ChaLearn Looking at People 2016 - Track 2: Accesories Classification

Organized by MTT - Current server time: May 19, 2019, 6:35 a.m. UTC

First phase

Feb. 12, 2016, midnight UTC


Competition Ends
March 30, 2016, midnight UTC

ChaLearn Looking at People and Faces of the World 2016


Track 2: Accessories Classification

Challenge overview

The partition of the Faces of the World dataset that will be used in Track 2 contains over 8,000 images, each displaying a single individual, labelled with the accessories that they are wearing. Accessories considered are: earrings, hats, glasses, necklaces, headbands, scarves and ties/neckties. Images has been labeled by multiple individuals, using Zooniverse as a tool.

In this first stage, we provide two ZIP files containing the images for the training and validation sets. The participants will evaluate their methods in the validation set. Then, in the second stage they will submit their models to be tested by the organisers of the track.

Example of labelled images.

More detailed information is provided on the data section of the competition.


Provided Resources


  • Scripts: The organizers provide a set of scripts to facilitate evaluation and access to the data. More information is provided on the data page.
  • Contact: If you have any problems or queries, you can use the forum in the Codalab competition. You can also contact the organizers at





Submission Information

Please send your submissions to:, with the subject name "SUBMISSION by [Name of your Team].

We would like for you to upload your submission as a ZIP file to CodaLab or any other service and send us a link to your file. The deadline is the 30th of Match.

Your submission should include: your model, the code necessary to train it, any external dataset you may have used and a fact sheet.

Thank you all and good luck!

The FotW team

ChaLearn Looking at People and Faces of the World 2016


Track 2: Accessories Classification

Evaluation Criteria

For the validation and testing process, the output from your system should be a vector with the following structure:

Output for evaluation


  1. 1st column: name of the image
  2. 2nd column: x coordinate of the bounding box around the detected face
  3. 3rd column: y coordinate of the bounding box around the detected face
  4. 4th column: width if the bounding box around the detected face
  5. 5th column: height if the bounding box around the detected face
  6. 6th to 12th columns: accessories in the image. Accessories present should be indicated with a 1. Accessories not present should be indicated with a 0.

This problem can be approached as a classification or regression problem, either way the results will be evaluated by calculating the mean square error between the predictions and the ground-truth data. This measure error will range between 0 (the face was correctly detected and all accessores have been correctly classified) and 1 (face has not been detected or classified accesories are no correct). Not predicted faces are evaluated with 1.

Submission format

In this track, the participants should submit a ZIP file containing their models with a file called README.txt with instructions on how to run the code. We will run your code with our testing data and then, we will calculate the mean error over the whole test set.

Each solution will be ranked in an ascending manner according to this error. The winner will be whoever gets the smaller error.


Template Chalearn Contest rules


CHALEARN Contest Rules for

ChaLearn Looking at People and Faces of the World 2016


Official rules

Common terms used in these rules:


These are the official rules that govern how the ChaLearn Faces of the World Looking at People 2016 contest promotion will operate. This promotion will be simply referred to as the contestant or the challenge throughout the rest of these rules and may be abbreviated on our website, in our documentation, and other publications as ChaLearn LAP.


SECTION 1                  Contest description

This is a skill-based contest and chance plays no part in the determination of the winner(s). The contest consists of a three tracks competition on face analysis:

·        Age recognition

·        Complements and Accessories detection

·        Smile and Gender detection


(a)                 Focus of the Contest: thousands of images with the objective of performing automatic age estimation, smile detection, and complements and accessories detection of several people.

(b)                All eligible entries received will be judged using the criteria described below to determine winners.




SECTION 2                  Tentative Contest Schedule

The registered participants will be notified by email of any change in the schedule. Track 2 (Accessories Classification) and Track 3 (Smile and Gender Classification) will follow this schedule:


12thFebruary, 2016: Beginning of the quantitative competition, release of training and validation data with labels.

30thMarch, 2016: Participants send their code, models and fact sheet to the organisers, who will run their code on the test set.

5thApril, 2016: Release of the results of the competition. All competing participants are invited to follow the workshop submission guide for inclusion at CVPR 2016 ChaLearn Looking at People and Faces of the World workshop proceedings.


SECTION 3                  Eligibility

You are eligible to enter this contest if you meet the following requirements:

(a)                 You are an individual or a team of people desiring to contribute to the tasks of the challenge and accepting to follow its rules; and

(b)                You are NOT a resident of any country constrained by US export regulations included in the OFAC sanction page . Therefore residents of these countries / regions are not eligible to participate; and

You are not an employee of CHALEARN or any of the sponsoring or co-organizing entities; and

(c)                 You are not involved in any part of the administration and execution of this contest; and

(d)                You are not an immediate family (parent, sibling, spouse, or child) or household member of an employee of CHALEARN, Microsoft, , or a person involved in any part of the administration and execution of this contest.

