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.
Results
Showing 1 to 20 of 291 for “"False positives"”.
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Reducing false positives for object detection
… detectors and observe that most hard false positives result from classification instead of localization and they have a large negative impact on the performance of object detectors. We conjecture three factors that lie behind hard false positives, and we confirm the conjecture with …
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Identifying Exoplanets and Unmasking False Positives with NGTS
… to 1) estimate NGTS’ yield of planets and false positives; 2) disentangle planets from false positives; and 3) accurately characterise planets. If an exoplanet passes (transits) in front of its host star, we can measure a periodic decrease in brightness. The study of transiting exoplanets …
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Mining intrusion detection alert logs to minimise false positives & gain attack insight
… be improved by eliminating the large volume of false positive alerts contained in intrusion detection logs. We investigate probabilistic alert correlation, an alternative to traditional rule based correlation approaches. We hypothesise that probabilistic alert correlation aids in discovering and …
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Representing shortest paths in graphs using Bloom filters without false positives and applications to routing in computer networks
… save time and space, but produce errors known as false positives. In this thesis, a new approach is suggested. Instead of choosing labels for edges in graphs at random (as is done in the standard Bloom filter approach), labels for edges are chosen based on the graph and the position of an edge in …
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Referrals from Primary Eye Care: An Investigation into their quality, levels of false positives and psychological effect on patients.
… of referrals to the Hospital Eye Service are false positive. Research in areas of healthcare other than ophthalmology has shown that psychological distress can be caused by false positive referrals. The present study aimed to evaluate the quality of referrals to the HES for all ocular …
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Modeling image-to-image confusions in memory
… these experiments, participants sometimes create false positives when identifying images they have seen before, but the precise cause of these false positives has remained unclear. We examine confusions between individual images as a possible cause of these false positives. We first introduce a …
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Developing a Contextual Annotation Framework for Short Linear Motifs in Proteins
… and high prevalence across the proteome. Many false positives—sequences that match the pattern of the SLiM but are not involved in the biological functions typically associated with SLiMs—complicate this task. Distinguishing functional SLiMs from false positives requires an approach that …
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Identifying and documenting false positive patterns generated by static code analysis tools
… tools are known to flag a large number of false positives. A false positive is a warning message generated by a static code analysis tool for a location in the source code that does not have any known problems. This thesis presents our approach and results in identifying and documenting …
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Geometric Verification of Image Copy Detection Results
… the interest points, so to reduce the number of false positives, geometric verification is used to identify and reject image pairs that do not fit into an expected geometric pattern. Designing a good geometric verification requires finding a balance between false positives and false negatives, …
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SHM Racer : dynamic race condition detection using shared memory traps
… tools, and construct a tool that could minimize false positive race errors while maximizing the number of found data races. Race condition detection using static analysis can log false positives/false negatives due to a missed understanding of complex synchronization patterns. Dynamic analysis …
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Nutrition Support and Newborn Screening in the NICU Population: Is There a Link?
… Recent research is revealing the high rate of false-positive screening results for IEMs in the NICU population. No study published to date has specifically studied the possible relationship between nutrition and newborn screening in this population. Objective: It is suspected that NICU infants …
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Designing Human-AI Collaborative Systems for Historical Photo Identification
… facial recognition candidates while avoiding false positives. To assist experts, I developed Second Opinion, an online tool that employs a novel crowdsourcing workflow, inspired by cognitive psychology, effectively filtering out up to 75% of facial recognition's false positives. Yet, as AI …
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Target detection in clutter for sonar imagery
… a set of detections. Some of these are true positives, and correspond to real objects. Others are false positives, and do not correspond to real objects. The present object detectors suffer from a high false positive rate in complex environments, that is to say, complex types of seabed. The …
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Taming implicit synchronizations in concurrent programs
… identify 96% of ad hoc synchronizations with 6% false positives. The dissertation also uses two use cases to leverage SyncFinder’s auto-annotation. The first one uses annotation to detect 5 deadlocks (including 2 new ones) and 16 potential issues missed by previous analysis tools in Apache, MySQL …
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Validation and Comparison of Two Sensory Perceptual Examinations
… procedures were compared on the occurrence of false positives and false negatives. Both procedures yielded no false positives and a small incidence (6%) of false negatives; both procedures were valid. Subtests involving the same variables were then compared. The comparison revealed that in the …
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Memory leak Masking Using Dual Heap Organization
… ability of each method to detect leaks generate false positives and false negatives. In comparison, the dual heap implementation showed a relatively better performance than the aging algorithm. The dual heap implementation is shown to produce less false positives and less false negatives. It has …
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Computer-assisted de-identification of free-text nursing notes
… that inter-human variability was high, with few false positives and many false negatives. A preliminary automated de-identification algorithm generated few false negatives but many false positives. A second automated algorithm was developed using the successful portions of the first algorithm and …
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Effects of an educational intervention on nurse practitioners' clinical breast examination techniques and ability to detect lumps in silicone breast models
… number of lumps detected, and number of false positives identified. Results indicated that the educational intervention significantly improved both the CBE technique and number of lumps correctly identified. The third analysis indicated no significant difference in the educational …
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