When it comes to analyzing Solr logs, Solr does have some out of the box tools. However, we’ve found that those tools don’t give a lot of options for creating rich visual analysis, and don’t offer a way to analyze logs in real time. So what do we do? We turn to another open-source platform: Elastic.
Instead of delving into the mathematical definitions of TF-IDF and BM25, we will help you develop an intuitive understanding of these metrics using a series of simple examples.
Last updated: January 17, 2023
This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You.
We use Your Personal data to provide and improve the Service. By using the Service, You agree to the collection and use of information in accordance with this Privacy Policy.
The words of which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or in plural.
For the purposes of this Privacy Policy:
While using Our Service, We may ask You to provide Us with certain personally identifiable information that can be used to contact or identify You. Personally identifiable information may include, but is not limited to:
Usage Data is collected automatically when using the Service.
Usage Data may include information such as Your Device’s Internet Protocol address (e.g. IP address), browser type, browser version, the pages of our Service that You visit, the time and date of Your visit, the time spent on those pages, unique device identifiers and other diagnostic data.
When You access the Service by or through a mobile device, We may collect certain information automatically, including, but not limited to, the type of mobile device You use, Your mobile device unique ID, the IP address of Your mobile device, Your mobile operating system, the type of mobile Internet browser You use, unique device identifiers and other diagnostic data.
We may also collect information that Your browser sends whenever You visit our Service or when You access the Service by or through a mobile device.
We use Cookies and similar tracking technologies to track the activity on Our Service and store certain information. Tracking technologies used are beacons, tags, and scripts to collect and track information and to improve and analyze Our Service. The technologies We use may include:
Cookies can be “Persistent” or “Session” Cookies. Persistent Cookies remain on Your personal computer or mobile device when You go offline, while Session Cookies are deleted as soon as You close Your web browser. Learn more about cookies on the Privacy Policies website article.
We use both Session and Persistent Cookies for the purposes set out below:
For more information about the cookies we use and your choices regarding cookies, please visit our Cookies Policy or the Cookies section of our Privacy Policy.
Articles on this site may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website.
These websites may collect data about you, use cookies, embed additional third-party tracking, and monitor your interaction with that embedded content, including tracking your interaction with the embedded content if you have an account and are logged in to that website.
For uniform representation of fonts, this page uses web fonts provided by Google. When You open a page, your browser loads the required web fonts into your browser cache to display texts and fonts correctly.
For this purpose your browser has to establish a direct connection to Google servers. Google thus becomes aware that our web page was accessed via your IP address. The use of Google Web fonts is done in the interest of a uniform and attractive presentation of our plugin. This constitutes a justified interest pursuant to Art. 6 (1) (f) DSGVO.
If your browser does not support web fonts, a standard font is used by your computer.
Further information about handling user data, can be found at Frequently Asked Questions | Google Fonts | Google Developers and in Google’s privacy policy at Privacy Policy – Privacy & Terms – Google.
Our website uses plugins from YouTube, which is operated by Google. The operator of the pages is YouTube LLC, 901 Cherry Ave., San Bruno, CA 94066, USA.
If You visit one of our pages featuring a YouTube plugin, a connection to the YouTube servers is established. Here the YouTube server is informed about which of our pages you have visited.
If you’re logged in to your YouTube account, YouTube allows you to associate your browsing behavior directly with your personal profile. You can prevent this by logging out of your YouTube account.
YouTube is used to help make our website appealing. This constitutes a justified interest pursuant to Art. 6 (1) (f) DSGVO.
Further information about handling user data, can be found in the data protection declaration of YouTube under Understanding the basics of privacy on YouTube apps.
Akistmet’s anti-spam service collects information about visitors who comment on our site. The information collected but typically includes the commenter’s IP address, user agent, referrer, and Site URL (along with other information directly provided by the commenter such as their name, username, email address, and the comment itself).
The Company may use Personal Data for the following purposes:
We may share Your personal information in the following situations:
The Company will retain Your Personal Data only for as long as is necessary for the purposes set out in this Privacy Policy. We will retain and use Your Personal Data to the extent necessary to comply with our legal obligations (for example, if we are required to retain your data to comply with applicable laws), resolve disputes, and enforce our legal agreements and policies.
The Company will also retain Usage Data for internal analysis purposes. Usage Data is generally retained for a shorter period of time, except when this data is used to strengthen the security or to improve the functionality of Our Service, or We are legally obligated to retain this data for longer time periods.
Your information, including Personal Data, is processed at the Company’s operating offices and in any other places where the parties involved in the processing are located. It means that this information may be transferred to — and maintained on — computers located outside of Your state, province, country or other governmental jurisdiction where the data protection laws may differ than those from Your jurisdiction.
Your consent to this Privacy Policy followed by Your submission of such information represents Your agreement to that transfer.