This contest is void within the geographic area identified above and wherever else prohibited by law.

If you choose to submit an entry, but are not qualified to enter the contest, this entry is voluntary, and any entry you submit is governed by the remainder of these contest rules; CHALEARN reserves the right to evaluate it for scientific purposes. If you are not qualified to submit a contest entry and still choose to submit one, under no circumstances will such entries qualify for sponsored prizes.


SECTION 4                  Entry


To be eligible for judging, an entry must meet the following content/technical requirements:  

(a)                 Entry contents : The participants are required their code. To be eligible for prizes, the top ranking participants are required to publicly release their code under a license of their choice, taken among popular OSI-approved licenses ( ) and make their code accessible on-line for a period of not less than three years following the end of the challenge (only required for top three ranked participants of each competition track). To be part of the final ranking the participants will be asked to fill out a survey (fact sheet) briefly describing their method. The top ranking participants and the rest of participants are also invited (not mandatory) to submit a maximum 8-page paper for the proceedings of the CVPR 2016 ChaLearn Looking at People and Faces of the World workshop. To be eligible for prizes, top ranked participants score must improve the baseline performance provided by the challenge organizers.

(b)                Pre-requisite: There is no pre-requisite to participate, including no requirement to have participated in previous challenges.

(c)                 Use of data provided: All data provided by CHALEARN and Faces of the World are freely available to the participants from the website of the challenge under license terms provided with the data. The data are available only for open research and educational purposes, within the scope of the challenge. ChaLearn and the organizers make no warranties regarding the database, including but not limited to warranties of non-infringement or fitness for a particular purpose. The copyright of the images remain the property of their respective owners. By downloading and making use of the data, you accept full responsibility for using the data. You shall defend and indemnify ChaLearn and the organizers, including their employees, Trustees, officers and agents, against any and all claims arising from your use of the data. You agree not to redistribute the data without this notice.

(1)                 Test data :

The organizers will use test data to perform the final evaluation, hence the participants final entry will be based on test data.

(2)                 Training and validation data :

The contest organizers will make available to the participants a training and validation set with corresponding ground-truth labels.

(3)                 Post-challenge analysis :

The organizers may also perform additional post-challenge analysis using extra data, but the results will not affect the ranking of the challenge performed with the test data.

(d)                Submission: The entries of the participants will be submitted on-line via the Codalab web platform. During the development period, the participants will receive immediate feed-back on validation data released for practice purpose. For the final evaluation, the results will be computed automatically on test data submissions.  The performances on test data will not be released until the challenge is over.

(e)                Original work, permissions: In addition, by submitting your entry into this contest you confirm that, to the best of your knowledge: 

(1)                 Your entry is your own original work; and

(2)                 Your entry only includes material that you own, or that you have permission from the copyright / trademark owner to use.

(f)                  Minimum performance: Your entry must overperform the baseline entry provided by the organizers.


SECTION 5                  Potential use of entry

Other than what is set forth below, we are not claiming any ownership rights to your entry. However, by submitting your entry, you:

(a)                 Are granting us an irrevocable, worldwide right and license, in exchange for your opportunity to participate in the contest and potential prize awards, for the duration of the protection of the copyrights to:

(1)                 Use, review, assess, test and otherwise analyze results submitted or produced by your code and other material submitted by you in connection with this contest and any future research or contests sponsored by CHALEARN and Microsoft; and

(2)                 Feature your entry and all its content in connection with the promotion of this contest in all media (now known or later developed);

(b)                Agree to sign any necessary documentation that may be required for us and our designees to make use of the rights you granted above;

(c)                 Understand and acknowledge that Microsoft and other entrants may have developed or commissioned materials similar or identical to your submission and you waive any claims you may have resulting from any similarities to your entry;

(d)                Understand that we cannot control the incoming information you will disclose to our representatives or our co-sponsor€™s representatives in the course of entering, or what our representatives will remember about your entry. You also understand that we will not restrict work assignments of representatives or our co-sponsor€™s representatives who have had access to your entry. By entering this contest, you agree that use of information in our representatives€™ or our co-sponsor€™s  representatives unaided memories in the development or deployment of our products or services does not create liability for us under this agreement or copyright or trade secret law;

(e)                Understand that you will not receive any compensation or credit for use of your entry, other than what is described in these official rules.

If you do not want to grant us these rights to your entry, please do not enter this contest.

SECTION 6                    Submission of entries

(a)                 Follow the instructions on the Codalab website to submit entries.

(b)                The participants will be registered as mutually exclusive teams. Each team may submit only one single final entry. We are not responsible for entries that we do not receive for any reason, or for entries that we receive but are not functioning properly.

