Bishnu Prasad Gautam

Prof. Bishnu Prasad Gautam

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Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 April 2023 in Sustainability
Verified
Journal Article
Open access
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SSSandhya Sharma
Sandhya Sharma
KSKazuhiko Sato
Kazuhiko Sato
BGBishnu Prasad Gautam
Bishnu Prasad Gautam
Artificial intelligence (AI) has become a significantly growing field in the environmental sector due to its ability to solve problems, make decisions, and recognize patterns. The significance of AI in wildlife acoustic monitoring is particularly important because of the vast amounts of data that are available in this field, which can be leveraged for computer vision and interpretation. Despite the increasing use of AI in wildlife ecology, its future in acoustic wildlife monitoring remains uncertain. To assess its potential and identify future needs, a scientific literature review was conducted on 54 works published between 2015 and March 2022. The results of the review showed a significant rise in the utilization of AI techniques in wildlife acoustic monitoring over this period, with birds (N = 26) gaining the most popularity, followed by mammals (N = 12). The most commonly used AI algorithm in this field was Convolutional Neural Network, which was found to be more accurate and beneficial than previous categorization methods in acoustic wildlife monitoring. This highlights the potential for AI to play a crucial role in advancing our understanding of wildlife populations and ecosystems. However, the results also show that there are still gaps in our understanding of the use of AI in wildlife acoustic monitoring. Further examination of previously used AI algorithms in bioacoustics research can help researchers better understand patterns and identify areas for improvement in autonomous wildlife monitoring. In conclusion, the use of AI in wildlife acoustic monitoring is a rapidly growing field with a lot of potential. While significant progress has been made in recent years, there is still much to be done to fully realize the potential of AI in this field. Further research is needed to better understand the limitations and opportunities of AI in wildlife acoustic monitoring, and to develop new algorithms that can improve the accuracy and usefulness of this technology.

24 April 2023 in Applied Sciences
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Journal Article
Open access
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YHYojiro Harie
Yojiro Harie
BGBishnu Prasad Gautam
Bishnu Prasad Gautam
KWKatsumi Wasaki
Katsumi Wasaki
Growth prediction technology is not only a practical application but also a crucial approach that strengthens the safety of image processing techniques. By supplementing the growth images obtained from the original images, especially in insufficient data sets, we can increase the robustness of machine learning. Therefore, predicting the growth of living organisms is an important technology that increases the safety of existing applications that target living organisms and can extend to areas not yet realized. This paper is a systematic literature review (SLR) investigating biological growth prediction based on the PRISMA 2020 guidelines. We systematically survey existing studies from 2017 to 2022 to provide other researchers with current trends. We searched four digital libraries—IEEE Xplore, ACM Digital Library, Science Direct, and Web of Science—and finally analyzed 47 articles. We summarize the methods used, year, features, accuracy, and dataset of each paper. In particular, we explained LSTM, GAN, and STN, the most frequently used methods among the 20 papers related to machine learning (40% of all papers).

26 May 2024 in Electronics
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Journal Article
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SSSandhya Sharma
Sandhya Sharma
STSuresh Timilsina
Suresh Timilsina
BGBishnu Prasad Gautam
Bishnu Prasad Gautam
Shinya WatanabeShinya Watanabe
Shinya Watanabe
SKSatoshi Kondo
Satoshi Kondo
KSKazuhiko Sato
Kazuhiko Sato
Accurately identifying individual wildlife is critical to effective species management and conservation efforts. However, it becomes particularly challenging when distinctive features, such as spot shape and size, serve as primary discriminators, as in the case of Sika deer. To address this challenge, we employed four different Convolutional Neural Network (CNN) base models (EfficientNetB7, VGG19, ResNet152, Inception_v3) within a Siamese Network Architecture that used triplet loss functions for the identification and re-identification of Sika deer. Subsequently, we then determined the best-performing model based on its ability to capture discriminative features. From this model, we extracted embeddings representing the learned features. We then applied a Support Vector Machine (SVM) to these embeddings to classify individual Sika deer. We analyzed 5169 image datasets consisting of images of seven individual Sika deers captured with three camera traps deployed on farmland in Hokkaido, Japan, for over 60 days. During our analysis, ResNet152 performed exceptionally well, achieving a training accuracy of 0.97, and a validation accuracy of 0.96, with mAP scores for the training and validation datasets of 0.97 and 0.96, respectively. We extracted 128 dimensional embeddings of ResNet152 and performed Principal Component Analysis (PCA) for dimensionality reduction. PCA1 and PCA2, which together accounted for over 80% of the variance collectively, were selected for subsequent SVM analysis. Utilizing the Radial Basis Function (RBF) kernel, which yielded a cross-validation score of 0.96, proved to be most suitable for our research. Hyperparameter optimization using the GridSearchCV library resulted in a gamma value of 10 and C value of 0.001. The OneVsRest SVM classifier achieved an impressive overall accuracy of 0.97 and 0.96, respectively, for the training and validation datasets. This study presents a precise model for identifying individual Sika deer using images and video frames, which can be replicated for other species with unique patterns, thereby assisting conservationists and researchers in effectively monitoring and protecting the species.

