Abstract: Systems and methods for managing autonomous vehicles to address traffic anomalies are provided. In one example embodiment, a method includes detecting, by one or more computing devices, an existence of a traffic anomaly within a geographic area. The method includes determining, by the one or more computing devices, at least one autonomous vehicle to address the traffic anomaly within the geographic area. The method includes providing, by the one or more computing devices, a communication to the at least one autonomous vehicle instructing the autonomous vehicle to enter into a traffic reduction operation mode to address the traffic anomaly. The traffic reduction operation mode is based at least in part on a profile associated with the traffic reduction operation mode. The profile associated with the traffic reduction operation mode is stored onboard the autonomous vehicle. The autonomous vehicle is configured to operate in the traffic reduction operation mode.

Abstract: In one embodiment, a method includes identifying a shared visual concept in visual-media items based on shared visual features in images of the visual-media items; extracting, for each of the visual-media items, n-grams from communications associated with the visual-media item; generating, in a d-dimensional space, an embedding for each of the visual-media items at a location based on the visual concepts included in the visual-media item; generating, in the d-dimensional space, an embedding for each of the extracted n-grams at a location based on a frequency of occurrence of the n-gram in the communications associated with the visual-media items; and associating, with the shared visual concept, the extracted n-grams that have embeddings within a threshold area of the embeddings for the identified visual-media items.

Abstract: In one embodiment, a method includes receiving a plurality of search queries comprising n-grams; identifying a subset of the plurality of search queries as being queries for visual-media items based on one or more n-grams of the search query being associated with visual-media content; calculating, for each of the n-grams of the search queries of the subset, a popularity-score based on a count of the search queries in the subset that include the n-gram; determining popular n-grams, wherein each of the popular n-grams is an n-gram of the search queries of the subset of search queries having a popularity-score greater than a threshold popularity-score; and selecting one or more of the popular n-grams for training a visual-concept recognition system, wherein each of the popular n-grams is selected based on whether it is associated with a visual concept.

Abstract: A device for controlling personal protection apparatus in a vehicle includes: at least one sensor unit that acquires at least one physical quantity; and evaluation and control unit which (i) produces, from the at least one acquired physical quantity, at least one signal curve that characterizes an impact, (ii) determines, as a function of an energy dissipation behavior of the vehicle, at least one temporal phase in the produced signal curve, and (iii) evaluates the at least one phase for crash classification and for a triggering decision for the personal protection apparatus. The evaluation and control unit retroactively calculates at least one feature of the energy dissipation based on a characteristic time in the signal curve that represents the end of a first temporal phase.

Abstract: In one embodiment, a method includes identifying a shared visual concept in visual-media items based on shared visual features in images of the visual-media items; extracting, for each of the visual-media items, n-grams from communications associated with the visual-media item; generating, in a d-dimensional space, an embedding for each of the visual-media items at a location based on the visual concepts included in the visual-media item; generating, in the d-dimensional space, an embedding for each of the extracted n-grams at a location based on a frequency of occurrence of the n-gram in the communications associated with the visual-media items; and associating, with the shared visual concept, the extracted n-grams that have embeddings within a threshold area of the embeddings for the identified visual-media items.

Abstract: In one embodiment, a method includes receiving a query of a first user; retrieving videos that match the query; determining a filtered set of videos, wherein the filtering includes removing duplicate videos based on the duplicate videos having a digital fingerprint that is within a threshold degree of sameness from that of a modal video; calculating, for each video, similarity-scores that correspond to a degree of similarity between the video and another video in the filtered set; grouping the videos into clusters that include videos with similarity-scores greater than a threshold similarity-score with respect to each other video in the cluster; and sending, to the first user, a search-results interface including search results for the videos that are organized within the interface based on the respective clusters of their corresponding videos.

Abstract: In one embodiment, a method includes identifying a shared visual concept in visual-media items based on shared visual features in images of the visual-media items; extracting, for each of the visual-media items, n-grams from communications associated with the visual-media item; generating, in a d-dimensional space, an embedding for each of the visual-media items at a location based on the visual concepts included in the visual-media item; generating, in the d-dimensional space, an embedding for each of the extracted n-grams at a location based on a frequency of occurrence of the n-gram in the communications associated with the visual-media items; and associating, with the shared visual concept, the extracted n-grams that have embeddings within a threshold area of the embeddings for the identified visual-media items.

Abstract: In one embodiment, a method includes sending, to a first client system of a first user, a first trending module having references to a first set of trending topics, where one of the references does not include a live badge; generate a trending-topic interface corresponding to a first trending topic in the first set of trending topics, wherein the trending-topic interface comprises a live module containing at least one live video associated with the first trending topic; storing a reference to the live module with a news-event object; querying the news-event object to determine whether a live module is associated with the first trending topic; and sending, to a second client system for display, a second trending module having references to a second set of trending topic that includes the first trending topic, wherein a reference to the first trending topic includes a live badge.

Abstract: In one embodiment, a method includes receiving a plurality of search queries comprising n-grams; identifying a subset of the plurality of search queries as being queries for visual-media items based on one or more n-grams of the search query being associated with visual-media content; calculating, for each of the n-grams of the search queries of the subset, a popularity-score based on a count of the search queries in the subset that include the n-gram; determining popular n-grams, wherein each of the popular n-grams is an n-gram of the search queries of the subset of search queries having a popularity-score greater than a threshold popularity-score; and selecting one or more of the popular n-grams for training a visual-concept recognition system, wherein each of the popular n-grams is selected based on whether it is associated with a visual concept.

