We are excited to announce the start of the second Google Smartphone Decimeter Challenge.
\nThe competition aims at engaging the community in solving smartphone positioning challenges; enabling applications that require high precision location such as lane-level navigation.
We are coming back this year with more datasets spanning more routes. We also have simplified data representations that make it easier for the Kaggle community to hit the ground running.
\nWe can't wait to see the novel ideas from the the GNSS and Data Science community.
The Challenge Team.
", "messages": [ { "id": 1772197, "postDate": "2022-04-30T01:04:31.907Z", "content": "We are excited to announce the start of the second Google Smartphone Decimeter Challenge.
\nThe competition aims at engaging the community in solving smartphone positioning challenges; enabling applications that require high precision location such as lane-level navigation.
We are coming back this year with more datasets spanning more routes. We also have simplified data representations that make it easier for the Kaggle community to hit the ground running.
\nWe can't wait to see the novel ideas from the the GNSS and Data Science community.
The Challenge Team.
", "rawMarkdown": "We are excited to announce the start of the second Google Smartphone Decimeter Challenge.\nThe competition aims at engaging the community in solving smartphone positioning challenges; enabling applications that require high precision location such as lane-level navigation.\n\nWe are coming back this year with more datasets spanning more routes. We also have simplified data representations that make it easier for the Kaggle community to hit the ground running.\nWe can't wait to see the novel ideas from the the GNSS and Data Science community.\n\nThe Challenge Team.", "votes": 14 }, { "id": 1840194, "postDate": "2022-07-02T03:21:51.947Z", "content": "Can you please update the timeline of the competition for phase 2?
", "rawMarkdown": "Can you please update the timeline of the competition for phase 2?", "replies": [ { "id": 1845901, "postDate": "2022-07-06T17:00:15.360Z", "content": "This competition doesn't have a phase 2.
", "rawMarkdown": "This competition doesn't have a phase 2.", "votes": 1 } ] }, { "id": 1835703, "postDate": "2022-06-28T02:53:20.097Z", "content": "Hi, is the competition need us to analyze every CSV? Or do we just need to choose one? Thanks
", "rawMarkdown": "Hi, is the competition need us to analyze every CSV? Or do we just need to choose one? Thanks", "replies": [ { "id": 1836087, "postDate": "2022-06-28T10:38:43.837Z", "content": "You need to submit your calculated latitude and longitude for all 66097 timestamps along the test set journeys specified in the sample_submission.csv file. You can use as much or as little of the training data as you find helpful.
\nYour submission should follow the same format as sample_submission.csv.
", "rawMarkdown": "You need to submit your calculated latitude and longitude for all 66097 timestamps along the test set journeys specified in the sample_submission.csv file. You can use as much or as little of the training data as you find helpful.\n\nYour submission should follow the same format as sample_submission.csv." } ] }, { "id": 1779296, "postDate": "2022-05-06T09:00:41.573Z", "content": "Thanks Mohammed. I had a few questions that need clarifications please.
\nWill appreciate your response to these.
", "rawMarkdown": "Thanks Mohammed. I had a few questions that need clarifications please.\n\n1. What datum or coordinate system to use to compute the locations? Will ITRF2014 @ 2010 be acceptable as defined here https://noaa-cors-pds.s3.amazonaws.com/coord/coord_14/itrf2014_xyz.comp.txt?\n2. Are we to submit the test data or both test and train data?\n3. How accurate should the timestamps be in the solution file? I noticed there is a slight loss of time precision when using the RINEX 3.03 data versus the device_gnss data. So if I use RINEX to calculate the solution, the timestamps will have a slight loss of accuracy. \n\nWill appreciate your response to these.\n", "replies": [ { "id": 1779635, "postDate": "2022-05-06T16:57:04.607Z", "content": "Thank you Sohier.
\nBased on past year, I understand the reference solution for ground truth is from a Novatel RTK-IMU system.
\nWhat coordinate system was used for the base station coordinates of the RTK reference station?
Hi there, the coordinate frame for the ground truth is WGS84 - ITRF (current year).
", "rawMarkdown": "Hi there, the coordinate frame for the ground truth is WGS84 - ITRF (current year).", "votes": 2 } ] }, { "id": 1828118, "postDate": "2022-06-21T13:54:43.887Z", "rawMarkdown": "", "isDeleted": true } ], "comments": [ { "id": 1840194, "author_name": "ethan hunt 923", "author_url": "", "post_date": "2022-07-02T03:21:51.947000", "content": "Can you please update the timeline of the competition for phase 2?
", "votes": 0, "replies": [ { "id": 1845901, "author_name": "Sohier Dane", "author_url": "", "post_date": "2022-07-06T17:00:15.360000", "content": "This competition doesn't have a phase 2.
", "votes": 1, "replies": [] } ] }, { "id": 1835703, "author_name": "Lindean CHUANG", "author_url": "", "post_date": "2022-06-28T02:53:20.097000", "content": "Hi, is the competition need us to analyze every CSV? Or do we just need to choose one? Thanks
", "votes": 0, "replies": [ { "id": 1836087, "author_name": "John Mitchell", "author_url": "", "post_date": "2022-06-28T10:38:43.837000", "content": "You need to submit your calculated latitude and longitude for all 66097 timestamps along the test set journeys specified in the sample_submission.csv file. You can use as much or as little of the training data as you find helpful.
\nYour submission should follow the same format as sample_submission.csv.
", "votes": 0, "replies": [] } ] }, { "id": 1779296, "author_name": "ADA", "author_url": "", "post_date": "2022-05-06T09:00:41.573000", "content": "Thanks Mohammed. I had a few questions that need clarifications please.
\nWill appreciate your response to these.
", "votes": 0, "replies": [ { "id": 1779635, "author_name": "Sohier Dane", "author_url": "", "post_date": "2022-05-06T16:57:04.607000", "content": "Thank you Sohier.
\nBased on past year, I understand the reference solution for ground truth is from a Novatel RTK-IMU system.
\nWhat coordinate system was used for the base station coordinates of the RTK reference station?
Hi there, the coordinate frame for the ground truth is WGS84 - ITRF (current year).
", "votes": 2, "replies": [] } ] }, { "id": 1828118, "author_name": "", "author_url": "", "post_date": "2022-06-21T13:54:43.887000", "content": "", "votes": 0, "replies": [] } ], "raw_markdown_by_id": { "1772197": "We are excited to announce the start of the second Google Smartphone Decimeter Challenge.\nThe competition aims at engaging the community in solving smartphone positioning challenges; enabling applications that require high precision location such as lane-level navigation.\n\nWe are coming back this year with more datasets spanning more routes. We also have simplified data representations that make it easier for the Kaggle community to hit the ground running.\nWe can't wait to see the novel ideas from the the GNSS and Data Science community.\n\nThe Challenge Team.", "1840194": "Can you please update the timeline of the competition for phase 2?", "1835703": "Hi, is the competition need us to analyze every CSV? Or do we just need to choose one? Thanks", "1779296": "Thanks Mohammed. I had a few questions that need clarifications please.\n\n1. What datum or coordinate system to use to compute the locations? Will ITRF2014 @ 2010 be acceptable as defined here https://noaa-cors-pds.s3.amazonaws.com/coord/coord_14/itrf2014_xyz.comp.txt?\n2. Are we to submit the test data or both test and train data?\n3. How accurate should the timestamps be in the solution file? I noticed there is a slight loss of time precision when using the RINEX 3.03 data versus the device_gnss data. So if I use RINEX to calculate the solution, the timestamps will have a slight loss of accuracy. \n\nWill appreciate your response to these.\n", "1828118": "" } }