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Event mining : algorithms and applications
\"Event mining encompasses techniques for automatically and efficiently extracting valuable knowledge from historical event/log data. The field, therefore, plays an important role in data-driven system management. Event Mining: Algorithms and Applications presents state-of-the-art event mining approaches and applications with a focus on computing system management. The book first explains how to transform log data in disparate formats and contents into a canonical form as well as how to optimize system monitoring. It then describes intelligent and efficient methods and algorithms to perform data-driven pattern discovery and problem determination for managing complex systems. The book also discusses data-driven approaches for the detailed diagnosis of a system issue and addresses the application of event summarization in Twitter messages (tweets). Understanding the interdisciplinary field of event mining can be challenging as it requires familiarity with several research areas and the relevant literature is scattered in diverse publications. This book makes it easier to explore the field by providing both a good starting point if you are not familiar with the topics and a comprehensive reference if you are already working in this area\"--Back cover.
Book
Well Logging and Formation Evaluation
This hand guide in the Gulf Drilling Guides series offers practical techniques that are valuable to petrophysicists and engineers in their day-to-day jobs. Based on the authors many years of experience working in oil companies around the world, this guide is a comprehensive collection of techniques and rules of thumb that work.The primary functions of the drilling or petroleum engineer are to ensure that the right operational decisions are made during the course of drilling and testing a well, from data gathering, completion and testing, and thereafter to provide the necessary parameters to enable an accurate static and dynamic model of the reservoir to be constructed. This guide supplies these, and many other, answers to their everyday problems.
eBook
Ancestral lines : the Maisin of Papua New Guinea and the fate of the rainforest
\"More than a century of interaction with colonial and global agencies and forces has brought many changes to the lives of the Maisin people who live on the northeastern coast of Papua New Guinea. Yet ancestral traditions continue to strongly inform their way of life. Drawing on his long-term fieldwork with the Maisin, Barker offers a nuanced understanding of the way in which the Maisin have been able to reject global commercial logging and remain true to their ancestral values, while still participating in wider social, political, and economic systems. Beautifully written and accessible to most readers, including those with little or no knowledge of Melanesia or anthropology, Ancestral Lines is designed with introductory cultural anthropology courses in mind. The book is organized into chapters that mirror many of the major topics covered in introductory cultural anthropology, such as kinship, economic pursuit, social arrangements, gender relations, religion, politics, and the environment, and uses the Maisin's signature product, tapa cloth, to explain and discuss these topics. The new edition includes a revised preface and an epilogue that brings readers up to date on important events since 2002, including a devastating cyclone and a major court victory against the forestry industry.\"-- Provided by publisher.
Book
Impacts of salvage logging on biodiversity: A meta-analysis
1. Logging to \"salvage\" economic returns from forests affected by natural disturbances has become increasingly prevalent globally. Despite potential negative effects on biodiversity, salvage logging is often conducted, even in areas otherwise excluded from logging and reserved for nature conservation, inter alia because strategic priorities for post-disturbance management are widely lacking. 2. A review of the existing literature revealed that most studies investigating the effects of salvage logging on biodiversity have been conducted less than 5 years following natural disturbances, and focused on non-saproxylic organisms. 3. A meta-analysis across 24 species groups revealed that salvage logging significantly decreases numbers of species of eight taxonomic groups. Richness of dead wood dependent taxa (i.e. saproxylic organisms) decreased more strongly than richness of non-saproxylic taxa. In contrast, taxonomic groups typically associated with open habitats increased in the number of species after salvage logging. 4. By analysing 134 original species abundance matrices, we demonstrate that salvage logging significantly alters community composition in 7 of 17 species groups, particularly affecting saproxylic assemblages. 5. Synthesis and applications. Our results suggest that salvage logging is not consistent with the management objectives of protected areas. Substantial changes, such as the retention of dead wood in naturally disturbed forests, are needed to support biodiversity. Future research should investigate the amount and spatio-temporal distribution of retained dead wood needed to maintain all components of biodiversity.
Journal Article
The high climber of Dark Water Bay
Orphaned in 1929 Lizzie, twelve, is sent to a Vancouver logging camp where the camp boss, a scoundrel, gives her a perilous job while seeking ransom from her absent uncle.
