Presentation of the bachelor's thesis by Mr. Ahmad Mohammad:
"Sachlich und zeitlich getrennte Disaggregation von Kennzahlwerten in einer Planungslösung am Beispiel von SAP IBP"
Advisor: Prof. Dr. Jürgen Hesser
Abstract:
In der aktuellen Lösung von SAP Integrated Business Planning for supply chain (SAP IBP), Version 2208, erfolgt die Disaggregation von sachlich und zeitlich aggregierten Kennzahlwerten auf alle Kombinationen der untergeordneten Zeitperioden und sachlichen Attributen in einem Schritt. Wird zum Beispiel ein Wert für eine Produktgruppe, die 5 Produkte enthält, und eine Kalenderwoche auf die dazugehörigen Attribute verteilt, dann wird der Wert in einem Schritt auf die 5 Produkte * 7 Tage = 35 untergeordneten Knoten disaggregiert. Das ist zwar schneller als zunächst zeitlich und danach sachlich, oder umgekehrt, zu verteilen. Kunden wünschen sich aber für bestimmte Use Cases eine flexiblere Lösung. Ein Beispiel ist die Resteverteilung. In dieser Arbeit beschäftige ich mich damit, in welchen Fällen eine sachlich und zeitlich getrennte Disaggregation sinnvoll ist und welche Anforderungen an die Implementierung daraus simulieren. Mit einem Prototyp in Form eines SQL-Konsolen-Skripts simuliere ich eine sachlich und zeitlich getrennte Disaggregation. Dafür nutze ich unterschiedliche Methoden der Simulation Engine und entwickle zwei unterschiedliche Lösungsansätze, die ich abschließend bewerte. Das Ergebnis ist eine zeitlich und sachlich getrennte Disaggregation, die einen flexiblen Lösungsansatz für das untersuchte Szenario liefert.
The presentation takes place on Monday, April 3rd, 2023, at 3 pm via https://heiconf.uni-heidelberg.de/hes-32w-u4v.
Presentation of the bachelor's thesis by Mrs. Lucy Marmé:
"A Bootstrap Approach for Classifying Political Tweets into Policy Fields"
Presentation of the master's thesis by Mr. Fabian Kneissl:
"Time-Dependent Graph Modeling of Twitter Conversations"
Advisor: Prof. Dr. Michael Gertz
The presentation takes place on Monday, April 3rd, 2023 at 2 pm online via Webex. If you are interested in participating at the presentation, please send a short message to gertz@informatik.uni-heidelberg.de.
Presentation of the bachelor's thesis by Mr. Hossein Samieadel:
"Kernelization"
Advisor: Prof. Dr. Wolfgang Merkle
Abstract: Several standard examples for kernelizaton techniques in the field of fixed-parameter tractability are presented.
The presentation takes place on Monday, March 27, 2023 in room 1 in INF 205 (Mathematikon, second floor).
Presentation of the bachelor's thesis by Mr. Derin Theiventhiram:
"Simulation einer vaskulären Intervention mittels einer Game Engine"
Advisor: Prof. Dr. Jürgen Hesser
Abstract: This thesis deals with the development of a real-time medical computer simulation for performing a vascular intervention. The software includes a virtual operating room that is equipped with controllable medical devices and a patient. The simulation also includes the visualization of the X-ray projection and the interaction with a guidewire model developed by Robin Mader as part of his master’s thesis. The visualization is based on
the use of external computed tomography data and the "Lambert-Beer’s Attenuation Law" which describes the attenuation of X-rays when passing through matter, or in this case, the patient’s body. The existing guidewire model is based on the "Cosserat Rod theory" and "Position and Orientation Based Dynamics". The software provides an interface that allows any guidewire models into the system. For the simulation, the game
engine "Unity" is used which offers a user-friendly graphical editor as well as extensive libraries to implement the desired functions and to create an interactive 3D scene. In addition, Unity’s graphics pipeline offers to shift complex calculations to the GPU. The program can be run in the development environment on Windows, Linux and MacOS. The 3D graphic program "Blender" models the operation room and for the interaction
of the guidewire model with the blood vessel, the open-source software "Slicer 3D" is used which generates a 3D model with a triangular mesh structure from the CT data. The purpose of the software is to provide the ability to test a vascular intervention in a virtual environment before it is performed on a real patient. In this case, it is possible for the user of the simulation to navigate the C-arm-shaped X-ray machine and the X-ray
table, to observe the X-ray projection on a monitor and insert the guidewire into the blood vessel with the help of a control panel. It can be seen that the performance of the simulation depends on severalfactors such as the size of the computed tomography data, the parameters of the guide wire model, the hardware on which the simulation runs, etc.
The presentation takes place online on Monday, March 27, 2023, at 10 am via https://heiconf.uni-heidelberg.de/hes-32w-u4v.
Presentation of the bachelor's thesis by Mrs. Jing Fan:
"Assessing Factual Accuracy of Generated Text Using Semantic Role Labeling"
Advisor: Prof. Dr. Michael Gertz
The presentation takes place on Friday, March 24, 2023 at 1 pm online via Webex. If you are interested in participating, please send a short message to gertz@informatik.uni-heidelberg.de.
