In the context of comparative analysis of common web information retrieval technologies, this article discusses the principles and applications of Beautiful Soup, a vertical information search technology based on DOM tree structure. Supported by actual system examples and centering on the system architecture and core technology, this article discusses how to use Beautiful Soup to conduct deep i...

When clustering complex objects, there often exist various feature transformations and thus multiple object representations. To cluster multi-represented objects, dedicated data mining algorithms have been shown to achieve improved results. In this paper, we will introduce combination trees for describing arbitrary semantic relationships which can be used to extend the hierarchical clustering a...

We consider words as a network of interacting letters, and approximate the probability distribution of states taken on by this network. Despite the intuition that the rules of English spelling are highly combinatorial and arbitrary, we find that maximum entropy models consistent with pairwise correlations among letters provide a surprisingly good approximation to the full statistics of words, c...

cockroaches is not easy to document, given the precarious hygienic conditions of some of the habitats where they live. In fact, asthma is the only disease consistently associated with exposure to cockroaches [4–6] . Curiously enough, cockroaches have no lungs (they breathe through lateral spiracles in the body) [1] , but inhalation of cockroach materials by humans may trigger IgE antibody respo...

Is the textbook result that Solomonoff’s universal posterior convergesto the true posterior for all Martin-Löf random sequences true?Universal Induction Induction problems can be phrased as sequence predic-tion tasks. This is, for instance, obvious for time series prediction, but alsoincludes classification tasks. Having observed data xt at times t < n, the task isto predict...

urban growth and associated landscape transformation has been a major driver of local, regionaland global environmental change. the conversion of urban greenery to impervious landscapes has been identifiedas a key factor influencing the distinctive urban heat and associated consequences. due to the often highdemand for space in urban areas, creation and preservation of urban greenery as heat si...

Complex objects are often described by multiple representations modeling various aspects and using various feature transformations. To integrate all information into classification, the common way is to train a classifier on each representation and combine the results based on the local class probabilities. In this paper, we derive so-called confidence estimates for each of the classifiers refl...