Abstract: In one embodiment, a method includes accessing a first instance of content to be uploaded to a server, generating a second instance of the content from the first instance, automatically uploading to the server the second instance of the content, and automatically uploading to the server the first instance of the content in response to occurrence of a pre-determined upload condition. The first instance has a first file size and the second instance has a second file size that is smaller than the first file size. The upload of the second instance makes the content available for access at least in part by one or more second users at an immediate point in time. The upload of the first instance of the content makes the content available for access by the second users in an original version.

Abstract: In one embodiment, a method includes receiving a query from a user for videos; identifying videos matching the query; retrieving, for each identified video, a set of keyframes that are associated with one or more concepts; calculating, for each keyframe of each identified video, a keyframe-score based on a prevalence of the concepts associated with the keyframe, determined with reference to the concepts associated with each other keyframe in the set of retrieved keyframes for the identified video; and sending, to the first user, a search-results interface including search results corresponding to one or more of the identified videos, each search result comprising keyframes for the corresponding identified video having keyframe-scores greater than a threshold keyframe-score.

Abstract: Techniques to share images in a social networking system. In an embodiment, an image is received from a first user, the image is associated with a first archive of the first user within a social networking system, and the image is associated with a second archive of a second user within the social networking system without the social networking system receiving a request from the second user to download the image. The image may be received from a mobile device. The image may be captured by a camera of a mobile device. The image may be automatically uploaded from a mobile device. A request may be received from the second user to include the image in the second archive associated with the second user. Associating the image with the second archive of the second user may comprise including a link to the image in the second archive.

Abstract: Techniques to allow for optimizing an image based on an operational context. An operational context including at least one attribute of a client associated with a user of a social networking system is determined. An optimized image is created based on the operational context for provision to the user. The determining the operational context may comprise receiving a client identifier and determining the at least one attribute of the client based on the client identifier. The determining the operational context may comprise receiving location coordinates and determining quality of a data connection based on the location coordinates. The determining the operational context may comprise determining at least one usage trend in at least one geographic locality. The optimized image is provided to an image repository associated with the at least one geographic locality. The operational context may comprise at least one user-defined setting.

Abstract: In one embodiment, a method includes, by a server computing device, providing first instructions to a client device to display a user interface including a first icon associated with a third-party system and a share shutter button, a selectable button to capture and designate one or more media items for sharing. The method includes receiving one or more selections of the share shutter button. The method includes providing second instructions to the client device to display, for each selection of the share shutter button, an animation indicating that the media item has been captured and designated. The second instructions include instructions to display a copy of the media item centered in the user interface and instructions to dimensionally reduce the copy of the media item while moving the copy toward a location of the first icon associated with the third-party system until the copy disappears from the user interface.

Abstract: Techniques to allow for ease of use of a photo browsing interface of a social networking system. In an embodiment, a designation of a first image for sharing is received from within a view. A first animation indicating that the first image has been designated for sharing is displayed. The displaying may comprise miniaturizing a copy of the first image. The miniaturizing may proceed from a first location within the view to a second location within the view. The first location may be associated with at least one of a center of the view and an option to designate the first image for sharing. The second location may be associated with a message compose option.

Abstract: An apparatus and method of delivering a precisely sized, homogeneous field of light within an optical system. The apparatus operates equally well over UV, visible, and NIR wavelengths, over a wide range of input beam divergence and regardless of heterogeneity. A tapered or contoured homogenizing rod that creates an evenly distributed illumination at a target area of specific size.

Abstract: Techniques to share images in a social networking system. In an embodiment, an image is received from a first user, the image is associated with a first archive of the first user within a social networking system, and the image is associated with a second archive of a second user within the social networking system without the social networking system receiving a request from the second user to download the image. The image may be received from a mobile device. The image may be captured by a camera of a mobile device. The image may be automatically uploaded from a mobile device. A request may be received from the second user to include the image in the second archive associated with the second user. Associating the image with the second archive of the second user may comprise including a link to the image in the second archive.

Abstract: A system and method that images biological samples and uses chromophores to analyze the imaged samples. The chromophore analysis can be done by itself or in conjunction with fluorophore analysis in High Content Imaging systems. To perform chromophore analysis the biological samples can be labeled with different chromophores and imaged using transmitted light that is at least partially absorbed by the chromophores. To also perform fluorophore analysis the samples can also be labeled with fluorophores that are excited by excitation light. The chromophore analysis and fluorophore analysis can be performed separately or concurrently using a High Content Imaging system. The system provides the expanded capability by illuminating the chromophore-labeled samples with transmitted light of different wavelengths and automatically detecting the images which represent the differential absorption of the colored lights by the sample.

Abstract: In one embodiment, a method includes sending, from a client system of a first user to a server of an online social network, an image portraying at least a first person and determining, for each user in a first set of users, a facial-recognition score with respect to the first person portrayed in the image. The facial-recognition score is based at least in part on a facial-representation associated with the user being compared with the image. The method further includes presenting, at the client system, one or more tag suggestions for the first person portrayed in the image based on the facial-recognition scores and a social-graph affinity associated with one or more users of the first set of users and receiving a selection of a particular tag suggestion by the first user. Each tag suggestion corresponds to a particular user of the first set of users.

Abstract: A system and method that images biological samples and uses chromophores to analyze the imaged samples. The chromophore analysis can be done by itself or in conjunction with fluorophore analysis in High Content Imaging systems. To perform chromophore analysis the biological samples can be labeled with different chromophores and imaged using transmitted light that is at least partially absorbed by the chromophores. To also perform fluorophore analysis the samples can also be labeled with fluorophores that are excited by excitation light. The chromophore analysis and fluorophore analysis can be performed separately or concurrently using a High Content Imaging system. The system provides the expanded capability by illuminating the chromophore-labeled samples with transmitted light of different wavelengths and automatically detecting the images which represent the differential absorption of the colored lights by the sample.