1 November 2021
Verified
Conference Paper
Closed access
YHYojiro Harie
Yojiro Harie
SNSangam Babu Neupane
Sangam Babu Neupane
BGBishnu Prasad Gautam
Bishnu Prasad Gautam
SNShiratori Norio
Shiratori Norio
Wild Deer’s grazing in farmers and villager’s field has caused serious troubles for the residents and concerned authorities here in Northern Hokkaido of Japan. Furthermore, the number of deer in northern Japan is increasing rapidly leading to increment in road accidents which is also becoming a serious problem that needs to be handled. Several procedures have been followed to avoid or at least minimize the destruction caused by the white-tailed deer, but a solid solution is yet to be found. To this context, we are proposing a highly effective solutions to identify the individual wild deer and pinpoint the most trouble causing group of deer’s using augmented triplet network, a novel technique of computer vision. Initially the deer are recognized and classified individually which will help us track the deer and know the behavior of the deer in depth. Our research method identifies individual deer using several steps where we initially take video feed which is further divided into several frames. The extracted frames are then cleaned and processed for the training efficiency. The cleaned frames are then sent to the Convolution Network where the Nested triplet loss is calculated for the maximum accuracy.

9 December 2024 in Electronics
Verified
Journal Article
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SSSandhya Sharma
Sandhya Sharma
BPBuchaputara Pansri
Buchaputara Pansri
STSuresh Timilsina
Suresh Timilsina
BGBishnu Prasad Gautam
Bishnu Prasad Gautam
YOYoshifumi Okada
Yoshifumi Okada
KSKazuhiko Sato
Kazuhiko Sato
Agricultural loss due to the overpopulation of Sika deer poses a significant challenge in Japan, leading to frequent human–wildlife conflicts. We conducted a study in Muroran, Hokkaido (42°22′56.1″ N–141°01′51.5″ E), with the objective of monitoring Sika deer and notifying farmers and locals. We deployed a Sika deer detection model (YOLOv8-nano) on a Raspberry Pi, integrated with an infrared camera that captured images only when a PIR sensor was triggered. To further understand the timing of Sika deer visits and potential correlations with environmental temperature and humidity, respective sensors were installed on Raspberry Pi and the data were analyzed using an ANOVA test. In addition, a buzzer was deployed to deter Sika deer from the study area. The buzzer was deactivated in the first 10 days after deployment and was activated in the following 20 days. The Sika deer detection model demonstrated excellent performance, with precision and recall values approaching 1, and a bounding box creation latency of 0.82 frames per second. Once a bounding box was established after Sika deer detection, alert notifications were automatically sent via email and the LINE messaging application, with an average notification time of 0.32 s. Regarding the buzzer’s impact on Sika deer, 35% of the detected individuals reacted by standing upright with alert ears, while 65% immediately fled the area. Analysis revealed that the time of day for Sika deer visits was significantly correlated with humidity (F = 8.95, p < 0.05), but no significant association with temperature (F = 0.681, p > 0.05). These findings represent a significant step toward mitigating human–wildlife conflicts and reducing agricultural production losses through effective conservation measures.

1 October 2017
Verified
Conference Paper
Closed access
BGBishnu Prasad Gautam
Bishnu Prasad Gautam
ABAmit Batajoo
Amit Batajoo
HAHiroyasu Asami
Hiroyasu Asami
The concept of trip planning is not a new idea. However, a cost effective accommodation planning could be a complex task yet vital part of a trip in order to make it a successful travelling experience. This is very essential while a visitor plan a trip with a limited budget and time. In this study we have developed an algorithm that can be applied for such kind of travelers providing them for a cost effective accommodation during their travel. The difficulty of accommodation planning increases while the users have problems in selecting and deciding a proper accommodation plan that can satisfy their requirement. This may go further complicated while the trip is associated with more complex options. In order to address such kind of problem, we utilize a skyline query processing technique that can retrieve the best possible list of accommodations from the accommodation set. In this paper, we implemented the accommodation advisor query (AA-Query) based upon the skyline algorithm. By using our method travelers would be able to make a free decision for the most appropriate and cost effective accommodation plan. We have named this query AA-Query by which the users accommodation plans are recommended. AA-Query can reduce unnecessary numbers of options from the list of recommendations so that travelers can come up with appropriate accommodation plan without investing much time during his plan. It has been implemented as an integral part of smart tourism application previously known as STPF (Smart Tourism Process Framework) thereby enhancing the quality of tour. In this case also, the list of services may not guarantee and satisfy the need of users if the accommodation are dynamically added into the data set. In this paper, we propose an approach based on the concept of recommendation and skyline to effectively and efficiently retrieve services from the dataset and recommend the users for the best candidate. Furthermore, we also discuss how AA-query in a relational database can extract the set of preferable services so that those services can be included into the list of service recommendation of STPF (Smart Tourism Process Framework).