The Company will take all steps reasonably necessary to ensure that Your data is treated securely and in accordance with this Privacy Policy and no transfer of Your Personal Data will take place to an organization or a country unless there are adequate controls in place including the security of Your data and other personal information.
You have the right to delete or request that We assist in deleting the Personal Data that We have collected about You.
Our Service may give You the ability to delete certain information about You from within the Service.
You may update, amend, or delete Your information at any time by signing in to Your Account, if you have one, and visiting the account settings section that allows you to manage Your personal information. You may also contact Us to request access to, correct, or delete any personal information that You have provided to Us.
Please note, however, that We may need to retain certain information when we have a legal obligation or lawful basis to do so.
If the Company is involved in a merger, acquisition or asset sale, Your Personal Data may be transferred. We will provide notice before Your Personal Data is transferred and becomes subject to a different Privacy Policy.
Under certain circumstances, the Company may be required to disclose Your Personal Data if required to do so by law or in response to valid requests by public authorities (e.g. a court or a government agency).
The Company may disclose Your Personal Data in the good faith belief that such action is necessary to:
The security of Your Personal Data is important to Us, but remember that no method of transmission over the Internet, or method of electronic storage is 100% secure. While We strive to use commercially acceptable means to protect Your Personal Data, We cannot guarantee its absolute security.
The Service Providers We use may have access to Your Personal Data. These third-party vendors collect, store, use, process and transfer information about Your activity on Our Service in accordance with their Privacy Policies.
We may use third-party Service providers to monitor and analyze the use of our Service.
We may process Personal Data under the following conditions:
In any case, the Company will gladly help to clarify the specific legal basis that applies to the processing, and in particular whether the provision of Personal Data is a statutory or contractual requirement, or a requirement necessary to enter into a contract.
The Company undertakes to respect the confidentiality of Your Personal Data and to guarantee You can exercise Your rights.
You have the right under this Privacy Policy, and by law if You are within the EU, to:
You may exercise Your rights of access, rectification, cancellation and opposition by contacting Us. Please note that we may ask You to verify Your identity before responding to such requests. If You make a request, We will try our best to respond to You as soon as possible.
You have the right to complain to a Data Protection Authority about Our collection and use of Your Personal Data. For more information, if You are in the European Economic Area (EEA), please contact Your local data protection authority in the EEA.
This privacy notice section for California residents supplements the information contained in Our Privacy Policy and it applies solely to all visitors, users, and others who reside in the State of California.
We collect information that identifies, relates to, describes, references, is capable of being associated with, or could reasonably be linked, directly or indirectly, with a particular Consumer or Device. The following is a list of categories of personal information which we may collect or may have been collected from California residents within the last twelve (12) months.
Please note that the categories and examples provided in the list below are those defined in the CCPA. This does not mean that all examples of that category of personal information were in fact collected by Us, but reflects our good faith belief to the best of our knowledge that some of that information from the applicable category may be and may have been collected. For example, certain categories of personal information would only be collected if You provided such personal information directly to Us.
Under CCPA, personal information does not include:
We obtain the categories of personal information listed above from the following categories of sources:
We may use or disclose personal information We collect for “business purposes” or “commercial purposes” (as defined under the CCPA), which may include the following examples:
Please note that the examples provided above are illustrative and not intended to be exhaustive. For more details on how we use this information, please refer to the “Use of Your Personal Data” section.
If We decide to collect additional categories of personal information or use the personal information We collected for materially different, unrelated, or incompatible purposes We will update this Privacy Policy.
We may use or disclose and may have used or disclosed in the last twelve (12) months the following categories of personal information for business or commercial purposes:
Please note that the categories listed above are those defined in the CCPA. This does not mean that all examples of that category of personal information were in fact disclosed, but reflects our good faith belief to the best of our knowledge that some of that information from the applicable category may be and may have been disclosed.
When We disclose personal information for a business purpose or a commercial purpose, We enter a contract that describes the purpose and requires the recipient to both keep that personal information confidential and not use it for any purpose except performing the contract.
As defined in the CCPA, “sell” and “sale” mean selling, renting, releasing, disclosing, disseminating, making available, transferring, or otherwise communicating orally, in writing, or by electronic or other means, a consumer’s personal information by the business to a third party for valuable consideration. This means that We may have received some kind of benefit in return for sharing personal information, but not necessarily a monetary benefit.
Please note that the categories listed below are those defined in the CCPA. This does not mean that all examples of that category of personal information were in fact sold, but reflects our good faith belief to the best of our knowledge that some of that information from the applicable category may be and may have been shared for value in return.
We may sell and may have sold in the last twelve (12) months the following categories of personal information:
We may share Your personal information identified in the above categories with the following categories of third parties:
We do not sell the personal information of Consumers We actually know are less than 16 years of age, unless We receive affirmative authorization (the “right to opt-in”) from either the Consumer who is between 13 and 16 years of age, or the parent or guardian of a Consumer less than 13 years of age. Consumers who opt-in to the sale of personal information may opt-out of future sales at any time. To exercise the right to opt-out, You (or Your authorized representative) may submit a request to Us by contacting Us.
