In this paper, we investigate the integration of heterogeneous network monitoring data. Specifically, we will synchronize and integrate flow-level records, exemplified by Cisco NetFlow, and packet-level traces, exemplified by NLANR PMA. The integration can facilitate crossvalidation and complementary utility. However, finding the correspondences of timestamps/flows/packets between the PMA and N...

Many useful XML transformations can be formulated through deterministic top-down tree transducers. As soon as transducers process parts of the input repeatedly or in an order deviating from the document order, such transductions cannot be realized over the XML document stream with constant or even depthbounded memory. Here we show that by enriching streams by forward references every such trans...

This paper describes an acoustic-to-phonetic decoder (APD) (based on a mixed strategy: a) bottom-up which hypothesizes the most robust information about the speech signal, b) top-down which makes some verifications about the acoustic features or about the macro-class localization on the speech signal. In this paper, only the bottom-up strategy is described. In our system, a phoneme is described...

This chapter claims that analogy-making, in particular the structural mapping ability is a very basic mechanism in human cognition and thus, it is also a basic mechanism for anticipation. A number of various everyday situations are analyzed that involve anticipation by analogy. Then the role of analogy is discussed in computational term to analyze why using analogy ensures flexible behavior and...

Scene interpretation systems are often conceived as extensions of low-level image analysis with bottom-up processing for high-level interpretations. In this contribution we show how a generic high-level interpretation system can generate hypotheses and initiate feedback in terms of top-down controlled low-level image analysis. Experimental results are reported about the recognition of structure...

In Zeiten volatiler und steigender Energiepreise gewinnt die Lastprognose als Entscheidungsgrundlage zunehmend an Bedeutung. Die fortschreitende Digitalisierung erlaubt zudem ein detailliertes Aufzeichnen von Verbrauchsdaten auf mehreren Abstraktionsebenen. diesem Beitrag werden zwei Ansätze, eine Messzählertopologie in Prognose integrieren, mit dem Standardansatz Hauptzählerebene verglichen. E...

Emerging parallel processing and increased flexibility during the acquisition of cognitive skills form a combination that is hard to reconcile with rule-based models that often produce brittle behavior. Rule-based models can exhibit these properties by adhering to 2 principles: that the model gradually learns task-specific rules from instructions and experience, and that bottom-up processing is...

A biologically inspired foveated attention system in an object detection scenario is proposed. Thereby, a highperformance active multi-focal camera system imitates visual behaviors such as scan, saccade and fixation. Bottom-up attention uses wide-angle stereo data to select a sequence of fixation points in the peripheral field of view. Successive saccade and fixation of high foveal resolution u...

This study investigated the role of bottom-up and top-down neural mechanisms in the processing of emotional face expression during memory formation. Functional brain imaging data was acquired during incidental learning of positive ("happy"), neutral and negative ("angry" or "fearful") faces. Dynamic Causal Modeling (DCM) was applied on the functional magnetic resonance imaging (fMRI) data to ch...