Abstract: According to examples, a system for aligning a plurality of variously encoded content streams is described. The system may include a processor and a memory storing instructions. The processor, when executing the instructions, may cause the system to receive a request to transmit one or more packets of a message over a network, upon receive the request, designate a message sequence number (MSN) for the message, and upon receive the request, designate a packet sequence number (PSN) for one or more packets of the message.

Abstract: Exemplary embodiments relate to methods, mediums, and systems for providing group bots that participate in a conversation between multiple participants. Unlike conventional bots that typically interact with users on a one-on-one basis, the group bots may interact collectively with a group, allowing the bots to (among other things) arbitrate decisions for the group, suggest events that all of the members of the group would find agreeable, facilitate conversations by recognizing core language differences between group members and providing translations in response, etc. Furthermore, the group bot may be invoked directly from a group conversation using natural language, and may provide a response directly in the conversation. Because these capabilities are provided directly within a conversation thread, conversation participants can more readily use the bot capabilities without the need to access separate functionality.

Abstract: First game state data captured from a first client and characterizing in-game information of a first match of a peer-to-peer digital gaming tournament is received. Second game state data captured from a second client and characterizing in-game information of a second match of the peer-to-peer digital gaming tournament is received. The first match and the second match being separate gaming instances. The first game state data captured during the first match and representative of an internal state of a digital video game. The first game state data and the second game state data is compared using a predefined comparison rule by computing a measure of a performance of a first player in the first match with a measure of a performance of a second player in the second match. The comparison is provided. Related apparatus, systems, articles, and techniques are also described and illustrated.

Abstract: The attachment and proliferation of antibiotic resistant, biofilm-forming bacteria to oft-handled material surfaces has emerged as a growing concern, particularly in the biomedical, healthcare and food packaging industries. UV-curable phosphoniums bearing benzophenone anchors have been synthesized with a variety of alkyl, aryl, and fluoroalkyl functional groups at phosphorus to probe their efficacy as thermally stable antimicrobial additives in plastics or as surface coatings. In an embodiment, a phosphonium compound having the following formula has been synthesized: in which R is a phosphine group substituted with alkyl, aryl, substituted alkyl, substituted aryl, heteroalkyl or any combination thereof. These materials maintained the ability to kill biofilm-forming bacteria even after being subject to abrasion processes, demonstrating the potential to serve as long-term antimicrobial materials.

Abstract: In one embodiment, a method includes receiving a user query inputted on a head-mounted device from the head-mounted device, wherein the user query corresponds to multiple dialog-intents, executing multiple tasks corresponding to the multiple dialog-intents, generating a multi-perspective response by a stitching model based on two or more of execution results of the multiple tasks, wherein the stitching model combines the two or more of the execution results based on natural language processing, and wherein the multi-perspective response comprises a natural-language response combining the two or more execution results, and sending instructions to the head-mounted device for presenting the multi-perspective response on the head-mounted device.

Abstract: The present disclosure is directed to a networking system that provides a user experience in which users of the networking system can interact with user-generated digital content items to select and receive information about one or more products. In particular, the systems and methods involve identifying products shown within user-generated digital content items and associating the user-generated digital content items with the identified products. In addition, where a user selects a product shown within a digital content item, the systems and methods involve selectively identifying other user-generated digital content items for the user based on a coefficient between the user and the other user-generated digital content items. Moreover, the systems and methods involve tracking user-interactions with respect to digital content items and generating and providing a creation insight including an identification of one or more products predicted to engage users of the networking system.

Abstract: The disclosed computer-implemented method may include collecting a set of labels that label polygons within a training set of images as architectural structures. The method may also include creating a set of noisy labels with a predetermined degree of noise by distorting boundaries of a number of the polygons within the training set of images. Additionally, the method may include simultaneously training two neural networks by applying a co-teaching method to learn from the set of noisy labels. The method may also include extracting a preferential list of training data based on the two trained neural networks. Furthermore, the method may include training a machine learning model with the preferential list of training data. Finally, the method may include identifying one or more building footprints in a target image using the trained machine learning model. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: Systems and methods for creating multiple renditions of a social media composition may include (1) providing a composition screen configured to be used to create user compositions for use with different consumption channels of a social media application, (2) collecting, via the composition screen, a set of one or more user inputs selecting user-selected content, to be included within a user composition, that includes photographs and text, (3) creating a first rendering of the user composition, to be viewed from a first consumption channel, that includes a slideshow of the photographs with a cover card that includes the text, and (4) creating a second rendering of the user composition, to be viewed from a second consumption channel, that includes a collage of the photographs with a caption that includes the text. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: The disclosed computer-implemented method may include receiving an input from a user identifying specified persons that are to be included in a concealed list of persons. The specified persons may be unaware of their inclusion in the concealed list of persons. The method may also include generating the concealed list of persons and determining that a potential participant from the user's concealed list of persons has selected the user in a corresponding concealed list of persons that belongs to the potential participant and, in response to the determination, the method may include creating a private conversation instance that is unique to the user and the potential participant. The generated private conversation instance may include an interaction interface that allows the user and the potential participant to interact in a confidential manner. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A device includes a matrix transpose component, a matrix processing component, a data alignment component, and a data reduction component. The matrix transpose component is configured to transpose an input matrix of elements to output an output matrix of the elements that have been transposed. The matrix processing component is configured to multiply a first multiplication input matrix with a second multiplication input matrix, wherein the output matrix of the matrix transpose component is utilized as the first multiplication input matrix and a mask vector is utilized as the second multiplication input matrix. The data alignment component is configured to modify at least a portion of elements of a result of the matrix processing component. The data reduction component is configured to sum at least the elements of the modified result of the matrix processing component to determine a sum of the group of values.

