Luis Rojas

Dr. Luis Rojas

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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21 December 2023 in IEEE Access
Verified
Journal Article
Open access
SSSebastián Espinoza Silva
Sebastián Espinoza Silva
CACristhian Aguilera
Cristhian Aguilera
LRLuis Rojas
Luis Rojas
PCPedro G. Campos
Pedro G. Campos
The application of Deep Learning models in fruit analysis has garnered significant attention due to its potential to revolutionize the agricultural sector and enhance crop monitoring. This paper presents a comprehensive review of recent research efforts in fruit analysis using Deep Learning techniques. The study delves into model selection, dataset characteristics, evaluation metrics, challenges, and future directions in this domain. Various model architectures, including classical Convolutional Neural Networks (CNNs) and advanced detection models like R-CNN and YOLO, have been explored for tasks ranging from fruit classification to detection. Evaluation metrics such as precision, recall, F1-score, and mean Average Precision (mAP) have been commonly used to assess model performance. Challenges, including data scarcity, labeling complexities, variations in fruit characteristics, and computational efficiency, have been identified and discussed. The paper also presents an overview of available datasets, encompassing both proprietary and publicly accessible sources. Future research directions involve exploring enhanced data augmentation, multi-modal integration, knowledge transfer across species, robustness in dynamic environments, improved computational efficiency, and practical integration of models into real-world agricultural systems. This review provides valuable insights for researchers and practitioners aiming to leverage Deep Learning for fruit analysis in the pursuit of sustainable agriculture and food production.

9 December 2024 in Neurocomputing
Verified
Journal Article
Closed access
FLFei Luo
Fei Luo
BZBaojun Zhao
Baojun Zhao
JFJoel Fuentes
Joel Fuentes
XZXueqin Zhang
Xueqin Zhang
WDWeichao Ding
Weichao Ding
LRLuis Rojas
Luis Rojas


16 December 2022 in IEEE Access
Verified
Journal Article
Open access
LRLuis Rojas
Luis Rojas
COCristian Olivares-Rodríguez
Cristian Olivares-Rodríguez
CAClaudio Alvarez
Claudio Alvarez
PCPedro G. Campos
Pedro G. Campos
Requirements prioritization is an activity aimed at determining the essential requirements to include in a software release. Although there are several prioritization methods to systematize this task, there are still unresolved challenges. Existing methods do not guarantee that requirements prioritization meets stakeholder expectations and goals. This is because most prioritization methods operate by considering only quantitative information, making it difficult to formally capture stakeholder interests and perspectives that can rather be made explicit in qualitative terms. Likewise, methods including qualitative information only consider elements associated with benefit estimation, that is, positive aspects of the project, but neglect costs or negative aspects. As a result, the prioritization process is driven by a partial view of constraints. Such methods also fail at capturing and combining expert knowledge that decision-makers can bring into the decision-making process. In this research, we propose a novel method for software requirements prioritization, which facilitates incorporating experts’ qualitative assessment at the outset of the prioritization process and considers both benefit and cost constraints. Details of the method are presented, together with a case study describing a real application scenario. Recommendations and guidelines regarding the application of the method are proposed based on the results of the case study.

10 July 2020
Verified
Book Chapter
Closed access
PDF file
MGMilda Galkute
Milda Galkute
LRLuis Rojas
Luis Rojas
VMVictor A. Sagal M.
Victor A. Sagal M.