Web Search Engines (WSEs) have stored in their query logs information about users since they started to operate. This information often serves many purposes. The primary focus of this tutorial is to introduce to the discipline of query log mining. We will show its foundations, by giving a unified view on the literature on query log analysis, and also present in detail the basic algorithms and t...

While logging events is becoming increasingly common in computing, in communication and in collaborative work, log systems need to satisfy increasingly challenging (if not conflicting) requirements. Despite the growing pervasiveness of log systems, to date there is no high-level framework which allows one to model a log system and to check whether it meets the requirements it should satisfy. In...

a large distribution of pore sizes, ranging from microcrystalline to large vugs. Knowledge of these pore spaces and their connectivity is crucial to hydrocarbon reservoir characterization and to hydrogeological and near surface environmental applications. In this paper, we present permeability and porosity images based on crosswell seismic measurements integrated with well logs and petrography ...

It’s an open secret that search engines collect detailed query logs, and sometimes release these data to third parties. While making this wealth of information available provides enormous opportunities for information retrieval and web mining research, it also raises serious concerns about the privacy of individuals. We strongly believe that this data should be published to allow researchers to...

The wood-feeding cockroach Cryptocercus punctulatus Scudder (Blattodea: Cryptocercidae) is an important member of the dead wood (saproxylic) community in montane forests of the southeastern United States. However, its population biology remains poorly understood. Here, aspects of family group co-occurrence were characterized to provide basic information that can be extended by studies on the ev...

Many species use coarse woody debris (CWD) and are disadvantaged by the forestry-induced loss of this resource. A neglected process affecting CWD is the covering of the surfaces of downed logs caused by sinking into the ground (increasing soil contact, mostly covering the underside of the log), and dense overgrowth by ground vegetation. Such cover is likely to profoundly influence the quality a...

The goal of process mining is to extract semantic knowledge from a log consisting of process execution traces for the purposes of process understanding, innovation and improvement. In recent years many algorithms have been proposed to extract process models from logs. The process models describe the ordering relationships between tasks in a process in terms of standard constructs like sequence,...

Those creating NetFlow tools struggle with two problems: (1) NetFlows come in many different, incompatible formats, and (2) the sensitivity of NetFlow logs can hinder the sharing of these logs and thus make it difficult for developers—particularly student research assistants—to get real data to use. Our solution is a new tool we created that converts and anonymizes NetFlow logs. In this paper w...

BACKGROUND Despite the importance of case logs in evaluating residents, no studies assess their accuracy in neurological surgery. Studies from other specialties reveal variations in reporting. This study assesses the accuracy of neurological surgery resident case logs at a single institution. METHODS Data was collected from three databases: billing data and two separate resident-managed case ...