This paper explores the possibility to exploit text on the world wide web in order to enrich the concepts in existing ontologies. First, a method to retrieve documents from the WWW related to a concept is described. These document collections are used 1) to construct topic signatures (lists of topically related words) for each concept in WordNet, and 2) to build hierarchical clusters of the con...

In biological networks of molecular interactions in a cell, network motifs that are biologically relevant are also functionally coherent, or form functional modules. These functionally coherent modules combine in a hierarchical manner into larger, less cohesive subsystems, thus revealing one of the essential design principles of system-level cellular organization and function-hierarchical modul...

The Internet presents a vast resource of information that continues to grow exponentially. Most of the present day search engines aid in locating relevant documents based on keyword matches. However, to provide the user with more relevant information, we need a system that also incorporates the conceptual framework of the queries. This is the goal of KeyConcept, a search engine that retrieves d...

This paper describes ONTMAT an ontology matching system, and presents the results obtained for the Ontology Alignment Evaluation Initiative (OAEI) 2017. ONTMAT is an ontology matching process, which compares the instances of ontologies to align in order to deduce the relations between their concepts. Then, based on hierarchical and binary relations between the concepts inside the ontologies it ...

Attempts to formulatemathematically precise definitions of basic concepts such as causality, randomness and probability have a long history. The concept of hierarchical definability that is outlined in the following suggests that such definitions may not exist. Furthermore, it suggests that existing definitions of many basic concepts, among them those of linearity stability, statistical indepen...

A novel approach to learning metaphors without any prior knowledge is proposed, in which ideas are acquired as concrete concepts and later on develop their abstraction. A grounded model of linguistic concepts and a hierarchical probability map is used to interpret/generate ontological metaphors.

The idea that cognition is controlled hierarchically is appealing to many but is difficult to demonstrate empirically. Often, nonhierarchical theories can account for the data as well as hierarchical ones do. The purpose of this chapter is to document the case for hierarchical control in skilled typing and present it as an example of a strategy for demonstrating hierarchical control in other co...

The paper presents the mathematical concepts underlying the new adaptive finite element code KASKADE, which, in its present form, applies to linear scalar second-order 2-D elliptic problems on general domains. Starting point for the new development is the recent work on hierarchical finite element bases due to Yserentant (1986). It is shown that this approach permits a flexible balance between ...

This paper proposes a hierarchical text categorization (TC) approach to encoding free-text clinical notes with ICD-9-CM codes. Preliminary experimental result on the 2007 Computational Medicine Challenge data shows a hierarchical TC system has achieved a microaveraged F1 value of 86.6, which is comparable to the performance of state-of-the-art flat classification systems.

The temporal correlation hypothesis proposes that synchronous activity in different regions ofthe brain describes integral entities (von der Malsburg, 1981; Singer and Gray, 1995). Thistemporal binding approach is a possible solution to the longstanding binding problem ofrepresenting composite objects (Rosenblatt, 1961). To complement the dynamic nature oftemporal binding, a rec...