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Last updated on Apr 4, 2025
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Your data sources are telling different stories. How do you reconcile the discrepancies?

How do you handle conflicting data sources? Share your strategies for finding the truth.

Data Science Data Science

Data Science

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Last updated on Apr 4, 2025
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  2. Engineering
  3. Data Science

Your data sources are telling different stories. How do you reconcile the discrepancies?

How do you handle conflicting data sources? Share your strategies for finding the truth.

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Help others by sharing more (125 characters min.)
33 answers
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    Alok Singh

    Global AI Product Manager | Board Member | Advisor | Former Amazon AI | IIT Bombay | Follow to Level Up Your AI Skills - 1% at a time

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    𝗪𝗵𝗲𝗻 𝗱𝗮𝘁𝗮 𝘀𝗼𝘂𝗿𝗰𝗲𝘀 𝘁𝗲𝗹𝗹 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 𝘀𝘁𝗼𝗿𝗶𝗲𝘀, 𝗲𝘃𝗲𝗿𝘆 AI/ML 𝗺𝗼𝗱𝗲𝗹 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝗱 𝘁𝗿𝗮𝗶𝗻𝘀 𝗼𝗻 𝗳𝗿𝗮𝗴𝗺𝗲𝗻𝘁𝗲𝗱 𝗶𝗻𝗽𝘂𝘁. Sounds like you’re making big bets on misaligned inputs. It’s frustrating. Everyone’s right, but nothing aligns. How much clarity is your team getting from conflicting data pipelines? ⟶ 𝗦𝘁𝗮𝗻𝗱𝗮𝗿𝗱𝗶𝘇𝗲 𝗱𝗮𝘁𝗮 𝗱𝗲𝗳𝗶𝗻𝗶𝘁𝗶𝗼𝗻𝘀 ⟶ 𝗔𝘀𝘀𝗶𝗴𝗻 𝗰𝗹𝗲𝗮𝗿 𝗼𝘄𝗻𝗲𝗿𝘀𝗵𝗶𝗽: 𝗱𝗮𝘁𝗮 𝗽𝗮𝗶𝗻𝘁𝘀 𝗽𝗼𝗹𝗶𝗰𝘆 ⟶ 𝗧𝗿𝗲𝗮𝘁 𝗴𝗮𝗽𝘀 𝗹𝗶𝗸𝗲 𝗲𝗿𝗿𝗼𝗿𝘀 It probably feels like you're steering the ship with 3 compasses pointing in different directions. 𝗜𝗳 𝗱𝗮𝘁𝗮 𝗶𝘀 𝗱𝗶𝘀𝗷𝗼𝗶𝗻𝘁𝗲𝗱, 𝗼𝘂𝘁𝗽𝘂𝘁 𝗶𝘀 𝗼𝗳𝗳-𝗰𝗼𝘂𝗿𝘀𝗲. 𝗙𝗶𝘅 𝘁𝗵𝗲 𝗶𝗻𝗽𝘂𝘁.

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    Shiladitya Sircar

    Senior Vice President | Product Engineering | SaaS, AI & DataScience, CyberSecurity, e-Commerce, Mobile

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    In data science, conflicting data isn't a bug—it's a signal. Reconcile it with weighted averages, or statistical hypothesis testing. Visualize overlaps – Plot the distribution to spot patterns, not just errors. Follow the rabbit!!!

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    Ashok Bhatt

    Global 100 Power List 2025 Honoree | Iconic Leader Award Winner in Business Analytics & AI/ML | Innovative Business Leader & Business Transformation Leader Awards Winner 2025 | CEET | CSSBB | PGDBA | CIPM

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    When data sources tell different stories, dig deeper to understand why. For example, in location-based potential analysis: > Understand what each source measures- One dataset may estimate a city’s market potential by population (1 mn), while another counts mobile app users (500K). One shows possible customers, the other actual users. > Check timing and definitions- are both from the same period? Are they counting residents or visitors? > Assess data quality- maybe population data is old, app data recent. > Understand data sources, methods and assumptions. > Combine insights for a fuller view- population shows market size, app data shows engagement. By comparing details and asking questions, you can reconcile differences and find the truth.

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    Abdul Mazed

    Online Activist

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    When your data sources tell different stories, start by examining the context and definitions behind each dataset. Differences often arise from varying collection methods, timeframes, or metrics. Align these factors by standardizing definitions, time periods, and measurement criteria. Cross-check data quality and look for errors or biases. Use data triangulation—combining multiple sources to find common ground and validate insights. Communicate openly about discrepancies with your team, and be ready to adjust assumptions. Reconciliation isn’t about forcing agreement but understanding why differences exist and what they reveal.

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    Emily A.

    Supply Chain Director

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    When I encounter the conflicting data, the first thing I would do is to determine from where the data is collected, when it is collected, and who collected the data; this often reveals the inconsistencies in definitions, time ranges, and measurement methods. I compare both data sources with correct references to see which is more accurate. I combine the data if it is needed, but remove data which part is less reliable. I always note these issues so others understand the data clearly.

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    Denis Moskvin

    Chief Technical Officer @ IT-Pharmacy

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    It may be possible to identify the causes of discrepancies. For example, they may arise from the use of different definitions for the same value (in our retail sector, “revenue” might be reported either including or excluding tax). Different time periods or measurement methods may also be used for data analysis. Another possible issue could be the lack of data normalization. Information needs to be brought to a “common denominator” — that is, using the same units of measurement, the same time period, etc. One more approach is to try using an additional data source for comparison.

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    Ruth Rose

    Customer Experience Evangelist | Global Growth Executive | Chief Member

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    Reconciling differing data sources involves a systematic approach to arrive at a more accurate and trustworthy view of your information: Understand and Scope the Problem Investigate Data Origins and Collection Assess Data Quality Apply Reconciliation Techniques Establish a "Source of Truth" Collaborate and Communicate Leverage Tools Implement Long-Term Solutions Dig into the "how" and "why" behind the numbers, then implement processes and tools to ensure consistency moving forward.

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    Emily A.

    Supply Chain Director

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    When data conflicts, i start by checking time ranges, data definitions, sources, often differences come from the outdated data formats and inconsistencies. I look for trusted references to compare both sources and compare and see which result is more accurate. If necessary, I will merge the data and remove any parts that are less certain or unnecessary. Clear documentation helps to understand the output and trust the analysis

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    Isaac Truong

    Data Expert With The Goal To Turn Your Data From Idle to Vital | Enterprise Data Warehouse | Data Strategy | Power BI | Tableau | Azure | Fabric | Tennis Fanatic 🎾

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    Handling conflicting data sources requires a structured approach to ensure accuracy and reliability. First, establish a clear data governance framework that includes data lineage and provenance to trace the origins and transformations of data. Employ statistical methods, such as cross-validation or ensemble techniques, to assess the credibility of different sources. Additionally, leveraging data visualization tools like Power BI or Tableau can help identify discrepancies visually, facilitating a more intuitive understanding of the data landscape. Ultimately, fostering a culture of data literacy within your organization empowers stakeholders to critically evaluate data sources and make informed decisions.

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