Presentation of the bachelor's thesis by Mr. Marko Lukosek:
"Polynomial Kernel of Total Dominating Sets"
Advisor: Prof. Dr. Felix Joos
The presentation takes place on Friday, March 24, 2023 at 10 am in room SR 2 (Mathematikon, INF 205).
Presentation of the bachelor's thesis by Mr. Jan Straub:
“Local Iterative Optimization for Graph Bundling“
Advisor: Prof. Dr. Filip Sadlo
The presentation takes place on Monday, March 13, 2023 at 3.15 pm in room 10 in INF 205 (Mathematikon, fifth floor).
Presentation of the master's thesis by Mr. Jannik Petersen:
"Planning and Implementing a Cloud Database with agile Methods for EDF scans"
Advisor: Prof. Dr. Jürgen Hesser
Abstract:
Electroencephalography (EEG) is a prominent method to study brain activity. The applications of EEG sensors extend from research studies to medical applications. In order to be able to search the data of the sensors categorized and sorted according to characteristics, software systems are used. Providing a central interface for storage also allows the data to be accessible for multiple medical studies. This master thesis describes the planning and development of a system to store EEG data in the European Data Format (EDF) in a database via a web-based user interface. For this purpose, a use case diagram is first sketched, which is then used as the basis for the architecture considerations. The application is implemented incrementally based on the use cases using the ASP.NET framework as a web development technology and agile methods. Apart from the EEG data storage, a syntactic analysis is implemented, which allows to read out individual data fields of the EEG data.
The presentation will take place on Thursday, March 9, 2023 at https://uni-heidelberg.webex.com/meet/juergen.hesser
Presentation of the bachelor's thesis by Mr. Christoph Hollizeck:
"Design of force myographic based control for soft wearable assistive technology"
Advisor: Prof. Dr. Lorenzo Masia
The presentation takes place on Tuesday, March 7, 2023 at 10 am in room 443 at INF 368, fifth floor and online via webex
Presentation of the bachelor's thesis by Mr. Daniel Schäffer:
"Higher-Order Streamsurfaces"
Advisor: Prof. Dr. Filip Sadlo
The presentation will take place on Monday, March 6, 2023, at 5 pm in room 10 of INF 205 (Mathematikon, fifth floor).
Presentation of the bachelor's thesis by Mrs. Theresa Häberle:
"Discrete Morse Theory and Conforming Complexes"
Advisor: Prof. Dr. Susanne Krömker
The presentation takes place on Monday, March 6, 2023, 4:15 pm in room 10, Mathematikon 5th floor and via online via https://heiconf.uni-heidelberg.de/kro-hx3-yug
Presentation of the bachelor thesis by Mr. Leonark Marks:
"Visualization of Integral Curves in Plane Fields"
Advisor: Prof. Dr. Filip Sadlo
The presentation will take place on Monday, February 27, 2023, at 4.15 pm at room 10 in INF 205 (Mathematikon fifth floor)
Presentation of the bachelor's thesis by Mr. Ahmad Fadl Allah:
"Automated Enterprise Software Testing Using Game Simulated Data"
Advisor: Prof. Dr. Jürgen Hesser
Abstract:
The modern supply chain is a complex network of suppliers, manufacturers, distributors, and retailers, all working together to bring goods and services to market. This complexity increases as global trade expands and customer demands change rapidly. To effectively handle these challenges, companies need to adopt a good digital supply chain management strategy. The COVID-19 pandemic has highlighted the need for companies to be able to adapt quickly to fast-changing supply chains.By leveraging technology to increase visibility into the supply chain and to automate key processes, organizations can improve their ability to anticipate and respond to change.
Integrated Business Planning system (IBP) is a cloud-based planning software for supply chain management that uses real-time information to help companies or organizations respond more quickly to market and business volatility. In the practice, IBP typically uses the data saved in an (ERP) Enterprise-Resource-planning where all resources, products, plants, bills of materials and the available transportation lanes between plants are centrally saved.To test IBP properly and separated from (ERP) and to cover various cases, we need a dataset of a global organization. Since this data is highly sensitive, we would rather simulate such a global organization via a detailed realistic logistics simulation game Widelands. In this work we aimed to extract logistical data from the Widelands simulation and then use this data as input to test the SAP-IBP. SAP-IBP will then create a logistical plan based on the simulated data we uploaded.
The last step of the work is to integrate the SAP-IBP created logistical plan back into the simulation and observe its impact on one of the players of the Widelands game.
The presentation takes place online on Monday, February 20, 2023 at 4pm at https://uni-heidelberg.webex.com/meet/juergen.hesser
Presentation of the bachelor's thesis by Mr. Ben Danglmayr
"Identifying the heart region of Medaka using deep convolution neural networks for object detection"
Advisor: Prof. Dr. Vincent Heuveline
Presentation of the master's thesis by Mr. David Hector
"High-Performance Randomized Eigensolvers"
Advisor: Prof. Dr. Peter Bastian
The presentation will take place on Thursday, February 9, 2023 at 11 a.m. in room 1.414, Mathematikon 1st floor.
