Rajesh Biswal

Tecnológico de Monterrey | ITESM · matematica y ciencia de datos

In Distributed Hash Table (DHT)-based Mobile Ad Hoc Networks (MANETs), a logical structured network (i.e., follows a tree, ring, chord, 3D, etc., structure) is built over the ad hoc physical topology in a distributed manner. The logical structures guide routing processes and eliminate flooding at the control and the data plans, thus making the syst...

The defocus or motion effect in images is one of the main reasons for the blurry regions in digital images. It can affect the image artifacts up to some extent. However, there is a need for automatic defocus segmentation to separate blurred and sharp regions to extract the information about defocus-blur objects in some specific areas, for example,...

The ever-growing ecosystem of the Internet of Things (IoT) integrating with the ever-evolving wireless communication technology paves the way for adopting new applications in a smart society. The core concept of smart society emphasizes utilizing information and communication technology (ICT) infrastructure to improve every aspect of life. Among th...

Driver's stress detection is a critical research area that helps reduce the likelihood of traffic accidents and driver's health complexities due to prolonged stress. Previous work in this area is heavily based on traditional machine learning models that classify the driver's stress levels using handcrafted features extraction techniques. Extracting...

The decision process of purchasing fresh fruit that meets export criteria is a complex problem that directly involves the efficient management of the agri-food supply chain. Although this issue has been adequately addressed in the manufacturing and service industries, studies in agri-food chains have been scarce and therefore have gained the intere...

Acute Myeloid Leukemia (AML) is a kind of fatal blood cancer with a high death rate caused by abnormal cells’ rapid growth in the human body. The usual method to detect AML is the manual microscopic examination of the blood sample, which is tedious and time-consuming and requires a skilled medical operator for accurate detection. In this work, we p...

In recent times, computational studies have emerged as a viable alternative for complementing the efforts of experienced radiologists in disease diagnosis. Computed tomography (CT) studies are a common way of predicting the lung nodule malignancy for the early diagnosis and treatment of lung cancer in patients. Early detection of the type of nodule...

Undoped and nickel-doped zinc oxide thin films were deposited on sodalime glass substrates by utilizing dip coating and ultrasonic spray pyrolysis deposition techniques. In both cases zinc acetate and nickel acetylacetonate were used as zinc precursor and nickel dopant source, respectively. XRD analysis confirms the ZnO wurtzite structure with (002...

Recientemente ha habido un progreso continuo en el análisis de tomografía computarizada (TC) de tórax para ayudar en la detección y clasificación de nódulos pulmonares debido a su relación con el cáncer de pulmón. Identificar el tipo de nódulo es clave para determinar el tratamiento adecuado, lo cual permite aumentar la supervivencia y reducir alte...

The evolution of biomedical imaging and computer systems has allowed continued progress in computer-aided diagnostic (CAD) systems. The integration of machine learning in CAD systems has shown a significant advance in diagnostic accuracy in various tasks such as organ segmentation, pathology detection, and classification. However, there is still a...

The diagnosis of pulmonary nodules plays an important role in the treatment of lung cancer, thus improving the diagnosis is the primary concern. This article shows a comparison of the results in the identification of computed tomography scans with pulmonary nodules, through the use of different optimizers (Adam and Nadam); the effect of the use of...

In recent years, the analysis and processing of biomedical images had considerable relevance, as it has proven to be an effective way of obtaining information regarding human body in a less invasive way and thus helps in extracting the characteristics that could potentially represent a disease. Different aspects of segmentation algorithms and featu...

With the growing information on web, online movie review is becoming a significant information resource for Internet users. However, online users post thousands of movie reviews on daily basis and it is hard for them to manually summarize the reviews. Movie review mining and summarization is one of the challenging tasks in natural language processi...

Codoped Fe–Ni zinc oxide (ZnO:Fe:Ni) thin films have been deposited successfully on bare soda-lime glass substrates by the ultrasonic chemical spray technique. Zinc acetylacetonate hydrate was selected as Zn source and nickel acetylacetonate and iron chloride as doping sources. Structural, morphological, and optical characterizations were done for...

Coffee production is one of the main sources of income mainly in developing countries, but this production can be reduced by the presence of diseases that could occur on coffee farms bringing with them, losses considerable in the local economy. Iron stain is known to be one of many causing diseases, and that making a diagnosis requires expert staff...

In order to realize climate prediction or weather forecast, there exist large and expensive meteorological stations which monitor various weather variables, such as temperature, wind speed, humidity, etc. However, these prediction systems are deployed to monitoring urban zones or large population areas. Therefore, predictions for communities far fr...

Los nódulos pulmonares son manchas o lesiones que se diagnostican en los pulmones y pueden tener tanto causas benignas como malignas, principalmente relacionadas con cáncer de pulmón. En México, de acuerdo con estadísticas, el cáncer de pulmón se ubica en el séptimo lugar y es el más letal. Diversas instituciones médicas internacionales trabajan pa...

Machine learning, one of the core disciplines of artificial intelligence, is an approach whose main emphasis is analytical model building. In other words, machine learning enables an automaton to make its own decisions based on a previous training process. Machine learning has revolutionized every research sector, including health care, by providin...

Here, we have reported the thin film preparation of undoped zinc oxide thin films by ultrasonic spray pyrolysis and their gas response characteristics of carbon monoxide (CO). Four thin films of zinc oxide (ZnO) were deposited on glass substrates using a starting solution prepared from a ball milled precursor. A 0.2 M of zinc precursor (zinc acetyl...

A study on the propane gas-sensing properties of Cu-doped ZnO thin films is presented in this work. The films were deposited on glass substrates by sol-gel and dip coating methods, using zinc acetate as a zinc precursor, copper acetate and copper chloride as precursors for doping. For higher sensitivity values, two film thickness values are control...

Transparent and conductive Indium-doped zinc oxide (ZnO:In) thin films were deposited on glass substrates by the ultrasonic spray pyrolysis technique. ZnO:In thin films were prepared by mixing 0.2M zinc acetate and 0.2M indium sulphate dissolved in a mixture of water, acetic acid and methanol. Indium sulphate which acts as the In source was chosen...

In-doped ZnO (IZO) thin films have been deposited onto glass substrates by the ultrasonic spray pyrolysis method. The variations of the electrical and optical properties with the indium incorporation were investigated. The optical transmittance through the films was measured in the wavelength range 300-1000 nm with the help of an UV-VIS spectrophot...

Conductive and transparent Indium-doped zinc oxide (ZnO:In) thin films were deposited on glass substrates by the ultrasonic spray pyrolysis technique. Films were prepared from 0.2 M starting solutions of zinc acetate dissolved in a mixture of water, acetic acid and methanol. Indium acetate was used as In source at three different atomic concentrati...

Indium doped zinc oxide [ZnO:In] thin films have been deposited at 430 degrees C on soda-lime glass substrates by the chemical spray technique, starting from zinc acetate and indium acetate. Pulverization of the solution was done by ultrasonic excitation. The variations in the electrical, structural, optical, and morphological characteristics of Zn...

Fluorine doped zinc oxide thin films, ZnO:F, were deposited on sodocalcic glass substrates, starting from zinc pentanedionate and hydrofluoric acid, by the chemical spray technique. The effect of the aging time of the starting solution on the electrical, structural, morphological and optical characteristics of the ZnO thin films was studied. Unifor...