Highlighting isn't a nice pretty thing - its kind of a hacky. There are
three highlighters built in
<http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/search-request-highlighting.html>
to Elasticsearch and they all work differently. You should try all of them
and see if they do what you want. They all come at the problem from a
different perspective and have their own idiosyncrasies. I maintain a
highlighter
plugin <https://github.com/wikimedia/search-highlighter> as well that you
can use as a forth option. It merges lots of the implementation strategies
that the other ones use together and attempts to give you more options and
it might do what you need.
Nik
On Tue, Dec 23, 2014 at 12:44 PM, Yang Liu <yl...@nyu.edu> wrote:
> No one knows anything about this? I really appreciate anything you offered.
>
>
> On Monday, December 22, 2014 5:27:57 PM UTC-5, Yang Liu wrote:
>>
>> Hi, guys,
>> I have a question about highlight query in ES.
>> *Below is my query,*
>> {
>> "_source": [
>>
>> .....
>> ],
>> "highlight": {
>> "fields": {
>> "FDS_ATTACHMENTS": {
>> "type": "plain"
>> },
>> "FDS_ATTACHMENTS.no_stem": {
>> "type": "plain"
>> },
>> "FDS_ATTACHMENTS.with_case": {
>> "type": "plain"
>> },
>> "headline": {
>> "type": "plain"
>> },
>> "headline.no_stem": {
>> "type": "plain"
>> },
>> "headline.with_case": {
>> "type": "plain"
>> }
>> },
>> "fragment_size": 500,
>> "highlight_query": {
>> "bool": {
>> "must": [
>> {
>> "bool": {
>> "minimum_should_match": 1,
>> "should": [
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "agreement"
>> }
>> }
>> ],
>> "in_order": true,
>> "slop": 0
>> }
>> }
>> ]
>> }
>> },
>> {
>> "bool": {
>> "minimum_should_match": 1,
>> "should": [
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "agreement"
>> }
>> },
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "merger"
>> }
>> }
>> ],
>> "in_order": false,
>> "slop": 5
>> }
>> }
>> ]
>> }
>> }
>> ]
>> }
>> },
>> "number_of_fragments": 50,
>> "post_tags": [
>> "</font>"
>> ],
>> "pre_tags": [
>> "<font color=red>"
>> ],
>> "require_field_match": true
>> },
>> "query": {
>> "filtered": {
>> "filter": {
>> "range": {
>> "story_datetime": {
>> "gte": "20141221t000000",
>> "lte": "20141222t235959"
>> }
>> }
>> },
>> "query": {
>> "bool": {
>> "must": [
>> {
>> "bool": {
>> "minimum_should_match": 1,
>> "should": [
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "agreement"
>> }
>> }
>> ],
>> "in_order": true,
>> "slop": 0
>> }
>> },
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "headline.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "headline.no_stem": "agreement"
>> }
>> }
>> ],
>> "in_order": true,
>> "slop": 0
>> }
>> },
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "headline2.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "headline2.no_stem": "agreement"
>> }
>> }
>> ],
>> "in_order": true,
>> "slop": 0
>> }
>> }
>> ]
>> }
>> },
>> {
>> "bool": {
>> "minimum_should_match": 1,
>> "should": [
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "agreement"
>> }
>> },
>> {
>> "span_term": {
>> "FDS_ATTACHMENTS.no_stem": "merger"
>> }
>> }
>> ],
>> "in_order": false,
>> "slop": 5
>> }
>> },
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "headline.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "headline.no_stem": "agreement"
>> }
>> },
>> {
>> "span_term": {
>> "headline.no_stem": "merger"
>> }
>> }
>> ],
>> "in_order": false,
>> "slop": 5
>> }
>> },
>> {
>> "span_near": {
>> "clauses": [
>> {
>> "span_term": {
>> "headline2.no_stem": "rights"
>> }
>> },
>> {
>> "span_term": {
>> "headline2.no_stem": "agreement"
>> }
>> },
>> {
>> "span_term": {
>> "headline2.no_stem": "merger"
>> }
>> }
>> ],
>> "in_order": false,
>> "slop": 5
>> }
>> }
>> ]
>> }
>> }
>> ]
>> }
>> }
>> }
>> },
>> "size": 50,
>> "sort": [
>> {
>> "_score": {
>> "ignore_unmapped": true,
>> "order": "desc"
>> }
>> },
>> {
>> "story_datetime": {
>> "order": "desc"
>> }
>> }
>> ]
>> }
>>
>> And here is a response I got,
>>
>> - of the Transactions set forth in the Offering Memorandum, and
>> redeeming the Notes, if applicable and (d) conducting such other
>> activities
>> as are necessary or appropriate to carry out the activities described
>> above. Prior to the Merger Date, the Company shall not own, hold or
>> otherwise have any interest in any material assets other than cash and
>> cash
>> equivalents and its <font color=red>rights</font> and obligations under
>> the
>> <font color=red>Merger</font> <font color=red>Agreement</font>.
>> ARTICLE 5. SUCCESSORS Section 5.01
>>
>> You could see that the slop between <font color=red>rights</font> and <font
>> color=red>Agreement</font> are definitely more than 0, not adjacent at
>> all!
>> Could someone give me suggestions that how I can change the query to make
>> sure that in all the segments, rights and agreement are adjacent.
>> I have set the slop to be 0 in the highlight query, and I don't know why
>> ES not skip this segment, since it does not match the criteria.
>>
>> Thank you very much!
>>
>>
>>
>>
>>
>>
>>
>> --
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