(c)                 The participants must follow the instructions. We will automatically disqualify incomplete or invalid entries.

SECTION 7                  Judging the entries

The board of CHALEARN will select a panel of judges to judge the entries; all judges will be forbidden to enter the contest and will be experts in computer vision, statistics, machine learning, or a related field, or experts in challenge organization.  A list of the judges will be made available upon request. The judges will review all eligible entries received and select three winners for each of the three competition tracks based upon the prediction score on test data. The judges will verify that the winners complied with the rules, including that they documented their method by filling out a fact sheet.

The decisions of these judges are final and binding. The distribution of prizes according to the decisions made by the judges will be made within three (3) months after completion of the last round of the contest. If we do not receive a sufficient number of entries meeting the entry requirements, we may, at our discretion based on the above criteria, not award any or all of the contest prizes below.  In the event of a tie between any eligible entries, the tie will be broken by giving preference to the earliest submission, using the time stamp of the submission platform.

SECTION 8                  Prizes and Awards

(a)                 Microsoft, ChaLearn, NVIDIA, IAPR, University of Barcelona, Human Pose Recovery and Behavior Analysis Group, Disney Research, Facebook, Google, and Amazon are the financial sponsors of this contest. There will be economic incentive prizes and travel grants for the winners (based on availability) to boost contest participation; these prizes will not require participants to enter into an IP agreement with any of the sponsors, to disclose algorithms, or to deliver source code to them.


(b)                Incentive Prizes


First place: 500 dollars + Award certificade


(*) The amount will be based on need and availability. The travel award may be used for one of the workshops organized in conjunction with the challenge. The award money will be granted in reimbursement of expenses including airfare, ground transportation, hotel, or workshop registration. Reimbursement is conditioned on (i) attending the workshop, (ii) making an oral presentation of the methods used in the challenge, and (iii) presenting original receipts and boarding passes.


(a)                 Travel awards:

Other travel awards may be distributed to deserving participants based upon need and availability.

(b)                If for any reason the advertised prize is unavailable, unless to do so would be prohibited by law, we reserve the right to substitute a prize(s) of equal or greater value, as permitted. We will only award one prize per team within each competition track, but the team can obtain prizes from different tracks.  If you are selected as a potential winner of this contest:

(1)                 If your prize is not in cash, you may not exchange your prize for cash; you may not exchange any prize for other merchandise or services.

(2)                 You may not designate someone else as the winner. If you are unable or unwilling to accept your prize, we will award it to an alternate potential winner.

(3)                 If you accept a prize, you will be solely responsible for all applicable taxes related to accepting the prize.

(4)                 If you are a minor in your place of residence, we may award the prize to your parent/legal guardian on your behalf and your parent/legal guardian will be designated as the winner.

SECTION 9                  Other Sponsored Events

(1)                 To stimulate participation, the organizers are making available several channels of scientific paper publication. Publishing papers is optional and will not be a condition to entering the challenge or winning prizes.

(2)                 The results of the challenge will be published in the CVPR 2016 workshop proceedings. The collection of papers could also be printed as a book in the Challenges in Machine Learning series of Microtome ( ).

(3)                 Best conference papers related to the participant methods can also be invited to be extended and submitted to an impact factor journal special issue.

The organizers may also sponsor other events to stimulate participation.

SECTION 10              Notifications

If there is any change to data, schedule, instructions of participation, or these rules, the registered participants will be notified at the email they provided with the registration.

If you are a potential winner, we will notify you by sending a message to the e-mail address listed on your final entry within seven days following the determination of winners. If the notification that we send is returned as undeliverable, or you are otherwise unreachable for any reason, we may award the prize to an alternate winner, unless forbidden by applicable law.

Winners who have entered the contest as a team will be responsible to share any prize among their members. The prize will be delivered to the registered team leader. If this person becomes unavailable for any reason, the prize will be delivered to be the authorized account holder of the e-mail address used to make the winning entry.

If you are a potential winner, we may require you to sign a declaration of eligibility, use, indemnity and liability/publicity release and applicable tax forms. If you are a potential winner and are a minor in your place of residence, and we require that your parent or legal guardian will be designated as the winner, and we may require that they sign a declaration of eligibility, use, indemnity and liability/publicity release on your behalf. If you, (or your parent/legal guardian if applicable), do not sign and return these required forms within the time period listed on the winner notification message, we may disqualify you (or the designated parent/legal guardian) and select an alternate selected winner.

