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James Montgomery
University of Tasmania
MetaheuristicMachine learningMathematical optimizationComputer scienceDifferential evolution
78Publications
13H-index
588Citations
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Publications 71
Newest
#1James Watkins (UTAS: University of Tasmania)
#2James Montgomery (UTAS: University of Tasmania)H-Index: 13
Abstract Environmental sounds, such as bird calls, insects, animal and human activities, support monitoring the health of an area being listened to. Historically these observations needed to be made in the field, but in recent decades non-intrusive acoustic recorders can be deployed for long periods instead, reducing time spent in the field and increasing the volume of raw data collected. The volume of data that can be collected makes human-based processing impractical, so automated analysis app...
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#1Alexander Brown (UTAS: University of Tasmania)H-Index: 2
#2Saurabh Kumar Garg (UTAS: University of Tasmania)H-Index: 27
Last. James Montgomery (UTAS: University of Tasmania)H-Index: 13
view all 3 authors...
Abstract There has been increasing interest in using automated bioacoustics analysis to monitor the environment. This involves using computational approaches to identify animals and other environmental phenomena from the sounds that they generate. The volume of data being recorded for bioacoustics analyses is increasing, as the scale of environmental surveys is increasing. This presents significant computational demands to perform analyses. These large-scale analyses cannot be performed at feasi...
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#1Erfan Aghasian (UTAS: University of Tasmania)H-Index: 4
#2Saurabh Kumar Garg (UTAS: University of Tasmania)H-Index: 27
Last. James Montgomery (UTAS: University of Tasmania)H-Index: 13
view all 3 authors...
Abstract One of the common forms of data which is shared by online social media users is free-text formats including comments, posts, blogs and tweets. While users mostly share this unstructured data with their preferred social groups, this textual data may contain sensitive information such as their political or religious views, job details, their opinions and emotions and so on. Hence, sharing this unstructured data can escalate privacy risks and concerns for social media users. Analyses the p...
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#1Marcus Randall (Bond University)H-Index: 16
#2James Montgomery (UTAS: University of Tasmania)H-Index: 13
Last. Andrew Lewis (Griffith University)H-Index: 24
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Abstract Optimisation problems usually take the form of having a single or multiple objectives with a set of constraints. The model itself concerns a single problem for which the best possible solution is sought. Problems are usually static in the sense that they do not consider changes over time in a cumulative manner. Dynamic optimisation problems to incorporate changes. However, these are memoryless in that the problem description changes and a new problem is solved – but with little referenc...
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#1Rama Rao Kvsn (UTAS: University of Tasmania)
#2James Montgomery (UTAS: University of Tasmania)H-Index: 13
Last. Michael A. Charleston (UTAS: University of Tasmania)H-Index: 25
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Biodiversity monitoring has become a critical task for governments and ecological research agencies for reducing significant loss of animal species. Existing monitoring methods are time-intensive and techniques such as tagging are also invasive and may adversely affect animals. Bioacoustics based monitoring is becoming an increasingly prominent non-invasive method, involving the passive recording of animal sounds. Bioacoustics analysis can provide deep insights into key environmental integrity i...
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#1James Montgomery (UTAS: University of Tasmania)H-Index: 13
#2Marcus Randall (Bond University)H-Index: 16
Last. Andrew Lewis (Griffith University)H-Index: 24
view all 3 authors...
The automated design of meander line RFID antennas is a discrete self-avoiding walk (SAW) problem for which efficiency is to be maximized while resonant frequency is to be minimized. This work presents a novel exploration of how discrete local search may be incorporated into a continuous solver such as differential evolution (DE). A prior DE algorithm for this problem that incorporates an adaptive solution encoding and a bias favoring antennas with low resonant frequency is extended by the addit...
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#1Alexander Brown (UTAS: University of Tasmania)H-Index: 2
#2Saurabh Kumar Garg (UTAS: University of Tasmania)H-Index: 27
Last. James Montgomery (UTAS: University of Tasmania)H-Index: 13
view all 3 authors...
Recording and analysing environmental audio recordings has become a common approach for monitoring the environment. This has several advantages over other approaches, such as reducing costs by avoiding the need for experts to be present in the area of interest. A current problem with performing analyses of environmental recordings is interference from noise that can mask vocalisations of interest. This makes detecting these vocalisations more difficult and can require additional resources. While...
3 CitationsSource
#1Erfan Aghasian (UTAS: University of Tasmania)H-Index: 4
#2Saurabh Kumar Garg (UTAS: University of Tasmania)H-Index: 27
Last. James Montgomery (UTAS: University of Tasmania)H-Index: 13
view all 3 authors...
Recommender systems have become an integral part of many social networks and extract knowledge from a user’s personal and sensitive data both explicitly, with the user’s knowledge, and implicitly. This trend has created major privacy concerns as users are mostly unaware of what data and how much data is being used and how securely it is used. In this context, several works have been done to address privacy concerns for usage in online social network data and by recommender systems. This paper su...
3 CitationsSource
#1Daniel Ashlock (U of G: University of Guelph)H-Index: 27
#2Wendy AshlockH-Index: 10
Last. James Montgomery (UTAS: University of Tasmania)H-Index: 13
view all 3 authors...
This study compares an adaptive and a nonadaptive representation for finding long walks on obstructed grids. This process models adaption of a simple plant to an environment where the plant's ability to grow is impeded by obstructions such as resource poor areas like bare rock. The intent of the adaptive representation is to model the biological phenomenon of phenotypic plasticity in which gene regulation is at least partially in response to environmental cues, in this case the obstructions. The...
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