” CS241编程语言 辅导、 写作data留学生程序CS241 Final ProjectAnalysis and Visualization of Online Ride-Hailing Order DataProject for Principles and Practice of Problem Solving1 IntroductionRecently, the popularity of online ride-hailing systems, such as Didi and Uber, brings significant conveninenceto daily transportation. However, they are all facing notorious challenges, such as demand-supplygap. Suppose you are a Data analyst, and are required to analyze and visulize order-related data to helpthe company solve challenges.2 Dataset DescriptionThe dataset includes 15 days order data in Chengdu city, partially from KDD Cup 2020. Here are someuseful fields:Table 1. Samples of Chengdu Order dataset.fields type description exampleorder id String ID of order eb9dd4095d9850e6287cefd813775a6cdepature time Float Ride Start Time 1477964797end time Float Ride End Time 1477966507orig lng Float Pick-up Longitude 104.092097319258orig lat Float Pick-up Latitude 30.7063482074305dest lng Float Drop-off Longitude 104.08673269432dest lat Float Drop-off Latitude 30.653252740962fee Float Fee of order 3.54In order to meet the requirements of refinement, we divide the main urban areas of Chengdu into 10 10grids, as shown in the figure below. The latitude and longitude of each lattice has been given. The programalso needs to be able to analyze and visualize the order information in the small grids.Fig. 1. Grid illustrated in Chengdu city.3 TasksTasks include mandatory part and elective part. All tasks should be coded in c++ and Qt.3.1 Mandatory PartDesign a graphic user interface, which can1) load the dataset. Allow users to select the fields and time span of users interest. A progress baris required to show the loading progress.2) display the Spatio-temporal demand patterns. For example, the number of orders in Chengduover time, the number of orders in each fine-grained grids over time. Display forms include but notlimited to the line chart, histogram, pie chart, etc. Users should be able to tune the parameters,such as the starting time, ending time, time step and grid id, graphically. Interpolation is requiredto smooth the line when only a few data points are selected.3) display other valuable information. For example, the distribution of users travel time, order fees,etc. Moreover, total revenue of the company in a certain period of time is also displayable.Hint: Codes need to be implemented via multi-thread to prevent your program from being stuck whenyou are computing while displaying.3.2 Elective TasksImplement additional analysis by yourself. Use your knowledge and freely exert your creativity, and wewont limit Views from which data is analyzed and displayed. Please note that one can implementup to two functions in elective tasks. Functions that are more than two will not be countedin the total score. Here are some recommendations:1) Map-related analysis. Show the spatial distribution of order origins on the map, such as the thermal diagram in aperiod of time; Show how people transfer, i.e., the connections from the origins to the destinations; Route planning: input starting and ending positions, and display the recommended route on themap.Hint: We recommend openstreetmap library.2) Prediction-related analysis. Given the origin and the destination, how long will it take for a passenger to arrive? Given a starting position, where may passengers go?3) Query-related analysis. Retrieve orders: return a set of similar orders based on the input order information.4 Submission RequirementsThe project will be graded on the basis of your project report, video demo and the source codes.You need to zip and upload these files to the Canvas. It is due by 11:59pm on December 27th, 2020.No late submission will be accepted.4.1 Report Requirements1. No more than 5 pages. No formatting requirements.2. Should at least Containa) Introduction. Describe your main ideas and what you do in this project.b) Implementation Details.c) Results.d) Discussions. You could discuss the performance of your application or discuss the interestingresults you have revealed from the data.3. Report is in English only.4.2 Demo Requirements1. Make a video to present your work by screen recording or camera shooting. Please check that thevideo is Playable!2. No more than 5 minutes.3. Presentation is in English only.Examples of screen recording: YouTube Demo Bilibili DemoExamples of camera shooting: Presentation Demo4.3 Source Code Requirements1. Add a README file, which includes instructions to run your codes.2. Make Sure it runs smoothly on your own computer.Page 3 of 3如有需要，请加QQ：99515681 或邮箱：99515681@qq.com
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