Abstract: A mixed reality (MR) simulation system includes a console and a head mounted device (HMD). The MR system captures stereoscopic images from a real-world environment using outward-facing stereoscopic cameras mounted to the HMD. The MR system preprocesses the stereoscopic images to maximize contrast and then extracts a set of features from those images, including edges or corners, among others. For each feature, the MR system generates one or more two-dimensional (2D) polylines. Then, the MR system triangulates between 2D polylines found in right side images and corresponding 2D polylines found in left side images to generate a set of 3D polylines. The MR system interpolates between 3D vertices included in the 3D polylines or extrapolates additional 3D vertices, thereby generating a geometric reconstruction of the real-world environment. The MR system may map textures derived from the real-world environment onto the geometric representation faster than the geometric reconstruction is updated.

Abstract: Techniques for communicating entity references in messaging groups are described. In one embodiment, an apparatus may comprise a client messaging component operative to receive a message at a recipient client device from a messaging system, the recipient client device associated with a recipient user account, the message comprising an entity reference, the message addressed to a message thread; and extract an augmentation element for the entity reference from the message; and a user interface component operative to display the augmentation element in a message thread display for the message thread on the recipient client device. Other embodiments are described and claimed.

Abstract: A hardware module includes a high stability oscillator, a satellite signal receiver, a processor, and electrical contacts. The high stability oscillator is configured to provide a first timing reference output. The satellite signal receiver is configured to receive signals transmitted by location positioning satellites and provide a second timing reference output. The processor is configured to use the first timing reference output from the high stability oscillator and the second timing reference output from the satellite signal receiver to determine an absolute physical hardware clock value and provide the absolute physical hardware clock value to a host system. The electrical contacts are configured to allow the hardware module to be electrically and physically coupled to and removable from the host system as a single physical module.

Abstract: A method of detecting human voice activity includes determining a presence of human voice in a frame of audio signal using a plurality of features extracted from the frame of audio signal. The extracted features can include a number of zero-crossings, a periodicity metric, an energy ratio between a low frequency band and a high frequency band, and an envelope-to-floor ratio (EFR) in the frame of audio signal. Each of the features is associated with predefined criteria indicative of a presence of human voice, and based on comparisons of the features to the respective predefined criteria, the voice activity detector determines whether the frame of audio signal includes a human voice.

Abstract: A scalable hardware accelerator configured to compute video quality metrics is disclosed. In some embodiments, an accelerator for video quality metrics comprises an application-specific integrated circuit that includes a buffer memory configured to store at least a portion of a reference frame of a video and at least a corresponding portion of a distorted frame of a transcoded version of the video and that includes a processing unit configured to receive data from the buffer memory and compute a perception-based video quality metric for the distorted frame with respect to the reference frame.

Abstract: Exemplary embodiments relate to techniques for representing conversations in a messaging system, where content serves as the organizing feature or primitive of a messaging inbox. In the messaging inbox, content may be aggregated in two hierarchical tiers: first, on a per-sender basis, and second on a per-content basis. Conversational threads may be stored in buckets represented by a relationship tuple (sender, receiver). Individual content threads may be represented by a thread identifier of the structure (content ID, sender, receiver). One piece of content may be associated with multiple conversations through the thread ID. Replies may be organized in a hierarchy under the thread ID tuple. Content ephemerality may be implemented by tying the content identifier to ephemerality conditions. Different users may view the content at different times, since the thread ID tuple can be removed from a sender bucket without removing the associated content.

Abstract: According to examples, a selective acknowledgement framework may be implemented within a communication system for efficient communication of acknowledgement packets. A plurality of data packets generated from a message may be transmitted as a segment of data packets to a receiver which generates an acknowledgement packet for the segment of data packets. A compact format of acknowledgement (ACK) or negative acknowledgement (NACK) for the segment of data packets may be implemented in the acknowledgement packet via bits of a selective acknowledgement bit vector. Based on the other values also conveyed in the acknowledgement packet, the transmitter may identify those data packets that were properly received and the data packets that need to be re-transmitted.

Abstract: According to examples, a system for aligning a plurality of variously encoded content streams is described. The system may include a processor and a memory storing instructions. The processor, when executing the instructions, may cause the system to decode content data of a content item, extract signal information from the decoded content data, and process the decoded content data to align with content data from one or more other encodings utilizing the extracted signal information. The processor, when executing the instructions, may then process the decoded content data to be interchangeable with the content data from the one or more other encodings utilizing the extracted signal information and deliver one or more aligned and interchangeable encodings to a content delivery network (CDN).

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for utilizing multiple modalities to generate accurate two-dimensional floorplans based on sparse digital videos depicting three-dimensional space. In particular, in one or more embodiments, the disclosed systems extract both visual and audio information from sparse digital video coverage of portions of a three-dimensional space and utilize the extracted visual and audio information to generate a two-dimensional floorplan representing both viewed and unviewed portions of the three-dimensional space. For example, the disclosed systems utilize self-attention layers of a specialized machine learning model to maintain and leverage bi-directional relationships among sequences of visual and audio features to generate floorplan predictions associated with the three-dimensional space.