
Meiotic homologous pairing is crucial to proper homologous recombination, which secures subsequent reductional chromosome segregation. We have identified a novel meiosis-specific protein of fission yeast Schizosaccharomyces pombe, Meu13p, to be a molecule that is required for proper homologous pairing and recombination. Rec12p (homologue of Saccharomyces cer
Oxford University Press.
-
9. In vivo requirements for rDNA chromosome condensation reveal two cell-cycle-regulated pathways for mitotic chromosome folding
Chromosome condensation plays an essential role in the maintenance of genetic integrity. Using genetic, cell biological, and biochemical approaches, we distinguish two cell-cycle-regulated pathways for chromosome condensation in budding yeast. From G2 to metaphase, we show that the condensation of the ∼1-Mb rDNA array is a multistep process, and describe c
Cold Spring Harbor Laboratory Press.
-
10. Factors affecting binding of galacto ligands to Actinomyces viscosus lectin.
The specificity requirements for the binding of Actinomyces viscosus T14V were examined by testing simple sugars, oligopeptides, and glycoproteins as inhibitors of the aggregation of glycoprotein-coated latex beads and washed A. viscosus cells. Lactose was the most inhibitory simple sugar; D-fucose and D-galactose were equally inhibitory, methyl-alpha-D-fuco
-
11. Analysis of Fc(epsilon)RI-mediated mast cell stimulation by surface-carried antigens.
Clustering of the type I receptor for IgE (Fc[epsilon]RI) on mast cells initiates a cascade of biochemical processes that result in secretion of inflammatory mediators. To determine the Fc(epsilon)RI proximity, cluster size, and mobility requirements for initiating the Fc(epsilon)RI cascade, a novel experimental protocol has been developed in which mast cell
-
12. Requirements for different components of the host cell cytoskeleton distinguish ecotropic murine leukemia virus entry via endocytosis from entry via surface fusion.
Murine ecotropic leukemia viruses use a common receptor for entry into host cells; however, the site of virus fusion appears to differ with the host cell. Entry in mouse NIH 3T3 fibroblasts is by endocytosis, whereas entry in rat XC sarcoma cells is by surface fusion. We report here the identification of a step common to both entry pathways, as well as of a