SECTION 11              On-line notification

We will post changes in the rules or changes in the data as well as the names of confirmed winners (after contest decisions are made by the judges) online on This list will remain posted for one year or will be made available upon request by sending email to

SECTION 12              Conditions. By entering this contest you agree:

(a)                 To abide by these official rules;

(b)                To the extent allowable under applicable law, to release and hold harmless CHALEARN and sponsors, their respective parents, subsidiaries, affiliates, employees and agents from any and all liability or any injury, loss, damage, right, claim or action of any kind arising from or in connection with this contest or any prize won save for residents of the United Kingdom, Chile, Korea, Greece, Brazil, Turkey, Hong Kong, France and Germany with respect to claims resulting from death or personal injury arising from CHALEARN€™s and Microsoft and University of Barcelona€™s negligence, for residents of the United Kingdom with respect to claims resulting from the tort of deceit or any other liabilities that may not be excluded by law, and for residents of Australia in respect of any implied condition or warranty the exclusion of which from these official rules would contravene any statute or cause any part of these official rules to be void;

(c)                 That CHALEARN€™s decisions will be final and binding on all matters related to this contest; and

(d)                That by accepting a prize, CHALEARN and competition sponsors may use your team name, your name, and your place of residence online and in print, or in any other media, in connection with this contest, without payment or compensation to you. The declaration of eligibility, use, indemnity and liability/publicity release provided to the potential winner will make reference to obtaining his/her free consent to use his/her name and place of residence. In any case, the lack of such consent does not prevent the winner from receiving the prize.

(e)                This contest will be governed by the laws of the state of California, and you consent to the exclusive jurisdiction and venue of the courts of the state of California for any disputes arising out of this contest. For residents of Austria only: you may withdraw your submission from this contest within seven days of your entry. If you withdraw within seven days of entry, your submission will be returned to you, and we will not make any use of your submission in the future. However, you will not be eligible to win a prize. If you do not withdraw within seven days of entry, you will be bound by the provisions of these official rules. For residents of the United Kingdom only: the provisions of the contracts (rights of third parties) act 1999 will not apply to this agreement. For residents of New Zealand only: the provisions of the contracts (privity) act of 1982 will not apply to this agreement. For Quebec residents: any litigation respecting the conduct or organization of a publicity contest may be submitted to the Régie des Alcools, des Courses et des Jeux for ruling. Any litigation respecting the awarding of a prize may be submitted to the Régie only for the purpose of helping the parties reach a settlement.  For residents of Israel only: this agreement does not entitle third parties to benefits under this agreement as defined in Chapter €œD€ of the Contracts Act (General Part) €“ 1973.


SECTION 13              Unforeseen event

If an unforeseen or unexpected event (including, but not limited to: someone cheating; a virus, bug, or catastrophic event corrupting data or the submission platform; someone discovering a flaw in the data or modalities of the challenge) that cannot be reasonably anticipated or controlled , (also referred to as force majeure)affects the fairness and / or integrity of this contest, we reserve the right to cancel, change or suspend this contest. This right is reserved whether the event is due to human or technical error. If a solution cannot be found to restore the integrity of the contest, we reserve the right to select winners based on the criteria specified above from among all eligible entries received before we had to cancel, change or suspend the contest subject to obtaining the approval from the Régie des Alcools, des Courses et des Jeux with respect to the province of Quebec.

Computer €œhacking€ is unlawful. If you attempt to compromise the integrity or the legitimate operation of this contest by hacking or by cheating or committing fraud in any way, we may seek damages from you to the fullest extent permitted by law. Further, we may ban you from participating in any of our future contests, so please play fairly.

SECTION 14              Sponsor

ChaLearn is the sponsor of this contest.

955 Creston Road,

Berkeley, CA 94708, USA

Microsoft, University of Barcelona, Human Pose Recovery and Behavior Analysis group, Amazon, Google, NVIDIA, IAPR, Facebook, and Disney Research  are the co-sponsors of this contest. Additional sponsors can be added during the competition period.



During the development phase of the contest and when they submit their final entries, contest participants do not need to disclose their real identity, but must provide a valid email address where we can be deliver notifications to them regarding the contest. To be eligible for prizes, however, contest participants will need to disclose their real identity to contest organizers, informing them by email of their name, professional affiliation, and address. To enter the contest, the participants will need to become users of the Codalab platform. Any profile information stored on this platform can be viewed and edited by the users. After the contest, the participants may cancel their account with the Codalab and cease to be users of that platform. All personal information will then be destroyed. The Codalab privacy policy will apply to contest information submitted by participants on the Codalab. Otherwise, CHALEARN €™s privacy policy will apply to this contest and to all information that we receive from your entry that we receive directly from you or which you have submitted as part of your contest entry on the Codalab . Please read the privacy policy on the contest entry page before accepting the official rules and submitting your entry. Please note that by accepting the official rules you are also accepting the terms of the CHALEARN privacy policy: .




Start: Feb. 12, 2016, midnight

Final Evaluation

Start: March 30, 2016, midnight

Competition Ends

March 30, 2016, midnight

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