Book
At the edges of states : dynamics of state formation in the Indonesian borderlands
\"Set in West Kalimantan, Indonesian Borneo, this study explores the shifting relationships between border communities and the state along the political border with East Malaysia. The book rests on the premises that remote border regions offer an exciting study arena that can tell us important things about how marginal citizens relate to their nation-state. The basic assumption is that central state authority in the Indonesian borderlands has never been absolute, but waxes and wanes, and state rules and laws are always up for local interpretation and negotiation. In its role as key symbol of state sovereignty, the borderland has become a place were central state authorities are often most eager to govern and exercise power. But as illustrated, the borderland is also a place were state authority is most likely to be challenged, questioned and manipulated as border communities often have multiple loyalties that transcend state borders and contradict imaginations of the state as guardians of national sovereignty and citizenship\"--Back cover.
BOOK
Do space-for-time assessments underestimate the impacts of logging on tropical biodiversity? An Amazonian case study using dung beetles
1. Human alteration of the global environment is leading to a pervasive loss of biodiversity. Most studies evaluating human impacts on biodiversity occur after the disturbance has taken place using spatially distinct sites to determine the undisturbed reference condition. This approach is known as a space-for-time (SFT) substitution. However, SFT substitution could be underestimating biodiversity loss if spatial controls fail to provide adequate inferences about pre-disturbance conditions. 2. We compare the SFT substitution with a before-after control-impact (BACI) approach by assessing dung beetles before and after a logging exploration in the Brazilian Amazon. We sampled 34 logging management units, of which 29 were selectively logged with different intensities after our first collection. We used dung beetle species richness, species composition and biomass as our biodiversity response metrics and the gradient of selective logging intensity as our explanatory metric. 3. Only the BACI approach consistently demonstrated the negative impacts of logging intensification on all dung beetle community metrics. Moreover, the BACI approach explained significantly more of the variance in all the relationships and it doubled the estimates of species loss along the gradient of logging intensity when compared to SFT. 4. Synthesis and applications. Our results suggest that space-for-time (SFT) substitution may greatly underestimate the consequences on local species diversity and community turnover. These results have important implications for researchers investigating human impacts on biodiversity. Incentivizing before-after control-impact (BACI) approaches will require longer-term funding to gather the data and stronger links between researchers and landowners. However, BACI approaches are accompanied by many logistical constraints, making the continued use of SFT studies inevitable in many cases. We highlight that non-significant results and weak effects should be viewed with caution.
Journal Article
Luna and me : the true story of a girl who lived in a tree to save a forest
\"Social activism combines with environmentalism in this picture book bio of Julia Butterfly Hill and Luna, the thousand-year-old redwood tree whose life she saved\"-- Provided by publisher.
Book
Scaling up the assessment of logging’s impact on forest structure in Central Africa using field and UAV data
A third of the forest area in Central Africa has been granted to logging companies. Logging is highly selective in the region, with an average of 0.7–4.0 trees harvested per ha, but its direct impact on forest structure and the spatial variation of this impact remain understudied. Here, we investigated the direct impact of logging on forest structure, we related this impact to logging intensity and canopy opening. We compiled unique datasets collecting field measurements and aerial observations in four FSC certified concessions. Our data includes pre- and post-logging inventory of forest plots covering 38 ha, records of over 6000 harvested trees, and drone RGB images covering over 6000 ha. In average, logging activities reduced forest above-ground biomass by 8.8%, stem density by 6.5%, basal-area by 8.5% and canopy cover by 4.4%. Strong relationships were found between the reduction in biomass, stem density, or basal area with logging intensity, canopy opening and the number and volume of harvested trees (relative root mean squared error (rRMSE) between 0.128 and 0.164). Additionally, we demonstrated that canopy opening can be a good indicator to monitor and upscale logging intensity (rRMSE between 0.0005 and 0.0022). This study is the first covering extensive inventory plots and uninhabited aerial vehicle images before and after logging in different locations in Central Africa, providing a valuable reference to evaluate the impact of logging on forest structure. It demonstrates how canopy opening can be used to estimate measurements usually collected in the field and provides to the remote sensing community a unique dataset that will help improving monitoring systems (Dupuis et al 2024 (available at: https://hdl.handle.net/2268/323683)). These findings also have significant implications to control and manage logging activities, especially for certification standards, forest administrations, and European regulations.
Journal Article