Abstract: A compressor that includes a frame, a rotor assembly, and a heat sink assembly. The rotor assembly includes a shaft to which an impeller, a bearing assembly and a rotor core are secured. The heat sink assembly is then secured to the bearing assembly and to the frame.

Abstract: In various embodiments, documents such as social-media postings are analyzed to identify volume bursts, and the bursts are analyzed to compute probability metrics associated with events or types of events.

Abstract: A compressor that includes an impeller, a diffuser and a shroud. The diffuser includes vanes and one or more projections, each of which extends from a top of a vane. The shroud includes one or more holes. The shroud covers the impeller and the diffuser such that each projection protrudes through one of the holes. The shroud is then secured to the projections by an adhesive.

Abstract: In various embodiments, grades are assigned to student annotations associated with an educational resource based on grading features derived utilizing human grades of annotations in a training set of annotations.

Abstract: In various embodiments, subject matter for improving discussions in connection with an educational resource is identified and summarized by analyzing annotations made by students assigned to a discussion group to identify high-quality annotations likely to generate responses and stimulate discussion threads, identifying clusters of high-quality annotations relating to the same portion or related portions of the educational resource, extracting and summarizing text from the annotations, and combining, in an electronically represented document, the extracted and summarized text and (i) at least some of the annotations and the portion or portions of the educational resource or (ii) clickable links thereto.

Abstract: In various embodiments, online discussions in connection with an educational resource are improved by analyzing annotations made by students assigned to a discussion group to identify high-quality annotations likely to generate responses and stimulate discussion threads and by making the identified annotations visible to students not assigned to the discussion group.

Abstract: In various embodiments, actions taken on student devices by students using an interactive educational resource are analyzed to determine the students' likelihood of educational success and, if the likelihood is less than a threshold, the students are notified of deficiencies in their actions.

Abstract: Systems and methods are provided for classifying text based on language using one or more computer servers and storage devices. A computer-implemented method includes receiving a training set of elements, each element in the training set being assigned to one of a plurality of categories and having one of a plurality of content profiles associated therewith; receiving a population set of elements, each element in the population set having one of the plurality of content profiles associated therewith; and calculating using at least one of a stacked regression algorithm, a bias formula algorithm, a noise elimination algorithm, and an ensemble method consisting of a plurality of algorithmic methods the results of which are averaged, based on the content profiles associated with and the categories assigned to elements in the training set and the content profiles associated with the elements of the population set, a distribution of elements of the population set over the categories.

Abstract: In a computer assisted clustering method, a clustering space is generated from fixed basis partitions that embed the entire space of all possible clusterings. A lower dimensional clustering space is fu-reated from the space of all possible clusterings by isometrically embedding the space of all possible clusterings in a lower dimensional Euclidean space. This lower dimensional space is then sampled based on the number of documents in the corpus. Partitions are then developed based on the samples that tessellate the space. Finally, using clusterings representative of these tessellations, a two-dimensional representation for users to explore is created.

Abstract: Anonymous pretesting items for subsequent presentation to participants in a group enable an instructor to validate responses and revise the items accordingly.

Abstract: Systems and methods are provided for classifying text based on language using one or more computer servers and storage devices. A computer-implemented method includes receiving a training set of elements, each element in the training set being assigned to one of a plurality of categories and having one of a plurality of content profiles associated therewith; receiving a population set of elements, each element in the population set having one of the plurality of content profiles associated therewith; and calculating using at least one of a stacked regression algorithm, a bias formula algorithm, a noise elimination algorithm, and an ensemble method consisting of a plurality of algorithmic methods the results of which are averaged, based on the content profiles associated with and the categories assigned to elements in the training set and the content profiles associated with the elements of the population set, a distribution of elements of the population set over the categories.

Abstract: In various embodiments, documents are searched and retrieved via receipt of a search query, electronically identifying a reference set of relevant documents, providing a search set of documents, creating a database comprising at least some of the documents of the search set and the reference set, computationally classifying the documents in the database, extracting keywords from the search set and one or more classified sets, optionally filtering the extracted keywords, and electronically identifying at least some of the documents from the database that contain one or more of the extracted keywords.

Abstract: A policy framework is maintained on the computing device, and the computing device communicates with a policy server of an enterprise network over a network to receive a set of policy instructions. The policy instructions are executed through the policy framework in order to implement one or more policies that control the mobile computing device's access to resources of the enterprise network.

Abstract: A cage within a communication module may have a plurality of receptacles. A cover may cover at least a portion of the cage. A thermal conduction system may include a top wrap, a first side wrap, and a second side wrap. The top wrap may comprise a top wrap top portion covering at least a portion of the cover top side and a top wrap back portion covering at least a portion of the cover back side. The first side wrap may comprise a first side wrap back portion covering at least a portion of the top wrap back portion, a first side wrap side portion covering at least a portion of the cover first side, and first side fingers extending through a first slit in the cover into the cage. A heat sink may be attached to the first side wrap back portion.

Abstract: Representative embodiments of a method for grouping participants in an activity include the steps of: (i) defining a grouping policy; (ii) storing, in a database, participant records that include a participant identifier, a characteristic associated with the participant, and/or an identifier for a participant's handheld device; (iii) defining groupings based on the policy and characteristics of the participants relating to the policy and to the activity; and (iv) communicating the groupings to the handheld devices to establish the groups.

Abstract: A stator includes a plurality of stator elements, each stator element comprising a c-shaped core having two poles. Each pole of each stator element is secured to a pole of an adjacent stator element by a bridge formed of a non-magnetic material molded onto the poles.

Abstract: Representative embodiments of a method for grouping participants in an activity include the steps of: (i) defining a grouping policy; (ii) storing, in a database, participant records that include a participant identifier, a characteristic associated with the participant, and/or an identifier for a participant's handheld device; (iii) defining groupings based on the policy and characteristics of the participants relating to the policy and to the activity; and (iv) communicating the groupings to the handheld devices to establish the groups.

Abstract: A method of computerized content analysis that gives “approximately unbiased and statistically consistent estimates” of a distribution of elements of structured, unstructured, and partially structured source data among a set of categories. In one embodiment, this is done by analyzing a distribution of small set of individually-classified elements in a plurality of categories and then using the information determined from the analysis to extrapolate a distribution in a larger population set. This extrapolation is performed without constraining the distribution of the unlabeled elements to be equal to the distribution of labeled elements, nor constraining a content distribution of content of elements in the labeled set (e.g., a distribution of words used by elements in the labeled set) to be equal to a content distribution of elements in the unlabeled set.

Abstract: A client application is installed on a computing device. The client application is operable to implement a set of services for use with an enterprise network. The computing device accesses the enterprise network using the client application, and receives and processes script logic from the enterprise network. The script logic is executed through the client application to provide at least one of a user-interface or workflow for the set of services.

Abstract: System and methods for managing content modification messages are provided. In some embodiments, a request to send a modification message to a second user is received from a first user. The request to send the modification message pertains to a modification made to a first user-specific version corresponding to the first user and represented by a first delta. The modification message comprising a second delta is generated. The modification message includes second instructions to modify a second user-specific version to include the modification within the second user-specific version by resolving the first delta and the first user-specific version to the second user-specific version. A message indicator for the modification message is provides to a client device of the second user. The message indicator identifies the first user as the sender of the modification message.