Abstract: Disclosed are an arc discharge detection method and device for a battery system, and a battery energy storage system. The arc discharge detection method for a battery system comprises: sampling a terminal voltage and a charging and discharging current of a battery system, sampling the terminal voltage of the battery system twice and calculating a first voltage difference value, and sampling the terminal voltage of the battery system and a terminal voltage of an electricity load and calculating a second voltage difference value; performing time domain and frequency domain analysis on the sampled data to obtain corresponding time domain and frequency domain feature values; and on the basis of the time domain and frequency domain feature values and the first and second voltage difference values, determining whether arc discharge features are met, so as to determine whether an arc discharge fault occurs in the battery system.

Abstract: A method, system, and program product, for determining related search terms for a domain, comprising: receiving a request for related search terms for a domain, obtaining click data on the domain for initial related search terms determined for the domain, obtaining revenue generation data for each of a plurality of the initial related search terms; determining a first set of the initial related search terms with a highest revenue or ad clicks generation; generating a second set of new related search terms, comprising: obtaining keywords that are semantically relevant, obtaining how many advertisements are targeted to the respective keyword, and obtaining for each of multiple of the respective keywords an amount that advertisers have paid over a period of time for use of the respective keyword.

Abstract: Link units include a keyword or words that, when selected, cause a client device to display a landing page having one or more content items related to the selected link unit. The use of contextual data in addition to the keyword or words of the selected link unit may further assist in selecting relevant content items to populate the landing page. The contextual data may include the unselected keyword link units and/or other keywords in a group from which the selected keyword link unit was selected. The contextual data may include assigning weights to the selected keyword link unit, the unselected keyword link units, and/or the other keywords in the group from which the selected keyword link unit was selected. The group may be identified using a unique token associated with the group and the selected keyword link unit.

Abstract: Systems and methods for evaluating information via a computer network using weighted terms are provided. A data processing system can detect an indication of user interest in subject matter of an information resource, and can identify a plurality of keywords associated with the subject matter. The data processing system can determine a weight for each of the plurality of keywords for the information resource. The data processing system can receive a request for content to provide for display with the information resource, and can evaluate the weight of each of the plurality of keywords associated with the information resource to determine one or more keywords to use for content selection. The data processing system can select content to provide for display with the information resource based at least in part on the selected keyword(s) or the weight associated with the selected keyword(s).

Abstract: Link units include a keyword or words that, when selected, cause a client device to display a landing page having one or more content items related to the selected link unit. The use of contextual data in addition to the keyword or words of the selected link unit may further assist in selecting relevant content items to populate the landing page. The contextual data may include the unselected keyword link units and/or other keywords in a group from which the selected keyword link unit was selected. The contextual data may include assigning weights to the selected keyword link unit, the unselected keyword link units, and/or the other keywords in the group from which the selected keyword link unit was selected. The group may be identified using a unique token associated with the group and the selected keyword link unit.