Cristian López 0001

dblp:132/7184 · also Cristian Jose López Del Alamo, Cristian López Del Alamo · DBLP profile ↗
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10ranked-venue papers
3as first author
3since 2021 · last 2024
0000-0002-2568-650XORCID · verified

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 6 · 3 first-author · 1 since 2021Software engineering, systems software and programming languages · 4 · 3 first-authorDatabases, data management, data science and information retrieval · 4 · 3 first-authorGraphics, computer vision, multimedia, augmented reality and games · 4 · 2 since 2021Human-computer interaction and ubiquitous computing · 1

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer graphics and multimedia
1 paper
Geometric modeling and processing · 100%
Interdisciplinary, comprehensive, and emerging computing
1 paper
Computational social science and digital humanities · 100%

Topics — the 3 heaviest of 3, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computational social science and digital humanities › cultural heritage
digital archaeology
0.612022
Data-Driven Restoration of Digital Archaeological Pottery with Point Cloud Analysis · Int. J. Comput. Vis. 2022
Geometric modeling and processing › point cloud processing
point cloud analysis
0.612022
Data-Driven Restoration of Digital Archaeological Pottery with Point Cloud Analysis · Int. J. Comput. Vis. 2022
Geometric modeling and processing › point cloud processing
point cloud restoration
0.612022
Data-Driven Restoration of Digital Archaeological Pottery with Point Cloud Analysis · Int. J. Comput. Vis. 2022

Methods — techniques the papers use, named apart from their topics

point cloud analysis · 1.1
YearPublicationVenuePosition
2024 Sharp feature-preserving mesh denoising
Jan Hurtado, Marcelo Gattass, Alberto Barbosa Raposo, Cristian López 0001
Multim. Tools Appl.4
2022 Data-Driven Restoration of Digital Archaeological Pottery with Point Cloud Analysis
Ivan Sipiran, Alexis Mendoza, Alexander Apaza, Cristian López 0001
Int. J. Comput. Vis.4
2021 SHREC 2021: Retrieval of cultural heritage objects
Ivan Sipiran, Patrick Lazo, Cristian López 0001, Milagritos Jimenez, Nihar Bagewadi, Benjamin Bustos, Hieu Dao, Shankar Gangisetty, Martin Hanik, Ngoc-Phuong Ho-Thi, Mike Holenderski, Dmitri Jarnikov, Arniel Labrada, Stefan Lengauer, Roxane Licandro, Dinh-Huan Nguyen, Thang-Long Nguyen-Ho, Luis A. Pérez Rey, Bang-Dang Pham, Reinhold Preiner, Tobias Schreck, Quoc-Huy Trinh, Loek Tonnaer, Christoph von Tycowicz, The-Anh Vu-Le
Comput. Graph.3
2019 Forecasting of Meteorological Weather Time Series Through a Feature Vector Based on Correlation
Mery Milagros Paco Ramos, Cristian López 0001, Reynaldo Alfonte Zapana
CAIP (1)2
2017 On Semantic Solutions for Efficient Approximate Similarity Search on Large-Scale Datasets
Alexander Ocsa, José Luis Huillca Mango, Cristian López 0001
CIARP3
2017 Developing a Holistic Understanding of Systems and Algorithms through Research Papers
abstract
Even though a computer science or computing-oriented degree is unavoidably broken into semesters and courses, we always hope that our students form a holistic picture of the discipline by the time they graduate. Yet we do not have too many opportunities to make this point in a convincing manner. The goal of this working group will be to address a well-defined portion of this problem: revealing the significant connections between algorithmic courses (such as Discrete Math, Data Structures, Algorithms) and systems oriented courses (such as Organization, Computer Networks, Operating Systems, and Hardware) that may be missed by students.
Ali Erkan, John Barr 0001, Tony Clear, Cruz Izu, Cristian López 0001, Hanan Mohammed, Nadimpalli V. R. Mahadev
ITiCSE5
2015 Efficient approach for interest points detection in non-rigid shapes
abstract
Due to the increasing amount of data and the reduction of costs in 3D data acquisition devices, there has been a growing interest, in developing efficient and robust feature extraction algorithms for 3D shapes, invariants to isometric, topological and noise changes, among others. One of the key tasks for feature extraction in 3D shapes is the interest points detection; where interest points are salient structures, which can be used, instead of the whole object. In this research, we present a new approach to detect interest points in 3D shapes by analyzing the triangles that compose the mesh which represent the shape, in different way to other algorithms more complex such as Harris 3D or HKS. Our results and experiments of repeatability, confirm that our algorithm is stable and robust, in addition, the computational complexity is O(n log n), where n represents the number of faces of the mesh.
Cristian López 0001, Luciano Arnaldo Romero Calla, Lizeth Joseline Fuentes Perez
CLEI1
2015 3D mesh interest point detection using GISIFs and heat diffusion
abstract
To facilitate processing of 3D objects is common to use high-level representations. The interest points are one of them. An interest point should possess a distinctive feature regarding its locality and should be stable in different instances of the object. This article proposes a descriptor based on symmetry (GISIFs) and heat diffusion (HKS). From this features, we select a set of representative points. The GISIFs referenced in this article has not been used to extract local features. We compare our results with the results of other techniques, which make up the state of the art in interest point detection. We use a benchmark that evaluates the accuracy of the selected points with respect to an ideal set of interest points.
Jan Hurtado, Madeley Coaquira, Cristian López 0001
CLEI3
2013 A novel approach for image feature extraction using HSV model color and filters wavelets
abstract
Due to the advancement of computing and the power of the new hardware, more economical, it is now feasible to have thousands of images which can be analyzed to allow classification for its shape and/or color. Furthermore, techniques and efficiency of the classification depends on the characteristics to be obtained of images in order to compare and classify them according to their similarity. Some images, such as model cars, planes and boats, can be discriminated by their shape. However, other images such as butterfly species where the shape is similar, the color plays an important role in the discrimination task. In this research we propose a novel approach to extract distinctive features of images by combining the HSV color model and wavelets filters. Furthermore, we investigate the best combination of features color and form. Experiments have shown improved performance by combining the HSV color model with Gabor wavelets.
Cristian López 0001, Lizeth Joseline Fuentes Perez, Luciano Arnaldo Romero Calla, Wilber Ramos Lovón
CLEI1
2012 Discovery of patterns in software metrics using clustering techniques
abstract
One mechanism for estimating software quality is through the use of metrics, which are functions that evaluates certain characteristics of the product quality development. A software product can be evaluated from different points of view, and in that sense, the results of the evaluations are numeric vectors, which together describe the quality of the software. This research uses data from NASA's open access which undergo a process of reducing the dimensionality by principal component analysis (PCA), then applied three clustering techniques and evaluates the best grouping using Rand Index. Finally, the top clusters are tested with regression to find the metrics that are related to the error of the Software. The results suggest that groups consisting of software modules whose code source have a higher average of blank lines, show a higher density of error. This could be interpreted as an indication of the order of implementation. On the other hand, shows the presence of a direct relationship between the number of errors in a module with the number of calls functions to other modules. The contribution of this work is related to the use of assessment techniques of clustering, dimensionality reduction, clustering algorithms and regression to discover patterns in software metrics a rigorous manner.
Cristian López 0001, Diego Alberto Aracena Pizarro, Ricardo Valdivia Pinto
CLEI1