If You have reason to believe that a child under the age of 13 (or 16) has provided Us with personal information, please contact Us with sufficient detail to enable Us to delete that information.
The CCPA provides California residents with specific rights regarding their personal information. If You are a resident of California, You have the following rights:
In order to exercise any of Your rights under the CCPA, and if You are a California resident, You can contact Us:
Only You, or a person registered with the California Secretary of State that You authorize to act on Your behalf, may make a verifiable request related to Your personal information.
Your request to Us must:
We cannot respond to Your request or provide You with the required information if We cannot:
We will disclose and deliver the required information free of charge within 45 days of receiving Your verifiable request. The time period to provide the required information may be extended once by an additional 45 days when reasonably necessary and with prior notice.
Any disclosures We provide will only cover the 12-month period preceding the verifiable request’s receipt.
For data portability requests, We will select a format to provide Your personal information that is readily usable and should allow You to transmit the information from one entity to another entity without hindrance.
You have the right to opt-out of the sale of Your personal information. Once We receive and confirm a verifiable consumer request from You, we will stop selling Your personal information. To exercise Your right to opt-out, please contact Us.
The Service Providers we partner with (for example, our analytics or advertising partners) may use technology on the Service that sells personal information as defined by the CCPA law. If you wish to opt out of the use of Your personal information for interest-based advertising purposes and these potential sales as defined under CCPA law, you may do so by following the instructions below.
Please note that any opt out is specific to the browser You use. You may need to opt out on every browser that You use.
You can opt out of receiving ads that are personalized as served by our Service Providers by following our instructions presented on the Service:
The opt out will place a cookie on Your computer that is unique to the browser You use to opt out. If you change browsers or delete the cookies saved by your browser, You will need to opt out again.
Your mobile device may give You the ability to opt out of the use of information about the apps You use in order to serve You ads that are targeted to Your interests:
You can also stop the collection of location information from Your mobile device by changing the preferences on Your mobile device.
Our Service does not respond to Do Not Track signals.
However, some third party websites do keep track of Your browsing activities. If You are visiting such websites, You can set Your preferences in Your web browser to inform websites that You do not want to be tracked. You can enable or disable DNT by visiting the preferences or settings page of Your web browser.
The Service may contain content appropriate for children under the age of 13. As a parent, you should know that through the Service children under the age of 13 may participate in activities that involve the collection or use of personal information. We use reasonable efforts to ensure that before we collect any personal information from a child, the child’s parent receives notice of and consents to our personal information practices.
We also may limit how We collect, use, and store some of the information of Users between 13 and 18 years old. In some cases, this means We will be unable to provide certain functionality of the Service to these Users. If We need to rely on consent as a legal basis for processing Your information and Your country requires consent from a parent, We may require Your parent’s consent before We collect and use that information.
We may ask a User to verify its date of birth before collecting any personal information from them. If the User is under the age of 13, the Service will be either blocked or redirected to a parental consent process.
The Company may collect and store persistent identifiers such as cookies or IP addresses from Children without parental consent for the purpose of supporting the internal operation of the Service.
We may collect and store other personal information about children if this information is submitted by a child with prior parent consent or by the parent or guardian of the child.
The Company may collect and store the following types of personal information about a child when submitted by a child with prior parental consent or by the parent or guardian of the child:
For further details on the information We might collect, You can refer to the “Types of Data Collected” section of this Privacy Policy. We follow our standard Privacy Policy for the disclosure of personal information collected from and about children.
A parent who has already given the Company permission to collect and use his child personal information can, at any time:
To make such a request, You can write to Us using the contact information provided in this Privacy Policy.
Under California Civil Code Section 1798 (California’s Shine the Light law), California residents with an established business relationship with us can request information once a year about sharing their Personal Data with third parties for the third parties’ direct marketing purposes.
If you’d like to request more information under the California Shine the Light law, and if You are a California resident, You can contact Us using the contact information provided below.
California Business and Professions Code Section 22581 allows California residents under the age of 18 who are registered users of online sites, services or applications to request and obtain removal of content or information they have publicly posted.
To request removal of such data, and if You are a California resident, You can contact Us using the contact information provided below, and include the email address associated with Your account.
Be aware that Your request does not guarantee complete or comprehensive removal of content or information posted online and that the law may not permit or require removal in certain circumstances.
Our Service may contain links to other websites that are not operated by Us. If You click on a third party link, You will be directed to that third party’s site. We strongly advise You to review the Privacy Policy of every site You visit.
We have no control over and assume no responsibility for the content, privacy policies or practices of any third party sites or services.
We may update Our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page.
We will let You know via email and/or a prominent notice on Our Service, prior to the change becoming effective and update the “Last updated” date at the top of this Privacy Policy.
You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.
If you have any questions about this Privacy Policy, You can contact us: