Mining frequent subtrees from databases of labeled trees is a new research field that has many practical applications in areas such as computer networks, Web mining, bioinformatics, XML document mining, etc. These applications share a requirement for the more expressive power of labeled trees to capture the complex relations among data entities. Although frequent subtree mining is a more diffic...

In areas where mining encroaches on a previously mined area, the historic mine plans do not always provide accurate information regarding the extent of historic and existing developments. Mining into old workings may result in hazards such as flooding of advancing workings. The development of infrastructure over old workings may also be undesirable, especially in areas that are susceptible to s...

Welcome to the AAAI-99 & GECCO-99 Workshop on Data Mining with Evolutionary Algorithms: Research Directions. The main motivation for the workshop is to discuss research integrating two areas, namely data mining and evolutionary algorithms. The workshop consists of six paper presentations, which will promote interesting discussions and exchange of ideas among the attendees. These papers were sel...