Data Mining With Ontologies: Implementations, Findings and by Héctor Oscar Nigro, Sandra Elizabeth Gonzalez Cisaro, Daniel

By Héctor Oscar Nigro, Sandra Elizabeth Gonzalez Cisaro, Daniel Hugo Xodo

Some of the most vital and difficult difficulties in information mining is the definition of past wisdom both from the method or the area. earlier wisdom is useful for choosing appropriate info and mining thoughts, pruning the distance of speculation, representing the output in a understandable method, and enhancing the final approach. info Mining with Ontologies: Implementations, Findings, and Frameworks presents a complete set of methodologies and instruments for the improvement of ontological foundations for information mining in diversified domain names starting from biomedicine to advertising. Forming a benchmark reference for destiny efforts to augment services in ontology usage and layout, this finest Reference resource might be a useful addition to libraries around the globe.

Show description

Read Online or Download Data Mining With Ontologies: Implementations, Findings and Frameworks (Premier Reference) PDF

Similar mining books

Large Mines and the Community: Socioeconomic and Environmental Effects in Latin America, Canada, and Spain

For hundreds of years, groups were based or formed established upon their entry to average assets and at the present time, in our globalizing global, significant common source advancements are spreading to extra distant parts. Mining operations are an exceptional instance: they've got a profound impression on neighborhood groups and are usually the 1st in a distant zone.

Mining the Web. Discovering Knowledge from Hypertext Data

Mining the internet: learning wisdom from Hypertext info is the 1st e-book dedicated solely to recommendations for generating wisdom from the mammoth physique of unstructured net info. development on an preliminary survey of infrastructural concerns — together with net crawling and indexing — Chakrabarti examines low-level computer studying strategies as they relate particularly to the demanding situations of net mining.

Regolith Exploration Geochemistry in Tropical and Subtropical Terrains: Handbook of Exploration Geochemistry

Using exploration geochemistry has elevated greatly within the final decade. the current quantity in particular addresses these geochemical exploration practices applicable for tropical, sub-tropical and adjoining parts – in environments starting from rainforest to abandon. useful strategies are made for the optimization of sampling, and analytical and interpretational strategies for exploration based on the actual nature of tropically weathered terrains.

Additional info for Data Mining With Ontologies: Implementations, Findings and Frameworks (Premier Reference)

Example text

For fast computations of the lexical chains, we stored the ontology’s top and middle level (sub)-topics in main memory, while WordNet hierarchies were stored on disk and were accessed through a hashtable whenever necessary. Moreover, words’ cooccurrence statistics were precomputed in the corpus and stored in inverted lists, which were again made accessible upon demand. Of course, the execution time of TODE’s categorizations 0 depends on both the number of pages considered and the ontology’s coverage.

That is, a rule must have a greater confidence value and a greater support value than the thresholds to qualify. Once a rule qualifies, it will appear in the results no matter whether Raising is used later or not. Many rules that are mined before Raising tend to have low support values. Thus these rules would not show up anyway. Thus, no new loss is introduced due to Raising. If a rule is not qualified, it does not meet the expectations of a useful rule. Therefore, to discard such a rule of little use and to lose those details is reasonable.

05%  TODE: An Ontology-Based Model for the Dynamic Population of Web Directories Table 4. 31% we explored only the topics of the highest RScores. Note also that we run the Bayesian classifier five times on our data, every time on a random 70/30 split and we report on the best accuracy rates among all runs for each category. The overall accuracy rates show that our method has improved classification accuracy compared to Bayesian classification. 54 percent classification accuracy respectively. The underlying reason for the improved accuracy of our classifier in those topics is the fact that our hierarchy is rich in semantic information for those topics.

Download PDF sample

Rated 4.23 of 5 – based on 9 votes
Posted In CategoriesMining