Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 39 for “"Log analysis"”.
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A layered architecture for log analysis in complex IT systems
… rapidly evolving landscape of Information Technology (IT), the stability and reliability of IT systems and services are important because they underpin numerous aspects of modern life. However, their increasing complexity poses significant challenges for DevOps teams, who are responsible for …
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Understanding Storage System Problems and Diagnosing Them Through Log Analysis
Nowadays, over 90% new information produced are stored on hard disk drives. The explosion of data is making storage system a strategic investment priority in the enterprise world. The revenue created by storage system industry steadily increases from $14.2 Billion in 2004 to over $18.4 Billion in …
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An integrated seismic and well log analysis for the estimation of reservoir properties
… seismic data, and a priori knowledge of the geological setting of the region, but also it develops means for utilizing these sources of information in a unified manner that gives rise to a coherent framework for relating these sources of information to yield an integrated reservoir model. We …
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Elastic properties of salt: laboratory measurements, well-log analysis, and a seismic survey over the Hockley Salt Mine, Texas
Salt plays a significant part in the geology of the Gulf of Mexico area (GoM). Numerous basins in the world have undergone evaporation sequences that have deposited vast quantities of salt. Sometimes these deposits have remained largely undeformed, which can lead to anisotropic crystal growth, …
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B-Value Analysis of Microseismic Events Observed on Three Wellpads in the Horn River Basin
An extensive b-value power law analysis is carried out on a large dataset of microseismic events accumulated from over 300 stages during the hydraulic fracture treatment of three wellpads in the Horn River basin. This analysis is carried out on three different length scales: the single stage level, …
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Interpretation and Fracture Characterization of Early-Cretaceous Buda Limestone Formation Using Post-Stack 3D Seismic Data in Zavala County, Texas
… for producers to identify these zones using well log and post stack 3D seismic data typically available to medium or small exploration companies. This project provides a workflow based on well log analysis tied to seismic acoustic impedance (AI) inversion to locate areas of probable natural …
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Analysis of Search on Clinical Narrative within the EHR
… the EHR. It is comprised of a retrospective log analysis of search log files and a survey that was administered to clinical professionals within our institution. The log analysis attempts to categorize how users of a search system query for information, and the survey tries to understand …
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Pattern discovery in structural databases with applications to bioinformatics
… in bioinformatics, XML processing, Web log analysis, and so on. In this thesis, two new FSM techniques are proposed for finding patterns in unordered labeled trees. Such trees can be used to model evolutionary histories of different species, among others. The first FSM technique finds …
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Processing Case Study with AVO and Pore Pressure Analyses: Eugene Island, Gulf of Mexico
… include seismic data-processing attributes, well-log calibration, and AVO (Amplitude Versus Offset) and pore pressure analyses. While the supporting theory for each method has been well established, an integration of the methods to a real exploration project can be confusing for the uninitiated. …
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Frequent Inventory of Network Devices for Incident Response: A Data-driven Approach to Cybersecurity and Network Operations
… prototype of a system for associating relevant log events to one or more responsible people. The prototype reduces the need for human-driven updates while enriching the dynamic host inventory with additional information. It also shows the value of associating application and service …
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Analysis of effect of using estimated shear wave data as compared to measured compressional and shear wave sonic log
… data. Measured data collected at the point of logging can be fraught with errors that can lead to wrong interpretation. One of such data is the shear wave velocity which in most cases is collected with the compressional wave velocity. The measured shear wave velocity log may contain errors that …
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Measuring the Software Development Process to Enable Formative Feedback
… empirical software engineering methods like IDE-log analysis, software repository mining, and semi-structured interviews with students to identify effective and ineffective software practices to formulate. Using the results of these analyses, I have worked on assessing students' development in …
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Integrated geological and petrophysical investigation on carbonate rocks of the middle early to late early Canyon high frequency sequence in the Northern Platform area of the SACROC Unit
… defined based on rock fabrics by integrating log and core based petrophysical analysis in high-frequency cycle (HFC) scale sequence stratigraphic framework and to improve our ability to understand static and dynamic petrophysical properties of these reservoir rock types, and there by, improve …
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An approximate search engine for structure
… in these databases. However, searching by topological or physical structure, especially for large databases and especially for approximate matches, is still an art. In this dissertation, efficient search techniques are presented for retrieving trees from a database that are similar to a given …
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Using access information in the dynamic visualisation of web sites
Log file analysis provides a cost-effective means to detennine web site usage. However, current methods of displaying log analysis results tend to be limited in that they either contain no reference to a web site's structure, or else they portray this structure as a standard graph or tree. This …
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Visual exploratory analysis of large data sets : evaluation and application
… has been proposed to assist exploratory data analysis (EDA) as our visual systems can process signals in parallel to quickly detect patterns. Nonetheless, designing an effective visual analytic tool remains a challenge. This challenge is partly due to our incomplete understanding of how common …
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An experimental investigation on Archie parameters at ambient and overburden conditions of clean reservoir rocks.
… can arise if conditions used for the core analysis differ widely from those in the formation. The classical Archie's equation does not take into account the effects of these variables, and therefore it is recommended that the saturation exponent to be used in log analysis should be …
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Using Corpora with Taiwanese college students in a Student-centred
… feedback, pre-test and post-test, and query log analysis were adopted as instruments to verify the results. The results show that the intermediate leveled students preferred Total Recall to Tango because they are dependent on the Chinese translation in the bilingual corpus to help them …
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Structural Anomaly Detection
… intrusion detection systems that rely on log analysis struggle to keep pace with these evolving threats, as the attacking trails are often buried in high-volume and high-velocity legitimate activities in the system. Despite tremendous progress in applying machine learning techniques to …
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3-D seismic characterization of the Niobrara Formation, Silo field, Laramie County, Wyoming
… integrated previous work, 3-D seismic, and FMI log analysis in order to determine the nature of faulting and fracturing in Silo Field, the nature of the Permian salt edge, and how basement structure tied in with the observed features. The main features observed in the seismic data were: a …
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